diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/image_processing_idefics.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/image_processing_idefics.py new file mode 100644 index 0000000000000000000000000000000000000000..2b317da05d498b7a3306c46b642935328babaecd --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/image_processing_idefics.py @@ -0,0 +1,171 @@ +# coding=utf-8 +# Copyright 2022 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Image processor class for Idefics.""" + +from typing import Callable, Dict, List, Optional, Union + +from PIL import Image + +from ...image_processing_utils import BaseImageProcessor, BatchFeature +from ...image_transforms import resize, to_channel_dimension_format +from ...image_utils import ( + ChannelDimension, + ImageInput, + PILImageResampling, + make_list_of_images, + to_numpy_array, + valid_images, +) +from ...utils import TensorType, is_torch_available + + +IDEFICS_STANDARD_MEAN = [0.48145466, 0.4578275, 0.40821073] +IDEFICS_STANDARD_STD = [0.26862954, 0.26130258, 0.27577711] + + +def convert_to_rgb(image): + # `image.convert("RGB")` would only work for .jpg images, as it creates a wrong background + # for transparent images. The call to `alpha_composite` handles this case + if image.mode == "RGB": + return image + + image_rgba = image.convert("RGBA") + background = Image.new("RGBA", image_rgba.size, (255, 255, 255)) + alpha_composite = Image.alpha_composite(background, image_rgba) + alpha_composite = alpha_composite.convert("RGB") + return alpha_composite + + +class IdeficsImageProcessor(BaseImageProcessor): + r""" + Constructs a Idefics image processor. + + Args: + image_size (`int`, *optional*, defaults to 224): + Resize to image size + image_mean (`float` or `List[float]`, *optional*, defaults to `IDEFICS_STANDARD_MEAN`): + Mean to use if normalizing the image. This is a float or list of floats the length of the number of + channels in the image. Can be overridden by the `image_mean` parameter in the `preprocess` method. Can be + overridden by the `image_mean` parameter in the `preprocess` method. + image_std (`float` or `List[float]`, *optional*, defaults to `IDEFICS_STANDARD_STD`): + Standard deviation to use if normalizing the image. This is a float or list of floats the length of the + number of channels in the image. Can be overridden by the `image_std` parameter in the `preprocess` method. + Can be overridden by the `image_std` parameter in the `preprocess` method. + image_num_channels (`int`, *optional*, defaults to 3): + Number of image channels. + """ + + model_input_names = ["pixel_values"] + + def __init__( + self, + image_size: int = 224, + image_mean: Optional[Union[float, List[float]]] = None, + image_std: Optional[Union[float, List[float]]] = None, + image_num_channels: Optional[int] = 3, + **kwargs, + ) -> None: + super().__init__(**kwargs) + + self.image_size = image_size + self.image_num_channels = image_num_channels + self.image_mean = image_mean + self.image_std = image_std + + def preprocess( + self, + images: ImageInput, + image_num_channels: Optional[int] = 3, + image_size: Optional[Dict[str, int]] = None, + image_mean: Optional[Union[float, List[float]]] = None, + image_std: Optional[Union[float, List[float]]] = None, + transform: Callable = None, + return_tensors: Optional[Union[str, TensorType]] = TensorType.PYTORCH, + **kwargs, + ) -> TensorType: + """ + Preprocess a batch of images. + + Args: + images (`ImageInput`): + A list of images to preprocess. + image_size (`int`, *optional*, defaults to `self.image_size`): + Resize to image size + image_num_channels (`int`, *optional*, defaults to `self.image_num_channels`): + Number of image channels. + image_mean (`float` or `List[float]`, *optional*, defaults to `IDEFICS_STANDARD_MEAN`): + Mean to use if normalizing the image. This is a float or list of floats the length of the number of + channels in the image. Can be overridden by the `image_mean` parameter in the `preprocess` method. Can + be overridden by the `image_mean` parameter in the `preprocess` method. + image_std (`float` or `List[float]`, *optional*, defaults to `IDEFICS_STANDARD_STD`): + Standard deviation to use if normalizing the image. This is a float or list of floats the length of the + number of channels in the image. Can be overridden by the `image_std` parameter in the `preprocess` + method. Can be overridden by the `image_std` parameter in the `preprocess` method. + transform (`Callable`, *optional*, defaults to `None`): + A custom transform function that accepts a single image can be passed for training. For example, + `torchvision.Compose` can be used to compose multiple transforms. If `None` - an inference mode is + assumed - and then a preset of inference-specific transforms will be applied to the images + + Returns: + a PyTorch tensor of the processed images + + """ + image_size = image_size if image_size is not None else self.image_size + image_num_channels = image_num_channels if image_num_channels is not None else self.image_num_channels + image_mean = image_mean if image_mean is not None else self.image_mean + image_std = image_std if image_std is not None else self.image_std + size = (image_size, image_size) + + if isinstance(images, list) and len(images) == 0: + return [] + + images = make_list_of_images(images) + + if not valid_images(images): + raise ValueError( + "Invalid image type. Must be of type PIL.Image.Image, numpy.ndarray, " + "torch.Tensor, tf.Tensor or jax.ndarray." + ) + + # For training a user needs to pass their own set of transforms as a Callable. + # For reference this is what was used in the original IDEFICS training: + # transform = transforms.Compose([ + # convert_to_rgb, + # transforms.RandomResizedCrop((size, size), scale=(0.9, 1.0), interpolation=transforms.InterpolationMode.BICUBIC), + # transforms.ToTensor(), + # transforms.Normalize(mean=image_mean, std=image_std), + # ]) + if transform is not None: + if not is_torch_available(): + raise ImportError("To pass in `transform` torch must be installed") + import torch + + images = [transform(x) for x in images] + return torch.stack(images) + + # for inference we do the exact transforms that were used to train IDEFICS + images = [convert_to_rgb(x) for x in images] + # further transforms expect numpy arrays + images = [to_numpy_array(x) for x in images] + images = [resize(x, size, resample=PILImageResampling.BICUBIC) for x in images] + images = [self.rescale(image=image, scale=1 / 255) for image in images] + images = [self.normalize(x, mean=image_mean, std=image_std) for x in images] + images = [to_channel_dimension_format(x, ChannelDimension.FIRST) for x in images] + images = BatchFeature(data={"pixel_values": images}, tensor_type=return_tensors)["pixel_values"] + + return images + + +__all__ = ["IdeficsImageProcessor"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/modeling_idefics.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/modeling_idefics.py new file mode 100644 index 0000000000000000000000000000000000000000..3ca196936c3e93bd7e0e90e5ed56ef5c20cf739b --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/modeling_idefics.py @@ -0,0 +1,1744 @@ +# coding=utf-8 +# Copyright 2022 EleutherAI and the HuggingFace Inc. team. All rights reserved. +# +# This code is based on EleutherAI's GPT-NeoX library and the GPT-NeoX +# and OPT implementations in this library. It has been modified from its +# original forms to accommodate minor architectural differences compared +# to GPT-NeoX and OPT used by the Meta AI team that trained the model. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""PyTorch Idefics model.""" + +from dataclasses import dataclass +from typing import Any, Dict, List, Optional, Tuple, Union + +import torch +import torch.nn.functional as F +import torch.utils.checkpoint +from torch import nn +from torch.nn import CrossEntropyLoss + +from ...activations import ACT2FN +from ...cache_utils import Cache, DynamicCache, StaticCache +from ...generation import GenerationMixin +from ...modeling_attn_mask_utils import AttentionMaskConverter +from ...modeling_outputs import ModelOutput +from ...modeling_utils import PretrainedConfig, PreTrainedModel +from ...pytorch_utils import ALL_LAYERNORM_LAYERS +from ...utils import ( + add_start_docstrings, + add_start_docstrings_to_model_forward, + is_torch_flex_attn_available, + logging, + replace_return_docstrings, +) +from .configuration_idefics import IdeficsConfig +from .perceiver import IdeficsPerceiverResampler +from .vision import IdeficsVisionTransformer + + +if is_torch_flex_attn_available(): + from torch.nn.attention.flex_attention import BlockMask + + from ...integrations.flex_attention import make_flex_block_causal_mask + + +logger = logging.get_logger(__name__) + +_CONFIG_FOR_DOC = "IdeficsConfig" + + +@dataclass +class IdeficsBaseModelOutputWithPast(ModelOutput): + """ + Base class for Idefics model's outputs that may also contain a past key/values (to speed up sequential decoding). + + Args: + last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + Sequence of hidden-states at the output of the last layer of the model. + + If `past_key_values` is used only the last hidden-state of the sequences of shape `(batch_size, 1, + hidden_size)` is output. + past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape + `(batch_size, num_heads, sequence_length, embed_size_per_head)`) and optionally if + `config.is_encoder_decoder=True` 2 additional tensors of shape `(batch_size, num_heads, + encoder_sequence_length, embed_size_per_head)`. + + Contains pre-computed hidden-states (key and values in the self-attention blocks and optionally if + `config.is_encoder_decoder=True` in the cross-attention blocks) that can be used (see `past_key_values` + input) to speed up sequential decoding. + hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings, if the model has an embedding layer, + + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. + + Hidden-states of the model at the output of each layer plus the optional initial embedding outputs. + attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. + + Attentions weights after the attention softmax, used to compute the weighted average in the self-attention + heads. + image_hidden_states (`tuple(torch.FloatTensor)`, *optional*): + Tuple of `torch.FloatTensor` (one for the output of the image embeddings, `(batch_size, num_images, + sequence_length, hidden_size)`. + + image_hidden_states of the model produced by the vision encoder, and optionally by the perceiver + """ + + last_hidden_state: torch.FloatTensor = None + past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None + hidden_states: Optional[Tuple[torch.FloatTensor]] = None + attentions: Optional[Tuple[torch.FloatTensor]] = None + image_hidden_states: Optional[Tuple[torch.FloatTensor]] = None + + +@dataclass +class IdeficsCausalLMOutputWithPast(ModelOutput): + """ + Base class for Idefics causal language model (or autoregressive) outputs. + + Args: + loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned when `labels` is provided): + Language modeling loss (for next-token prediction). + logits (`torch.FloatTensor` of shape `(batch_size, sequence_length, config.vocab_size)`): + Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax). + past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape + `(batch_size, num_heads, sequence_length, embed_size_per_head)`) + + Contains pre-computed hidden-states (key and values in the self-attention blocks) that can be used (see + `past_key_values` input) to speed up sequential decoding. + hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings, if the model has an embedding layer, + + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. + + Hidden-states of the model at the output of each layer plus the optional initial embedding outputs. + attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. + + Attentions weights after the attention softmax, used to compute the weighted average in the self-attention + heads. + image_hidden_states (`tuple(torch.FloatTensor)`, *optional*): + Tuple of `torch.FloatTensor` (one for the output of the image embeddings, `(batch_size, num_images, + sequence_length, hidden_size)`. + + image_hidden_states of the model produced by the vision encoder, and optionally by the perceiver + """ + + loss: Optional[torch.FloatTensor] = None + logits: torch.FloatTensor = None + past_key_values: Optional[List[torch.FloatTensor]] = None + hidden_states: Optional[Tuple[torch.FloatTensor]] = None + attentions: Optional[Tuple[torch.FloatTensor]] = None + image_hidden_states: Optional[Tuple[torch.FloatTensor]] = None + + +def expand_inputs_for_generation( + input_ids, + expand_size=1, + is_encoder_decoder=False, + attention_mask=None, + encoder_outputs=None, + **model_kwargs, +): + expanded_return_idx = ( + torch.arange(input_ids.shape[0]).view(-1, 1).repeat(1, expand_size).view(-1).to(input_ids.device) + ) + input_ids = input_ids.index_select(0, expanded_return_idx) + model_kwargs["pixel_values"] = model_kwargs.get("pixel_values", None) + model_kwargs["image_encoder_embeddings"] = model_kwargs.get("image_encoder_embeddings", None) + model_kwargs["perceiver_embeddings"] = model_kwargs.get("perceiver_embeddings", None) + model_kwargs["image_attention_mask"] = model_kwargs.get("image_attention_mask", None) + + if "token_type_ids" in model_kwargs: + token_type_ids = model_kwargs["token_type_ids"] + model_kwargs["token_type_ids"] = token_type_ids.index_select(0, expanded_return_idx) + + if attention_mask is not None: + model_kwargs["attention_mask"] = attention_mask.index_select(0, expanded_return_idx) + + if model_kwargs["image_attention_mask"] is not None: + model_kwargs["image_attention_mask"] = model_kwargs["image_attention_mask"].index_select( + 0, expanded_return_idx + ) + + if model_kwargs["pixel_values"] is not None: + model_kwargs["pixel_values"] = model_kwargs["pixel_values"].index_select(0, expanded_return_idx) + + elif model_kwargs["image_encoder_embeddings"] is not None: + model_kwargs["image_encoder_embeddings"] = model_kwargs["image_encoder_embeddings"].index_select( + 0, expanded_return_idx + ) + + elif model_kwargs["perceiver_embeddings"] is not None: + model_kwargs["perceiver_embeddings"] = model_kwargs["perceiver_embeddings"].index_select( + 0, expanded_return_idx + ) + + return input_ids, model_kwargs + + +def freeze_model(model, module_exceptions=[]): + mapping = { + "LayerNorm": nn.LayerNorm, + "Linear": nn.Linear, + "Embedding": nn.Embedding, + } + module_exceptions_mapped = [mapping[m] for m in module_exceptions] + for module in model.modules(): + if module_exceptions and any(isinstance(module, t) for t in module_exceptions_mapped): + module.requires_grad_(True) # Explicitely setting it to true to avoid any mistakes + else: + module.requires_grad_(False) + return model + + +class IdeficsDecoupledEmbedding(nn.Embedding): + # Derived from https://pytorch.org/docs/stable/_modules/torch/nn/modules/sparse.html#Embedding + """ + Implements a decoupling of parameters to allow freezing (or not) a subset of the embeddings. In practise, the + regular `weight` can be trained or frozen (i.e. `partially_freeze=True`), and if `num_additional_embeddings` > 0, + then it will create `num_additional_embeddings` additional parameters that are always trained. If + `num_additional_embeddings=0`, then the module defaults back to the regular behavior of `nn.Embedding`. + """ + + def __init__( + self, + num_embeddings, + num_additional_embeddings, + embedding_dim, + partially_freeze: Optional[bool] = False, + device=None, + dtype=None, + padding_idx=None, + **kwargs, + ) -> None: + """ + Args: + num_embeddings (`int`): + Size of the dictionary of embeddings + num_additional_embeddings (`int`): + Number of additional embeddings. Only useful when you `partially_freeze=True`. + embedding_dim (`int`): + The size of each embedding vector + partially_freeze: (`bool`, *optional*, defaults to `False`): + If `True`, the regular `weight` will be frozen. `additional_weight` is never frozen. + padding_idx (`int`, *optional*): + The padding index (needs to be less than num_embeddings) + + Note: there are a lot of other parameters to initialize a standard `nn.Embedding` such as `padding_idx`, + `max_norm` or `norm_type`. We are not supporting these. + """ + if padding_idx is not None and padding_idx > num_embeddings: + raise ValueError(f"padding_idx must be within num_embeddings. Got {padding_idx} and {num_embeddings}") + super().__init__( + num_embeddings=num_embeddings, + embedding_dim=embedding_dim, + device=device, + dtype=dtype, + padding_idx=padding_idx, + **kwargs, + ) + self.num_embeddings = num_embeddings + self.padding_idx = padding_idx + self.num_additional_embeddings = num_additional_embeddings + self.partially_freeze = partially_freeze + + if partially_freeze: + self.weight.requires_grad_(False) + + if self.num_additional_embeddings > 0: + self.additional_embedding = nn.Embedding( + num_embeddings=self.num_additional_embeddings, + embedding_dim=embedding_dim, + device=device, + dtype=dtype, + ) + + def forward(self, input_ids): + """ + we have 2 embeddings, with different indices - one pretrained self.weight and another + self.additional_embedding.weight that is being trained. + + in order to make a lookup of the input ids, we: + 1. find out the indices of the entries belonging to the 2nd embedding + 2. extract those values while subtracting the size of the first embedding (num_embeddings), since the 2nd + embedding starts from 0 and not num_embeddings + 3. perform the 2nd embedding lookup + 4. now we handle the 1st embedding, we overwrite indices belonging to the 2nd embedding with a padding index + 5. perform the 1st embedding lookup + 6. now we overwrite the values in the 1st embedding lookup with the values of the 2nd embedding lookup + + note: for the 1st embedding lookup we could have looked up only the low indices and not do the padding, but + then we have to create a new tensor and populate it with 2 tensors that are spread out across various indices - + i.e. not a simple concat - I haven't benchmarked the complex case if it's any faster, given that seqlens are + usually relatively short it's probably not faster or if faster not by much - but might be a good idea to + measure. + + """ + if self.num_additional_embeddings == 0: + return F.embedding(input_ids, self.weight) + + # Clone so that we don't modify the original input_ids later on + input_ids = input_ids.clone() + additional_vocab_indices = torch.where(input_ids >= self.num_embeddings) + input_ids_additional_vocab = input_ids[additional_vocab_indices] + additional_embeddings = self.additional_embedding(input_ids_additional_vocab - self.num_embeddings) + + # for successful lookup replace input_ids with 0, the results of these will be discarded anyway + input_ids[additional_vocab_indices] = 0 + full_vector = F.embedding(input_ids, self.weight) + + # overwrite the records with high indices + full_vector[additional_vocab_indices] = additional_embeddings + + return full_vector + + def extra_repr(self) -> str: + return "num_embeddings={}, num_additional_embeddings={}, embedding_dim={}, partially_freeze={}".format( + self.num_embeddings, + self.num_additional_embeddings, + self.embedding_dim, + self.partially_freeze, + ) + + +class IdeficsDecoupledLinear(nn.Linear): + # Derived from https://pytorch.org/docs/stable/_modules/torch/nn/modules/linear.html#Linear + """ + Implements a decoupling of parameters to allow freezing (or not) a subset of the parameters. In practise, the + regular `weight` can be trained or frozen (i.e. `partially_freeze=True`), and if `out_additional_features` > 0, + then it will create `out_additional_features * in_features` additional parameters that are always trained. If + `out_additional_features=0`, then the module defaults back to the regular behavior of `nn.Linear`. + """ + + def __init__( + self, + in_features: int, + out_features: int, + out_additional_features: int = 0, + bias: bool = True, + partially_freeze: bool = True, + device=None, + dtype=None, + ) -> None: + """ + out_additional_features: int. Number of additional trainable dimensions. Only makes sense when + `partially_freeze=True`. partially_freeze: bool. If True, the regular `weight` will be frozen and extra + parameters (if any) will be trainable. If False, default to the regular behavior of nn.Linear. + """ + super().__init__(in_features, out_features, bias, device, dtype) + self.out_additional_features = out_additional_features + self.partially_freeze = partially_freeze + + self.in_features = in_features + self.out_features = out_features + + if partially_freeze: + self.weight.requires_grad_(False) + if bias: + self.bias.requires_grad_(False) + + if out_additional_features > 0: + self.additional_fc = nn.Linear( + in_features=in_features, + out_features=out_additional_features, + bias=bias, + device=device, + dtype=dtype, + ) + + def forward(self, input: torch.Tensor) -> torch.Tensor: + output = F.linear(input, self.weight, self.bias) + + if self.out_additional_features > 0: + additional_features = self.additional_fc(input) + output = torch.cat((output, additional_features), -1) + + return output + + def extra_repr(self) -> str: + """Overwriting `nn.Linear.extra_repr` to include new parameters.""" + return "in_features={}, out_features={}, out_additional_features={}, bias={}, partially_freeze={}".format( + self.in_features, + self.out_features, + self.out_additional_features, + self.bias is not None, + self.partially_freeze, + ) + + +# this was adapted from LlamaRMSNorm +class IdeficsRMSNorm(nn.Module): + def __init__(self, hidden_size, eps=1e-6): + """ + IdeficsRMSNorm is equivalent to T5LayerNorm + """ + super().__init__() + self.weight = nn.Parameter(torch.ones(hidden_size)) + self.variance_epsilon = eps + + def forward(self, hidden_states): + variance = hidden_states.to(torch.float32).pow(2).mean(-1, keepdim=True) + hidden_states = hidden_states * torch.rsqrt(variance + self.variance_epsilon) + + # convert into half-precision if necessary + if self.weight.dtype in [torch.float16, torch.bfloat16]: + hidden_states = hidden_states.to(self.weight.dtype) + + return self.weight * hidden_states + + def extra_repr(self): + return f"{tuple(self.weight.shape)}, eps={self.variance_epsilon}" + + +ALL_LAYERNORM_LAYERS.append(IdeficsRMSNorm) + + +# this was adapted from LlamaRotaryEmbedding +class IdeficsEmbedding(torch.nn.Module): + def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None): + super().__init__() + + self.dim = dim + self.max_position_embeddings = max_position_embeddings + self.base = base + inv_freq = 1.0 / (self.base ** (torch.arange(0, self.dim, 2, dtype=torch.int64).float().to(device) / self.dim)) + self.register_buffer("inv_freq", inv_freq, persistent=False) + + # Build here to make `torch.jit.trace` work. + self._set_cos_sin_cache( + seq_len=max_position_embeddings, device=self.inv_freq.device, dtype=torch.get_default_dtype() + ) + + def _set_cos_sin_cache(self, seq_len, device, dtype): + self.max_seq_len_cached = seq_len + t = torch.arange(self.max_seq_len_cached, device=device, dtype=torch.int64).type_as(self.inv_freq) + + freqs = torch.einsum("i,j->ij", t, self.inv_freq) + # Different from paper, but it uses a different permutation in order to obtain the same calculation + emb = torch.cat((freqs, freqs), dim=-1) + self.register_buffer("cos_cached", emb.cos().to(dtype), persistent=False) + self.register_buffer("sin_cached", emb.sin().to(dtype), persistent=False) + + def forward(self, x, seq_len=None): + # x: [bs, num_attention_heads, seq_len, head_size] + if seq_len > self.max_seq_len_cached: + self._set_cos_sin_cache(seq_len=seq_len, device=x.device, dtype=x.dtype) + + return ( + self.cos_cached[:seq_len].to(dtype=x.dtype), + self.sin_cached[:seq_len].to(dtype=x.dtype), + ) + + +def rotate_half(x): + """Rotates half the hidden dims of the input.""" + x1 = x[..., : x.shape[-1] // 2] + x2 = x[..., x.shape[-1] // 2 :] + return torch.cat((-x2, x1), dim=-1) + + +def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1): + """Applies Rotary Position Embedding to the query and key tensors. + + Args: + q (`torch.Tensor`): The query tensor. + k (`torch.Tensor`): The key tensor. + cos (`torch.Tensor`): The cosine part of the rotary embedding. + sin (`torch.Tensor`): The sine part of the rotary embedding. + position_ids (`torch.Tensor`): + The position indices of the tokens corresponding to the query and key tensors. For example, this can be + used to pass offsetted position ids when working with a KV-cache. + unsqueeze_dim (`int`, *optional*, defaults to 1): + The 'unsqueeze_dim' argument specifies the dimension along which to unsqueeze cos[position_ids] and + sin[position_ids] so that they can be properly broadcasted to the dimensions of q and k. For example, note + that cos[position_ids] and sin[position_ids] have the shape [batch_size, seq_len, head_dim]. Then, if q and + k have the shape [batch_size, heads, seq_len, head_dim], then setting unsqueeze_dim=1 makes + cos[position_ids] and sin[position_ids] broadcastable to the shapes of q and k. Similarly, if q and k have + the shape [batch_size, seq_len, heads, head_dim], then set unsqueeze_dim=2. + Returns: + `tuple(torch.Tensor)` comprising of the query and key tensors rotated using the Rotary Position Embedding. + """ + cos = cos[position_ids].unsqueeze(unsqueeze_dim) + sin = sin[position_ids].unsqueeze(unsqueeze_dim) + q_embed = (q * cos) + (rotate_half(q) * sin) + k_embed = (k * cos) + (rotate_half(k) * sin) + return q_embed, k_embed + + +# this was adapted from LlamaMLP +class IdeficsMLP(nn.Module): + def __init__( + self, + hidden_size: int, + intermediate_size: int, + hidden_act: str, + ): + super().__init__() + self.gate_proj = nn.Linear(hidden_size, intermediate_size, bias=False) + self.down_proj = nn.Linear(intermediate_size, hidden_size, bias=False) + self.up_proj = nn.Linear(hidden_size, intermediate_size, bias=False) + self.act_fn = ACT2FN[hidden_act] + + def forward(self, x): + return self.down_proj(self.act_fn(self.gate_proj(x)) * self.up_proj(x)) + + +# this was adapted from LlamaAttention +class IdeficsAttention(nn.Module): + """Multi-headed attention from 'Attention Is All You Need' paper""" + + def __init__( + self, + hidden_size: int, + num_heads: int, + dropout: float = 0.0, + is_cross_attention: bool = False, + config: PretrainedConfig = None, + qk_layer_norms: bool = False, + layer_idx: int = None, + ): + super().__init__() + self.hidden_size = hidden_size + self.num_heads = num_heads + self.head_dim = hidden_size // num_heads + self.dropout = dropout + self.is_causal = True + + self.layer_idx = layer_idx + if layer_idx is None: + logger.warning_once( + f"Instantiating {self.__class__.__name__} without passing a `layer_idx` is not recommended and will " + "lead to errors during the forward call if caching is used. Please make sure to provide a `layer_idx` " + "when creating this class." + ) + + if (self.head_dim * num_heads) != self.hidden_size: + raise ValueError( + f"hidden_size must be divisible by num_heads (got `hidden_size`: {self.hidden_size}" + f" and `num_heads`: {num_heads})." + ) + + self.is_cross_attention = is_cross_attention + + if not hasattr(nn.functional, "scaled_dot_product_attention"): + raise ValueError("this model requires pytorch 2.0 or higher") + + if self.is_cross_attention: + kv_input_dim = ( + self.hidden_size if not hasattr(config.vision_config, "embed_dim") else config.vision_config.embed_dim + ) + self.q_proj = nn.Linear( + self.hidden_size, + num_heads * self.head_dim, + bias=False, + ) + self.k_proj = nn.Linear(kv_input_dim, num_heads * self.head_dim, bias=False) + self.v_proj = nn.Linear( + kv_input_dim, + num_heads * self.head_dim, + bias=False, + ) + else: + self.q_proj = nn.Linear( + self.hidden_size, + num_heads * self.head_dim, + bias=False, + ) + self.k_proj = nn.Linear( + self.hidden_size, + num_heads * self.head_dim, + bias=False, + ) + self.v_proj = nn.Linear( + self.hidden_size, + num_heads * self.head_dim, + bias=False, + ) + self.o_proj = nn.Linear( + num_heads * self.head_dim, + hidden_size, + bias=False, + ) + self.rotary_emb = IdeficsEmbedding(self.head_dim) + + self.qk_layer_norms = qk_layer_norms + if self.qk_layer_norms: + self.q_layer_norm = IdeficsRMSNorm(self.head_dim, eps=config.rms_norm_eps) + self.k_layer_norm = IdeficsRMSNorm(self.head_dim, eps=config.rms_norm_eps) + + def _shape(self, tensor: torch.Tensor, seq_len: int, bsz: int): + return tensor.view(bsz, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous() + + def forward( + self, + hidden_states: torch.Tensor, + key_value_states: Optional[torch.Tensor] = None, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_value: Optional[Tuple[torch.Tensor]] = None, + output_attentions: bool = False, + use_cache: bool = False, + cache_position: Optional[torch.LongTensor] = None, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]: + # if key_value_states are provided this layer is used as a cross-attention layer + is_cross_attention = self.is_cross_attention or key_value_states is not None + + bsz, q_len, _ = hidden_states.size() + + query_states = self.q_proj(hidden_states).view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2) + if not is_cross_attention: + key_states = self.k_proj(hidden_states).view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2) + value_states = self.v_proj(hidden_states).view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2) + else: + _, kv_len, _ = key_value_states.size() # Note that, in this case, `kv_len` == `kv_seq_len` + key_states = self.k_proj(key_value_states).view(bsz, kv_len, self.num_heads, self.head_dim).transpose(1, 2) + value_states = ( + self.v_proj(key_value_states).view(bsz, kv_len, self.num_heads, self.head_dim).transpose(1, 2) + ) + + kv_seq_len = key_states.shape[-2] + if past_key_value is not None: + kv_seq_len += cache_position[0] + + if not is_cross_attention: + cos, sin = self.rotary_emb(value_states, seq_len=max(kv_seq_len, q_len)) + query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids) + # [bsz, nh, t, hd] + + if past_key_value is not None: + # sin and cos are specific to RoPE models; cache_position needed for the static cache + cache_kwargs = {"cache_position": cache_position} + key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs) + + if self.qk_layer_norms: + query_states = self.q_layer_norm(query_states) + key_states = self.k_layer_norm(key_states) + + causal_mask = attention_mask + if attention_mask is not None: + causal_mask = causal_mask[:, :, :, : key_states.shape[-2]] + + # SDPA with memory-efficient backend is currently (torch==2.1.2) bugged with non-contiguous inputs with custom attn_mask, + # Reference: https://github.com/pytorch/pytorch/issues/112577. + if query_states.device.type == "cuda" and attention_mask is not None: + query_states = query_states.contiguous() + key_states = key_states.contiguous() + value_states = value_states.contiguous() + + # We dispatch to SDPA's Flash Attention or Efficient kernels via this `is_causal` if statement instead of an inline conditional assignment + # in SDPA to support both torch.compile's dynamic shapes and full graph options. An inline conditional prevents dynamic shapes from compiling. + # The q_len > 1 is necessary to match with AttentionMaskConverter.to_causal_4d that does not create a causal mask in case q_len == 1. + is_causal = True if self.is_causal and causal_mask is None and q_len > 1 else False + + attn_output = torch.nn.functional.scaled_dot_product_attention( + query_states, + key_states, + value_states, + attn_mask=causal_mask, + dropout_p=self.dropout if self.training else 0.0, + is_causal=is_causal, + ) + + if attn_output.size() != (bsz, self.num_heads, q_len, self.head_dim): + raise ValueError( + f"`attn_output` should be of size {(bsz, self.num_heads, q_len, self.head_dim)}, but is" + f" {attn_output.size()}" + ) + + attn_output = attn_output.transpose(1, 2) + attn_output = attn_output.reshape(bsz, q_len, self.hidden_size) + + attn_output = self.o_proj(attn_output) + + attn_weights = None + if output_attentions: + logger.warning_once( + "attn_weights are not extracted in scaled_dot_product_attention. The model returns None instead" + ) + + return attn_output, attn_weights, past_key_value + + +# this was adapted from LlamaDecoderLayer +class IdeficsDecoderLayer(nn.Module): + def __init__(self, config: IdeficsConfig, layer_idx: int = None): + super().__init__() + self.hidden_size = config.hidden_size + self.self_attn = IdeficsAttention( + hidden_size=self.hidden_size, + num_heads=config.num_attention_heads, + dropout=config.dropout, + config=config, + layer_idx=layer_idx, + ) + self.mlp = IdeficsMLP( + hidden_size=self.hidden_size, + intermediate_size=config.intermediate_size, + hidden_act=config.hidden_act, + ) + self.input_layernorm = IdeficsRMSNorm(config.hidden_size, eps=config.rms_norm_eps) + self.post_attention_layernorm = IdeficsRMSNorm(config.hidden_size, eps=config.rms_norm_eps) + self.dropout = config.dropout + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_value: Optional[Tuple[torch.Tensor]] = None, + output_attentions: Optional[bool] = False, + use_cache: Optional[bool] = False, + cache_position: Optional[torch.LongTensor] = None, + ) -> Tuple[torch.FloatTensor, Optional[Tuple[torch.FloatTensor, torch.FloatTensor]]]: + """ + Args: + hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)` + attention_mask (`torch.FloatTensor`, *optional*): attention mask of size + `(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding + (see `past_key_values`). + past_key_value (`Tuple(torch.FloatTensor)`, *optional*): cached past key and value projection states + """ + + residual = hidden_states + + hidden_states = self.input_layernorm(hidden_states) + + # Self Attention + hidden_states, self_attn_weights, present_key_value = self.self_attn( + hidden_states=hidden_states, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_value=past_key_value, + output_attentions=output_attentions, + use_cache=use_cache, + cache_position=cache_position, + ) + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + hidden_states = residual + hidden_states + + # Fully Connected + residual = hidden_states + hidden_states = self.post_attention_layernorm(hidden_states) + hidden_states = self.mlp(hidden_states) + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + hidden_states = residual + hidden_states + + outputs = (hidden_states,) + + if output_attentions: + outputs += (self_attn_weights,) + + if use_cache: + outputs += (present_key_value,) + + return outputs + + +class IdeficsGatedCrossAttentionLayer(nn.Module): + def __init__(self, config: IdeficsConfig, layer_idx: int = None): + super().__init__() + self.hidden_size = config.hidden_size + self.cross_attn = IdeficsAttention( + hidden_size=self.hidden_size, + num_heads=config.num_attention_heads, + is_cross_attention=True, + dropout=config.dropout, + config=config, + qk_layer_norms=config.qk_layer_norms, + layer_idx=layer_idx, + ) + self.mlp = IdeficsMLP( + hidden_size=self.hidden_size, + intermediate_size=config.intermediate_size, + hidden_act=config.hidden_act, + ) + self.input_layernorm = IdeficsRMSNorm(config.hidden_size, eps=config.rms_norm_eps) + self.post_attention_layernorm = IdeficsRMSNorm(config.hidden_size, eps=config.rms_norm_eps) + self.config = config.dropout + + self.act_cross_attn = nn.Tanh() + self.act_dense = nn.Tanh() + + if config.alpha_initializer == "zeros": + if config.alpha_type == "vector": + self.alpha_cross_attn = nn.Parameter(torch.zeros(1, 1, self.hidden_size)) + self.alpha_dense = nn.Parameter(torch.zeros(1, 1, self.hidden_size)) + elif config.alpha_type == "float": + self.alpha_cross_attn = nn.Parameter(torch.zeros(1)) + self.alpha_dense = nn.Parameter(torch.zeros(1)) + else: + raise ValueError(f"Unknown value for `alpha_type` ({config.alpha_type})") + + elif config.alpha_initializer == "ones": + if config.alpha_type == "vector": + self.alpha_cross_attn = nn.Parameter(torch.ones(1, 1, self.hidden_size)) + self.alpha_dense = nn.Parameter(torch.ones(1, 1, self.hidden_size)) + elif config.alpha_type == "float": + self.alpha_cross_attn = nn.Parameter(torch.ones(1)) + self.alpha_dense = nn.Parameter(torch.ones(1)) + else: + raise ValueError(f"Unknown value for `alpha_type` ({config.alpha_type})") + + elif config.alpha_initializer in {"normal", "gaussian", "random"}: + if config.alpha_type == "vector": + self.alpha_cross_attn = nn.Parameter( + torch.normal(mean=0.0, std=config.alphas_initializer_range, size=(1, 1, self.hidden_size)) + ) + self.alpha_dense = nn.Parameter( + torch.normal(mean=0.0, std=config.alphas_initializer_range, size=(1, 1, self.hidden_size)) + ) + elif config.alpha_type == "float": + self.alpha_cross_attn = nn.Parameter( + torch.normal(mean=0.0, std=config.alphas_initializer_range, size=(1)) + ) + self.alpha_dense = nn.Parameter(torch.normal(mean=0.0, std=config.alphas_initializer_range, size=(1))) + else: + raise ValueError(f"Unknown value for `alpha_type` ({config.alpha_type})") + + else: + raise NotImplementedError(f"Alpha initialization scheme {config.alpha_initializer} not yet implemented!") + + if not (hasattr(self, "alpha_cross_attn") and hasattr(self, "alpha_dense")): + raise ValueError("Alpha parameters not initialized correctly!") + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + image_hidden_states: Optional[torch.Tensor] = None, + image_attention_mask: Optional[torch.Tensor] = None, + cross_attention_gate: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = False, + use_cache: Optional[bool] = False, + past_key_value: Optional[Tuple[torch.Tensor]] = None, + ) -> Tuple[torch.FloatTensor, Optional[Tuple[torch.FloatTensor, torch.FloatTensor]]]: + """ + Args: + hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)` + attention_mask (`torch.FloatTensor`, *optional*): attention mask of size + `(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values. + image_attention_mask (`torch.FloatTensor`, *optional*): image attention mask of size + `(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values. + cross_attention_gate (`torch.FloatTensor`, *optional*): + gate of size `(batch, seq_len)` used to zero-out cross-attention output for tokens attending no images. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding + (see `past_key_values`). + past_key_value (`Tuple(torch.FloatTensor)`, *optional*): cached past key and value projection states + """ + if image_hidden_states is None: + raise ValueError( + "`image_hidden_states` is required for Idefics cross attention module which are visual features to be" + " conditioned on." + ) + + if cross_attention_gate is None: + raise ValueError( + "`cross_attention_gate` is required for Idefics cross attention module to zero-out the cross-attention hidden_states attending to no images." + ) + + if past_key_value is not None: + raise NotImplementedError("Past key value states are not implemented for Idefics cross attention module.") + + residual = hidden_states + + hidden_states = self.input_layernorm(hidden_states) + + # Self Attention + hidden_states, self_attn_weights, present_key_value = self.cross_attn( + hidden_states=hidden_states, + key_value_states=image_hidden_states, + attention_mask=image_attention_mask, + output_attentions=output_attentions, + ) + hidden_states = nn.functional.dropout(hidden_states, p=self.config, training=self.training) + # Fill in zeros for cross_attention hidden_states of tokens attending to no images + hidden_states = hidden_states.masked_fill((cross_attention_gate == 0)[:, :, None], 0.0) + hidden_states = residual + self.act_cross_attn(self.alpha_cross_attn) * hidden_states + + # Fully Connected + residual = hidden_states + hidden_states = self.post_attention_layernorm(hidden_states) + hidden_states = self.mlp(hidden_states) + hidden_states = nn.functional.dropout(hidden_states, p=self.config, training=self.training) + hidden_states = residual + self.act_dense(self.alpha_dense) * hidden_states + + outputs = (hidden_states,) + + if output_attentions: + outputs += (self_attn_weights,) + + if use_cache: + outputs += (present_key_value,) + + return outputs + + +LLAMA_START_DOCSTRING = r""" + This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the + library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads + etc.) + + This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. + Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage + and behavior. + + Parameters: + config ([`IdeficsConfig`]): + Model configuration class with all the parameters of the model. Initializing with a config file does not + load the weights associated with the model, only the configuration. Check out the + [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + + +@add_start_docstrings( + "The bare LLaMA Model outputting raw hidden-states without any specific head on top.", + LLAMA_START_DOCSTRING, +) +class IdeficsPreTrainedModel(PreTrainedModel): + config_class = IdeficsConfig + base_model_prefix = "model" + supports_gradient_checkpointing = True + _no_split_modules = ["IdeficsDecoderLayer", "IdeficsGatedCrossAttentionLayer"] + _supports_sdpa = True + _supports_cache_class = True + _supports_static_cache = False # IDEFICS cannot compile due to dynamic control flow when checking inputs + + def _init_weights(self, module): + # important: this ported version of Idefics isn't meant for training from scratch - only + # inference and fine-tuning - so the proper init weights code has been removed - the m4 code + # base should be used for training from scratch and it contains the correct code. + std = self.config.initializer_range + if isinstance(module, nn.Linear): + module.weight.data.normal_(mean=0.0, std=std) + if module.bias is not None: + module.bias.data.zero_() + elif isinstance(module, nn.Embedding): + module.weight.data.normal_(mean=0.0, std=std) + if module.padding_idx is not None: + module.weight.data[module.padding_idx].zero_() + + +LLAMA_INPUTS_DOCSTRING = r""" + Args: + input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`): + Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide + it. + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for details. + + [What are input IDs?](../glossary#input-ids) + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for details. + + If `past_key_values` is used, optionally only the last `decoder_input_ids` have to be input (see + `past_key_values`). + + If you want to change padding behavior, you should read [`modeling_opt._prepare_decoder_attention_mask`] + and modify to your needs. See diagram 1 in [the paper](https://arxiv.org/abs/1910.13461) for more + information on the default strategy. + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + position_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0, + config.n_positions - 1]`. [What are position IDs?](../glossary#position-ids) + past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape + `(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of shape + `(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)`. + + Contains pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention + blocks) that can be used (see `past_key_values` input) to speed up sequential decoding. + + If `past_key_values` are used, the user can optionally input only the last `decoder_input_ids` (those that + don't have their past key value states given to this model) of shape `(batch_size, 1)` instead of all + `decoder_input_ids` of shape `(batch_size, sequence_length)`. + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This + is useful if you want more control over how to convert `input_ids` indices into associated vectors than the + model's internal embedding lookup matrix. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + cache_position (`torch.LongTensor` of shape `(sequence_length)`, *optional*): + Indices depicting the position of the input sequence tokens in the sequence. Contrarily to `position_ids`, + this tensor is not affected by padding. It is used to update the cache in the correct position and to infer + the complete sequence length. +""" + + +@add_start_docstrings( + "The bare LLaMA Model outputting raw hidden-states without any specific head on top.", + LLAMA_START_DOCSTRING, +) +class IdeficsModel(IdeficsPreTrainedModel): + """ + Transformer decoder consisting of `config.num_hidden_layers` layers. Each layer is a [`IdeficsDecoderLayer`] + + Args: + config: IdeficsConfig + """ + + def __init__(self, config: IdeficsConfig): + super().__init__(config) + self.config = config + self.padding_idx = config.pad_token_id + self.vocab_size = config.vocab_size + + self.embed_tokens = IdeficsDecoupledEmbedding( + num_embeddings=config.vocab_size, + num_additional_embeddings=config.additional_vocab_size, + embedding_dim=config.hidden_size, + partially_freeze=config.freeze_text_layers, + padding_idx=self.padding_idx, + ) + + self.image_size = config.vision_config.image_size + self.vision_config = config.vision_config + self.vision_model = IdeficsVisionTransformer(config.vision_config) + + # Perceiver Resampler + if config.use_resampler: + perceiver_config = config.perceiver_config + self.perceiver_resampler = IdeficsPerceiverResampler( + config, + config.vision_config.embed_dim, + perceiver_config.resampler_depth, + perceiver_config.resampler_n_heads, + perceiver_config.resampler_head_dim, + perceiver_config.resampler_n_latents, + ) + + self.layers = nn.ModuleList( + [IdeficsDecoderLayer(config, layer_idx=i) for i in range(config.num_hidden_layers)] + ) + + self.cross_layer_interval = config.cross_layer_interval + num_cross_layers = config.num_hidden_layers // self.cross_layer_interval + self.gated_cross_attn_layers = nn.ModuleList( + [IdeficsGatedCrossAttentionLayer(config, layer_idx=i) for i in range(num_cross_layers)] + ) + self.gradient_checkpointing = False + + self.norm = IdeficsRMSNorm(config.hidden_size, eps=config.rms_norm_eps) + + # Initialize weights and apply final processing + self.post_init() + + self.freeze_relevant_params(config) + + def freeze_relevant_params(self, config=None): + if config is None: + config = self.config + + if config.freeze_text_layers: + self.freeze_text_layers(config.freeze_text_module_exceptions) + + if config.freeze_vision_layers: + freeze_model(self.vision_model, module_exceptions=config.freeze_vision_module_exceptions) + + def freeze_text_layers(self, module_exceptions=[]): + for module in [self.layers, self.norm]: + freeze_model(module, module_exceptions=module_exceptions) + + def freeze_vision_layers(self, module_exceptions=[]): + freeze_model(self.vision_model, module_exceptions=module_exceptions) + + def get_input_embeddings(self): + return self.embed_tokens + + def set_input_embeddings(self, value): + self.embed_tokens = value + + @add_start_docstrings_to_model_forward(LLAMA_INPUTS_DOCSTRING) + def forward( + self, + input_ids: torch.LongTensor = None, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_values: Optional[List[torch.FloatTensor]] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + pixel_values: Optional[torch.FloatTensor] = None, + image_encoder_embeddings: Optional[torch.FloatTensor] = None, + perceiver_embeddings: Optional[torch.FloatTensor] = None, + image_attention_mask: Optional[torch.Tensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + interpolate_pos_encoding: Optional[bool] = False, + return_dict: Optional[bool] = None, + cache_position: Optional[torch.LongTensor] = None, + ) -> Union[Tuple, IdeficsBaseModelOutputWithPast]: + device = input_ids.device if input_ids is not None else inputs_embeds.device + + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + use_cache = use_cache if use_cache is not None else self.config.use_cache + + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if (input_ids is None) ^ (inputs_embeds is not None): + raise ValueError("You must specify exactly one of input_ids or inputs_embeds") + + if self.gradient_checkpointing and self.training and use_cache: + logger.warning_once( + "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`." + ) + use_cache = False + + if inputs_embeds is None: + inputs_embeds = self.embed_tokens(input_ids) + + # kept for BC (non `Cache` `past_key_values` inputs) + return_legacy_cache = False + if use_cache and not isinstance(past_key_values, Cache): + return_legacy_cache = True + if past_key_values is None: + past_key_values = DynamicCache() + else: + past_key_values = DynamicCache.from_legacy_cache(past_key_values) + logger.warning_once( + "We detected that you are passing `past_key_values` as a tuple of tuples. This is deprecated and " + "will be removed in v4.47. Please convert your cache or use an appropriate `Cache` class " + "(https://huggingface.co/docs/transformers/kv_cache#legacy-cache-format)" + ) + + batch_size, seq_length, _ = inputs_embeds.shape + past_key_values_length = past_key_values.get_seq_length() if past_key_values is not None else 0 + seq_length_with_past = seq_length + past_key_values_length + + if cache_position is None: + cache_position = torch.arange( + past_key_values_length, past_key_values_length + inputs_embeds.shape[1], device=inputs_embeds.device + ) + + if attention_mask is not None and position_ids is None: + # create position_ids on the fly for batch generation + position_ids = attention_mask.long().cumsum(-1) - 1 + position_ids.masked_fill_(attention_mask == 0, 1) + position_ids = position_ids[:, -seq_length:] + elif position_ids is None: + position_ids = cache_position.unsqueeze(0) + + if sum([x is None for x in [pixel_values, image_encoder_embeddings, perceiver_embeddings]]) != 2: + raise ValueError( + "Exactly 1 of pixel_values, image_encoder_embeddings or perceiver_embeddings has to be not-None." + ) + + elif pixel_values is not None: + pixel_values = pixel_values.to(dtype=self.dtype, device=device) # fp16 compatibility + batch_size, num_images = pixel_values.shape[:2] + pixel_values = pixel_values.contiguous().view(batch_size * num_images, *pixel_values.shape[2:]) + + # Get sequence from the vision encoder + image_hidden_states = self.vision_model( + pixel_values=pixel_values, interpolate_pos_encoding=interpolate_pos_encoding + ).last_hidden_state + + elif image_encoder_embeddings is not None: + batch_size, num_images, image_seq_len, image_hidden_size = image_encoder_embeddings.size() + image_hidden_states = image_encoder_embeddings.to(dtype=self.dtype, device=device) + image_hidden_states = image_hidden_states.view(batch_size * num_images, image_seq_len, image_hidden_size) + + if self.config.use_resampler: + if perceiver_embeddings is None: + perceiver_embeddings = self.perceiver_resampler(image_hidden_states) + image_seq_len, image_hidden_size = perceiver_embeddings.size(1), perceiver_embeddings.size(2) + else: + batch_size, num_images, image_seq_len, image_hidden_size = perceiver_embeddings.size() + image_hidden_states = perceiver_embeddings + elif perceiver_embeddings is None: + image_seq_len, image_hidden_size = image_hidden_states.size(1), image_hidden_states.size(2) + else: + raise ValueError("If `perceiver_embeddings` are passed, use_resampler should be True") + + image_hidden_states = image_hidden_states.view(batch_size, num_images * image_seq_len, image_hidden_size) + # # Hack to use the model in full language modeling mode + # image_attention_mask = torch.zeros(batch_size, seq_length, 1, dtype=torch.long, device=image_hidden_states.device) + # Make image_attention_mask compatible with hidden states + text_seq_len = image_attention_mask.size(1) + image_attention_mask = image_attention_mask.unsqueeze(-1) + image_attention_mask = image_attention_mask.repeat(1, 1, 1, image_seq_len) + image_attention_mask = image_attention_mask.view(batch_size, text_seq_len, num_images * image_seq_len) + + if image_hidden_states is not None: + image_batch_size, image_sequence_length, _ = image_hidden_states.size() + image_hidden_shape = (image_batch_size, image_sequence_length) + if image_attention_mask is None: + image_attention_mask = torch.ones(image_hidden_shape, device=device) + image_attention_mask = self.invert_attention_mask(image_attention_mask) + else: + image_attention_mask = None + + # cross_attention_gate: + # For any tokens attending to no images, the hidden_states comming out of the cross-attention should be zeroed-out. + # `image_attention_mask` has shape [bsz, 1, num_images, hidden_size] with elements equal to either 0.0 or a very negative number. + # If any of the elements are 0.0, then the token is attending to at least one image and the gate value is 1. Otherwise the gate value is 0. + # `cross_attention_gate` has shape [bsz, seq_len] with elements equal to either 0.0 or 1.0. + cross_attention_gate = ((((image_attention_mask == 0.0).any(dim=-1)).to(dtype=self.dtype)).squeeze(dim=1)).to( + device + ) + + # embed positions + if attention_mask is None: + attention_mask = torch.ones( + (batch_size, seq_length_with_past), dtype=torch.bool, device=inputs_embeds.device + ) + + attention_mask = self._update_causal_mask( + attention_mask, inputs_embeds, cache_position, past_key_values, output_attentions + ) + + hidden_states = inputs_embeds + + # decoder layers + all_hidden_states = () if output_hidden_states else None + all_self_attns = () if output_attentions else None + next_decoder_cache = None + + for idx, decoder_layer in enumerate(self.layers): + if output_hidden_states: + all_hidden_states += (hidden_states,) + + def vblock( + main_block, + hidden_states, + attention_mask, + position_ids, + past_key_value, + image_hidden_states, + image_attention_mask, + cross_attention_gate, + output_attentions, + use_cache, + layer_idx, + cross_layer_interval, + gated_cross_attn_layers, + cache_position, + ): + # TODO(ls): Add cross attention values to respective lists + if layer_idx % cross_layer_interval == 0: + xblock = gated_cross_attn_layers[layer_idx // cross_layer_interval] + outputs = xblock( + hidden_states, + attention_mask=attention_mask, + image_hidden_states=image_hidden_states, + image_attention_mask=image_attention_mask, + cross_attention_gate=cross_attention_gate, + output_attentions=output_attentions, + use_cache=use_cache, + past_key_value=None, # not implemented + ) + hidden_states = outputs[0] + + layer_outputs = main_block( + hidden_states, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_value=past_key_value, + output_attentions=output_attentions, + use_cache=use_cache, + cache_position=cache_position, + ) + + return layer_outputs + + if self.gradient_checkpointing and self.training: + past_key_values = None + if use_cache: + logger.warning_once( + "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..." + ) + use_cache = False + + layer_outputs = self._gradient_checkpointing_func( + vblock, + decoder_layer, + hidden_states, + attention_mask, + position_ids, + past_key_values, + image_hidden_states, + image_attention_mask, + cross_attention_gate, + output_attentions, + use_cache, + idx, + self.cross_layer_interval, + self.gated_cross_attn_layers, + cache_position, + ) + else: + layer_outputs = vblock( + decoder_layer, + hidden_states, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_value=past_key_values, + image_hidden_states=image_hidden_states, + image_attention_mask=image_attention_mask, + cross_attention_gate=cross_attention_gate, + output_attentions=output_attentions, + use_cache=use_cache, + layer_idx=idx, + cross_layer_interval=self.cross_layer_interval, + gated_cross_attn_layers=self.gated_cross_attn_layers, + cache_position=cache_position, + ) + + hidden_states = layer_outputs[0] + + if use_cache: + next_decoder_cache = layer_outputs[2 if output_attentions else 1] + + if output_attentions: + all_self_attns += (layer_outputs[1],) + + hidden_states = self.norm(hidden_states) + + # add hidden states from the last decoder layer + if output_hidden_states: + all_hidden_states += (hidden_states,) + + next_cache = next_decoder_cache if use_cache else None + if return_legacy_cache: + next_cache = next_cache.to_legacy_cache() + image_hidden_states = image_hidden_states.view(batch_size, num_images, image_seq_len, image_hidden_size) + if not return_dict: + return tuple( + v + for v in [hidden_states, next_cache, all_hidden_states, all_self_attns, image_hidden_states] + if v is not None + ) + return IdeficsBaseModelOutputWithPast( + last_hidden_state=hidden_states, + past_key_values=next_cache, + hidden_states=all_hidden_states, + attentions=all_self_attns, + image_hidden_states=image_hidden_states, + ) + + # Copied from transformers.models.llama.modeling_llama.LlamaModel._update_causal_mask + def _update_causal_mask( + self, + attention_mask: torch.Tensor, + input_tensor: torch.Tensor, + cache_position: torch.Tensor, + past_key_values: Cache, + output_attentions: bool, + ): + if self.config._attn_implementation == "flash_attention_2": + if attention_mask is not None and (attention_mask == 0.0).any(): + return attention_mask + return None + if self.config._attn_implementation == "flex_attention": + if isinstance(attention_mask, torch.Tensor): + attention_mask = make_flex_block_causal_mask(attention_mask) + if isinstance(attention_mask, BlockMask): + return attention_mask + + # For SDPA, when possible, we will rely on its `is_causal` argument instead of its `attn_mask` argument, in + # order to dispatch on Flash Attention 2. This feature is not compatible with static cache, as SDPA will fail + # to infer the attention mask. + past_seen_tokens = past_key_values.get_seq_length() if past_key_values is not None else 0 + using_static_cache = isinstance(past_key_values, StaticCache) + + # When output attentions is True, sdpa implementation's forward method calls the eager implementation's forward + if self.config._attn_implementation == "sdpa" and not using_static_cache and not output_attentions: + if AttentionMaskConverter._ignore_causal_mask_sdpa( + attention_mask, + inputs_embeds=input_tensor, + past_key_values_length=past_seen_tokens, + is_training=self.training, + ): + return None + + dtype, device = input_tensor.dtype, input_tensor.device + sequence_length = input_tensor.shape[1] + if using_static_cache: + target_length = past_key_values.get_max_cache_shape() + else: + target_length = ( + attention_mask.shape[-1] + if isinstance(attention_mask, torch.Tensor) + else past_seen_tokens + sequence_length + 1 + ) + + # In case the provided `attention` mask is 2D, we generate a causal mask here (4D). + causal_mask = self._prepare_4d_causal_attention_mask_with_cache_position( + attention_mask, + sequence_length=sequence_length, + target_length=target_length, + dtype=dtype, + device=device, + cache_position=cache_position, + batch_size=input_tensor.shape[0], + ) + + if ( + self.config._attn_implementation == "sdpa" + and attention_mask is not None + and attention_mask.device.type in ["cuda", "xpu"] + and not output_attentions + ): + # Attend to all tokens in fully masked rows in the causal_mask, for example the relevant first rows when + # using left padding. This is required by F.scaled_dot_product_attention memory-efficient attention path. + # Details: https://github.com/pytorch/pytorch/issues/110213 + min_dtype = torch.finfo(dtype).min + causal_mask = AttentionMaskConverter._unmask_unattended(causal_mask, min_dtype) + + return causal_mask + + @staticmethod + # Copied from transformers.models.llama.modeling_llama.LlamaModel._prepare_4d_causal_attention_mask_with_cache_position + def _prepare_4d_causal_attention_mask_with_cache_position( + attention_mask: torch.Tensor, + sequence_length: int, + target_length: int, + dtype: torch.dtype, + device: torch.device, + cache_position: torch.Tensor, + batch_size: int, + **kwargs, + ): + """ + Creates a causal 4D mask of shape `(batch_size, 1, query_length, key_value_length)` from a 2D mask of shape + `(batch_size, key_value_length)`, or if the input `attention_mask` is already 4D, do nothing. + + Args: + attention_mask (`torch.Tensor`): + A 2D attention mask of shape `(batch_size, key_value_length)` or a 4D attention mask of shape + `(batch_size, 1, query_length, key_value_length)`. + sequence_length (`int`): + The sequence length being processed. + target_length (`int`): + The target length: when generating with static cache, the mask should be as long as the static cache, + to account for the 0 padding, the part of the cache that is not filled yet. + dtype (`torch.dtype`): + The dtype to use for the 4D attention mask. + device (`torch.device`): + The device to place the 4D attention mask on. + cache_position (`torch.Tensor`): + Indices depicting the position of the input sequence tokens in the sequence. + batch_size (`torch.Tensor`): + Batch size. + """ + if attention_mask is not None and attention_mask.dim() == 4: + # In this case we assume that the mask comes already in inverted form and requires no inversion or slicing. + causal_mask = attention_mask + else: + min_dtype = torch.finfo(dtype).min + causal_mask = torch.full( + (sequence_length, target_length), fill_value=min_dtype, dtype=dtype, device=device + ) + if sequence_length != 1: + causal_mask = torch.triu(causal_mask, diagonal=1) + causal_mask *= torch.arange(target_length, device=device) > cache_position.reshape(-1, 1) + causal_mask = causal_mask[None, None, :, :].expand(batch_size, 1, -1, -1) + if attention_mask is not None: + causal_mask = causal_mask.clone() # copy to contiguous memory for in-place edit + mask_length = attention_mask.shape[-1] + padding_mask = causal_mask[:, :, :, :mask_length] + attention_mask[:, None, None, :].to( + causal_mask.device + ) + padding_mask = padding_mask == 0 + causal_mask[:, :, :, :mask_length] = causal_mask[:, :, :, :mask_length].masked_fill( + padding_mask, min_dtype + ) + + return causal_mask + + +class IdeficsForVisionText2Text(IdeficsPreTrainedModel, GenerationMixin): + _keys_to_ignore_on_load_missing = [r"lm_head.weight"] + _tied_weights_keys = ["model.embed_tokens.weight", "lm_head.weight"] + + def __init__(self, config, vision_model=None): + super().__init__(config) + self.model = IdeficsModel(config) + + self.lm_head = IdeficsDecoupledLinear( + in_features=config.hidden_size, + out_features=config.vocab_size, + out_additional_features=config.additional_vocab_size, + bias=False, + partially_freeze=config.freeze_lm_head, + ) + + # Initialize weights and apply final processing + self.post_init() + + def get_input_embeddings(self): + return self.model.embed_tokens + + def set_input_embeddings(self, value): + self.model.embed_tokens = value + + def get_output_embeddings(self): + return self.lm_head + + def set_output_embeddings(self, new_embeddings): + self.lm_head = new_embeddings + + def set_decoder(self, decoder): + self.model = decoder + + def get_decoder(self): + return self.model + + def tie_weights(self): + """ + Overwrite `transformers.modeling_utils.PreTrainedModel.tie_weights` to handle the case of + IdeficsDecoupledLinear and IdeficsDecoupledEmbedding. + """ + output_embeddings = self.get_output_embeddings() + input_embeddings = self.get_input_embeddings() + + if getattr(self.config, "tie_word_embeddings", True): + output_embeddings.weight = input_embeddings.weight + if input_embeddings.num_additional_embeddings > 0: + assert output_embeddings.out_additional_features == input_embeddings.num_additional_embeddings + output_embeddings.additional_fc.weight = input_embeddings.additional_embedding.weight + + if hasattr(output_embeddings, "out_features") and hasattr(input_embeddings, "num_embeddings"): + output_embeddings.out_features = input_embeddings.num_embeddings + if hasattr(output_embeddings, "out_additional_features") and hasattr( + input_embeddings, "num_additional_embeddings" + ): + output_embeddings.out_additional_features = input_embeddings.num_additional_embeddings + + @add_start_docstrings_to_model_forward(LLAMA_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=IdeficsCausalLMOutputWithPast, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: torch.LongTensor = None, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_values: Optional[List[torch.FloatTensor]] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + pixel_values: Optional[torch.FloatTensor] = None, + image_encoder_embeddings: Optional[torch.FloatTensor] = None, + perceiver_embeddings: Optional[torch.FloatTensor] = None, + image_attention_mask: Optional[torch.Tensor] = None, + labels: Optional[torch.LongTensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + interpolate_pos_encoding: Optional[bool] = False, + return_dict: Optional[bool] = None, + cache_position: Optional[torch.LongTensor] = None, + ) -> Union[Tuple, IdeficsCausalLMOutputWithPast]: + r""" + labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Labels for computing the masked language modeling loss. Indices should either be in `[0, ..., + config.vocab_size]` or -100 (see `input_ids` docstring). Tokens with indices set to `-100` are ignored + (masked), the loss is only computed for the tokens with labels in `[0, ..., config.vocab_size]`. + + Returns: + + Example: + + ```python + >>> from transformers import AutoProcessor, IdeficsForVisionText2Text + + >>> model = IdeficsForVisionText2Text.from_pretrained("HuggingFaceM4/idefics-9b") + >>> processor = AutoProcessor.from_pretrained("HuggingFaceM4/idefics-9b") + + >>> dogs_image_url_1 = "https://huggingface.co/datasets/hf-internal-testing/fixtures_nlvr2/raw/main/image1.jpeg" + >>> dogs_image_url_2 = "https://huggingface.co/datasets/hf-internal-testing/fixtures_nlvr2/raw/main/image2.jpeg" + + >>> prompts = [ + ... [ + ... "User:", + ... dogs_image_url_1, + ... "Describe this image.\nAssistant: An image of two dogs.\n", + ... "User:", + ... dogs_image_url_2, + ... "Describe this image.\nAssistant:", + ... ] + ... ] + >>> inputs = processor(prompts, return_tensors="pt") + >>> generate_ids = model.generate(**inputs, max_new_tokens=6) + >>> processor.batch_decode(generate_ids, skip_special_tokens=True) + ```""" + + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + # decoder outputs consists of (dec_features, layer_state, dec_hidden, dec_attn) + outputs = self.model( + input_ids=input_ids, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_values=past_key_values, + inputs_embeds=inputs_embeds, + pixel_values=pixel_values, + image_encoder_embeddings=image_encoder_embeddings, + perceiver_embeddings=perceiver_embeddings, + image_attention_mask=image_attention_mask, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + interpolate_pos_encoding=interpolate_pos_encoding, + return_dict=return_dict, + cache_position=cache_position, + ) + + hidden_states = outputs[0] + logits = self.lm_head(hidden_states) + + loss = None + if labels is not None: + labels = labels.to(logits.device) + # Shift so that tokens < n predict n + if attention_mask is not None: + # we use the input attention mask to shift the logits and labels, because it is 2D. + # we also crop attn mask in case it is longer, which happens in PrefixTuning with peft + shift_attention_mask = attention_mask[:, -(logits.shape[1] - 1) :].to(logits.device) + shift_logits = logits[..., :-1, :][shift_attention_mask != 0].contiguous() + shift_labels = labels[..., 1:][shift_attention_mask != 0].contiguous() + else: + shift_logits = logits[..., :-1, :].contiguous() + shift_labels = labels[..., 1:].contiguous() + # Flatten the tokens + loss_fct = CrossEntropyLoss() + loss = loss_fct(shift_logits.view(-1, shift_logits.size(-1)), shift_labels.view(-1)) + + if not return_dict: + output = (logits,) + outputs[1:] + return (loss,) + output if loss is not None else output + + return IdeficsCausalLMOutputWithPast( + loss=loss, + logits=logits, + past_key_values=outputs.past_key_values, + hidden_states=outputs.hidden_states, + attentions=outputs.attentions, + image_hidden_states=outputs.image_hidden_states, + ) + + def prepare_inputs_for_generation( + self, + input_ids, + attention_mask=None, + position_ids=None, + inputs_embeds=None, + past_key_values=None, + cache_position=None, + pixel_values=None, + image_hidden_states=None, + image_attention_mask=None, + use_cache=None, + **kwargs, + ): + # Overwritten -- custom processing based on `config.use_resampler` + + images_kwargs = {} + if image_hidden_states is not None: + if self.config.use_resampler: + images_kwargs["perceiver_embeddings"] = image_hidden_states + else: + images_kwargs["image_encoder_embeddings"] = image_hidden_states + else: + images_kwargs["pixel_values"] = pixel_values + images_kwargs["interpolate_pos_encoding"] = kwargs.pop("interpolate_pos_encoding", False) + + model_inputs = super().prepare_inputs_for_generation( + input_ids, + past_key_values=past_key_values, + attention_mask=attention_mask, + inputs_embeds=inputs_embeds, + cache_position=cache_position, + position_ids=position_ids, + use_cache=use_cache, + image_attention_mask=image_attention_mask, + **images_kwargs, + **kwargs, + ) + + if image_attention_mask is not None and inputs_embeds is None: + seq_length = model_inputs["input_ids"].shape[1] + model_inputs["image_attention_mask"] = image_attention_mask[:, -seq_length:] + + return model_inputs + + def _update_model_kwargs_for_generation( + self, + outputs: ModelOutput, + model_kwargs: Dict[str, Any], + is_encoder_decoder: bool = False, + **kwargs, + ) -> Dict[str, Any]: + model_kwargs = super()._update_model_kwargs_for_generation( + outputs, + model_kwargs, + is_encoder_decoder, + **kwargs, + ) + + if "image_attention_mask" in model_kwargs: + image_attention_mask = model_kwargs["image_attention_mask"] + last_mask = image_attention_mask[:, -1, :].unsqueeze(1) + if model_kwargs.get("use_cache", True): + model_kwargs["image_attention_mask"] = last_mask + else: + model_kwargs["image_attention_mask"] = torch.cat([image_attention_mask, last_mask], dim=1) + + # Get the precomputed image_hidden_states + model_kwargs["image_hidden_states"] = outputs.image_hidden_states + return model_kwargs + + @staticmethod + def _reorder_cache(past, beam_idx): + reordered_past = () + for layer_past in past: + reordered_past += (tuple(past_state.index_select(0, beam_idx) for past_state in layer_past),) + return reordered_past + + +__all__ = ["IdeficsForVisionText2Text", "IdeficsModel", "IdeficsPreTrainedModel"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/modeling_tf_idefics.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/modeling_tf_idefics.py new file mode 100644 index 0000000000000000000000000000000000000000..8ca859f8cf36bad7fd5044be14acb9e5fcd253ca --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/modeling_tf_idefics.py @@ -0,0 +1,1814 @@ +# coding=utf-8 +# Copyright 2022 EleutherAI and the HuggingFace Inc. team. All rights reserved. +# +# This code is based on EleutherAI's GPT-NeoX library and the GPT-NeoX +# and OPT implementations in this library. It has been modified from its +# original forms to accommodate minor architectural differences compared +# to GPT-NeoX and OPT used by the Meta AI team that trained the model. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""TF 2.0 Idefics model.""" + +from __future__ import annotations + +from dataclasses import dataclass +from typing import List, Optional, Tuple, Union + +import tensorflow as tf + +from ... import TFPreTrainedModel +from ...activations_tf import get_tf_activation +from ...modeling_tf_outputs import ModelOutput +from ...modeling_tf_utils import ( + TFCausalLanguageModelingLoss, + TFModelInputType, + keras_serializable, + shape_list, + unpack_inputs, +) +from ...tf_utils import invert_attention_mask, scaled_dot_product_attention +from ...utils import ( + add_start_docstrings, + add_start_docstrings_to_model_forward, + logging, + replace_return_docstrings, +) +from .configuration_idefics import IdeficsConfig +from .perceiver_tf import TFIdeficsPerceiverResampler +from .vision_tf import TFIdeficsVisionTransformer + + +logger = logging.get_logger(__name__) + +_CONFIG_FOR_DOC = "IdeficsConfig" + + +@dataclass +class TFIdeficsBaseModelOutputWithPast(ModelOutput): + """ + Base class for Idefics model's outputs that may also contain a past key/values (to speed up sequential decoding). + + Args: + last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`): + Sequence of hidden-states at the output of the last layer of the model. + + If `past_key_values` is used only the last hidden-state of the sequences of shape `(batch_size, 1, + hidden_size)` is output. + past_key_values (`tuple(tuple(tf.Tensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(tf.Tensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape + `(batch_size, num_heads, sequence_length, embed_size_per_head)`) and optionally if + `config.is_encoder_decoder=True` 2 additional tensors of shape `(batch_size, num_heads, + encoder_sequence_length, embed_size_per_head)`. + + Contains pre-computed hidden-states (key and values in the self-attention blocks and optionally if + `config.is_encoder_decoder=True` in the cross-attention blocks) that can be used (see `past_key_values` + input) to speed up sequential decoding. + hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `tf.Tensor` (one for the output of the embeddings, if the model has an embedding layer, + + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. + + Hidden-states of the model at the output of each layer plus the optional initial embedding outputs. + attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. + + Attentions weights after the attention softmax, used to compute the weighted average in the self-attention + heads. + image_hidden_states (`tuple(tf.Tensor)`, *optional*): + Tuple of `tf.Tensor` (one for the output of the image embeddings, `(batch_size, num_images, + sequence_length, hidden_size)`. + + image_hidden_states of the model produced by the vision encoder, and optionally by the perceiver + """ + + last_hidden_state: tf.Tensor = None + past_key_values: Optional[Tuple[Tuple[tf.Tensor]]] = None + hidden_states: Optional[Tuple[tf.Tensor]] = None + attentions: Optional[Tuple[tf.Tensor]] = None + image_hidden_states: Optional[Tuple[tf.Tensor]] = None + + +@dataclass +class TFIdeficsCausalLMOutputWithPast(ModelOutput): + """ + Base class for Idefics causal language model (or autoregressive) outputs. + + Args: + loss (`tf.Tensor` of shape `(1,)`, *optional*, returned when `labels` is provided): + Language modeling loss (for next-token prediction). + logits (`tf.Tensor` of shape `(batch_size, sequence_length, config.vocab_size)`): + Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax). + past_key_values (`tuple(tuple(tf.Tensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(tf.Tensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape + `(batch_size, num_heads, sequence_length, embed_size_per_head)`) + + Contains pre-computed hidden-states (key and values in the self-attention blocks) that can be used (see + `past_key_values` input) to speed up sequential decoding. + hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `tf.Tensor` (one for the output of the embeddings, if the model has an embedding layer, + + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. + + Hidden-states of the model at the output of each layer plus the optional initial embedding outputs. + attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. + + Attentions weights after the attention softmax, used to compute the weighted average in the self-attention + heads. + image_hidden_states (`tuple(tf.Tensor)`, *optional*): + Tuple of `tf.Tensor` (one for the output of the image embeddings, `(batch_size, num_images, + sequence_length, hidden_size)`. + + image_hidden_states of the model produced by the vision encoder, and optionally by the perceiver + """ + + loss: Optional[tf.Tensor] = None + logits: tf.Tensor = None + past_key_values: Optional[List[tf.Tensor]] = None + hidden_states: Optional[Tuple[tf.Tensor]] = None + attentions: Optional[Tuple[tf.Tensor]] = None + image_hidden_states: Optional[Tuple[tf.Tensor]] = None + + +def expand_inputs_for_generation( + input_ids, + expand_size=1, + is_encoder_decoder=False, + attention_mask=None, + encoder_outputs=None, + **model_kwargs, +): + expanded_return_idx = tf.reshape(tf.repeat(tf.range(tf.shape(input_ids)[0]), expand_size), [-1]) + input_ids = tf.gather(input_ids, expanded_return_idx) + model_kwargs["pixel_values"] = model_kwargs.get("pixel_values", None) + model_kwargs["image_encoder_embeddings"] = model_kwargs.get("image_encoder_embeddings", None) + model_kwargs["perceiver_embeddings"] = model_kwargs.get("perceiver_embeddings", None) + model_kwargs["image_attention_mask"] = model_kwargs.get("image_attention_mask", None) + + if "token_type_ids" in model_kwargs: + token_type_ids = model_kwargs["token_type_ids"] + model_kwargs["token_type_ids"] = tf.gather(token_type_ids, expanded_return_idx) + + if attention_mask is not None: + model_kwargs["attention_mask"] = tf.gather(attention_mask, expanded_return_idx) + + if model_kwargs["image_attention_mask"] is not None: + model_kwargs["image_attention_mask"] = tf.gather(model_kwargs["image_attention_mask"], expanded_return_idx) + + if model_kwargs["pixel_values"] is not None: + model_kwargs["pixel_values"] = tf.gather(model_kwargs["pixel_values"], expanded_return_idx) + + elif model_kwargs["image_encoder_embeddings"] is not None: + model_kwargs["image_encoder_embeddings"] = tf.gather( + model_kwargs["image_encoder_embeddings"], expanded_return_idx + ) + + elif model_kwargs["perceiver_embeddings"] is not None: + model_kwargs["perceiver_embeddings"] = tf.gather(model_kwargs["perceiver_embeddings"], expanded_return_idx) + + return input_ids, model_kwargs + + +def update_model_kwargs_for_generation(outputs, model_kwargs): + # must have this key set to at least None + if "past_key_values" in outputs: + model_kwargs["past_key_values"] = outputs.past_key_values + else: + model_kwargs["past_key_values"] = None + + # update token_type_ids with last value + if "token_type_ids" in model_kwargs: + token_type_ids = model_kwargs["token_type_ids"] + model_kwargs["token_type_ids"] = tf.concat([token_type_ids, token_type_ids[:, -1:, ...]], axis=-1) + + # update attention masks + if "attention_mask" in model_kwargs: + attention_mask = model_kwargs["attention_mask"] + model_kwargs["attention_mask"] = tf.concat( + [attention_mask, tf.ones_like(attention_mask[:, -1:, ...])], axis=-1 + ) + if "image_attention_mask" in model_kwargs: + image_attention_mask = model_kwargs["image_attention_mask"] + last_mask = image_attention_mask[:, -1:, ...] + model_kwargs["image_attention_mask"] = last_mask + + # Get the precomputed image_hidden_states + model_kwargs["image_hidden_states"] = outputs.image_hidden_states + + return model_kwargs + + +def prepare_inputs_for_generation(input_ids, past_key_values=None, **kwargs): + token_type_ids = kwargs.get("token_type_ids", None) + # only last token for inputs_ids if past is defined in kwargs + if past_key_values is not None: + input_ids = input_ids[:, -1:] + if token_type_ids is not None: + token_type_ids = token_type_ids[:, -1:] + + attention_mask = kwargs.get("attention_mask", None) + position_ids = kwargs.get("position_ids", None) + + if attention_mask is not None and position_ids is None: + # create position_ids on the fly for batch generation + position_ids = tf.math.cumsum(tf.cast(attention_mask, dtype=tf.int64), axis=-1) - 1 + position_ids = tf.where(attention_mask == 0, 1, position_ids) + if past_key_values is not None: + position_ids = position_ids[:, -1:] + + pixel_values = kwargs.get("pixel_values", None) + image_encoder_embeddings = kwargs.get("image_encoder_embeddings", None) + perceiver_embeddings = kwargs.get("perceiver_embeddings", None) + image_attention_mask = kwargs.get("image_attention_mask", None) + interpolate_pos_encoding = kwargs.get("interpolate_pos_encoding", False) + + return { + "input_ids": input_ids, + "past_key_values": past_key_values, + "use_cache": kwargs.get("use_cache"), + "position_ids": position_ids, + "attention_mask": attention_mask, + "token_type_ids": token_type_ids, + "pixel_values": pixel_values, + "image_encoder_embeddings": image_encoder_embeddings, + "perceiver_embeddings": perceiver_embeddings, + "image_attention_mask": image_attention_mask, + "interpolate_pos_encoding": interpolate_pos_encoding, + } + + +def freeze_model(model, module_exceptions=[]): + mapping = { + "LayerNorm": tf.keras.layers.LayerNormalization, + "Dense": tf.keras.layers.Dense, + "Embedding": tf.keras.layers.Embedding, + } + module_exceptions_mapped = [mapping[m] for m in module_exceptions] + if not hasattr(model, "layers"): + model.trainable = False # It is just a layer + return model + for layer in model.layers: + if module_exceptions and any(isinstance(layer, t) for t in module_exceptions_mapped): + layer.trainable = True # Explicitly setting it to true to avoid any mistakes + else: + layer.trainable = False + return model + + +class TFIdeficsDecoupledEmbedding(tf.keras.layers.Embedding): + """ + Implements a decoupling of parameters to allow freezing (or not) a subset of the embeddings. In practise, the + regular `weight` can be trained or frozen (i.e. `partially_freeze=True`), and if `num_additional_embeddings` > 0, + then it will create `num_additional_embeddings` additional parameters that are always trained. If + `num_additional_embeddings=0`, then the module defaults back to the regular behavior of `tf.keras.layers.Embedding`. + """ + + def __init__( + self, + num_embeddings, + num_additional_embeddings, + embedding_dim, + partially_freeze: Optional[bool] = False, + dtype=None, + **kwargs, + ) -> None: + """ + Args: + num_embeddings (`int`): + Size of the dictionary of embeddings + num_additional_embeddings (`int`): + Number of additional embeddings. Only useful when you `partially_freeze=True`. + embedding_dim (`int`): + The size of each embedding vector + partially_freeze: (`bool`, *optional*, defaults to `False`): + If `True`, the regular `weight` will be frozen. `additional_weight` is never frozen. + + Note: there are a lot of other parameters to initialize a standard `tf.keras.layers.Embedding` such as `mask_zero`, + `input_length` or `embeddings_initializer`. We are not supporting these. + """ + super().__init__( + input_dim=num_embeddings, + output_dim=embedding_dim, + dtype=dtype, + **kwargs, + ) + self.num_embeddings = num_embeddings + self.num_additional_embeddings = num_additional_embeddings + self.partially_freeze = partially_freeze + + if partially_freeze: + self.trainable = False + + if self.num_additional_embeddings > 0: + self.additional_embedding = tf.keras.layers.Embedding( + input_dim=self.num_additional_embeddings, + output_dim=embedding_dim, + dtype=dtype, + name="additional_embedding", + ) + + def call(self, input_ids): + """ + we have 2 embeddings, with different indices - one pretrained self.weight and another + self.additional_embedding.weight that is being trained. + + in order to make a lookup of the input ids, we: + 1. find out the indices of the entries belonging to the 2nd embedding + 2. extract those values while subtracting the size of the first embedding (num_embeddings), since the 2nd + embedding starts from 0 and not num_embeddings + 3. perform the 2nd embedding lookup + 4. now we handle the 1st embedding, we overwrite indices belonging to the 2nd embedding with a padding index + 5. perform the 1st embedding lookup + 6. now we overwrite the values in the 1st embedding lookup with the values of the 2nd embedding lookup + + note: for the 1st embedding lookup we could have looked up only the low indices and not do the padding, but + then we have to create a new tensor and populate it with 2 tensors that are spread out across various indices - + i.e. not a simple concat - I haven't benchmarked the complex case if it's any faster, given that seqlens are + usually relatively short it's probably not faster or if faster not by much - but might be a good idea to + measure. + + """ + if self.num_additional_embeddings == 0: + return super().call(input_ids) + + # Clone so that we don't modify the original input_ids later on + input_ids = tf.identity(input_ids) + additional_vocab_indices = tf.where(input_ids >= self.num_embeddings) + input_ids_additional_vocab = tf.gather_nd(input_ids, additional_vocab_indices) + additional_embeddings = self.additional_embedding(input_ids_additional_vocab - self.num_embeddings) + + # for successful lookup replace input_ids with 0, the results of these will be discarded anyway + input_ids = tf.tensor_scatter_nd_update( + input_ids, + additional_vocab_indices, + # tensor filled with 0, having the same length as additional_vocab_indices + tf.zeros(tf.shape(additional_vocab_indices)[0], dtype=input_ids.dtype), + ) + full_vector = super().call(input_ids) + + # overwrite the records with high indices + full_vector = tf.tensor_scatter_nd_update(full_vector, additional_vocab_indices, additional_embeddings) + + return full_vector + + def extra_repr(self) -> str: + return "num_embeddings={}, num_additional_embeddings={}, embedding_dim={}, partially_freeze={}".format( + self.num_embeddings, + self.num_additional_embeddings, + self.output_dim, + self.partially_freeze, + ) + + +class TFIdeficsDecoupledLinear(tf.keras.layers.Layer): + """ + Implements a decoupling of parameters to allow freezing (or not) a subset of the parameters. In practise, the + regular `weight` can be trained or frozen (i.e. `partially_freeze=True`), and if `out_additional_features` > 0, + then it will create `out_additional_features * in_features` additional parameters that are always trained. If + `out_additional_features=0`, then the module defaults back to the regular behavior of `tf.keras.layers.Dense`. + """ + + def __init__( + self, + in_features: int, + out_features: int, + out_additional_features: int = 0, + bias: bool = True, + partially_freeze: bool = True, + **kwargs, + ) -> None: + """ + out_additional_features: int. Number of additional trainable dimensions. Only makes sense when + `partially_freeze=True`. partially_freeze: bool. If True, the regular `weight` will be frozen and extra + parameters (if any) will be trainable. If False, default to the regular behavior of tf.keras.layers.Dense. + """ + super().__init__(**kwargs) + self.out_additional_features = out_additional_features + self.partially_freeze = partially_freeze + + self.in_features = in_features + self.out_features = out_features + self.use_bias = bias + + if out_additional_features > 0: + self.additional_fc = tf.keras.layers.Dense( + units=out_additional_features, use_bias=bias, name="additional_fc" + ) + + def call(self, inputs: tf.Tensor) -> tf.Tensor: + output = tf.linalg.matmul(a=inputs, b=self.weight, transpose_b=True) + if self.bias is not None: + output = tf.nn.bias_add(output, self.bias) + + if self.out_additional_features > 0: + additional_features = self.additional_fc(inputs) + output = tf.concat([output, additional_features], axis=-1) + + return output + + def get_config(self): + config = super().get_config() + config.update( + { + "in_features": self.in_features, + "out_features": self.out_features, + "out_additional_features": self.out_additional_features, + "bias": self.bias is not None, + "partially_freeze": self.partially_freeze, + } + ) + return config + + def extra_repr(self) -> str: + """Overwriting `nn.Linear.extra_repr` to include new parameters.""" + return "in_features={}, out_features={}, out_additional_features={}, bias={}, partially_freeze={}".format( + self.in_features, + self.out_features, + self.out_additional_features, + self.bias is not None, + self.partially_freeze, + ) + + @classmethod + def from_config(cls, config): + return cls(**config) + + def build(self, input_shape=None): + if self.built: + return + self.built = True + self.weight = self.add_weight( + shape=(self.out_features, self.in_features), trainable=not self.partially_freeze, name="weight" + ) + if self.use_bias: + self.bias = self.add_weight(shape=(self.out_features,), trainable=not self.partially_freeze, name="bias") + else: + self.bias = None + if getattr(self, "additional_fc", None) is not None: + with tf.name_scope(self.additional_fc.name): + self.additional_fc.build(self.in_features) + + +def _make_causal_mask(input_ids_shape, dtype, past_key_values_length=0): + """ + Make causal mask used for bi-directional self-attention, supporting both static and dynamic shapes. + """ + bsz, tgt_len = input_ids_shape + + # Create a matrix where only the lower triangle and diagonal are filled with zeros (causal mask) + mask = tf.fill((tgt_len, tgt_len), tf.dtypes.as_dtype(dtype).min) + mask_cond = tf.range(tgt_len) + mask = tf.where(mask_cond[:, None] >= mask_cond[None, :], 0.0, mask) + + if past_key_values_length > 0: + mask = tf.concat([tf.zeros((tgt_len, past_key_values_length), dtype=dtype), mask], axis=-1) + + if bsz is None: + # When batch size is dynamic, expand and tile + # so we can compile a functional model + mask = tf.expand_dims(mask, 0) + mask = tf.expand_dims(mask, 0) # shape: (1, 1, tgt_len, tgt_len + past_key_values_length) + mask = tf.tile(mask, [bsz, 1, 1, 1]) + else: + # When batch size is static, directly use broadcast_to + mask = tf.broadcast_to(mask[None, None, :, :], (bsz, 1, tgt_len, tgt_len + past_key_values_length)) + + return mask + + +def _expand_mask(mask, dtype, tgt_len=None): + """ + Expands attention_mask from `[bsz, seq_len]` to `[bsz, 1, tgt_seq_len, src_seq_len]`. + """ + bsz, src_len = shape_list(mask) + tgt_len = tgt_len if tgt_len is not None else src_len + + expanded_mask = tf.expand_dims(tf.expand_dims(mask, 1), 1) + expanded_mask = tf.broadcast_to(expanded_mask, [bsz, 1, tgt_len, src_len]) + + inverted_mask = 1.0 - tf.cast(expanded_mask, dtype) + + return tf.where( + tf.cast(inverted_mask, bool), tf.fill(dims=shape_list(inverted_mask), value=tf.float32.min), inverted_mask + ) + + +class TFIdeficsRMSNorm(tf.keras.layers.Layer): + def __init__(self, hidden_size, eps=1e-6, **kwargs): + """ + TFIdeficsRMSNorm is equivalent to T5LayerNorm + """ + super().__init__(**kwargs) + self.hidden_size = hidden_size + self.variance_epsilon = eps + + def build(self, input_shape): + if self.built: + return + self.built = True + self.weight = self.add_weight(name="weight", shape=[self.hidden_size], initializer="ones") + + super().build(input_shape) + + def call(self, hidden_states): + variance = tf.math.reduce_mean(tf.math.square(tf.cast(hidden_states, tf.float32)), axis=-1, keepdims=True) + hidden_states = hidden_states * tf.math.rsqrt(variance + self.variance_epsilon) + + # convert into half-precision if necessary + if self.weight.dtype in [tf.float16, tf.bfloat16]: + hidden_states = tf.cast(hidden_states, self.weight.dtype) + + return self.weight * hidden_states + + +class TFIdeficsEmbedding(tf.keras.layers.Layer): + def __init__(self, dim, max_position_embeddings=2048, base=10000, **kwargs): + super().__init__(**kwargs) + + self.dim = dim + self.max_position_embeddings = max_position_embeddings + self.base = base + self.inv_freq = tf.constant( + 1.0 / (self.base ** (tf.range(start=0, limit=self.dim, delta=2, dtype=tf.float32) / self.dim)) + ) + + def _compute_cos_sin(self, seq_len): + t = tf.range(seq_len, dtype=self.inv_freq.dtype) + freqs = tf.einsum("i, j -> ij", t, self.inv_freq) # Outer multiplication + emb = tf.concat((freqs, freqs), axis=-1) + + return tf.cos(emb), tf.sin(emb) + + def call(self, x, seq_len=None): + # x: [bs, num_attention_heads, seq_len, head_size] + if seq_len is None: + seq_len = shape_list(x)[2] + return self._compute_cos_sin(seq_len=seq_len) + + +def rotate_half(x): + """Rotates half the hidden dims of the input.""" + x1 = x[..., : x.shape[-1] // 2] + x2 = x[..., x.shape[-1] // 2 :] + return tf.concat((-x2, x1), axis=-1) + + +def apply_rotary_pos_emb(q, k, cos, sin, position_ids): + cos = tf.gather(cos, position_ids) # [seq_len, dim] -> [batch_size, 1, seq_len, head_dim] + sin = tf.gather(sin, position_ids) + cos = tf.expand_dims(cos, 1) + sin = tf.expand_dims(sin, 1) + q_embed = (q * cos) + (rotate_half(q) * sin) + k_embed = (k * cos) + (rotate_half(k) * sin) + return q_embed, k_embed + + +class TFIdeficsMLP(tf.keras.layers.Layer): + def __init__( + self, + hidden_size: int, + intermediate_size: int, + hidden_act: str, + **kwargs, + ): + super().__init__(**kwargs) + self.gate_proj = tf.keras.layers.Dense(intermediate_size, use_bias=False, name="gate_proj") + self.down_proj = tf.keras.layers.Dense(hidden_size, use_bias=False, name="down_proj") + self.up_proj = tf.keras.layers.Dense(intermediate_size, use_bias=False, name="up_proj") + self.act_fn = get_tf_activation(hidden_act) + self.intermediate_size = intermediate_size + self.hidden_size = hidden_size + + def call(self, x): + return self.down_proj(self.act_fn(self.gate_proj(x)) * self.up_proj(x)) + + def build(self, input_shape=None): + if self.built: + return + self.built = True + if getattr(self, "gate_proj", None) is not None: + with tf.name_scope(self.gate_proj.name): + self.gate_proj.build(self.hidden_size) + if getattr(self, "down_proj", None) is not None: + with tf.name_scope(self.down_proj.name): + self.down_proj.build(self.intermediate_size) + if getattr(self, "up_proj", None) is not None: + with tf.name_scope(self.up_proj.name): + self.up_proj.build(self.hidden_size) + + +class TFIdeficsAttention(tf.keras.layers.Layer): + """Multi-headed attention from 'Attention Is All You Need' paper""" + + def __init__( + self, + hidden_size: int, + num_heads: int, + dropout: float = 0.0, + is_cross_attention: bool = False, + config: IdeficsConfig = None, + qk_layer_norms: bool = False, + **kwargs, + ): + super().__init__(**kwargs) + self.hidden_size = hidden_size + self.num_heads = num_heads + self.head_dim = hidden_size // num_heads + self.dropout = dropout + self.config = config + self.is_causal = True + + if (self.head_dim * num_heads) != self.hidden_size: + raise ValueError( + f"hidden_size must be divisible by num_heads (got `hidden_size`: {self.hidden_size}" + f" and `num_heads`: {num_heads})." + ) + + self.is_cross_attention = is_cross_attention + + self.q_proj = tf.keras.layers.Dense( + num_heads * self.head_dim, + use_bias=False, + name="q_proj", + ) + self.k_proj = tf.keras.layers.Dense( + num_heads * self.head_dim, + use_bias=False, + name="k_proj", + ) + self.v_proj = tf.keras.layers.Dense( + num_heads * self.head_dim, + use_bias=False, + name="v_proj", + ) + self.o_proj = tf.keras.layers.Dense( + hidden_size, + use_bias=False, + name="o_proj", + ) + self.rotary_emb = TFIdeficsEmbedding(self.head_dim, name="rotary_emb") + + self.qk_layer_norms = qk_layer_norms + if self.qk_layer_norms: + self.q_layer_norm = TFIdeficsRMSNorm(self.head_dim, eps=config.rms_norm_eps, name="q_layer_norm") + self.k_layer_norm = TFIdeficsRMSNorm(self.head_dim, eps=config.rms_norm_eps, name="k_layer_norm") + + def _shape(self, tensor: tf.Tensor, seq_len: int, bsz: int): + return tf.transpose(tf.reshape(tensor, (bsz, seq_len, self.num_heads, self.head_dim)), perm=[0, 2, 1, 3]) + + def call( + self, + hidden_states: tf.Tensor, + key_value_states: Optional[tf.Tensor] = None, + attention_mask: Optional[tf.Tensor] = None, + position_ids: Optional[tf.Tensor] = None, + past_key_value: Optional[Tuple[tf.Tensor]] = None, + output_attentions: bool = False, + use_cache: bool = False, + ) -> Tuple[tf.Tensor, Optional[tf.Tensor], Optional[Tuple[tf.Tensor]]]: + # if key_value_states are provided this layer is used as a cross-attention layer + is_cross_attention = self.is_cross_attention or key_value_states is not None + + bsz, q_len, _ = shape_list(hidden_states) + + query_states = self._shape(self.q_proj(hidden_states), q_len, bsz) + if not is_cross_attention: + key_states = self._shape(self.k_proj(hidden_states), q_len, bsz) + value_states = self._shape(self.v_proj(hidden_states), q_len, bsz) + else: + _, kv_len, _ = shape_list(key_value_states) # Note that, in this case, `kv_len` == `kv_seq_len` + key_states = self._shape(self.k_proj(key_value_states), kv_len, bsz) + value_states = self._shape(self.v_proj(key_value_states), kv_len, bsz) + + kv_seq_len = shape_list(key_states)[-2] + if past_key_value is not None: + kv_seq_len += shape_list(past_key_value[0])[-2] + if not is_cross_attention: + # Below is to allow symbolic tensors compilation + if tf.is_tensor(kv_seq_len): + seq_len = tf.reduce_max(kv_seq_len, q_len) + else: + seq_len = max(kv_seq_len, q_len) + cos, sin = self.rotary_emb(value_states, seq_len) + query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids) + # [bsz, nh, t, hd] + + if past_key_value is not None: + # reuse k, v, self_attention + key_states = tf.concat([past_key_value[0], key_states], axis=2) + value_states = tf.concat([past_key_value[1], value_states], axis=2) + + past_key_value = (key_states, value_states) if use_cache else None + + if self.qk_layer_norms: + query_states = self.q_layer_norm(query_states) + key_states = self.k_layer_norm(key_states) + + tf.debugging.assert_equal( + tf.shape(attention_mask), + [bsz, 1, q_len, kv_seq_len], + message=f"Attention weights should be of size {[bsz, 1, q_len, kv_seq_len]}, but is {tf.shape(attention_mask)}", + ) + + attn_output = scaled_dot_product_attention( + query_states, + key_states, + value_states, + attn_mask=attention_mask, + # The q_len > 1 is necessary to match with AttentionMaskConverter.to_causal_4d that does not create a causal mask in case q_len == 1. + is_causal=self.is_causal and attention_mask is None and q_len > 1, + ) + + tf.debugging.assert_equal( + tf.shape(attn_output), + [bsz, self.num_heads, q_len, self.head_dim], + message=f"Attention weights should be of size {[bsz, self.num_heads, q_len, self.head_dim]}, but is {tf.shape(attn_output)}", + ) + + attn_output = tf.reshape(tf.transpose(attn_output, perm=[0, 2, 1, 3]), (bsz, q_len, self.hidden_size)) + + attn_output = self.o_proj(attn_output) + + attn_weights = None + if output_attentions: + logger.warning_once( + "attn_weights are not extracted in scaled_dot_product_attention. The model returns None instead" + ) + + return attn_output, attn_weights, past_key_value + + def build(self, input_shape=None): + if self.built: + return + self.built = True + if self.is_cross_attention: + kv_input_dim = ( + self.hidden_size + if not hasattr(self.config.vision_config, "embed_dim") + else self.config.vision_config.embed_dim + ) + else: + kv_input_dim = self.hidden_size + if getattr(self, "o_proj", None) is not None: + with tf.name_scope(self.o_proj.name): + self.o_proj.build(self.num_heads * self.head_dim) + if getattr(self, "q_proj", None) is not None: + with tf.name_scope(self.q_proj.name): + self.q_proj.build(self.hidden_size) + if getattr(self, "k_proj", None) is not None: + with tf.name_scope(self.k_proj.name): + self.k_proj.build(kv_input_dim) + if getattr(self, "v_proj", None) is not None: + with tf.name_scope(self.v_proj.name): + self.v_proj.build(kv_input_dim) + if getattr(self, "rotary_emb", None) is not None: + with tf.name_scope(self.rotary_emb.name): + self.rotary_emb.build(None) + + +class TFIdeficsDecoderLayer(tf.keras.layers.Layer): + def __init__(self, config: IdeficsConfig, **kwargs): + super().__init__(**kwargs) + self.hidden_size = config.hidden_size + self.self_attn = TFIdeficsAttention( + hidden_size=self.hidden_size, + num_heads=config.num_attention_heads, + dropout=config.dropout, + config=config, + name="self_attn", + ) + self.mlp = TFIdeficsMLP( + hidden_size=self.hidden_size, + intermediate_size=config.intermediate_size, + hidden_act=config.hidden_act, + name="mlp", + ) + self.input_layernorm = TFIdeficsRMSNorm(config.hidden_size, eps=config.rms_norm_eps, name="input_layernorm") + self.post_attention_layernorm = TFIdeficsRMSNorm( + config.hidden_size, eps=config.rms_norm_eps, name="post_attention_layernorm" + ) + self.dropout = config.dropout + + def call( + self, + hidden_states: tf.Tensor, + attention_mask: Optional[tf.Tensor] = None, + position_ids: Optional[tf.Tensor] = None, + past_key_value: Optional[Tuple[tf.Tensor]] = None, + output_attentions: Optional[bool] = False, + use_cache: Optional[bool] = False, + training=False, + ) -> Tuple[tf.Tensor, Optional[Tuple[tf.Tensor, tf.Tensor]]]: + """ + Args: + hidden_states (`tf.Tensor`): input to the layer of shape `(batch, seq_len, embed_dim)` + attention_mask (`tf.Tensor`, *optional*): attention mask of size + `(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding + (see `past_key_values`). + past_key_value (`Tuple(tf.Tensor)`, *optional*): cached past key and value projection states + """ + + residual = hidden_states + + hidden_states = self.input_layernorm(hidden_states) + + # Self Attention + hidden_states, self_attn_weights, present_key_value = self.self_attn( + hidden_states=hidden_states, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_value=past_key_value, + output_attentions=output_attentions, + use_cache=use_cache, + ) + hidden_states = tf.nn.dropout(hidden_states, rate=self.dropout) + hidden_states = residual + hidden_states + + # Fully Connected + residual = hidden_states + hidden_states = self.post_attention_layernorm(hidden_states) + hidden_states = self.mlp(hidden_states) + hidden_states = tf.nn.dropout(hidden_states, rate=self.dropout) + hidden_states = residual + hidden_states + + outputs = (hidden_states,) + + if output_attentions: + outputs += (self_attn_weights,) + + if use_cache: + outputs += (present_key_value,) + + return outputs + + def build(self, input_shape=None): + if self.built: + return + self.built = True + if getattr(self, "self_attn", None) is not None: + with tf.name_scope(self.self_attn.name): + self.self_attn.build(None) + if getattr(self, "mlp", None) is not None: + with tf.name_scope(self.mlp.name): + self.mlp.build(None) + if getattr(self, "input_layernorm", None) is not None: + with tf.name_scope(self.input_layernorm.name): + self.input_layernorm.build(None) + if getattr(self, "post_attention_layernorm", None) is not None: + with tf.name_scope(self.post_attention_layernorm.name): + self.post_attention_layernorm.build(None) + + +class TFIdeficsGatedCrossAttentionLayer(tf.keras.layers.Layer): + def __init__(self, config: IdeficsConfig, **kwargs): + super().__init__(**kwargs) + self.hidden_size = config.hidden_size + self.cross_attn = TFIdeficsAttention( + hidden_size=self.hidden_size, + num_heads=config.num_attention_heads, + is_cross_attention=True, + dropout=config.dropout, + config=config, + qk_layer_norms=config.qk_layer_norms, + name="cross_attn", + ) + self.mlp = TFIdeficsMLP( + hidden_size=self.hidden_size, + intermediate_size=config.intermediate_size, + hidden_act=config.hidden_act, + name="mlp", + ) + self.input_layernorm = TFIdeficsRMSNorm(config.hidden_size, eps=config.rms_norm_eps, name="input_layernorm") + self.post_attention_layernorm = TFIdeficsRMSNorm( + config.hidden_size, eps=config.rms_norm_eps, name="post_attention_layernorm" + ) + self.config = config.dropout + + self.act_cross_attn = tf.keras.activations.tanh + self.act_dense = tf.keras.activations.tanh + + self.alpha_initializer = config.alpha_initializer + self.alpha_type = config.alpha_type + self.alphas_initializer_range = config.alphas_initializer_range + + def build(self, input_shape): + if self.built: + return + self.built = True + if self.alpha_initializer == "zeros": + if self.alpha_type == "vector": + self.alpha_cross_attn = self.add_weight( + shape=(1, 1, self.hidden_size), initializer="zeros", trainable=True, name="alpha_cross_attn" + ) + self.alpha_dense = self.add_weight( + shape=(1, 1, self.hidden_size), initializer="zeros", trainable=True, name="alpha_dense" + ) + elif self.alpha_type == "float": + self.alpha_cross_attn = self.add_weight( + shape=(1,), initializer="zeros", trainable=True, name="alpha_cross_attn" + ) + self.alpha_dense = self.add_weight(shape=(1,), initializer="zeros", trainable=True, name="alpha_dense") + else: + raise ValueError(f"Unknown value for `alpha_type` ({self.alpha_type})") + + elif self.alpha_initializer == "ones": + if self.alpha_type == "vector": + self.alpha_cross_attn = self.add_weight( + shape=(1, 1, self.hidden_size), initializer="ones", trainable=True, name="alpha_cross_attn" + ) + self.alpha_dense = self.add_weight( + shape=(1, 1, self.hidden_size), initializer="ones", trainable=True, name="alpha_dense" + ) + elif self.alpha_type == "float": + self.alpha_cross_attn = self.add_weight( + shape=(1,), initializer="ones", trainable=True, name="alpha_cross_attn" + ) + self.alpha_dense = self.add_weight(shape=(1,), initializer="ones", trainable=True, name="alpha_dense") + else: + raise ValueError(f"Unknown value for `alpha_type` ({self.alpha_type})") + + elif self.alpha_initializer in {"normal", "gaussian", "random"}: + if self.alpha_type == "vector": + self.alpha_cross_attn = self.add_weight( + shape=(1, 1, self.hidden_size), + initializer=tf.keras.initializers.RandomNormal(mean=0.0, stddev=self.alphas_initializer_range), + trainable=True, + name="alpha_cross_attn", + ) + self.alpha_dense = self.add_weight( + shape=(1, 1, self.hidden_size), + initializer=tf.keras.initializers.RandomNormal(mean=0.0, stddev=self.alphas_initializer_range), + trainable=True, + name="alpha_dense", + ) + elif self.alpha_type == "float": + self.alpha_cross_attn = self.add_weight( + shape=(1,), + initializer=tf.keras.initializers.RandomNormal(mean=0.0, stddev=self.alphas_initializer_range), + trainable=True, + name="alpha_type", + ) + self.alpha_dense = self.add_weight( + shape=(1,), + initializer=tf.keras.initializers.RandomNormal(mean=0.0, stddev=self.alphas_initializer_range), + trainable=True, + name="alpha_dense", + ) + else: + raise ValueError(f"Unknown value for `alpha_type` ({self.alpha_type})") + + else: + raise NotImplementedError(f"Alpha initialization scheme {self.alpha_initializer} not yet implemented!") + + if not (hasattr(self, "alpha_cross_attn") and hasattr(self, "alpha_dense")): + raise ValueError("Alpha parameters not initialized correctly!") + with tf.name_scope(self.cross_attn.name): + self.cross_attn.build(None) + with tf.name_scope(self.mlp.name): + self.mlp.build(None) + with tf.name_scope(self.input_layernorm.name): + self.input_layernorm.build(None) + with tf.name_scope(self.post_attention_layernorm.name): + self.post_attention_layernorm.build(None) + super().build(input_shape) + + def call( + self, + hidden_states: tf.Tensor, + attention_mask: Optional[tf.Tensor] = None, + image_hidden_states: Optional[tf.Tensor] = None, + image_attention_mask: Optional[tf.Tensor] = None, + cross_attention_gate: Optional[tf.Tensor] = None, + output_attentions: Optional[bool] = False, + use_cache: Optional[bool] = False, + past_key_value: Optional[Tuple[tf.Tensor]] = None, + ) -> Tuple[tf.Tensor, Optional[Tuple[tf.Tensor, tf.Tensor]]]: + """ + Args: + hidden_states (`tf.Tensor`): input to the layer of shape `(batch, seq_len, embed_dim)` + attention_mask (`tf.Tensor`, *optional*): attention mask of size + `(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding + (see `past_key_values`). + past_key_value (`Tuple(tf.Tensor)`, *optional*): cached past key and value projection states + no_images (`bool`, *optional*, defaults to `False`): If `True` the vision part is ignored + """ + if image_hidden_states is None: + raise ValueError( + "`image_hidden_states` is required for Idefics cross attention module which are visual features to be" + " conditioned on." + ) + + if cross_attention_gate is None: + raise ValueError( + "`cross_attention_gate` is required for Idefics cross attention module to zero-out the cross-attention hidden_states attending to no images." + ) + + if past_key_value is not None: + raise NotImplementedError("Past key value states are not implemented for Idefics cross attention module.") + + residual = hidden_states + + hidden_states = self.input_layernorm(hidden_states) + + # Self Attention + hidden_states, self_attn_weights, present_key_value = self.cross_attn( + hidden_states=hidden_states, + key_value_states=image_hidden_states, + attention_mask=image_attention_mask, + output_attentions=output_attentions, + ) + hidden_states = tf.nn.dropout(hidden_states, rate=self.config) + mask = tf.cast(cross_attention_gate == 0, dtype=hidden_states.dtype) + # Expand dimensions of mask to match hidden_states + mask = tf.expand_dims(mask, -1) + hidden_states = tf.where( + tf.broadcast_to(mask, tf.shape(hidden_states)) == 1, tf.zeros_like(hidden_states), hidden_states + ) + # when there are no images the model is used in pure language mode + # gate = 0 if no_images else 1 + hidden_states = residual + self.act_cross_attn(self.alpha_cross_attn) * hidden_states + # Fully Connected + residual = hidden_states + hidden_states = self.post_attention_layernorm(hidden_states) + hidden_states = self.mlp(hidden_states) + hidden_states = tf.nn.dropout(hidden_states, rate=self.config) + hidden_states = residual + self.act_dense(self.alpha_dense) * hidden_states + + outputs = (hidden_states,) + + if output_attentions: + outputs += (self_attn_weights,) + + if use_cache: + outputs += (present_key_value,) + + return outputs + + +LLAMA_START_DOCSTRING = r""" + This model inherits from [`TFPreTrainedModel`]. Check the superclass documentation for the generic methods the + library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads + etc.) + + This model is also a TensorFlow [tf.keras.layers.Layer](https://www.tensorflow.org/api_docs/python/tf/keras/layers/Layer) subclass. + Use it as a regular TensorFlow Layer and refer to the TensorFlow documentation for all matter related to general usage + and behavior. + + Parameters: + config ([`IdeficsConfig`]): + Model configuration class with all the parameters of the model. Initializing with a config file does not + load the weights associated with the model, only the configuration. Check out the + [`~TFPreTrainedModel.from_pretrained`] method to load the model weights. +""" + + +@add_start_docstrings( + "The bare LLaMA Model outputting raw hidden-states without any specific head on top.", + LLAMA_START_DOCSTRING, +) +class TFIdeficsPreTrainedModel(TFPreTrainedModel): + config_class = IdeficsConfig + base_model_prefix = "model" + supports_gradient_checkpointing = True + _no_split_modules = ["TFIdeficsDecoderLayer", "TFIdeficsGatedCrossAttentionLayer"] + + +LLAMA_INPUTS_DOCSTRING = r""" + Args: + input_ids (`tf.Tensor` of shape `(batch_size, sequence_length)`): + Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide + it. + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for details. + + [What are input IDs?](../glossary#input-ids) + attention_mask (`tf.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for details. + + If `past_key_values` is used, optionally only the last `decoder_input_ids` have to be input (see + `past_key_values`). + + If you want to change padding behavior, you should read [`modeling_opt._prepare_decoder_attention_mask`] + and modify to your needs. See diagram 1 in [the paper](https://arxiv.org/abs/1910.13461) for more + information on the default strategy. + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + position_ids (`tf.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0, + config.n_positions - 1]`. [What are position IDs?](../glossary#position-ids) + past_key_values (`tuple(tuple(tf.Tensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(tf.Tensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape + `(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of shape + `(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)`. + + Contains pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention + blocks) that can be used (see `past_key_values` input) to speed up sequential decoding. + + If `past_key_values` are used, the user can optionally input only the last `decoder_input_ids` (those that + don't have their past key value states given to this model) of shape `(batch_size, 1)` instead of all + `decoder_input_ids` of shape `(batch_size, sequence_length)`. + inputs_embeds (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This + is useful if you want more control over how to convert `input_ids` indices into associated vectors than the + model's internal embedding lookup matrix. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. +""" + + +@add_start_docstrings( + "The bare LLaMA Model outputting raw hidden-states without any specific head on top.", + LLAMA_START_DOCSTRING, +) +@keras_serializable +class TFIdeficsMainLayer(tf.keras.layers.Layer): + """ + Transformer decoder consisting of `config.num_hidden_layers` layers. Each layer is a [`IdeficsDecoderLayer`] + + Args: + config: IdeficsConfig + """ + + config_class = IdeficsConfig + + def __init__(self, config: IdeficsConfig, add_pooling_year: bool = True, **kwargs): + super().__init__(**kwargs) + self.config = config + self.padding_idx = config.pad_token_id + self.vocab_size = config.vocab_size + + self.embed_tokens = TFIdeficsDecoupledEmbedding( + num_embeddings=config.vocab_size, + num_additional_embeddings=config.additional_vocab_size, + embedding_dim=config.hidden_size, + partially_freeze=config.freeze_text_layers, + name="embed_tokens", + ) + + self.image_size = config.vision_config.image_size + self.vision_config = config.vision_config + self.vision_model = TFIdeficsVisionTransformer(config.vision_config, name="vision_model") + + # Perceiver Resampler + if config.use_resampler: + perceiver_config = config.perceiver_config + self.perceiver_resampler = TFIdeficsPerceiverResampler( + config, + config.vision_config.embed_dim, + perceiver_config.resampler_depth, + perceiver_config.resampler_n_heads, + perceiver_config.resampler_head_dim, + perceiver_config.resampler_n_latents, + name="perceiver_resampler", + ) + + self.decoder_layers = [ + TFIdeficsDecoderLayer(config, name=f"layers.{i}") for i in range(config.num_hidden_layers) + ] + + self.cross_layer_interval = config.cross_layer_interval + num_cross_layers = config.num_hidden_layers // self.cross_layer_interval + self.gated_cross_attn_layers = [ + TFIdeficsGatedCrossAttentionLayer(config, name=f"gated_cross_attn_layers.{i}") + for i in range(num_cross_layers) + ] + self.gradient_checkpointing = False + + self.norm = TFIdeficsRMSNorm(config.hidden_size, eps=config.rms_norm_eps, name="norm") + + self.gradient_checkpointing = False + self.freeze_relevant_params(config) + + def freeze_relevant_params(self, config=None): + if config is None: + config = self.config + + if config.freeze_text_layers: + self.freeze_text_layers(config.freeze_text_module_exceptions) + + if config.freeze_vision_layers: + freeze_model(self.vision_model, module_exceptions=config.freeze_vision_module_exceptions) + + def freeze_text_layers(self, module_exceptions=[]): + for module in [self.decoder_layers, self.norm]: + freeze_model(module, module_exceptions=module_exceptions) + + def freeze_vision_layers(self, module_exceptions=[]): + freeze_model(self.vision_model, module_exceptions=module_exceptions) + + def get_input_embeddings(self): + return self.embed_tokens + + def set_input_embeddings(self, value): + self.embed_tokens = value + + def _prepare_decoder_attention_mask(self, attention_mask, input_shape, inputs_embeds, past_key_values_length): + # create causal mask + # [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len] + combined_attention_mask = None + # if input_shape[-1] > 1: + combined_attention_mask = _make_causal_mask( + input_shape, + inputs_embeds.dtype, + past_key_values_length=past_key_values_length, + ) + + if attention_mask is not None: + # [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len] + expanded_attn_mask = _expand_mask(attention_mask, inputs_embeds.dtype, tgt_len=input_shape[-1]) + combined_attention_mask = ( + expanded_attn_mask if combined_attention_mask is None else expanded_attn_mask + combined_attention_mask + ) + + return combined_attention_mask + + @unpack_inputs + @add_start_docstrings_to_model_forward(LLAMA_INPUTS_DOCSTRING) + def call( + self, + input_ids: TFModelInputType | None = None, + attention_mask: Optional[tf.Tensor] = None, + position_ids: Optional[tf.Tensor] = None, + past_key_values: Optional[List[tf.Tensor]] = None, + inputs_embeds: Optional[tf.Tensor] = None, + pixel_values: Optional[tf.Tensor] = None, + image_encoder_embeddings: Optional[tf.Tensor] = None, + perceiver_embeddings: Optional[tf.Tensor] = None, + image_attention_mask: Optional[tf.Tensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + interpolate_pos_encoding: Optional[bool] = False, + return_dict: Optional[bool] = None, + training: Optional[bool] = None, + ) -> Union[TFIdeficsBaseModelOutputWithPast, Tuple[tf.Tensor]]: + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + use_cache = use_cache if use_cache is not None else self.config.use_cache + + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + # retrieve input_ids and inputs_embeds + if input_ids is not None and inputs_embeds is not None: + raise ValueError("You cannot specify both decoder_input_ids and decoder_inputs_embeds at the same time") + elif input_ids is not None: + batch_size, seq_length = shape_list(input_ids) + elif inputs_embeds is not None: + batch_size, seq_length, _ = shape_list(inputs_embeds) + else: + raise ValueError("You have to specify either decoder_input_ids or decoder_inputs_embeds") + + seq_length_with_past = seq_length + past_key_values_length = 0 + + if past_key_values is not None: + past_key_values_length = shape_list(past_key_values[0][0])[2] + seq_length_with_past = seq_length_with_past + past_key_values_length + + if attention_mask is not None and position_ids is None: + # create position_ids on the fly for batch generation + position_ids = tf.math.cumsum(tf.cast(attention_mask, dtype=tf.int32), axis=-1) - 1 + position_ids = tf.where(attention_mask == 0, 1, position_ids) + elif position_ids is None: + position_ids = tf.range(past_key_values_length, seq_length + past_key_values_length, dtype=tf.int32) + position_ids = tf.expand_dims(position_ids, 0) + + no_images = False + if ( + sum((int(pixel_values is None), int(image_encoder_embeddings is None), int(perceiver_embeddings is None))) + != 2 + ): + raise ValueError( + "Exactly 1 of pixel_values, image_encoder_embeddings or perceiver_embeddings has to be not-None." + ) + + elif pixel_values is not None: + no_images = tf.reduce_sum(tf.cast(pixel_values, dtype=tf.int32)) == 0 + pixel_values = tf.cast(pixel_values, dtype=self.dtype) # fp16 compatibility + # Below hack is because when cross-loading pytorch weights, there is an + # initial forward pass with dummy input and code below is here to handle that + if len(pixel_values.shape) == 4: + batch_size = shape_list(pixel_values)[0] + num_images = shape_list(pixel_values)[0] + # pixel_values = tf.reshape(pixel_values, [batch_size * num_images, *pixel_values.shape[1:]]) + elif len(pixel_values.shape) == 5: + batch_size, num_images = shape_list(pixel_values)[:2] + pixel_values = tf.reshape(pixel_values, [batch_size * num_images, *pixel_values.shape[2:]]) + + # Get sequence from the vision encoder + image_hidden_states = self.vision_model( + pixel_values=pixel_values, interpolate_pos_encoding=interpolate_pos_encoding + ).last_hidden_state + + elif image_encoder_embeddings is not None: + batch_size, num_images, image_seq_len, image_hidden_size = shape_list(image_encoder_embeddings) + image_hidden_states = tf.cast(image_encoder_embeddings, dtype=self.dtype) + image_hidden_states = tf.reshape( + image_hidden_states, (batch_size * num_images, image_seq_len, image_hidden_size) + ) + + if self.config.use_resampler: + if perceiver_embeddings is None: + perceiver_embeddings = self.perceiver_resampler(image_hidden_states) + image_seq_len, image_hidden_size = shape_list(perceiver_embeddings)[1:3] + else: + batch_size, num_images, image_seq_len, image_hidden_size = shape_list(perceiver_embeddings) + image_hidden_states = perceiver_embeddings + elif perceiver_embeddings is None: + image_seq_len, image_hidden_size = shape_list(image_hidden_states)[1:3] + else: + raise ValueError("If `perceiver_embeddings` are passed, use_resampler should be True") + + image_hidden_states = tf.reshape( + image_hidden_states, (batch_size, num_images * image_seq_len, image_hidden_size) + ) + # # Hack to use the model in full language modeling mode + # image_attention_mask = tf.zeros((batch_size, seq_length, 1), dtype=tf.int32) + + # this is to account for the dummy inputs + if pixel_values is not None and len(pixel_values.shape) == 4 and image_attention_mask is None: + image_attention_mask = tf.zeros((batch_size, seq_length, 1), dtype=tf.int32) + + text_seq_len = shape_list(image_attention_mask)[1] + image_attention_mask = tf.expand_dims(image_attention_mask, -1) + image_attention_mask = tf.repeat(image_attention_mask, repeats=image_seq_len) + image_attention_mask = tf.reshape(image_attention_mask, (batch_size, text_seq_len, num_images * image_seq_len)) + + if image_hidden_states is not None: + image_batch_size, image_sequence_length, _ = shape_list(image_hidden_states) + image_hidden_shape = (image_batch_size, image_sequence_length) + if image_attention_mask is None: + image_attention_mask = tf.ones(image_hidden_shape, dtype=tf.int32) + image_attention_mask = invert_attention_mask(image_attention_mask) + else: + image_attention_mask = None + + cross_attention_gate = tf.squeeze( + tf.cast(tf.reduce_any(image_attention_mask == 0, axis=-1), dtype=self.dtype), axis=1 + ) + if inputs_embeds is None: + inputs_embeds = self.embed_tokens(input_ids) + # embed positions + if attention_mask is None: + attention_mask = tf.ones((batch_size, seq_length_with_past), dtype=tf.bool) + attention_mask = self._prepare_decoder_attention_mask( + attention_mask, (batch_size, seq_length), inputs_embeds, past_key_values_length + ) + + hidden_states = inputs_embeds + + if self.gradient_checkpointing and training: + if use_cache: + logger.warning_once( + "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..." + ) + use_cache = False + + # decoder layers + all_hidden_states = () if output_hidden_states else None + all_self_attns = () if output_attentions else None + next_decoder_cache = () if use_cache else None + + for idx, decoder_layer in enumerate(self.decoder_layers): + if output_hidden_states: + all_hidden_states += (hidden_states,) + + past_key_value = past_key_values[idx] if past_key_values is not None else None + + def vblock( + main_block, + hidden_states, + attention_mask, + position_ids, + past_key_value, + image_hidden_states, + image_attention_mask, + cross_attention_gate, + output_attentions, + use_cache, + layer_idx, + cross_layer_interval, + gated_cross_attn_layers, + ): + # TODO(ls): Add cross attention values to respective lists + if layer_idx % cross_layer_interval == 0: + xblock = gated_cross_attn_layers[layer_idx // cross_layer_interval] + outputs = xblock( + hidden_states, + attention_mask=attention_mask, + image_hidden_states=image_hidden_states, + image_attention_mask=image_attention_mask, + cross_attention_gate=cross_attention_gate, + output_attentions=output_attentions, + use_cache=use_cache, + past_key_value=None, # not implemented + ) + hidden_states = outputs[0] + + layer_outputs = main_block( + hidden_states, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_value=past_key_value, + output_attentions=output_attentions, + use_cache=use_cache, + ) + + return layer_outputs + + if self.gradient_checkpointing and training: + past_key_value = None + if use_cache: + logger.warning_once( + "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..." + ) + use_cache = False + + layer_outputs = tf.recompute_grad( + vblock, + decoder_layer, + hidden_states, + attention_mask, + position_ids, + past_key_value, + image_hidden_states, + image_attention_mask, + output_attentions, + use_cache, + no_images, + idx, + self.cross_layer_interval, + self.gated_cross_attn_layers, + ) + else: + layer_outputs = vblock( + decoder_layer, + hidden_states, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_value=past_key_value, + image_hidden_states=image_hidden_states, + image_attention_mask=image_attention_mask, + cross_attention_gate=cross_attention_gate, + output_attentions=output_attentions, + use_cache=use_cache, + layer_idx=idx, + cross_layer_interval=self.cross_layer_interval, + gated_cross_attn_layers=self.gated_cross_attn_layers, + ) + + hidden_states = layer_outputs[0] + + if use_cache: + next_decoder_cache += (layer_outputs[2 if output_attentions else 1],) + + if output_attentions: + all_self_attns += (layer_outputs[1],) + + hidden_states = self.norm(hidden_states) + + # add hidden states from the last decoder layer + if output_hidden_states: + all_hidden_states += (hidden_states,) + + next_cache = next_decoder_cache if use_cache else None + image_hidden_states = tf.reshape( + image_hidden_states, (batch_size, num_images, image_seq_len, image_hidden_size) + ) + if not return_dict: + return tuple( + v + for v in [hidden_states, next_cache, all_hidden_states, all_self_attns, image_hidden_states] + if v is not None + ) + return TFIdeficsBaseModelOutputWithPast( + last_hidden_state=hidden_states, + past_key_values=next_cache, + hidden_states=all_hidden_states, + attentions=all_self_attns, + image_hidden_states=image_hidden_states, + ) + + def build(self, input_shape=None): + if self.built: + return + self.built = True + if getattr(self, "embed_tokens", None) is not None: + with tf.name_scope(self.embed_tokens.name): + self.embed_tokens.build(None) + if getattr(self, "vision_model", None) is not None: + with tf.name_scope(self.vision_model.name): + self.vision_model.build(None) + if getattr(self, "norm", None) is not None: + with tf.name_scope(self.norm.name): + self.norm.build(None) + if getattr(self, "perceiver_resampler", None) is not None: + with tf.name_scope(self.perceiver_resampler.name): + self.perceiver_resampler.build(None) + if getattr(self, "decoder_layers", None) is not None: + for layer in self.decoder_layers: + with tf.name_scope(layer.name): + layer.build(None) + if getattr(self, "gated_cross_attn_layers", None) is not None: + for layer in self.gated_cross_attn_layers: + with tf.name_scope(layer.name): + layer.build(None) + + +class TFIdeficsModel(TFIdeficsPreTrainedModel): + def __init__(self, config: IdeficsConfig, *inputs, **kwargs): + super().__init__(config, *inputs, **kwargs) + + self.model = TFIdeficsMainLayer(config, name="model") + + def call( + self, + input_ids: TFModelInputType | None = None, + attention_mask: Optional[tf.Tensor] = None, + position_ids: Optional[tf.Tensor] = None, + past_key_values: Optional[List[tf.Tensor]] = None, + inputs_embeds: Optional[tf.Tensor] = None, + pixel_values: Optional[tf.Tensor] = None, + image_encoder_embeddings: Optional[tf.Tensor] = None, + perceiver_embeddings: Optional[tf.Tensor] = None, + image_attention_mask: Optional[tf.Tensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + interpolate_pos_encoding: Optional[bool] = False, + return_dict: Optional[bool] = None, + training: Optional[bool] = None, + ) -> Union[TFIdeficsBaseModelOutputWithPast, Tuple[tf.Tensor]]: + outputs = self.model( + input_ids=input_ids, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_values=past_key_values, + inputs_embeds=inputs_embeds, + pixel_values=pixel_values, + image_encoder_embeddings=image_encoder_embeddings, + perceiver_embeddings=perceiver_embeddings, + image_attention_mask=image_attention_mask, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + interpolate_pos_encoding=interpolate_pos_encoding, + return_dict=return_dict, + training=training, + ) + return outputs + + def build(self, input_shape=None): + if self.built: + return + self.built = True + if getattr(self, "model", None) is not None: + with tf.name_scope(self.model.name): + self.model.build(None) + + +class TFIdeficsForVisionText2Text(TFPreTrainedModel, TFCausalLanguageModelingLoss): + _keys_to_ignore_on_load_missing = [r"lm_head.weight"] + _tied_weights_keys = ["model.embed_tokens.weight", "lm_head.weight"] + config_class = IdeficsConfig + + def __init__(self, config, vision_model=None, **kwargs): + super().__init__(config, **kwargs) + self.model = TFIdeficsMainLayer(config, name="model") + self.lm_head = TFIdeficsDecoupledLinear( + config.hidden_size, + config.vocab_size, + config.additional_vocab_size, + bias=False, + partially_freeze=config.freeze_lm_head, + name="lm_head", + ) + + def get_input_embeddings(self): + return self.model.embed_tokens + + def set_input_embeddings(self, value): + self.model.embed_tokens = value + + def get_output_embeddings(self): + return self.lm_head + + def set_output_embeddings(self, new_embeddings): + self.lm_head = new_embeddings + + def set_decoder(self, decoder): + self.model = decoder + + def get_decoder(self): + return self.model + + def tie_weights(self): + """ + Overwrite `transformers.modeling_utils.PreTrainedModel.tie_weights` to handle the case of + IdeficsDecoupledLinear and IdeficsDecoupledEmbedding. + """ + output_embeddings = self.get_output_embeddings() + input_embeddings = self.get_input_embeddings() + + if getattr(self.config, "tie_word_embeddings", True): + output_embeddings.weight = input_embeddings.weight + if input_embeddings.num_additional_embeddings > 0: + assert output_embeddings.out_additional_features == input_embeddings.num_additional_embeddings + output_embeddings.additional_fc.weight = input_embeddings.additional_embedding.weight + + if hasattr(output_embeddings, "out_features") and hasattr(input_embeddings, "num_embeddings"): + output_embeddings.out_features = input_embeddings.num_embeddings + if hasattr(output_embeddings, "out_additional_features") and hasattr( + input_embeddings, "num_additional_embeddings" + ): + output_embeddings.out_additional_features = input_embeddings.num_additional_embeddings + + @unpack_inputs + @add_start_docstrings_to_model_forward(LLAMA_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=TFIdeficsCausalLMOutputWithPast, config_class=_CONFIG_FOR_DOC) + def call( + self, + input_ids: TFModelInputType | None = None, + attention_mask: Optional[tf.Tensor] = None, + position_ids: Optional[tf.Tensor] = None, + past_key_values: Optional[List[tf.Tensor]] = None, + inputs_embeds: Optional[tf.Tensor] = None, + pixel_values: Optional[tf.Tensor] = None, + image_encoder_embeddings: Optional[tf.Tensor] = None, + perceiver_embeddings: Optional[tf.Tensor] = None, + image_attention_mask: Optional[tf.Tensor] = None, + labels: Optional[tf.Tensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + interpolate_pos_encoding: Optional[bool] = False, + return_dict: Optional[bool] = None, + training=False, + ) -> Union[TFIdeficsCausalLMOutputWithPast, Tuple[tf.Tensor]]: + r""" + labels (`tf.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Labels for computing the masked language modeling loss. Indices should either be in `[0, ..., + config.vocab_size]` or -100 (see `input_ids` docstring). Tokens with indices set to `-100` are ignored + (masked), the loss is only computed for the tokens with labels in `[0, ..., config.vocab_size]`. + + Returns: + + Example: + + ```python + >> from transformers import AutoTokenizer, TFIdeficsForVisionText2Text + + >> model = TFIdeficsForVisionText2Text.from_pretrained("HuggingFaceM4/idefics-9b") + >> tokenizer = AutoTokenizer.from_pretrained("HuggingFaceM4/idefics-9b") + + >> prompt = "Hey, are you consciours? Can you talk to me?" + >> inputs = tokenizer(prompt, return_tensors="tf") + + >> # Generate + >> generate_ids = model.generate(inputs.input_ids, max_length=30) + >> tokenizer.batch_decode(generate_ids, skip_special_tokens=True, clean_up_tokenization_spaces=False)[0] + "Hey, are you consciours? Can you talk to me?\nI'm not consciours, but I can talk to you." + ```""" + + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + # decoder outputs consists of (dec_features, layer_state, dec_hidden, dec_attn) + outputs = self.model( + input_ids=input_ids, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_values=past_key_values, + inputs_embeds=inputs_embeds, + pixel_values=pixel_values, + image_encoder_embeddings=image_encoder_embeddings, + perceiver_embeddings=perceiver_embeddings, + image_attention_mask=image_attention_mask, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + interpolate_pos_encoding=interpolate_pos_encoding, + return_dict=return_dict, + training=training, + ) + + hidden_states = outputs[0] + logits = self.lm_head(hidden_states) + + loss = None + if labels is not None: + # Shift so that tokens < n predict n + if attention_mask is not None: + shift_attention_mask = attention_mask[..., 1:] + shift_logits = logits[..., :-1, :][shift_attention_mask != 0] + shift_labels = labels[..., 1:][shift_attention_mask != 0] + else: + shift_logits = logits[..., :-1, :] + shift_labels = labels[..., 1:] + # Flatten the tokens + loss = self.hf_compute_loss( + labels=tf.reshape(shift_labels, [-1]), logits=tf.reshape(shift_logits, [-1, shift_logits.shape[-1]]) + ) + + if not return_dict: + output = (logits,) + outputs[1:] + return (loss,) + output if loss is not None else output + + return TFIdeficsCausalLMOutputWithPast( + loss=loss, + logits=logits, + past_key_values=outputs.past_key_values, + hidden_states=outputs.hidden_states, + attentions=outputs.attentions, + image_hidden_states=outputs.image_hidden_states, + ) + + def prepare_inputs_for_generation(self, input_ids, past=None, **kwargs): + image_hidden_states = kwargs.pop("image_hidden_states", None) + if image_hidden_states is not None: + if self.config.use_resampler: + kwargs["perceiver_embeddings"] = image_hidden_states + else: + kwargs["image_encoder_embeddings"] = image_hidden_states + kwargs["pixel_values"] = None + inputs = prepare_inputs_for_generation(input_ids, past=past, **kwargs) + unwanted_kwargs = ["token_type_ids"] + for kwarg in unwanted_kwargs: + inputs.pop(kwarg, None) + return inputs + + @staticmethod + def _expand_inputs_for_generation( + *args, + **model_kwargs, + ): + return expand_inputs_for_generation(*args, **model_kwargs) + + @staticmethod + def _update_model_kwargs_for_generation(outputs, model_kwargs, is_encoder_decoder): + return update_model_kwargs_for_generation(outputs, model_kwargs) + + @staticmethod + def _reorder_cache(past, beam_idx): + reordered_past = () + for layer_past in past: + reordered_past += (tuple(tf.gather(past_state, beam_idx) for past_state in layer_past),) + return reordered_past + + def build(self, input_shape=None): + if self.built: + return + self.built = True + if getattr(self, "model", None) is not None: + with tf.name_scope(self.model.name): + self.model.build(None) + if getattr(self, "lm_head", None) is not None: + with tf.name_scope(self.lm_head.name): + self.lm_head.build(None) + + +__all__ = ["TFIdeficsForVisionText2Text", "TFIdeficsModel", "TFIdeficsPreTrainedModel"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/perceiver.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/perceiver.py new file mode 100644 index 0000000000000000000000000000000000000000..91e80f85164281dcde8ac921ceea1ed87c9c3bcc --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/perceiver.py @@ -0,0 +1,189 @@ +# This code was adapted from https://github.com/lucidrains/flamingo-pytorch licensed under the MIT License. +# +# MIT License +# +# Copyright (c) 2020 The Google AI Language Team Authors, The HuggingFace Inc. team and github/lonePatient +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in all +# copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. + + +""" + +Generic interface to various configurations of the Perceiver Resampler, that simply takes in a series of (potentially +time-indexed) contextual embeddings, and "resamples" (compresses) them down to a pre-specified number of latents! Note +that the Perceiver in general resamples based solely off the *long-range* context; there's a nice opportunity here to +prime the Perceiver Resampler with say a single layer's worth of language embeddings (the target domain), and use that +to softly "retrieve & compress" what we need --> this would be a novel contribution we should explore. + +References: + - DeepMind's Flamingo: https://www.deepmind.com/blog/tackling-multiple-tasks-with-a-single-visual-language-model + - Code borrowed w/ love from: https://github.com/lucidrains/flamingo-pytorch + +""" + +from typing import Optional, Tuple + +import torch +import torch.nn as nn + +from .configuration_idefics import IdeficsConfig + + +class IdeficsPerceiverResampler(nn.Module): + def __init__( + self, config: IdeficsConfig, embed_dim: int, depth: int, n_heads: int, head_dim: int, n_latents: int + ) -> None: + """ + Instantiates a Perceiver Resampler that operates over a sequence of embeddings (say from a ResNet or ViT or + MAE) of a given dimension, performs `depth` blocks of cross-attention with a fixed `n_latents` inputs, then + returns a Tensor of shape [bsz, n_latents, embed_dim]. :param embed_dim: Dimensionality of embeddings being fed + to the Perceiver Resampler (also dimensionality of latent embeddings *returned* by the Perceiver Resampler. + Could be e.g., VIT embed_dim, ResNet pool dim, and so on. + + Args: + config (`IdeficsConfig`): config object + embed_dim (`int`): The size of each embedding vector + depth (`int`): Depth of the Perceiver Resampler (Transformer w/ cross attention). Should be shallow (< 3). + n_heads (`int`): Number of heads in each Transformer block (for multi-headed self-attention). + head_dim (`int`): Dimensionality of each head projection in the Transformer block. + n_latents (`int`): + Number of latent embeddings to resample ("compress") the input sequence to (usually < 128). + + """ + super().__init__() + self.embed_dim, self.n_heads, self.head_dim, self.n_latents = embed_dim, n_heads, head_dim, n_latents + self.qk_layer_norms = config.perceiver_config.qk_layer_norms_perceiver + + # Create Latents for Perceiver + self.latents = nn.Parameter(torch.randn(self.n_latents, self.embed_dim), requires_grad=True) + + self.intermediate_dim = ( + self.embed_dim * 4 + if not hasattr(config.vision_config, "embed_dim") + else config.vision_config.embed_dim * 4 + ) + # Create Transformer Blocks + self.blocks = nn.ModuleList( + [ + nn.ModuleList( + [ + IdeficsPerceiverAttention(self.embed_dim, self.n_heads, self.head_dim, self.qk_layer_norms), + IdeficsMLP(self.intermediate_dim, config), + ] + ) + for _ in range(depth) + ] + ) + self.layer_norm = nn.LayerNorm(self.embed_dim) + + def forward(self, context: torch.Tensor) -> torch.Tensor: + """Resample arbitrary length context & *compress* down to self.n_latents latent embeddings""" + # einsum.repeat(self.latents, "seq embed -> bsz seq embed", bsz=context.shape[0]) + latents = self.latents.repeat(context.shape[0], 1, 1) + + # Feed through Perceiver Attention blocks... + for attn, ff in self.blocks: + latents = attn(context, latents) + latents + latents = ff(latents) + latents + + return self.layer_norm(latents) + + +class IdeficsPerceiverAttention(nn.Module): + def __init__(self, embed_dim: int, n_heads: int, head_dim: int, qk_layer_norms: bool) -> None: + """Perceiver Cross-Attention Module --> let long-form inputs be `context`, resampled embeddings be `latents`""" + super().__init__() + self.embed_dim, self.n_heads, self.head_dim = embed_dim, n_heads, head_dim + self.qk_layer_norms = qk_layer_norms + # Normalization & Scaling + self.context_layer_norm = nn.LayerNorm(self.embed_dim) + self.latents_layer_norm = nn.LayerNorm(self.embed_dim) + if self.qk_layer_norms: + self.q_layer_norm = nn.LayerNorm(self.head_dim) + self.k_layer_norm = nn.LayerNorm(self.head_dim) + + self.qk_scale = self.head_dim**-0.5 + + # Q, K, V Projection (no bias -- detail from Perceiver/Flamingo Papers). + self.q_proj = nn.Linear(self.embed_dim, self.n_heads * self.head_dim, bias=False) + self.k_proj = nn.Linear(self.embed_dim, self.n_heads * self.head_dim, bias=False) + self.v_proj = nn.Linear(self.embed_dim, self.n_heads * self.head_dim, bias=False) + + self.output_proj = nn.Linear(self.n_heads * self.head_dim, embed_dim, bias=False) + + def forward(self, context: torch.Tensor, latents: torch.Tensor) -> torch.Tensor: + """ + Runs Perceiver Self-Attention, with special (context, latents) appended along the `seq` dimension! + + Args: + context (`torch.Tensor`): + Tensor of shape `[bsz, seq, embed_dim]` representing long-form context to resample. + latents (`torch.Tensor`): + Tensor of shape `[bsz, n_latents, embed_dim]` representing fixed length latents to compress to. + + Returns: + `torch.Tensor`: Tensor of shape `[bsz, n_latents, embed_dim]` representing attention over latents w/ cross + from context. + """ + context = self.context_layer_norm(context) + latents = self.latents_layer_norm(latents) + batch_size, seq_length, embed_dim = context.shape[:3] + + # Query, Key, Value Projections --> Note that in Flamingo, latents are *concatenated* with context prior to attn! + # Note: This results in queries w/ `seq = n_latents`, and keys, values with `seq = len(context) + n_latents` + q = self.q_proj(latents) + k = self.k_proj(torch.cat([context, latents], dim=-2)) + v = self.v_proj(torch.cat([context, latents], dim=-2)) + + # Multiheaded Self-Attention w/ stable softmax (subtract per-row max -- `amax` -- before softmax call) + # =>> `attn` should be a 2D matrix of shape [n_latents x (context + n_latents)] + # einsum.rearrange(x, "bsz seq (heads embed) -> bsz heads seq embed", heads=self.n_heads) + q, k, v = [x.reshape(batch_size, x.shape[1], self.n_heads, self.head_dim).transpose(1, 2) for x in (q, k, v)] + + if self.qk_layer_norms: + q = self.q_layer_norm(q) + k = self.k_layer_norm(k) + + scores = torch.einsum("... i d, ... j d -> ... i j", q * self.qk_scale, k) + stabilized_scores = scores - (scores.amax(dim=-1, keepdim=True).detach()) + attn = stabilized_scores.softmax(dim=-1) + + # Attend & project back to output... + resampled = torch.einsum("... i j, ... j d -> ... i d", attn, v) + # einsum.rearrange(resampled, "bsz heads seq embed -> bsz seq (heads embed)", heads=self.n_heads) + return self.output_proj(resampled.transpose(1, 2).flatten(-2)) + + +class IdeficsMLP(nn.Module): + def __init__(self, intermediate_size, config: IdeficsConfig): + """Simple MLP block with intermediate_size and embedding size""" + super().__init__() + self.embed_dim = config.vision_config.embed_dim + self.ln = nn.LayerNorm(self.embed_dim) + self.fc = nn.Linear(self.embed_dim, intermediate_size, bias=False) + self.act = nn.ReLU() + self.c_proj = nn.Linear(intermediate_size, self.embed_dim, bias=False) + + def forward(self, hidden_states: Optional[Tuple[torch.FloatTensor]]) -> torch.FloatTensor: + hidden_states = self.ln(hidden_states) + hidden_states = self.fc(hidden_states) + hidden_states = self.act(hidden_states) + hidden_states = self.c_proj(hidden_states) + + return hidden_states diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/perceiver_tf.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/perceiver_tf.py new file mode 100644 index 0000000000000000000000000000000000000000..0f1c6153490b39290c795b83332611b424290382 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/perceiver_tf.py @@ -0,0 +1,195 @@ +# This code was adapted from https://github.com/lucidrains/flamingo-pytorch licensed under the MIT License. +# +# MIT License +# +# Copyright (c) 2020 The Google AI Language Team Authors, The HuggingFace Inc. team and github/lonePatient +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in all +# copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. + + +""" + +Generic interface to various configurations of the Perceiver Resampler, that simply takes in a series of (potentially +time-indexed) contextual embeddings, and "resamples" (compresses) them down to a pre-specified number of latents! Note +that the Perceiver in general resamples based solely off the *long-range* context; there's a nice opportunity here to +prime the Perceiver Resampler with say a single layer's worth of language embeddings (the target domain), and use that +to softly "retrieve & compress" what we need --> this would be a novel contribution we should explore. + +References: + - DeepMind's Flamingo: https://www.deepmind.com/blog/tackling-multiple-tasks-with-a-single-visual-language-model + - Code borrowed w/ love from: https://github.com/lucidrains/flamingo-pytorch + +""" + +from typing import Optional, Tuple + +import tensorflow as tf + +from ...modeling_tf_utils import shape_list +from .configuration_idefics import IdeficsConfig + + +class TFIdeficsPerceiverResampler(tf.keras.layers.Layer): + def __init__( + self, config: IdeficsConfig, embed_dim: int, depth: int, n_heads: int, head_dim: int, n_latents: int, **kwargs + ) -> None: + """ + Instantiates a Perceiver Resampler that operates over a sequence of embeddings (say from a ResNet or ViT or + MAE) of a given dimension, performs `depth` blocks of cross-attention with a fixed `n_latents` inputs, then + returns a Tensor of shape [bsz, n_latents, embed_dim]. :param embed_dim: Dimensionality of embeddings being fed + to the Perceiver Resampler (also dimensionality of latent embeddings *returned* by the Perceiver Resampler. + Could be e.g., VIT embed_dim, ResNet pool dim, and so on. + + Args: + config (`IdeficsConfig`): config object + embed_dim (`int`): The size of each embedding vector + depth (`int`): Depth of the Perceiver Resampler (Transformer w/ cross attention). Should be shallow (< 3). + n_heads (`int`): Number of heads in each Transformer block (for multi-headed self-attention). + head_dim (`int`): Dimensionality of each head projection in the Transformer block. + n_latents (`int`): + Number of latent embeddings to resample ("compress") the input sequence to (usually < 128). + + """ + super().__init__(**kwargs) + self.embed_dim, self.n_heads, self.head_dim, self.n_latents = embed_dim, n_heads, head_dim, n_latents + self.qk_layer_norms = config.perceiver_config.qk_layer_norms_perceiver + + self.intermediate_dim = ( + self.embed_dim * 4 + if not hasattr(config.vision_config, "embed_dim") + else config.vision_config.embed_dim * 4 + ) + # Create Transformer Blocks + self.blocks = [] + for i in range(depth): + self.blocks.append( + [ + TFIdeficsPerceiverAttention( + self.embed_dim, self.n_heads, self.head_dim, self.qk_layer_norms, name=f"blocks.{i}.0" + ), + TFIdeficsMLP(self.intermediate_dim, config, name=f"blocks.{i}.1"), + ] + ) + + self.layer_norm = tf.keras.layers.LayerNormalization(epsilon=1e-5, name="layer_norm") + + def build(self, input_shape): + # Create Latents for Perceiver + self.latents = self.add_weight( + shape=(self.n_latents, self.embed_dim), initializer="random_normal", trainable=True, name="latents" + ) + super().build(input_shape) + + def call(self, context: tf.Tensor) -> tf.Tensor: + """Resample arbitrary length context & *compress* down to self.n_latents latent embeddings""" + # tf.repeat(self.latents, "seq embed -> bsz seq embed", bsz=context.shape[0]) + latents = tf.expand_dims(self.latents, axis=0) + latents = tf.tile(latents, [tf.shape(context)[0], 1, 1]) + # Feed through Perceiver Attention blocks... + for attn, ff in self.blocks: + latents = attn(context, latents) + latents + latents = ff(latents) + latents + return self.layer_norm(latents) + + +class TFIdeficsPerceiverAttention(tf.keras.layers.Layer): + def __init__(self, embed_dim: int, n_heads: int, head_dim: int, qk_layer_norms: bool, **kwargs) -> None: + """Perceiver Cross-Attention Module --> let long-form inputs be `context`, resampled embeddings be `latents`""" + super().__init__(**kwargs) + self.embed_dim, self.n_heads, self.head_dim = embed_dim, n_heads, head_dim + self.qk_layer_norms = qk_layer_norms + # Normalization & Scaling + self.context_layer_norm = tf.keras.layers.LayerNormalization(epsilon=1e-5, name="context_layer_norm") + self.latents_layer_norm = tf.keras.layers.LayerNormalization(epsilon=1e-5, name="latents_layer_norm") + if self.qk_layer_norms: + self.q_layer_norm = tf.keras.layers.LayerNormalization(epsilon=1e-5, name="q_layer_norm") + self.k_layer_norm = tf.keras.layers.LayerNormalization(epsilon=1e-5, name="k_layer_norm") + + self.qk_scale = self.head_dim**-0.5 + + # Q, K, V Projection (no bias -- detail from Perceiver/Flamingo Papers). + self.q_proj = tf.keras.layers.Dense(self.n_heads * self.head_dim, use_bias=False, name="q_proj") + self.k_proj = tf.keras.layers.Dense(self.n_heads * self.head_dim, use_bias=False, name="k_proj") + self.v_proj = tf.keras.layers.Dense(self.n_heads * self.head_dim, use_bias=False, name="v_proj") + + self.output_proj = tf.keras.layers.Dense(embed_dim, use_bias=False, name="output_proj") + + def call(self, context: tf.Tensor, latents: tf.Tensor) -> tf.Tensor: + """ + Runs Perceiver Self-Attention, with special (context, latents) appended along the `seq` dimension! + + Args: + context (`tf.Tensor`): + Tensor of shape `[bsz, seq, embed_dim]` representing long-form context to resample. + latents (`tf.Tensor`): + Tensor of shape `[bsz, n_latents, embed_dim]` representing fixed length latents to compress to. + + Returns: + `tf.Tensor`: Tensor of shape `[bsz, n_latents, embed_dim]` representing attention over latents w/ cross + from context. + """ + context = self.context_layer_norm(context) + latents = self.latents_layer_norm(latents) + batch_size, seq_length, embed_dim = shape_list(context) + + # Query, Key, Value Projections --> Note that in Flamingo, latents are *concatenated* with context prior to attn! + # Note: This results in queries w/ `seq = n_latents`, and keys, values with `seq = len(context) + n_latents` + q = self.q_proj(latents) + k = self.k_proj(tf.concat([context, latents], axis=-2)) + v = self.v_proj(tf.concat([context, latents], axis=-2)) + + # Multiheaded Self-Attention w/ stable softmax (subtract per-row max -- `amax` -- before softmax call) + # =>> `attn` should be a 2D matrix of shape [n_latents x (context + n_latents)] + q, k, v = [ + tf.transpose(tf.reshape(x, (batch_size, x.shape[1], self.n_heads, self.head_dim)), perm=[0, 2, 1, 3]) + for x in (q, k, v) + ] + + if self.qk_layer_norms: + q = self.q_layer_norm(q) + k = self.k_layer_norm(k) + + scores = tf.einsum("... i d, ... j d -> ... i j", q * self.qk_scale, k) + stabilized_scores = scores - tf.reduce_max(scores, axis=-1, keepdims=True) + attn = tf.nn.softmax(stabilized_scores, axis=-1) + + # Attend & project back to output... + resampled = tf.einsum("... i j, ... j d -> ... i d", attn, v) + return self.output_proj( + tf.reshape(tf.transpose(resampled, perm=[0, 2, 1, 3]), (batch_size, -1, self.n_heads * self.head_dim)) + ) + + +class TFIdeficsMLP(tf.keras.layers.Layer): + def __init__(self, intermediate_size, config: IdeficsConfig, **kwargs): + """Simple MLP block with intermediate_size and embedding size""" + super().__init__(**kwargs) + self.embed_dim = config.vision_config.embed_dim + self.ln = tf.keras.layers.LayerNormalization(epsilon=1e-5, name="ln") + self.fc = tf.keras.layers.Dense(intermediate_size, use_bias=False, name="fc") + self.act = tf.keras.layers.ReLU(name="act") + self.c_proj = tf.keras.layers.Dense(self.embed_dim, use_bias=False, name="c_proj") + + def call(self, hidden_states: Optional[Tuple[tf.Tensor]]) -> tf.Tensor: + hidden_states = self.ln(hidden_states) + hidden_states = self.fc(hidden_states) + hidden_states = self.act(hidden_states) + hidden_states = self.c_proj(hidden_states) + + return hidden_states diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/processing_idefics.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/processing_idefics.py new file mode 100644 index 0000000000000000000000000000000000000000..3b0e92aac91e45df42d68c8abb7ccc65f16d97f9 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/processing_idefics.py @@ -0,0 +1,548 @@ +# coding=utf-8 +# Copyright 2022 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Processor class for IDEFICS. +""" + +from typing import Callable, Dict, List, Optional, Union +from urllib.parse import urlparse + +from ...feature_extraction_utils import BatchFeature +from ...image_utils import ImageInput +from ...processing_utils import ( + ImagesKwargs, + ProcessingKwargs, + ProcessorMixin, + TextKwargs, + Unpack, + _validate_images_text_input_order, +) +from ...tokenization_utils_base import PreTokenizedInput, TextInput +from ...utils import is_tf_available, is_torch_available +from ...utils.deprecation import deprecate_kwarg + + +if is_torch_available(): + import torch + +if is_tf_available(): + import tensorflow as tf + +IMAGE_TOKEN = "" + + +class IdeficsImagesKwargs(ImagesKwargs, total=False): + transform: Optional[Callable] + image_size: Optional[Dict[str, int]] + image_mean: Optional[Union[float, List[float]]] + image_std: Optional[Union[float, List[float]]] + + +class IdeficsTextKwargs(TextKwargs, total=False): + add_eos_token: Optional[bool] + add_end_of_utterance_token: Optional[bool] + + +class IdeficsProcessorKwargs(ProcessingKwargs, total=False): + text_kwargs: IdeficsTextKwargs + images_kwargs: IdeficsImagesKwargs + _defaults = { + "text_kwargs": { + "add_special_tokens": False, + "padding": "longest", + "add_eos_token": False, + }, + "images_kwargs": {}, + "common_kwargs": {"return_tensors": "pt"}, + } + + +# copied from m4.training.packing +def incremental_to_binary_attention_mask(incremental_mask, return_tensors, num_classes=-1): + # Set elements >= num_classes to -1 + if num_classes != -1: + if return_tensors == "pt": + incremental_mask[incremental_mask >= num_classes] = -1 + elif return_tensors == "tf": + incremental_mask = tf.where(incremental_mask >= num_classes, -1, incremental_mask) + + # Create mask for negative values + if return_tensors == "pt": + negatives = incremental_mask == -1 + incremental_mask[negatives] = 0 + attn_mask = torch.nn.functional.one_hot(incremental_mask, num_classes=num_classes) + attn_mask[negatives, :] = 0 + elif return_tensors == "tf": + negatives = tf.equal(incremental_mask, -1) + incremental_mask = tf.where(negatives, 0, incremental_mask) + attn_mask = tf.one_hot(incremental_mask, depth=num_classes) + # Reshape 'negatives' to add an extra dimension, making it [batch_size, seq_length, 1] + negatives_expanded = tf.expand_dims(negatives, -1) + attn_mask = tf.where(negatives_expanded, tf.zeros_like(attn_mask), attn_mask) + + return attn_mask + + +# copied from m4.training.packing +def image_attention_mask_for_packed_input_ids(input_ids, tokenizer, return_tensors): + if return_tensors == "pt": + return image_attention_mask_for_packed_input_ids_pt(input_ids, tokenizer) + elif return_tensors == "tf": + return image_attention_mask_for_packed_input_ids_tf(input_ids, tokenizer) + + +def image_attention_mask_for_packed_input_ids_pt(input_ids, tokenizer): + image_attention_mask = torch.full_like(input_ids, fill_value=-1) + next_image_attention_mask = torch.full_like(input_ids, fill_value=-1) + image_token_id = tokenizer.convert_tokens_to_ids(IMAGE_TOKEN) + eod_token_id = tokenizer.eos_token_id + for batch_idx in range(input_ids.size(0)): + count = -1 + seen_eod = False + for idx, token_id in enumerate(input_ids[batch_idx]): + if token_id == image_token_id: + count += 1 + image_attention_mask[batch_idx][idx] = count + seen_eod = False + else: + image_attention_mask[batch_idx][idx] = count + + if seen_eod: + image_attention_mask[batch_idx][idx] = -1 + + if token_id == eod_token_id: + seen_eod = True + + for batch_idx in range(input_ids.size(0)): + count = -1 + seen_eod = False + for idx in range(input_ids[batch_idx].size(0) - 1, -1, -1): + token_id = input_ids[batch_idx][idx] + if token_id == image_token_id: + count += 1 + next_image_attention_mask[batch_idx][idx] = count + seen_eod = False + else: + next_image_attention_mask[batch_idx][idx] = count + + if token_id == eod_token_id: + seen_eod = True + + if seen_eod: + next_image_attention_mask[batch_idx][idx] = -1 + + non_negative_indices = next_image_attention_mask[batch_idx] != -1 + next_image_attention_mask[batch_idx][non_negative_indices] -= count + next_image_attention_mask[batch_idx][non_negative_indices] *= -1 + + return image_attention_mask, next_image_attention_mask + + +def image_attention_mask_for_packed_input_ids_tf(input_ids, tokenizer): + image_token_id = tokenizer.convert_tokens_to_ids(IMAGE_TOKEN) + eod_token_id = tokenizer.eos_token_id + batch_size = tf.shape(input_ids)[0] + image_attention_mask = tf.fill(tf.shape(input_ids), -1) + next_image_attention_mask = tf.fill(tf.shape(input_ids), -1) + + for batch_idx in range(batch_size): + count = -1 + seen_eod = False + seq_length = tf.shape(input_ids)[1] + + for idx in range(seq_length - 1, -1, -1): + token_id = input_ids[batch_idx, idx].numpy() + if token_id == image_token_id: + count += 1 + indices = [[batch_idx, idx]] + updates = [count] + image_attention_mask = tf.tensor_scatter_nd_update(image_attention_mask, indices, updates) + next_image_attention_mask = tf.tensor_scatter_nd_update(next_image_attention_mask, indices, updates) + elif token_id == eod_token_id and not seen_eod: + seen_eod = True + count = 0 + indices = [[batch_idx, idx]] + updates = [count] + next_image_attention_mask = tf.tensor_scatter_nd_update(next_image_attention_mask, indices, updates) + if seen_eod and token_id != eod_token_id: + indices = [[batch_idx, idx]] + updates = [-1] + next_image_attention_mask = tf.tensor_scatter_nd_update(next_image_attention_mask, indices, updates) + return image_attention_mask, next_image_attention_mask + + +def is_url(string): + """Checks if the passed string contains a valid url and nothing else. e.g. if space is included it's immediately + invalidated the url""" + if " " in string: + return False + result = urlparse(string) + return all([result.scheme, result.netloc]) + + +class IdeficsProcessor(ProcessorMixin): + r""" + Constructs a IDEFICS processor which wraps a LLama tokenizer and IDEFICS image processor into a single processor. + + [`IdeficsProcessor`] offers all the functionalities of [`IdeficsImageProcessor`] and [`LlamaTokenizerFast`]. See + the docstring of [`~IdeficsProcessor.__call__`] and [`~IdeficsProcessor.decode`] for more information. + + Args: + image_processor (`IdeficsImageProcessor`): + An instance of [`IdeficsImageProcessor`]. The image processor is a required input. + tokenizer (`LlamaTokenizerFast`): + An instance of [`LlamaTokenizerFast`]. The tokenizer is a required input. + image_size (`int`, *optional*, defaults to 224): + Image size (assuming a square image) + add_end_of_utterance_token (`str`, *optional*): + The string representation of token representing end of utterance + """ + + attributes = ["image_processor", "tokenizer"] + valid_kwargs = ["image_size", "add_end_of_utterance_token"] + image_processor_class = "IdeficsImageProcessor" + tokenizer_class = "LlamaTokenizerFast" + + def __init__(self, image_processor, tokenizer=None, image_size=224, add_end_of_utterance_token=None, **kwargs): + if image_processor is None: + raise ValueError("You need to specify an `image_processor`.") + if tokenizer is None: + raise ValueError("You need to specify a `tokenizer`.") + + super().__init__(image_processor, tokenizer) + self.current_processor = self.image_processor + self.image_token_id = ( + tokenizer.image_token_id + if hasattr(tokenizer, "image_token") + else tokenizer.convert_tokens_to_ids(IMAGE_TOKEN) + ) + + self.default_image_dims = ( + self.image_processor.image_num_channels, + self.image_processor.image_size, + self.image_processor.image_size, + ) + + self.tokenizer_was_trained_with_end_of_utterance_token = ( + True + if "" in self.tokenizer.special_tokens_map.get("additional_special_tokens", []) + else False + ) + + @deprecate_kwarg(old_name="prompts", version="5.0.0", new_name="text", raise_if_both_names=True) + def __call__( + self, + images: Union[ImageInput, List[ImageInput], str, List[str], List[List[str]]] = None, + text: Union[ + TextInput, + PreTokenizedInput, + List[TextInput], + List[PreTokenizedInput], + List[List[TextInput]], + List[List[PreTokenizedInput]], + ] = None, + audio=None, + videos=None, + **kwargs: Unpack[IdeficsProcessorKwargs], + ) -> BatchFeature: + """This method takes batched or non-batched prompts made of text and images and converts them into prompts that + the model was trained on and prepares the image pixel values for the model to process. + + Args: + images (`Union[ImageInput, List[ImageInput], str, List[str], List[List[str]]]`): + either a single image or a batched list of images - can be passed in when text contains only text prompts, + in order to use the image-text-to-text behavior. + text (`Union[List[TextInput], [List[List[TextInput]]]]`): + either a single prompt or a batched list of prompts - see the detailed description immediately after + the end of the arguments doc section. + return_tensors (`str` or `TensorType`, *optional*, defaults to `TensorType.PYTORCH`): + The type of tensors to return. Can be one of: + - `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`. + + Returns: + a dict with entries: `input_ids`, `attention_mask`, `pixel_values`, `image_attention_mask` which can be + directly passed to `model.generate` + + Detailed explanation: + + Each entry in `text` is either a text to be passed as is or an image that will be processed. + + An image can be either an image object (`PIL.Image`) or a url from which the image can be retrieved. + + When the processor encounters an image it'll inject `` + entry into the prompt. + + Example: + + ```python + checkpoint = "HuggingFaceM4/idefics-9b" + processor = AutoProcessor.from_pretrained(checkpoint) + url = "https://hips.hearstapps.com/hmg-prod/images/cute-photos-of-cats-in-grass-1593184777.jpg" + img = processor.image_processor.fetch_images([url])[0] + + prompts = [ + "User:", + img, + "Describe this image.\nAssistant: An image of two kittens in grass.\n", + "User:", + "https://hips.hearstapps.com/hmg-prod/images/dog-puns-1581708208.jpg", + "Describe this image.\nAssistant:", + ] + + inputs = processor(text=prompts, return_tensors="pt") + generated_ids = model.generate(**inputs, max_length=100) + generated_text = processor.batch_decode(generated_ids, skip_special_tokens=True)[0] + ``` + + In this example the `prompts` will be converted into: + + ``` + User:Describe this image. + Assistant: An image of two kittens in grass. + User:Describe this image. + Assistant:' + ``` + + and the two images will be massaged using [`IdeficsImageProcessor.__call__`] method and placed inside the + `pixel_values` dict entry of the return value. + + This example also examplifies that images can be passed as objects or as text urls. It can be seen that the + first image is passed as object and the second one as a url. + + To do training do: + + ```python + image_transform = transforms.Compose( + [ + transforms.RandomResizedCrop( + (w, h), scale=(0.9, 1.0), interpolation=transforms.InterpolationMode.BICUBIC + ), + transforms.ToTensor(), + transforms.Normalize(mean=self.image_mean, std=self.image_std), + ] + ) + inputs = processor(text=prompts, transform=image_transform, return_tensors="pt") + ``` + + In order to help debug prompt generation enable `debug=True` which will show you what's happening. + + """ + if images is None and text is None: + raise ValueError("You need to specify either `text` or `images` and `text`.") + # check if images and text inputs are reversed for BC + images, text = _validate_images_text_input_order(images, text) + + if images is None: + # assuming the user wants to use the old behavior with prompts as the only argument + prompts = text + elif text is not None: + # Assuming image-text-to-text behavior: + # Check if batched images are provided + if not isinstance(images, (list, tuple)): + images = [images] + if isinstance(text, str): + text = [text] + # Check if batched images and text are in the correct format + if isinstance(text, (list, tuple)) and len(text) != len(images): + raise ValueError( + "When providing both images and text arguments, the number of text prompts should be the same as the number of images." + "If you want to have several images per prompt, images should be nested as such: images=[[img1, img2], [img3, img4], ...] for text=[prompt1, prompt2, ...]." + ) + # Check that only text is present in the prompts + if not all(isinstance(i, str) for i in text): + raise ValueError("When using the image-text-to-text behavior, the prompts should only contain text.") + if isinstance(images[0], (list, tuple)): + # if nested images, nest text as well + text = [[i] for i in text] + prompts = list(zip(images, text)) + + output_kwargs = self._merge_kwargs( + IdeficsProcessorKwargs, + tokenizer_init_kwargs=self.tokenizer.init_kwargs, + **kwargs, + ) + + add_eos_token = output_kwargs["text_kwargs"].pop("add_eos_token", False) + add_end_of_utterance_token = output_kwargs["text_kwargs"].pop("add_end_of_utterance_token", None) + + # if the value isn't overriden by the user, check if the tokenizer was trained with this token and then use it + if add_end_of_utterance_token is None: + add_end_of_utterance_token = self.tokenizer_was_trained_with_end_of_utterance_token + # turn non-batched prompts into batched + if not any(isinstance(i, (list, tuple)) for i in prompts): + prompts = [prompts] + + fake_token = "" + image_token = "" + end_of_utterance_token = "" + + def image_tokens(last_was_image): + if last_was_image: + return image_token + fake_token + else: + return fake_token + image_token + fake_token + + all_prompts = [] + all_images = [] + for sample in prompts: + # the model was trained on samples starting with + full_text = f"{self.tokenizer.bos_token}" + + # an image can either be an image object in the item or the url, everything else is a verbatim prompt text + image_objects = [] + last_was_image = False + last_was_text = False + for i, item in enumerate(sample): + if i > 0: + last_was_text = True if not last_was_image else False + + if isinstance(item, str): + item = item.strip(" ") + if is_url(item): + image = self.image_processor.fetch_images(item) + full_text += image_tokens(last_was_image) + image_objects.append(image) + last_was_image = True + else: + # we add end_of_utterance_token between each subsequent text prompts (but not at the last one!) + if add_end_of_utterance_token and last_was_text: + full_text += end_of_utterance_token + full_text += item + last_was_image = False + else: + # must be an image obj + full_text += image_tokens(last_was_image) + image_objects.append(item) + last_was_image = True + + if add_eos_token: + full_text += self.tokenizer.eos_token + + image_objects = self.image_processor(image_objects, **output_kwargs["images_kwargs"]) + + all_prompts.append(full_text) + all_images.append(image_objects) + + # For BC + return_tensors = output_kwargs["text_kwargs"].pop("return_tensors", "pt") + text_encoding = self.tokenizer(all_prompts, **output_kwargs["text_kwargs"]) + all_texts = text_encoding["input_ids"] + all_attention_masks = text_encoding["attention_mask"] + + # max_num_images has to be at least 1 even when there are no images + max_num_images = max(len(x) for x in all_images) + max_num_images = max(1, max_num_images) + + at_least_one_image = sum(len(x) for x in all_images) > 0 + output_input_ids = [] + output_images = [] + output_attention_masks = [] + + for text_single, attention_mask, extracted_images in zip(all_texts, all_attention_masks, all_images): + padded_input_ids = text_single + image_count = padded_input_ids.count(self.image_token_id) + local_max_num_images = min(image_count, max_num_images) + + current_images = extracted_images[:local_max_num_images] + + if len(current_images) > 0: + if return_tensors == "pt": + padded_image_tensor = torch.zeros(max_num_images, *current_images.size()[1:]) + padded_image_tensor[: current_images.size(0)] = current_images + elif return_tensors == "tf": + # Assuming current_images is a TensorFlow tensor + # Get the shape of current_images, excluding the first dimension + image_shape = tf.shape(current_images)[1:] + # Create a shape for the padded_image_tensor + padded_shape = tf.concat([[max_num_images], image_shape], axis=0) + # Create the padded_image_tensor of zeros + padded_image_tensor = tf.zeros(padded_shape, dtype=current_images.dtype) + # Get the number of images (assuming current_images has shape [num_images, height, width, channels]) + num_images = tf.shape(current_images)[0] + # Update the padded_image_tensor with the values from current_images + indices = tf.reshape(tf.range(num_images), (-1, 1)) + updates = current_images + padded_image_tensor = tf.tensor_scatter_nd_update(padded_image_tensor, indices, updates) + else: + if return_tensors == "pt": + padded_image_tensor = torch.zeros(max_num_images, *self.default_image_dims) + elif return_tensors == "tf": + padded_image_tensor = tf.zeros((max_num_images, *self.default_image_dims)) + + output_images.append(padded_image_tensor) + if return_tensors == "pt": + output_input_ids.append(torch.tensor(padded_input_ids)) + output_attention_masks.append(torch.tensor(attention_mask)) + elif return_tensors == "tf": + output_input_ids.append(tf.convert_to_tensor(padded_input_ids, dtype=tf.int32)) + output_attention_masks.append(attention_mask) + + if return_tensors == "pt": + output_input_ids = torch.stack(output_input_ids) + output_images = torch.stack(output_images) + output_attention_masks = torch.stack(output_attention_masks) + elif return_tensors == "tf": + output_input_ids = tf.stack(output_input_ids) + output_images = tf.stack(output_images) + output_attention_masks = tf.stack(output_attention_masks) + + if at_least_one_image: + image_attention_mask, _ = image_attention_mask_for_packed_input_ids( + output_input_ids, self.tokenizer, return_tensors + ) + image_attention_mask = incremental_to_binary_attention_mask( + image_attention_mask, return_tensors, num_classes=max_num_images + ) + else: + # in full language mode we set the image mask to all-0s + if return_tensors == "pt": + image_attention_mask = torch.zeros( + output_input_ids.shape[0], output_input_ids.shape[1], 1, dtype=torch.bool + ) + elif return_tensors == "tf": + image_attention_mask = tf.zeros( + (output_input_ids.shape[0], output_input_ids.shape[1], 1), dtype=tf.bool + ) + return BatchFeature( + data={ + "input_ids": output_input_ids, + "attention_mask": output_attention_masks, + "pixel_values": output_images, + "image_attention_mask": image_attention_mask, + } + ) + + def batch_decode(self, *args, **kwargs): + """ + This method forwards all its arguments to LlamaTokenizerFast's [`~PreTrainedTokenizer.batch_decode`]. Please + refer to the docstring of this method for more information. + """ + return self.tokenizer.batch_decode(*args, **kwargs) + + def decode(self, *args, **kwargs): + """ + This method forwards all its arguments to LlamaTokenizerFast's [`~PreTrainedTokenizer.decode`]. Please refer to + the docstring of this method for more information. + """ + return self.tokenizer.decode(*args, **kwargs) + + @property + def model_input_names(self): + tokenizer_input_names = self.tokenizer.model_input_names + image_processor_input_names = self.image_processor.model_input_names + return list(dict.fromkeys(tokenizer_input_names + image_processor_input_names)) + + +__all__ = ["IdeficsProcessor"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/vision.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/vision.py new file mode 100644 index 0000000000000000000000000000000000000000..5339b706924d8f0656f5f31bd3ede04d7b0d5ec4 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/vision.py @@ -0,0 +1,489 @@ +# coding=utf-8 +# Copyright 2021 The OpenAI Team Authors and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""PyTorch IdeficsVision model: a copy of CLIPVisionModel using a simpler config object""" + +import math +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import torch +import torch.utils.checkpoint +from torch import nn + +from ...activations import ACT2FN +from ...modeling_outputs import BaseModelOutput, BaseModelOutputWithPooling +from ...utils import ModelOutput, logging +from .configuration_idefics import IdeficsVisionConfig + + +logger = logging.get_logger(__name__) + + +@dataclass +class IdeficsVisionModelOutput(ModelOutput): + """ + Base class for vision model's outputs that also contains image embeddings of the pooling of the last hidden states. + + Args: + image_embeds (`torch.FloatTensor` of shape `(batch_size, output_dim)` *optional* returned when model is initialized with `with_projection=True`): + The image embeddings obtained by applying the projection layer to the pooler_output. + last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + Sequence of hidden-states at the output of the last layer of the model. + hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings, if the model has an embedding layer, + + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. + + Hidden-states of the model at the output of each layer plus the optional initial embedding outputs. + attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. + + Attentions weights after the attention softmax, used to compute the weighted average in the self-attention + heads. + """ + + image_embeds: Optional[torch.FloatTensor] = None + last_hidden_state: torch.FloatTensor = None + hidden_states: Optional[Tuple[torch.FloatTensor, ...]] = None + attentions: Optional[Tuple[torch.FloatTensor, ...]] = None + + +# Adapted from transformers.models.clip.modeling_clip.CLIPVisionEmbeddings +class IdeficsVisionEmbeddings(nn.Module): + def __init__(self, config: IdeficsVisionConfig): + super().__init__() + self.config = config + self.embed_dim = config.hidden_size + self.image_size = config.image_size + self.patch_size = config.patch_size + + self.class_embedding = nn.Parameter(torch.randn(self.embed_dim)) + + self.patch_embedding = nn.Conv2d( + in_channels=config.num_channels, + out_channels=self.embed_dim, + kernel_size=self.patch_size, + stride=self.patch_size, + bias=False, + ) + + self.num_patches = (self.image_size // self.patch_size) ** 2 + self.num_positions = self.num_patches + 1 + self.position_embedding = nn.Embedding(self.num_positions, self.embed_dim) + self.register_buffer("position_ids", torch.arange(self.num_positions).expand((1, -1)), persistent=False) + + # Heavily inspired from https://github.com/huggingface/transformers/blob/v4.33.0/src/transformers/models/vit/modeling_vit.py#L82 + def interpolate_pos_encoding(self, embeddings: torch.Tensor, height: int, width: int) -> torch.Tensor: + """ + This method allows to interpolate the pre-trained position encodings, to be able to use the model on higher + resolution images. + + Source: + https://github.com/facebookresearch/dino/blob/de9ee3df6cf39fac952ab558447af1fa1365362a/vision_transformer.py#L174 + """ + + num_patches = embeddings.shape[1] - 1 + pos_embed = self.position_embedding(self.position_ids) + num_positions = pos_embed.shape[1] - 1 + if num_patches == num_positions and height == width: + return pos_embed + class_pos_embed = pos_embed[:, 0] + patch_pos_embed = pos_embed[:, 1:] + + embed_dim = embeddings.shape[-1] + num_h_patches = height // self.config.patch_size + num_w_patches = width // self.config.patch_size + # we add a small number to avoid floating point error in the interpolation + # see discussion at https://github.com/facebookresearch/dino/issues/8 + num_h_patches, num_w_patches = num_h_patches + 0.1, num_w_patches + 0.1 + sqrt_num_positions = math.sqrt(num_positions) + patch_pos_embed = patch_pos_embed.reshape(1, int(sqrt_num_positions), int(sqrt_num_positions), embed_dim) + patch_pos_embed = patch_pos_embed.permute(0, 3, 1, 2) + fp32_upcasting = patch_pos_embed.dtype == torch.bfloat16 + if fp32_upcasting: + logger.warning_once( + "Upcasting patch_pos_embed to fp32 for interpolation since `upsample_bicubic2d_out_frame` in nn.functional.interpolate " + "is not implemented for 'torch.bfloat16' dtype. This will result in a slight overhead." + ) + patch_pos_embed = patch_pos_embed.to(torch.float) + patch_pos_embed = nn.functional.interpolate( + patch_pos_embed, + scale_factor=(num_h_patches / sqrt_num_positions, num_w_patches / sqrt_num_positions), + mode="bicubic", + align_corners=False, + ) + if fp32_upcasting: + patch_pos_embed = patch_pos_embed.to(torch.bfloat16) + if int(num_h_patches) != patch_pos_embed.shape[-2] or int(num_w_patches) != patch_pos_embed.shape[-1]: + raise ValueError( + f"Number of patches for images ({int(num_h_patches), int(num_w_patches)}) don't match the " + f"shape of position embedding ({patch_pos_embed.shape[-2], patch_pos_embed.shape[-1]})" + ) + patch_pos_embed = patch_pos_embed.permute(0, 2, 3, 1).view(1, -1, embed_dim) + return torch.cat((class_pos_embed.unsqueeze(0), patch_pos_embed), dim=1) + + def forward(self, pixel_values: torch.FloatTensor, interpolate_pos_encoding: bool = False) -> torch.Tensor: + batch_size, num_channels, height, width = pixel_values.shape + if not interpolate_pos_encoding: + if height != self.image_size or width != self.image_size: + raise ValueError( + f"Input image size ({height}*{width}) doesn't match model" + f" ({self.image_size}*{self.image_size}). You should try to set `interpolate_pos_encoding=True`" + ) + + target_dtype = self.patch_embedding.weight.dtype + patch_embeds = self.patch_embedding(pixel_values.to(dtype=target_dtype)) # shape = [*, width, grid, grid] + + patch_embeds = patch_embeds.flatten(2).transpose(1, 2) + + class_embeds = self.class_embedding.expand(batch_size, 1, -1) + embeddings = torch.cat([class_embeds, patch_embeds], dim=1) + + # add positional encoding to each token + if interpolate_pos_encoding: + embeddings = embeddings + self.interpolate_pos_encoding(embeddings, height, width) + else: + embeddings = embeddings + self.position_embedding(self.position_ids) + + return embeddings + + +# Copied from transformers.models.clip.modeling_clip.CLIPAttention with CLIP->IdeficsVision +class IdeficsVisionAttention(nn.Module): + """Multi-headed attention from 'Attention Is All You Need' paper""" + + def __init__(self, config): + super().__init__() + self.config = config + self.embed_dim = config.hidden_size + self.num_heads = config.num_attention_heads + self.head_dim = self.embed_dim // self.num_heads + if self.head_dim * self.num_heads != self.embed_dim: + raise ValueError( + f"embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim} and `num_heads`:" + f" {self.num_heads})." + ) + self.scale = self.head_dim**-0.5 + self.dropout = config.attention_dropout + + self.k_proj = nn.Linear(self.embed_dim, self.embed_dim) + self.v_proj = nn.Linear(self.embed_dim, self.embed_dim) + self.q_proj = nn.Linear(self.embed_dim, self.embed_dim) + self.out_proj = nn.Linear(self.embed_dim, self.embed_dim) + + def _shape(self, tensor: torch.Tensor, seq_len: int, bsz: int): + return tensor.view(bsz, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous() + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + causal_attention_mask: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor]]: + """Input shape: Batch x Time x Channel""" + + bsz, tgt_len, embed_dim = hidden_states.size() + + # get query proj + query_states = self.q_proj(hidden_states) * self.scale + key_states = self._shape(self.k_proj(hidden_states), -1, bsz) + value_states = self._shape(self.v_proj(hidden_states), -1, bsz) + + proj_shape = (bsz * self.num_heads, -1, self.head_dim) + query_states = self._shape(query_states, tgt_len, bsz).view(*proj_shape) + key_states = key_states.view(*proj_shape) + value_states = value_states.view(*proj_shape) + + src_len = key_states.size(1) + attn_weights = torch.bmm(query_states, key_states.transpose(1, 2)) + + if attn_weights.size() != (bsz * self.num_heads, tgt_len, src_len): + raise ValueError( + f"Attention weights should be of size {(bsz * self.num_heads, tgt_len, src_len)}, but is" + f" {attn_weights.size()}" + ) + + # apply the causal_attention_mask first + if causal_attention_mask is not None: + if causal_attention_mask.size() != (bsz, 1, tgt_len, src_len): + raise ValueError( + f"Attention mask should be of size {(bsz, 1, tgt_len, src_len)}, but is" + f" {causal_attention_mask.size()}" + ) + attn_weights = attn_weights.view(bsz, self.num_heads, tgt_len, src_len) + causal_attention_mask + attn_weights = attn_weights.view(bsz * self.num_heads, tgt_len, src_len) + + if attention_mask is not None: + if attention_mask.size() != (bsz, 1, tgt_len, src_len): + raise ValueError( + f"Attention mask should be of size {(bsz, 1, tgt_len, src_len)}, but is {attention_mask.size()}" + ) + attn_weights = attn_weights.view(bsz, self.num_heads, tgt_len, src_len) + attention_mask + attn_weights = attn_weights.view(bsz * self.num_heads, tgt_len, src_len) + + attn_weights = nn.functional.softmax(attn_weights, dim=-1) + + if output_attentions: + # this operation is a bit akward, but it's required to + # make sure that attn_weights keeps its gradient. + # In order to do so, attn_weights have to reshaped + # twice and have to be reused in the following + attn_weights_reshaped = attn_weights.view(bsz, self.num_heads, tgt_len, src_len) + attn_weights = attn_weights_reshaped.view(bsz * self.num_heads, tgt_len, src_len) + else: + attn_weights_reshaped = None + + attn_probs = nn.functional.dropout(attn_weights, p=self.dropout, training=self.training) + + attn_output = torch.bmm(attn_probs, value_states) + + if attn_output.size() != (bsz * self.num_heads, tgt_len, self.head_dim): + raise ValueError( + f"`attn_output` should be of size {(bsz, self.num_heads, tgt_len, self.head_dim)}, but is" + f" {attn_output.size()}" + ) + + attn_output = attn_output.view(bsz, self.num_heads, tgt_len, self.head_dim) + attn_output = attn_output.transpose(1, 2) + attn_output = attn_output.reshape(bsz, tgt_len, embed_dim) + + attn_output = self.out_proj(attn_output) + + return attn_output, attn_weights_reshaped + + +# Copied from transformers.models.clip.modeling_clip.CLIPMLP with CLIP->IdeficsVision +class IdeficsVisionMLP(nn.Module): + def __init__(self, config): + super().__init__() + self.config = config + self.activation_fn = ACT2FN[config.hidden_act] + self.fc1 = nn.Linear(config.hidden_size, config.intermediate_size) + self.fc2 = nn.Linear(config.intermediate_size, config.hidden_size) + + def forward(self, hidden_states: torch.Tensor) -> torch.Tensor: + hidden_states = self.fc1(hidden_states) + hidden_states = self.activation_fn(hidden_states) + hidden_states = self.fc2(hidden_states) + return hidden_states + + +# Copied from transformers.models.altclip.modeling_altclip.AltCLIPEncoderLayer with AltCLIP->IdeficsVision +class IdeficsVisionEncoderLayer(nn.Module): + def __init__(self, config: IdeficsVisionConfig): + super().__init__() + self.embed_dim = config.hidden_size + self.self_attn = IdeficsVisionAttention(config) + self.layer_norm1 = nn.LayerNorm(self.embed_dim, eps=config.layer_norm_eps) + self.mlp = IdeficsVisionMLP(config) + self.layer_norm2 = nn.LayerNorm(self.embed_dim, eps=config.layer_norm_eps) + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: torch.Tensor, + causal_attention_mask: torch.Tensor, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.FloatTensor]: + """ + Args: + hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)` + attention_mask (`torch.FloatTensor`): attention mask of size + `(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values. + `(config.encoder_attention_heads,)`. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + """ + residual = hidden_states + + hidden_states = self.layer_norm1(hidden_states) + hidden_states, attn_weights = self.self_attn( + hidden_states=hidden_states, + attention_mask=attention_mask, + causal_attention_mask=causal_attention_mask, + output_attentions=output_attentions, + ) + hidden_states = residual + hidden_states + + residual = hidden_states + hidden_states = self.layer_norm2(hidden_states) + hidden_states = self.mlp(hidden_states) + hidden_states = residual + hidden_states + + outputs = (hidden_states,) + + if output_attentions: + outputs += (attn_weights,) + + return outputs + + +# Copied from transformers.models.altclip.modeling_altclip.AltCLIPEncoder with AltCLIP->IdeficsVision +class IdeficsVisionEncoder(nn.Module): + """ + Transformer encoder consisting of `config.num_hidden_layers` self attention layers. Each layer is a + [`IdeficsVisionEncoderLayer`]. + + Args: + config: IdeficsVisionConfig + """ + + def __init__(self, config: IdeficsVisionConfig): + super().__init__() + self.config = config + self.layers = nn.ModuleList([IdeficsVisionEncoderLayer(config) for _ in range(config.num_hidden_layers)]) + self.gradient_checkpointing = False + + def forward( + self, + inputs_embeds, + attention_mask: Optional[torch.Tensor] = None, + causal_attention_mask: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, BaseModelOutput]: + r""" + Args: + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. + This is useful if you want more control over how to convert `input_ids` indices into associated vectors + than the model's internal embedding lookup matrix. + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + causal_attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Causal mask for the text model. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors + for more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + encoder_states = () if output_hidden_states else None + all_attentions = () if output_attentions else None + + hidden_states = inputs_embeds + for idx, encoder_layer in enumerate(self.layers): + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + if self.gradient_checkpointing and self.training: + layer_outputs = self._gradient_checkpointing_func( + encoder_layer.__call__, + hidden_states, + attention_mask, + causal_attention_mask, + output_attentions, + ) + else: + layer_outputs = encoder_layer( + hidden_states, + attention_mask, + causal_attention_mask, + output_attentions=output_attentions, + ) + + hidden_states = layer_outputs[0] + + if output_attentions: + all_attentions = all_attentions + (layer_outputs[1],) + + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + + if not return_dict: + return tuple(v for v in [hidden_states, encoder_states, all_attentions] if v is not None) + return BaseModelOutput( + last_hidden_state=hidden_states, hidden_states=encoder_states, attentions=all_attentions + ) + + +# Adapted from transformers.models.clip.modeling_clip.CLIPVisionTransformer +class IdeficsVisionTransformer(nn.Module): + def __init__(self, config: IdeficsVisionConfig): + super().__init__() + self.config = config + embed_dim = config.hidden_size + + self.embeddings = IdeficsVisionEmbeddings(config) + self.pre_layrnorm = nn.LayerNorm(embed_dim, eps=config.layer_norm_eps) + self.encoder = IdeficsVisionEncoder(config) + self.post_layernorm = nn.LayerNorm(embed_dim, eps=config.layer_norm_eps) + + # Adapted from transformers.models.clip.modeling_clip.CLIPVisionTransformer.forward + def forward( + self, + pixel_values: Optional[torch.FloatTensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + interpolate_pos_encoding: Optional[bool] = False, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, BaseModelOutputWithPooling]: + r""" + Returns: + + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if pixel_values is None: + raise ValueError("You have to specify pixel_values") + + hidden_states = self.embeddings(pixel_values, interpolate_pos_encoding=interpolate_pos_encoding) + hidden_states = self.pre_layrnorm(hidden_states) + + encoder_outputs = self.encoder( + inputs_embeds=hidden_states, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + + last_hidden_state = encoder_outputs[0] + pooled_output = last_hidden_state[:, 0, :] + pooled_output = self.post_layernorm(pooled_output) + + if not return_dict: + return (last_hidden_state, pooled_output) + encoder_outputs[1:] + + return BaseModelOutputWithPooling( + last_hidden_state=last_hidden_state, + pooler_output=pooled_output, + hidden_states=encoder_outputs.hidden_states, + attentions=encoder_outputs.attentions, + ) diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/vision_tf.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/vision_tf.py new file mode 100644 index 0000000000000000000000000000000000000000..7acfa0193942f900591fe403d17f049efa1824d0 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics/vision_tf.py @@ -0,0 +1,572 @@ +# coding=utf-8 +# Copyright 2021 The OpenAI Team Authors and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""TF IdeficsVision model: a copy of CLIPVisionModel using a simpler config object""" + +import math +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import tensorflow as tf + +from ...activations_tf import get_tf_activation +from ...modeling_tf_outputs import TFBaseModelOutput, TFBaseModelOutputWithPooling +from ...modeling_tf_utils import TFPreTrainedModel, shape_list +from ...tf_utils import flatten +from ...utils import ModelOutput, logging +from .configuration_idefics import IdeficsVisionConfig + + +logger = logging.get_logger(__name__) + + +@dataclass +class TFIdeficsVisionModelOutput(ModelOutput): + """ + Base class for vision model's outputs that also contains image embeddings of the pooling of the last hidden states. + + Args: + image_embeds (`tf.Tensor` of shape `(batch_size, output_dim)` *optional* returned when model is initialized with `with_projection=True`): + The image embeddings obtained by applying the projection layer to the pooler_output. + last_hidden_state (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`): + Sequence of hidden-states at the output of the last layer of the model. + hidden_states (`tuple(tf.Tensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `tf.Tensor` (one for the output of the embeddings, if the model has an embedding layer, + + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. + + Hidden-states of the model at the output of each layer plus the optional initial embedding outputs. + attentions (`tuple(tf.Tensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `tf.Tensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. + + Attentions weights after the attention softmax, used to compute the weighted average in the self-attention + heads. + """ + + image_embeds: Optional[tf.Tensor] = None + last_hidden_state: tf.Tensor = None + hidden_states: Optional[Tuple[tf.Tensor]] = None + attentions: Optional[Tuple[tf.Tensor]] = None + + +class TFIdeficsVisionEmbeddings(tf.keras.layers.Layer): + def __init__(self, config: IdeficsVisionConfig, **kwargs): + super().__init__(**kwargs) + self.config = config + self.embed_dim = config.hidden_size + self.image_size = config.image_size + self.patch_size = config.patch_size + + self.patch_embedding = tf.keras.layers.Conv2D( + filters=self.embed_dim, + kernel_size=self.patch_size, + strides=self.patch_size, + use_bias=False, + padding="valid", + data_format="channels_last", + name="patch_embedding", + ) + + self.num_patches = (self.image_size // self.patch_size) ** 2 + self.num_positions = self.num_patches + 1 + self.position_embedding = tf.keras.layers.Embedding( + self.num_positions, self.embed_dim, name="position_embedding" + ) + # self.position_ids = tf.range(self.num_positions)[tf.newaxis, :] + + def interpolate_pos_encoding(self, embeddings: tf.Tensor, height: int, width: int) -> tf.Tensor: + num_patches = shape_list(embeddings)[1] - 1 + pos_embed = self.position_embedding(self.position_ids) + num_positions = shape_list(pos_embed)[1] - 1 + if num_patches == num_positions and height == width: + return pos_embed + class_pos_embed = pos_embed[:, 0] + patch_pos_embed = pos_embed[:, 1:] + + embed_dim = shape_list(embeddings)[-1] + num_h_patches = height // self.config.patch_size + num_w_patches = width // self.config.patch_size + num_h_patches, num_w_patches = num_h_patches + 0.1, num_w_patches + 0.1 + sqrt_num_positions = math.sqrt(float(num_positions)) + patch_pos_embed = tf.reshape(patch_pos_embed, (1, int(sqrt_num_positions), int(sqrt_num_positions), embed_dim)) + + scale_height = num_h_patches / sqrt_num_positions + scale_width = num_w_patches / sqrt_num_positions + original_height = tf.cast(tf.shape(patch_pos_embed)[1], tf.float32) + original_width = tf.cast(tf.shape(patch_pos_embed)[2], tf.float32) + # Apply scaling + new_height = tf.cast(original_height * scale_height, tf.int32) + new_width = tf.cast(original_width * scale_width, tf.int32) + + patch_pos_embed = tf.image.resize( + patch_pos_embed, size=[new_height, new_width], method=tf.image.ResizeMethod.BICUBIC + ) + + if ( + int(num_h_patches) != shape_list(patch_pos_embed)[-3] + or int(num_w_patches) != shape_list(patch_pos_embed)[-2] + ): + raise ValueError( + f"Number of patches for images ({int(num_h_patches), int(num_w_patches)}) don't match the " + f"shape of position embedding ({shape_list(patch_pos_embed)[-2], shape_list(patch_pos_embed)[-1]})" + ) + patch_pos_embed = tf.reshape(patch_pos_embed, (1, -1, embed_dim)) + return tf.concat((class_pos_embed[tf.newaxis, :], patch_pos_embed), axis=1) + + def call(self, pixel_values: tf.Tensor, interpolate_pos_encoding: bool = False) -> tf.Tensor: + # Input `pixel_values` is NCHW format which doesn't run on CPU so first thing we do is + # transpose it to change it to NHWC. We don't care to transpose it back because + # the Conv2D layer is only hit once for each query + + if isinstance(pixel_values, dict): + pixel_values = pixel_values["pixel_values"] + + pixel_values = tf.transpose(pixel_values, perm=(0, 2, 3, 1)) + batch_size, height, width, num_channels = shape_list(pixel_values) + if not interpolate_pos_encoding: + if height != self.image_size or width != self.image_size: + raise ValueError( + f"Input image size ({height}*{width}) doesn't match model" + f" ({self.image_size}*{self.image_size}). You should try to set `interpolate_pos_encoding=True`" + ) + + patch_embeds = self.patch_embedding(pixel_values) # shape = [*, width, grid, grid] + # Change the 2D spatial dimensions to a single temporal dimension. + # shape = (batch_size, num_patches, out_channels=embed_dim) + patch_embeds = flatten(patch_embeds, 1, 2) + + class_embeds = tf.broadcast_to( + self.class_embedding[tf.newaxis, tf.newaxis, :], [batch_size, 1, self.embed_dim] + ) + embeddings = tf.concat([class_embeds, patch_embeds], axis=1) + + # add positional encoding to each token + if interpolate_pos_encoding: + embeddings = embeddings + self.interpolate_pos_encoding(embeddings, height, width) + else: + embeddings = embeddings + self.position_embedding(self.position_ids) + + return embeddings + + def build(self, input_shape=None): + if self.built: + return + self.built = True + self.position_ids = tf.range(self.num_positions, name="self.position_ids")[tf.newaxis, :] + self.class_embedding = self.add_weight(shape=(self.embed_dim,), name="class_embedding") + if getattr(self, "patch_embedding", None) is not None: + with tf.name_scope(self.patch_embedding.name): + self.patch_embedding.build([None, None, None, self.config.num_channels]) + if getattr(self, "position_embedding", None) is not None: + with tf.name_scope(self.position_embedding.name): + self.position_embedding.build(None) + + +class TFIdeficsVisionAttention(tf.keras.layers.Layer): + """Multi-headed attention from 'Attention Is All You Need' paper""" + + def __init__(self, config, **kwargs): + super().__init__(**kwargs) + self.config = config + self.embed_dim = config.hidden_size + self.num_heads = config.num_attention_heads + self.head_dim = self.embed_dim // self.num_heads + if self.head_dim * self.num_heads != self.embed_dim: + raise ValueError( + f"embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim} and `num_heads`:" + f" {self.num_heads})." + ) + self.scale = self.head_dim**-0.5 + self.dropout = config.attention_dropout + + self.k_proj = tf.keras.layers.Dense(self.embed_dim, name="k_proj") + self.v_proj = tf.keras.layers.Dense(self.embed_dim, name="v_proj") + self.q_proj = tf.keras.layers.Dense(self.embed_dim, name="q_proj") + self.out_proj = tf.keras.layers.Dense(self.embed_dim, name="out_proj") + + def _shape(self, tensor: tf.Tensor, seq_len: int, bsz: int): + return tf.transpose(tf.reshape(tensor, (bsz, seq_len, self.num_heads, self.head_dim)), perm=[0, 2, 1, 3]) + + def call( + self, + hidden_states: tf.Tensor, + attention_mask: Optional[tf.Tensor] = None, + causal_attention_mask: Optional[tf.Tensor] = None, + output_attentions: Optional[bool] = False, + ) -> Tuple[tf.Tensor, Optional[tf.Tensor], Optional[Tuple[tf.Tensor]]]: + """Input shape: Batch x Time x Channel""" + + bsz, tgt_len, embed_dim = shape_list(hidden_states) + + # get query proj + query_states = self.q_proj(hidden_states) * self.scale + key_states = self._shape(self.k_proj(hidden_states), -1, bsz) + value_states = self._shape(self.v_proj(hidden_states), -1, bsz) + + proj_shape = (bsz * self.num_heads, -1, self.head_dim) + query_states = tf.reshape(self._shape(query_states, tgt_len, bsz), proj_shape) + key_states = tf.reshape(key_states, proj_shape) + value_states = tf.reshape(value_states, proj_shape) + + src_len = shape_list(key_states)[1] + attn_weights = tf.linalg.matmul(query_states, key_states, transpose_b=True) + + tf.debugging.assert_equal( + tf.shape(attn_weights), + [bsz * self.num_heads, tgt_len, src_len], + message=f"Attention weights should be of size {[bsz * self.num_heads, tgt_len, src_len]}, but is {tf.shape(attn_weights)}", + ) + + # apply the causal_attention_mask first + if causal_attention_mask is not None: + if shape_list(causal_attention_mask) != [bsz, 1, tgt_len, src_len]: + raise ValueError( + f"Attention mask should be of size {(bsz, 1, tgt_len, src_len)}, but is" + f" {shape_list(causal_attention_mask)}" + ) + attn_weights = tf.reshape(attn_weights, (bsz, self.num_heads, tgt_len, src_len)) + causal_attention_mask + attn_weights = tf.reshape(attn_weights, (bsz * self.num_heads, tgt_len, src_len)) + + if attention_mask is not None: + if shape_list(attention_mask) != [bsz, 1, tgt_len, src_len]: + raise ValueError( + f"Attention mask should be of size {(bsz, 1, tgt_len, src_len)}, but is {shape_list(attention_mask)}" + ) + attn_weights = tf.reshape(attn_weights, (bsz, self.num_heads, tgt_len, src_len)) + attention_mask + attn_weights = tf.reshape(attn_weights, (bsz * self.num_heads, tgt_len, src_len)) + + attn_weights = tf.nn.softmax(attn_weights, axis=-1) + + if output_attentions: + # this operation is a bit akward, but it's required to + # make sure that attn_weights keeps its gradient. + # In order to do so, attn_weights have to reshaped + # twice and have to be reused in the following + attn_weights_reshaped = tf.reshape(attn_weights, (bsz, self.num_heads, tgt_len, src_len)) + attn_weights = tf.reshape(attn_weights_reshaped, (bsz * self.num_heads, tgt_len, src_len)) + else: + attn_weights_reshaped = None + + attn_probs = tf.nn.dropout(attn_weights, rate=self.dropout) + + attn_output = tf.linalg.matmul(attn_probs, value_states) + + tf.debugging.assert_equal( + tf.shape(attn_output), + [bsz * self.num_heads, tgt_len, self.head_dim], + message=f"Attention weights should be of size {[bsz * self.num_heads, tgt_len, self.head_dim]}, but is {tf.shape(attn_output)}", + ) + + attn_output = tf.reshape(attn_output, (bsz, self.num_heads, tgt_len, self.head_dim)) + attn_output = tf.transpose(attn_output, perm=[0, 2, 1, 3]) + attn_output = tf.reshape(attn_output, (bsz, tgt_len, embed_dim)) + + attn_output = self.out_proj(attn_output) + + return attn_output, attn_weights_reshaped + + def build(self, input_shape=None): + if self.built: + return + self.built = True + if getattr(self, "k_proj", None) is not None: + with tf.name_scope(self.k_proj.name): + self.k_proj.build((self.embed_dim, self.embed_dim)) + if getattr(self, "v_proj", None) is not None: + with tf.name_scope(self.v_proj.name): + self.v_proj.build((self.embed_dim, self.embed_dim)) + if getattr(self, "q_proj", None) is not None: + with tf.name_scope(self.q_proj.name): + self.q_proj.build((self.embed_dim, self.embed_dim)) + if getattr(self, "out_proj", None) is not None: + with tf.name_scope(self.out_proj.name): + self.out_proj.build((self.embed_dim, self.embed_dim)) + + +class TFIdeficsVisionMLP(tf.keras.layers.Layer): + def __init__(self, config, **kwargs): + super().__init__(**kwargs) + self.config = config + self.activation_fn = get_tf_activation(config.hidden_act) + self.fc1 = tf.keras.layers.Dense(config.intermediate_size, name="fc1") + self.fc2 = tf.keras.layers.Dense(config.hidden_size, name="fc2") + + def call(self, hidden_states: tf.Tensor) -> tf.Tensor: + hidden_states = self.fc1(hidden_states) + hidden_states = self.activation_fn(hidden_states) + hidden_states = self.fc2(hidden_states) + return hidden_states + + def build(self, input_shape=None): + if self.built: + return + self.built = True + if getattr(self, "fc1", None) is not None: + with tf.name_scope(self.fc1.name): + self.fc1.build(self.config.hidden_size) + if getattr(self, "fc2", None) is not None: + with tf.name_scope(self.fc2.name): + self.fc2.build(self.config.intermediate_size) + + +class TFIdeficsVisionEncoderLayer(tf.keras.layers.Layer): + def __init__(self, config: IdeficsVisionConfig, **kwargs): + super().__init__(**kwargs) + self.embed_dim = config.hidden_size + self.self_attn = TFIdeficsVisionAttention(config, name="self_attn") + self.layer_norm1 = tf.keras.layers.LayerNormalization(epsilon=config.layer_norm_eps, name="layer_norm1") + self.mlp = TFIdeficsVisionMLP(config, name="mlp") + self.layer_norm2 = tf.keras.layers.LayerNormalization(epsilon=config.layer_norm_eps, name="layer_norm2") + + def call( + self, + hidden_states: tf.Tensor, + attention_mask: tf.Tensor, + causal_attention_mask: tf.Tensor, + output_attentions: Optional[bool] = False, + ) -> Tuple[tf.Tensor]: + """ + Args: + hidden_states (`tf.Tensor`): input to the layer of shape `(batch, seq_len, embed_dim)` + attention_mask (`tf.Tensor`): attention mask of size + `(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values. + `(config.encoder_attention_heads,)`. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + """ + residual = hidden_states + + hidden_states = self.layer_norm1(hidden_states) + hidden_states, attn_weights = self.self_attn( + hidden_states=hidden_states, + attention_mask=attention_mask, + causal_attention_mask=causal_attention_mask, + output_attentions=output_attentions, + ) + hidden_states = residual + hidden_states + + residual = hidden_states + hidden_states = self.layer_norm2(hidden_states) + hidden_states = self.mlp(hidden_states) + hidden_states = residual + hidden_states + + outputs = (hidden_states,) + + if output_attentions: + outputs += (attn_weights,) + + return outputs + + def build(self, input_shape=None): + if self.built: + return + self.built = True + if getattr(self, "layer_norm1", None) is not None: + with tf.name_scope(self.layer_norm1.name): + self.layer_norm1.build([None, None, self.embed_dim]) + if getattr(self, "layer_norm2", None) is not None: + with tf.name_scope(self.layer_norm2.name): + self.layer_norm2.build([None, None, self.embed_dim]) + + +class TFIdeficsVisionEncoder(tf.keras.layers.Layer): + """ + Transformer encoder consisting of `config.num_hidden_layers` self attention layers. Each layer is a + [`TFIdeficsVisionEncoderLayer`]. + + Args: + config: IdeficsVisionConfig + """ + + def __init__(self, config: IdeficsVisionConfig, **kwargs): + super().__init__(**kwargs) + self.config = config + self.layers = [ + TFIdeficsVisionEncoderLayer(config, name=f"layers.{i}") for i in range(config.num_hidden_layers) + ] + self.gradient_checkpointing = False + + def call( + self, + inputs_embeds, + attention_mask: Optional[tf.Tensor] = None, + causal_attention_mask: Optional[tf.Tensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + training: Optional[bool] = None, + ) -> Union[Tuple, TFBaseModelOutput]: + r""" + Args: + inputs_embeds (`tf.Tensor` of shape `(batch_size, sequence_length, hidden_size)`): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. + This is useful if you want more control over how to convert `input_ids` indices into associated vectors + than the model's internal embedding lookup matrix. + attention_mask (`tf.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + causal_attention_mask (`tf.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Causal mask for the text model. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors + for more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + encoder_states = () if output_hidden_states else None + all_attentions = () if output_attentions else None + + hidden_states = inputs_embeds + for idx, encoder_layer in enumerate(self.layers): + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + if self.gradient_checkpointing and training: + + def create_custom_forward(module): + def custom_forward(*inputs): + return module(*inputs, output_attentions) + + return custom_forward + + layer_outputs = tf.recompute_grad( + create_custom_forward(encoder_layer), + hidden_states, + attention_mask, + causal_attention_mask, + ) + else: + layer_outputs = encoder_layer( + hidden_states, + attention_mask, + causal_attention_mask, + output_attentions=output_attentions, + ) + + hidden_states = layer_outputs[0] + + if output_attentions: + all_attentions = all_attentions + (layer_outputs[1],) + + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + + if not return_dict: + return tuple(v for v in [hidden_states, encoder_states, all_attentions] if v is not None) + return TFBaseModelOutput( + last_hidden_state=hidden_states, hidden_states=encoder_states, attentions=all_attentions + ) + + def build(self, input_shape=None): + if self.built: + return + self.built = True + if getattr(self, "layers", None) is not None: + for layer in self.layers: + with tf.name_scope(layer.name): + layer.build(None) + + +class TFIdeficsVisionTransformer(TFPreTrainedModel): + def __init__(self, config: IdeficsVisionConfig, **kwargs): + super().__init__(config, **kwargs) + self.config = config + self.embed_dim = config.hidden_size + + self.embeddings = TFIdeficsVisionEmbeddings(config, name="embeddings") + self.pre_layrnorm = tf.keras.layers.LayerNormalization(epsilon=config.layer_norm_eps, name="pre_layrnorm") + self.encoder = TFIdeficsVisionEncoder(config, name="encoder") + self.post_layernorm = tf.keras.layers.LayerNormalization(epsilon=config.layer_norm_eps, name="post_layernorm") + + # Adapted from transformers.models.clip.modeling_clip.CLIPVisionTransformer.forward + def call( + self, + pixel_values: Optional[tf.Tensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + interpolate_pos_encoding: Optional[bool] = False, + return_dict: Optional[bool] = None, + training: Optional[bool] = False, + ) -> Union[Tuple, TFBaseModelOutputWithPooling]: + r""" + Returns: + + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if pixel_values is None: + raise ValueError("You have to specify pixel_values") + + hidden_states = self.embeddings(pixel_values, interpolate_pos_encoding=interpolate_pos_encoding) + hidden_states = self.pre_layrnorm(hidden_states) + encoder_outputs = self.encoder( + inputs_embeds=hidden_states, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + training=training, + ) + + last_hidden_state = encoder_outputs[0] + pooled_output = last_hidden_state[:, 0, :] + pooled_output = self.post_layernorm(pooled_output) + + if not return_dict: + return (last_hidden_state, pooled_output) + encoder_outputs[1:] + + return TFBaseModelOutputWithPooling( + last_hidden_state=last_hidden_state, + pooler_output=pooled_output, + hidden_states=encoder_outputs.hidden_states, + attentions=encoder_outputs.attentions, + ) + + def build(self, input_shape=None): + if self.built: + return + self.built = True + if getattr(self, "embeddings", None) is not None: + with tf.name_scope(self.embeddings.name): + self.embeddings.build(None) + if getattr(self, "pre_layrnorm", None) is not None: + with tf.name_scope(self.pre_layrnorm.name): + self.pre_layrnorm.build([None, None, self.embed_dim]) + if getattr(self, "encoder", None) is not None: + with tf.name_scope(self.encoder.name): + self.encoder.build(None) + if getattr(self, "post_layernorm", None) is not None: + with tf.name_scope(self.post_layernorm.name): + self.post_layernorm.build([None, self.embed_dim]) diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/__init__.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..b76a53a081fe9ae1f21bf673c921bbfb595e3f15 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/__init__.py @@ -0,0 +1,29 @@ +# Copyright 2024 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +from typing import TYPE_CHECKING + +from ...utils import _LazyModule +from ...utils.import_utils import define_import_structure + + +if TYPE_CHECKING: + from .configuration_idefics2 import * + from .image_processing_idefics2 import * + from .modeling_idefics2 import * + from .processing_idefics2 import * +else: + import sys + + _file = globals()["__file__"] + sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__) diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/configuration_idefics2.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/configuration_idefics2.py new file mode 100644 index 0000000000000000000000000000000000000000..2f0376a8952db16b41d568e6c00dcba4e2584528 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/configuration_idefics2.py @@ -0,0 +1,264 @@ +# coding=utf-8 +# Copyright 2024 The HuggingFace Inc. team. All rights reserved. +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Idefics2 model configuration""" + +from ...configuration_utils import PretrainedConfig +from ...utils import logging +from ..auto import CONFIG_MAPPING, AutoConfig + + +logger = logging.get_logger(__name__) + + +class Idefics2VisionConfig(PretrainedConfig): + r""" + This is the configuration class to store the configuration of a [`Idefics2VisionModel`]. It is used to instantiate a + Idefics2 vision encoder according to the specified arguments, defining the model architecture. Instantiating a + configuration with the defaults will yield a similar configuration to that of the SigLIP checkpoint + [google/siglip-base-patch16-224](https://huggingface.co/google/siglip-base-patch16-224) used in the Idefics2 model + [HuggingFaceM4/idefics2-8b](https://huggingface.co/HuggingFaceM4/idefics2-8b). + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Args: + hidden_size (`int`, *optional*, defaults to 768): + Dimensionality of the encoder layers and the pooler layer. + intermediate_size (`int`, *optional*, defaults to 3072): + Dimensionality of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder. + num_hidden_layers (`int`, *optional*, defaults to 12): + Number of hidden layers in the Transformer encoder. + num_attention_heads (`int`, *optional*, defaults to 12): + Number of attention heads for each attention layer in the Transformer encoder. + num_channels (`int`, *optional*, defaults to 3): + Number of channels in the input images. + image_size (`int`, *optional*, defaults to 224): + The size (resolution) of each image. + patch_size (`int`, *optional*, defaults to 32): + The size (resolution) of each patch. + hidden_act (`str` or `function`, *optional*, defaults to `"gelu_pytorch_tanh"`): + The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`, + `"relu"`, `"selu"` and `"gelu_new"` `"quick_gelu"` are supported. + layer_norm_eps (`float`, *optional*, defaults to 1e-06): + The epsilon used by the layer normalization layers. + attention_dropout (`float`, *optional*, defaults to 0.0): + The dropout ratio for the attention probabilities. + initializer_range (`float`, *optional*, defaults to 0.02): + The standard deviation for initializing all weight matrices in the model. + + Example: + + ```python + >>> from transformers.models.idefics2.modeling_idefics2 import Idefics2VisionTransformer + >>> from transformers.models.idefics2.configuration_idefics2 import Idefics2VisionConfig + + >>> # Initializing a Idefics2VisionConfig with google/siglip-base-patch16-224 style configuration + >>> configuration = Idefics2VisionConfig() + + >>> # Initializing a Idefics2VisionTransformer (with random weights) from the google/siglip-base-patch16-224 style configuration + >>> model = Idefics2VisionTransformer(configuration) + + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "idefics2_vision" + base_config_key = "vision_config" + + def __init__( + self, + hidden_size=768, + intermediate_size=3072, + num_hidden_layers=12, + num_attention_heads=12, + num_channels=3, + image_size=224, + patch_size=32, + hidden_act="gelu_pytorch_tanh", + layer_norm_eps=1e-6, + attention_dropout=0.0, + initializer_range=0.02, + **kwargs, + ): + super().__init__(**kwargs) + + self.hidden_size = hidden_size + self.intermediate_size = intermediate_size + self.num_hidden_layers = num_hidden_layers + self.num_attention_heads = num_attention_heads + self.num_channels = num_channels + self.patch_size = patch_size + self.image_size = image_size + self.attention_dropout = attention_dropout + self.layer_norm_eps = layer_norm_eps + self.hidden_act = hidden_act + self.initializer_range = initializer_range + + +class Idefics2PerceiverConfig(PretrainedConfig): + r""" + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Args: + hidden_act (`str` or `function`, *optional*, defaults to `"silu"`): + The non-linear activation function (function or string) in the perceiver block. + hidden_size (`int`, *optional*, defaults to 4096): + Dimension of the hidden representations. + rms_norm_eps (`float`, *optional*, defaults to 1e-06): + The epsilon used by the rms normalization layers. + resampler_n_latents (`int`, *optional*, defaults to 64): + Number of latent embeddings to resample ("compress") the input sequence to (usually < 128). + resampler_depth (`int`, *optional*, defaults to 3): + Depth of the Perceiver Resampler (Transformer w/ cross attention). Should be shallow (<= 3). + resampler_n_heads (`int`, *optional*, defaults to 16): + Number of heads in each Transformer block (for multi-headed self-attention). + resampler_head_dim (`int`, *optional*, defaults to 96): + Dimensionality of each head projection in the Transformer block. + num_key_value_heads (`int`, *optional*, defaults to 4): + Number of key-value heads in the perceiver attention block. + attention_dropout (`float`, *optional*, defaults to 0.0): + The dropout ratio for the attention probabilities. + """ + + model_type = "idefics2_perceiver" + + def __init__( + self, + hidden_act="silu", + hidden_size=4096, + rms_norm_eps=1e-06, + resampler_n_latents=64, + resampler_depth=3, + resampler_n_heads=16, + resampler_head_dim=96, + num_key_value_heads=4, + attention_dropout=0.0, + **kwargs, + ): + self.hidden_act = hidden_act + self.hidden_size = hidden_size + self.rms_norm_eps = rms_norm_eps + self.resampler_n_latents = resampler_n_latents + self.resampler_depth = resampler_depth + self.resampler_n_heads = resampler_n_heads + self.num_key_value_heads = num_key_value_heads + self.resampler_head_dim = resampler_head_dim + self.attention_dropout = attention_dropout + if self.num_key_value_heads > self.resampler_n_heads: + raise ValueError( + f"num_key_value_heads={self.num_key_value_heads} must be less than or equal to" + f" resampler_n_heads={self.resampler_n_heads}" + ) + super().__init__(**kwargs) + + +class Idefics2Config(PretrainedConfig): + r""" + This is the configuration class to store the configuration of a [`Idefics2Model`]. It is used to instantiate a + Idefics2 model according to the specified arguments, defining the model architecture. Instantiating a + configuration with the defaults will yield a similar configuration to that of the model of the Idefics2 + [HuggingFaceM4/idefics2-8b](https://huggingface.co/HuggingFaceM4/idefics2-8b) architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Args: + use_cache (`bool`, *optional*, defaults to `True`): + Whether or not the model should cache the key/value pairs of the attention mechanism. + image_token_id (`int`, *optional*, defaults to 32001): + The id of the "image" token. + tie_word_embeddings (`bool`, *optional*, defaults to `False`): + Whether or not to tie the word embeddings with the token embeddings. + vision_config (`IdeficsVisionConfig` or `dict`, *optional*): + Custom vision config or dict + perceiver_config (`IdeficsPerceiverConfig` or `dict`, *optional*): + Custom perceiver config or dict + text_config (`MistralConfig` or `dict`, *optional*): + Custom text config or dict for the text model + + Example: + ```python + >>> from transformers import Idefics2Model, Idefics2Config + >>> # Initializing configuration + >>> configuration = Idefics2Config() + >>> # Initializing a model from the configuration + >>> model = Idefics2Model(configuration) + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "idefics2" + sub_configs = { + "text_config": AutoConfig, + "perceiver_config": Idefics2PerceiverConfig, + "vision_config": Idefics2VisionConfig, + } + + def __init__( + self, + use_cache=True, + image_token_id=32_001, + tie_word_embeddings=False, + vision_config=None, + perceiver_config=None, + text_config=None, + **kwargs, + ): + self.image_token_id = image_token_id + self.use_cache = use_cache + self.tie_word_embeddings = tie_word_embeddings + + if perceiver_config is None: + self.perceiver_config = Idefics2PerceiverConfig() + logger.info("perciver_config is None, using default perceiver config") + elif isinstance(perceiver_config, dict): + self.perceiver_config = Idefics2PerceiverConfig(**perceiver_config) + elif isinstance(perceiver_config, Idefics2PerceiverConfig): + self.perceiver_config = perceiver_config + + if vision_config is None: + self.vision_config = Idefics2VisionConfig() + logger.info("vision_config is None, using default vision config") + elif isinstance(vision_config, dict): + self.vision_config = Idefics2VisionConfig(**vision_config) + elif isinstance(vision_config, Idefics2VisionConfig): + self.vision_config = vision_config + + if isinstance(text_config, dict): + text_config["model_type"] = text_config["model_type"] if "model_type" in text_config else "mistral" + text_config = CONFIG_MAPPING[text_config["model_type"]](**text_config) + elif text_config is None: + logger.info("text_config is None, using default text config") + text_config = CONFIG_MAPPING["mistral"]( + max_position_embeddings=4096 * 8, + rms_norm_eps=1e-5, + # None in the original configuration_mistral, we set it to the unk_token_id + pad_token_id=0, + tie_word_embeddings=False, + ) + + self.text_config = text_config + if self.text_config.hidden_size != self.perceiver_config.hidden_size: + self.perceiver_config.hidden_size = self.text_config.hidden_size + self.perceiver_config.rms_norm_eps = self.text_config.rms_norm_eps + logger.warning_once( + "Perceiver config has a different `hidden_size` than text config, which means default values were used. " + "In your model's config on the hub, add `hidden_size` and `rms_norm_eps` keys under the `perceiver_config` dict. " + ) + + super().__init__(**kwargs, tie_word_embeddings=tie_word_embeddings) + + +__all__ = ["Idefics2Config"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/convert_idefics2_weights_to_hf.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/convert_idefics2_weights_to_hf.py new file mode 100644 index 0000000000000000000000000000000000000000..ea44ee11e58c7901430b8cb8509372ddb63c892e --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/convert_idefics2_weights_to_hf.py @@ -0,0 +1,185 @@ +# Copyright 2024 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import argparse +import copy + +import torch +from accelerate import init_empty_weights + +from transformers import ( + AutoConfig, + AutoModelForCausalLM, + AutoTokenizer, + Idefics2Config, + Idefics2ForConditionalGeneration, + Idefics2ImageProcessor, + Idefics2Processor, + MistralConfig, +) + + +EPILOG_TXT = """Example: + python transformers/src/transformers/models/idefics2/convert_idefics2_weights_to_hf.py --original_model_id HuggingFaceM4/idefics2-8b --output_hub_path org/idefics2 +""" + + +KEYS_TO_MODIFY_MAPPING = { + "lm_head.weight": "lm_head.linear.weight", + "model.layers": "model.text_model.layers", + "model.norm": "model.text_model.norm", + "model.perceiver_resampler": "model.connector.perceiver_resampler", + "model.modality_projection": "model.connector.modality_projection", +} + + +WEIGHTS_TO_MERGE_MAPPING = ( + # (weights to merge in merging order), (new weight name) + ( + ("model.embed_tokens.weight", "model.embed_tokens.additional_embedding.weight"), + "model.text_model.embed_tokens.weight", + ), + (("lm_head.linear.weight", "additional_fc.weight"), "lm_head.weight"), +) + + +def convert_state_dict_to_hf(state_dict): + new_state_dict = {} + for key, value in state_dict.items(): + if key.endswith(".inv_freq"): + continue + for key_to_modify, new_key in KEYS_TO_MODIFY_MAPPING.items(): + if key_to_modify in key: + key = key.replace(key_to_modify, new_key) + + new_state_dict[key] = value + return new_state_dict + + +def merge_weights(state_dict): + new_state_dict = copy.deepcopy(state_dict) + + # Merge the weights + for weights_to_merge, new_weight_name in WEIGHTS_TO_MERGE_MAPPING: + for weight in weights_to_merge: + assert weight in state_dict, f"Weight {weight} is missing in the state dict" + if new_weight_name not in new_state_dict: + new_state_dict[new_weight_name] = [state_dict[weight]] + else: + new_state_dict[new_weight_name].append(state_dict[weight]) + new_state_dict[new_weight_name] = torch.cat(new_state_dict[new_weight_name], dim=0) + + # Remove the weights that were merged + for weights_to_merge, new_weight_name in WEIGHTS_TO_MERGE_MAPPING: + for weight in weights_to_merge: + if weight in new_state_dict and weight != new_weight_name: + new_state_dict.pop(weight) + + return new_state_dict + + +def get_config(checkpoint): + if checkpoint == "HuggingFaceM4/idefics2": + # We load the config then recreate to use the text_config + config = AutoConfig.from_pretrained(checkpoint) + text_config = MistralConfig( + vocab_size=config.vocab_size + config.additional_vocab_size, + hidden_size=config.hidden_size, + intermediate_size=config.intermediate_size, + num_hidden_layers=config.num_hidden_layers, + num_attention_heads=config.num_attention_heads, + num_key_value_heads=config.num_key_value_heads, + hidden_act=config.hidden_act, + max_position_embeddings=config.max_position_embeddings, + initializer_range=config.initializer_range, + rms_norm_eps=config.rms_norm_eps, + tie_word_embeddings=config.tie_word_embeddings, + rope_theta=config.rope_theta, + sliding_window=config.sliding_window, + attention_dropout=config.attention_dropout, + pad_token_id=config.pad_token_id, + bos_token_id=config.bos_token_id, + eos_token_id=config.eos_token_id, + ) + perceiver_config = config.perceiver_config.to_dict() + config = Idefics2Config( + text_config=text_config.to_dict(), + vision_config=config.vision_config, + perceiver_config=perceiver_config, + use_cache=config.use_cache, + image_token_id=config.image_token_id, + tie_word_embeddings=config.tie_word_embeddings, + ) + return config + + return AutoConfig.from_pretrained(checkpoint) + + +def convert_idefics2_hub_to_hf(original_model_id, output_hub_path, push_to_hub): + # The original model maps to AutoModelForCausalLM, converted we map to Idefics2ForConditionalGeneration + original_model = AutoModelForCausalLM.from_pretrained(original_model_id, trust_remote_code=True) + # The original model doesn't use the idefics2 processing objects + image_seq_len = original_model.config.perceiver_config.resampler_n_latents + image_processor = Idefics2ImageProcessor() + tokenizer = AutoTokenizer.from_pretrained(original_model_id) + processor = Idefics2Processor( + image_processor=image_processor, + tokenizer=tokenizer, + image_seq_len=image_seq_len, + ) + state_dict = original_model.state_dict() + state_dict = convert_state_dict_to_hf(state_dict) + + # Merge weights + state_dict = merge_weights(state_dict) + + config = get_config(original_model_id) + + with init_empty_weights(): + model = Idefics2ForConditionalGeneration(config) + + model.load_state_dict(state_dict, strict=True, assign=True) + + model.save_pretrained(output_hub_path) + processor.save_pretrained(output_hub_path) + + if push_to_hub: + model.push_to_hub(output_hub_path, private=True) + processor.push_to_hub(output_hub_path, private=True) + + +def main(): + parser = argparse.ArgumentParser( + epilog=EPILOG_TXT, + formatter_class=argparse.RawDescriptionHelpFormatter, + ) + parser.add_argument( + "--original_model_id", + help="Hub location of the text model", + ) + parser.add_argument( + "--output_hub_path", + help="Location on the hub of the converted model", + ) + parser.add_argument( + "--push_to_hub", + action="store_true", + help="If set, the model will be pushed to the hub after conversion.", + ) + args = parser.parse_args() + convert_idefics2_hub_to_hf(args.original_model_id, args.output_hub_path, args.push_to_hub) + + +if __name__ == "__main__": + main() diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/image_processing_idefics2.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/image_processing_idefics2.py new file mode 100644 index 0000000000000000000000000000000000000000..2a853fc02e7a547db3ce8f9eb70a016278779b6a --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/image_processing_idefics2.py @@ -0,0 +1,567 @@ +# coding=utf-8 +# Copyright 2024 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + + +from typing import Any, Dict, Iterable, List, Optional, Tuple, Union + +import numpy as np + +from ...image_processing_utils import BaseImageProcessor, BatchFeature +from ...image_transforms import PaddingMode, pad, resize, to_channel_dimension_format +from ...image_utils import ( + IMAGENET_STANDARD_MEAN, + IMAGENET_STANDARD_STD, + ChannelDimension, + ImageInput, + PILImageResampling, + get_image_size, + infer_channel_dimension_format, + is_scaled_image, + make_nested_list_of_images, + to_numpy_array, + valid_images, + validate_preprocess_arguments, +) +from ...utils import TensorType, is_vision_available, logging + + +logger = logging.get_logger(__name__) + + +if is_vision_available(): + import PIL + from PIL import Image + + +def get_resize_output_image_size(image, size, input_data_format) -> Tuple[int, int]: + """ + Get the output size of the image after resizing given a dictionary specifying the max and min sizes. + + Args: + image (`np.ndarray`): + Image to resize. + size (`Dict[str, int]`): + Size of the output image containing the keys "shortest_edge" and "longest_edge". + input_data_format (`ChannelDimension` or `str`): + The channel dimension format of the input image. + + Returns: + The output size of the image after resizing. + """ + height, width = get_image_size(image, channel_dim=input_data_format) + + min_len = size["shortest_edge"] + max_len = size["longest_edge"] + aspect_ratio = width / height + + if width >= height and width > max_len: + width = max_len + height = int(width / aspect_ratio) + elif height > width and height > max_len: + height = max_len + width = int(height * aspect_ratio) + height = max(height, min_len) + width = max(width, min_len) + return height, width + + +# Copied from transformers.models.detr.image_processing_detr.max_across_indices +def max_across_indices(values: Iterable[Any]) -> List[Any]: + """ + Return the maximum value across all indices of an iterable of values. + """ + return [max(values_i) for values_i in zip(*values)] + + +def get_max_height_width( + images_list: List[List[np.ndarray]], input_data_format: Optional[Union[str, ChannelDimension]] = None +) -> List[int]: + """ + Get the maximum height and width across all images in a batch. + """ + if input_data_format is None: + input_data_format = infer_channel_dimension_format(images_list[0][0]) + + image_sizes = [] + for images in images_list: + for image in images: + image_sizes.append(get_image_size(image, channel_dim=input_data_format)) + + max_height, max_width = max_across_indices(image_sizes) + return (max_height, max_width) + + +# Copied from transformers.models.detr.image_processing_detr.make_pixel_mask +def make_pixel_mask( + image: np.ndarray, output_size: Tuple[int, int], input_data_format: Optional[Union[str, ChannelDimension]] = None +) -> np.ndarray: + """ + Make a pixel mask for the image, where 1 indicates a valid pixel and 0 indicates padding. + + Args: + image (`np.ndarray`): + Image to make the pixel mask for. + output_size (`Tuple[int, int]`): + Output size of the mask. + """ + input_height, input_width = get_image_size(image, channel_dim=input_data_format) + mask = np.zeros(output_size, dtype=np.int64) + mask[:input_height, :input_width] = 1 + return mask + + +# FIXME Amy: merge this function with the one in image_transforms.py +def convert_to_rgb(image: ImageInput) -> ImageInput: + """ + Converts an image to RGB format. Only converts if the image is of type PIL.Image.Image, otherwise returns the image + as is. + Args: + image (Image): + The image to convert. + """ + if not isinstance(image, PIL.Image.Image): + return image + + # `image.convert("RGB")` would only work for .jpg images, as it creates a wrong background + # for transparent images. The call to `alpha_composite` handles this case + if image.mode == "RGB": + return image + + image_rgba = image.convert("RGBA") + background = Image.new("RGBA", image_rgba.size, (255, 255, 255)) + alpha_composite = Image.alpha_composite(background, image_rgba) + alpha_composite = alpha_composite.convert("RGB") + return alpha_composite + + +class Idefics2ImageProcessor(BaseImageProcessor): + r""" + Constructs a Idefics image processor. + + Args: + do_convert_rgb (`bool`, *optional*, defaults to `True`): + Whether to convert the image to RGB. This is useful if the input image is of a different format e.g. RGBA. + Only has an effect if the input image is in the PIL format. + do_resize (`bool`, *optional*, defaults to `True`): + Whether to resize the image. The longest edge of the image is resized to be <= `size["longest_edge"]`, with the + shortest edge resized to keep the input aspect ratio, with a minimum size of `size["shortest_edge"]`. + size (`Dict`, *optional*): + Controls the size of the output image. This is a dictionary containing the keys "shortest_edge" and "longest_edge". + resample (`Resampling`, *optional*, defaults to `Resampling.BILINEAR`): + Resampling filter to use when resizing the image. + do_rescale (`bool`, *optional*, defaults to `True`): + Whether to rescale the image. If set to `True`, the image is rescaled to have pixel values between 0 and 1. + rescale_factor (`float`, *optional*, defaults to `1/255`): + Rescale factor to rescale the image by if `do_rescale` is set to `True`. + do_normalize (`bool`, *optional*, defaults to `True`): + Whether to normalize the image. If set to `True`, the image is normalized to have a mean of `image_mean` and + a standard deviation of `image_std`. + image_mean (`float` or `List[float]`, *optional*, defaults to `IDEFICS_STANDARD_MEAN`): + Mean to use if normalizing the image. This is a float or list of floats the length of the number of + channels in the image. Can be overridden by the `image_mean` parameter in the `preprocess` method. Can be + overridden by the `image_mean` parameter in the `preprocess` method. + image_std (`float` or `List[float]`, *optional*, defaults to `IDEFICS_STANDARD_STD`): + Standard deviation to use if normalizing the image. This is a float or list of floats the length of the + number of channels in the image. Can be overridden by the `image_std` parameter in the `preprocess` method. + Can be overridden by the `image_std` parameter in the `preprocess` method. + do_pad (`bool`, *optional*, defaults to `True`): + Whether or not to pad the images to the largest height and width in the batch and number of images per + sample in the batch, such that the returned tensor is of shape (batch_size, max_num_images, num_channels, max_height, max_width). + do_image_splitting (`bool`, *optional*, defaults to `False`): + Whether to split the image into a sequence 4 equal sub-images concatenated with the original image. That + strategy was first introduced in https://arxiv.org/abs/2311.06607. + """ + + model_input_names = ["pixel_values", "pixel_attention_mask"] + + def __init__( + self, + do_convert_rgb: bool = True, + do_resize: bool = True, + size: Dict[str, int] = None, + resample: PILImageResampling = PILImageResampling.BILINEAR, + do_rescale: bool = True, + rescale_factor: float = 1 / 255, + do_normalize: bool = True, + image_mean: Optional[Union[float, List[float]]] = None, + image_std: Optional[Union[float, List[float]]] = None, + do_pad: bool = True, + do_image_splitting: bool = False, + **kwargs, + ) -> None: + super().__init__(**kwargs) + self.do_convert_rgb = do_convert_rgb + self.do_resize = do_resize + self.size = size if size is not None else {"shortest_edge": 378, "longest_edge": 980} + self.resample = resample + self.do_rescale = do_rescale + self.rescale_factor = rescale_factor + self.do_normalize = do_normalize + self.image_mean = image_mean if image_mean is not None else IMAGENET_STANDARD_MEAN + self.image_std = image_std if image_std is not None else IMAGENET_STANDARD_STD + self.do_pad = do_pad + self.do_image_splitting = do_image_splitting + + def resize( + self, + image: np.ndarray, + size: Dict[str, int], + resample: PILImageResampling = PILImageResampling.BILINEAR, + data_format: Optional[Union[str, ChannelDimension]] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + **kwargs, + ) -> np.ndarray: + """ + Resize an image. The shortest edge of the image is resized to size["shortest_edge"], with the longest edge + resized to keep the input aspect ratio. + + Args: + image (`np.ndarray`): + Image to resize. + size (`Dict[str, int]`): + Size of the output image. + resample (`PILImageResampling`, *optional*, defaults to `PILImageResampling.BICUBIC`): + Resampling filter to use when resiizing the image. + data_format (`str` or `ChannelDimension`, *optional*): + The channel dimension format of the image. If not provided, it will be the same as the input image. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format of the input image. If not provided, it will be inferred. + """ + if "shortest_edge" in size and "longest_edge" in size: + size = get_resize_output_image_size(image, size, input_data_format) + elif "height" in size and "width" in size: + size = (size["height"], size["width"]) + else: + raise ValueError( + "size must be a dictionary with keys 'shortest_edge' and 'longest_edge' or 'height' and 'width'." + ) + return resize( + image, size, resample=resample, data_format=data_format, input_data_format=input_data_format, **kwargs + ) + + # Copied from transformers.models.vilt.image_processing_vilt.ViltImageProcessor._pad_image + def _pad_image( + self, + image: np.ndarray, + output_size: Tuple[int, int], + constant_values: Union[float, Iterable[float]] = 0, + data_format: Optional[ChannelDimension] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ) -> np.ndarray: + """ + Pad an image with zeros to the given size. + """ + input_height, input_width = get_image_size(image, channel_dim=input_data_format) + output_height, output_width = output_size + + pad_bottom = output_height - input_height + pad_right = output_width - input_width + padding = ((0, pad_bottom), (0, pad_right)) + padded_image = pad( + image, + padding, + mode=PaddingMode.CONSTANT, + constant_values=constant_values, + data_format=data_format, + input_data_format=input_data_format, + ) + return padded_image + + def pad( + self, + images: List[np.ndarray], + constant_values: Union[float, Iterable[float]] = 0, + return_pixel_mask: bool = True, + return_tensors: Optional[Union[str, TensorType]] = None, + data_format: Optional[ChannelDimension] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ) -> BatchFeature: + """ + For a list of images, for each images, pads a batch of images to the bottom and right of the image with zeros to the size of largest height and width. + For each sample in the batch, pads the sample with empty images to the max_number of images per sample in the batch. Optionally returns a pixel mask. + + Args: + images (`np.ndarray`): + List of list of images to pad. Pads to the largest height and width in the batch. + constant_values (`float` or `Iterable[float]`, *optional*): + The value to use for the padding if `mode` is `"constant"`. + return_pixel_mask (`bool`, *optional*, defaults to `True`): + Whether to return a pixel mask. + return_tensors (`str` or `TensorType`, *optional*): + The type of tensors to return. Can be one of: + - Unset: Return a list of `np.ndarray`. + - `TensorType.TENSORFLOW` or `'tf'`: Return a batch of type `tf.Tensor`. + - `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`. + - `TensorType.NUMPY` or `'np'`: Return a batch of type `np.ndarray`. + - `TensorType.JAX` or `'jax'`: Return a batch of type `jax.numpy.ndarray`. + data_format (`str` or `ChannelDimension`, *optional*): + The channel dimension format of the image. If not provided, it will be the same as the input image. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format of the input image. If not provided, it will be inferred. + """ + pad_size = get_max_height_width(images, input_data_format=input_data_format) + + batch_size = len(images) + max_num_images = max(len(images_) for images_ in images) + input_data_format = ( + infer_channel_dimension_format(images[0][0]) if input_data_format is None else input_data_format + ) + data_format = input_data_format if data_format is None else data_format + + def empty_image(size, input_data_format): + if input_data_format == ChannelDimension.FIRST: + return np.zeros((3, *size), dtype=np.uint8) + elif input_data_format == ChannelDimension.LAST: + return np.zeros((*size, 3), dtype=np.uint8) + raise ValueError("Invalid channel dimension format.") + + padded_images_list = [ + [empty_image(pad_size, data_format) for _ in range(max_num_images)] for _ in range(batch_size) + ] + padded_masks = [[np.zeros(pad_size) for _ in range(max_num_images)] for _ in range(batch_size)] + + for batch_idx in range(batch_size): + for sample_idx, image in enumerate(images[batch_idx]): + padded_images_list[batch_idx][sample_idx] = self._pad_image( + image, + pad_size, + constant_values=constant_values, + data_format=data_format, + input_data_format=input_data_format, + ) + padded_masks[batch_idx][sample_idx] = make_pixel_mask( + image, output_size=pad_size, input_data_format=input_data_format + ) + + padded_masks = padded_masks if return_pixel_mask else None + return padded_images_list, padded_masks + + def _crop( + self, + im: np.ndarray, + w1: int, + h1: int, + w2: int, + h2: int, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ) -> np.ndarray: + if input_data_format == ChannelDimension.FIRST: + return im[:, h1:h2, w1:w2] + elif input_data_format == ChannelDimension.LAST: + return im[h1:h2, w1:w2, :] + + def split_image( + self, + image: np.ndarray, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ): + """ + Split an image into 4 equal sub-images, and the concatenate that sequence with the original image. + That means that a single image becomes a sequence of 5 images. + This is a "trick" to spend more compute on each image with no changes in the vision encoder. + + Args: + image (`np.ndarray`): + Images to split. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format of the input image. If not provided, it will be inferred. + """ + height, width = get_image_size(image, input_data_format) + + mid_width = width // 2 + mid_height = height // 2 + return [ + self._crop(image, 0, 0, mid_width, mid_height, input_data_format), + self._crop(image, mid_width, 0, width, mid_height, input_data_format), + self._crop(image, 0, mid_height, mid_width, height, input_data_format), + self._crop(image, mid_width, mid_height, width, height, input_data_format), + image, + ] + + def preprocess( + self, + images: ImageInput, + do_convert_rgb: Optional[bool] = None, + do_resize: Optional[bool] = None, + size: Optional[Dict[str, int]] = None, + resample: PILImageResampling = None, + do_rescale: Optional[bool] = None, + rescale_factor: Optional[float] = None, + do_normalize: Optional[bool] = None, + image_mean: Optional[Union[float, List[float]]] = None, + image_std: Optional[Union[float, List[float]]] = None, + do_pad: Optional[bool] = None, + do_image_splitting: Optional[bool] = None, + return_tensors: Optional[Union[str, TensorType]] = None, + input_data_format: Optional[ChannelDimension] = None, + data_format: Optional[ChannelDimension] = ChannelDimension.FIRST, + ): + """ + Preprocess a batch of images. + + Args: + images (`ImageInput`): + A list of images to preprocess. + do_convert_rgb (`bool`, *optional*, defaults to `self.do_convert_rgb`): + Whether to convert the image to RGB. + do_resize (`bool`, *optional*, defaults to `self.do_resize`): + Whether to resize the image. + size (`Dict[str, int]`, *optional*, defaults to `self.size`): + Size of the image after resizing. Shortest edge of the image is resized to size["shortest_edge"], with + the longest edge resized to keep the input aspect ratio. + resample (`int`, *optional*, defaults to `self.resample`): + Resampling filter to use if resizing the image. This can be one of the enum `PILImageResampling`. Only + has an effect if `do_resize` is set to `True`. + do_rescale (`bool`, *optional*, defaults to `self.do_rescale`): + Whether to rescale the image. + rescale_factor (`float`, *optional*, defaults to `self.rescale_factor`): + Rescale factor to rescale the image by if `do_rescale` is set to `True`. + do_normalize (`bool`, *optional*, defaults to `self.do_normalize`): + Whether to normalize the image. + image_mean (`float` or `List[float]`, *optional*, defaults to `self.image_mean`): + Image mean to use for normalization. Only has an effect if `do_normalize` is set to `True`. + image_std (`float` or `List[float]`, *optional*, defaults to `self.image_std`): + Image standard deviation to use for normalization. Only has an effect if `do_normalize` is set to + `True`. + do_pad (`bool`, *optional*, defaults to `self.do_pad`): + Whether or not to pad the images to the largest height and width in the batch. + do_image_splitting (`bool`, *optional*, defaults to `self.do_image_splitting`): + Whether to split the image into a sequence 4 equal sub-images concatenated with the original image. That + strategy was first introduced in https://arxiv.org/abs/2311.06607. + return_tensors (`str` or `TensorType`, *optional*): + The type of tensors to return. Can be one of: + - Unset: Return a list of `np.ndarray`. + - `TensorType.TENSORFLOW` or `'tf'`: Return a batch of type `tf.Tensor`. + - `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`. + - `TensorType.NUMPY` or `'np'`: Return a batch of type `np.ndarray`. + - `TensorType.JAX` or `'jax'`: Return a batch of type `jax.numpy.ndarray`. + data_format (`ChannelDimension` or `str`, *optional*, defaults to `ChannelDimension.FIRST`): + The channel dimension format for the output image. Can be one of: + - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format. + - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format. + - Unset: Use the channel dimension format of the input image. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format for the input image. If unset, the channel dimension format is inferred + from the input image. Can be one of: + - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format. + - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format. + - `"none"` or `ChannelDimension.NONE`: image in (height, width) format. + """ + do_resize = do_resize if do_resize is not None else self.do_resize + size = size if size is not None else self.size + resample = resample if resample is not None else self.resample + do_rescale = do_rescale if do_rescale is not None else self.do_rescale + rescale_factor = rescale_factor if rescale_factor is not None else self.rescale_factor + do_normalize = do_normalize if do_normalize is not None else self.do_normalize + image_mean = image_mean if image_mean is not None else self.image_mean + image_std = image_std if image_std is not None else self.image_std + do_convert_rgb = do_convert_rgb if do_convert_rgb is not None else self.do_convert_rgb + do_pad = do_pad if do_pad is not None else self.do_pad + do_image_splitting = do_image_splitting if do_image_splitting is not None else self.do_image_splitting + + images_list = make_nested_list_of_images(images) + + if not valid_images(images_list[0]): + raise ValueError( + "Invalid image type. Must be of type PIL.Image.Image, numpy.ndarray, " + "torch.Tensor, tf.Tensor or jax.ndarray." + ) + + validate_preprocess_arguments( + do_rescale=do_rescale, + rescale_factor=rescale_factor, + do_normalize=do_normalize, + image_mean=image_mean, + image_std=image_std, + do_resize=do_resize, + size=size, + resample=resample, + ) + + if do_convert_rgb: + images_list = [[convert_to_rgb(image) for image in images] for images in images_list] + + # All transformations expect numpy arrays. + images_list = [[to_numpy_array(image) for image in images] for images in images_list] + + if do_rescale and is_scaled_image(images_list[0][0]): + logger.warning_once( + "It looks like you are trying to rescale already rescaled images. If the input" + " images have pixel values between 0 and 1, set `do_rescale=False` to avoid rescaling them again." + ) + + if input_data_format is None: + # We assume that all images have the same channel dimension format. + input_data_format = infer_channel_dimension_format(images_list[0][0]) + + if do_image_splitting: + new_images_list = [] + for images in images_list: + new_images = [] + for image in images: + new_images.extend(self.split_image(image, input_data_format)) + new_images_list.append(new_images) + images_list = new_images_list + + if do_resize: + images_list = [ + [ + self.resize(image=image, size=size, resample=resample, input_data_format=input_data_format) + for image in images + ] + for images in images_list + ] + + if do_rescale: + images_list = [ + [ + self.rescale(image=image, scale=rescale_factor, input_data_format=input_data_format) + for image in images + ] + for images in images_list + ] + + if do_normalize: + images_list = [ + [ + self.normalize(image=image, mean=image_mean, std=image_std, input_data_format=input_data_format) + for image in images + ] + for images in images_list + ] + + pixel_attention_mask = None + if do_pad: + images_list, pixel_attention_mask = self.pad( + images_list, return_pixel_mask=True, return_tensors=return_tensors, input_data_format=input_data_format + ) + + if data_format is not None: + images_list = [ + [ + to_channel_dimension_format(image, data_format, input_channel_dim=input_data_format) + for image in images + ] + for images in images_list + ] + + data = {"pixel_values": np.array(images_list) if do_pad else images_list} # Faster tensor conversion + if pixel_attention_mask is not None: + data["pixel_attention_mask"] = np.array(pixel_attention_mask) if do_pad else pixel_attention_mask + + return BatchFeature(data=data, tensor_type=return_tensors) + + +__all__ = ["Idefics2ImageProcessor"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/modeling_idefics2.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/modeling_idefics2.py new file mode 100644 index 0000000000000000000000000000000000000000..603ab05d7990138d40c0141861d2b1a33bb00d39 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/modeling_idefics2.py @@ -0,0 +1,1715 @@ +# coding=utf-8 +# Copyright 2024 the HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""PyTorch Idefics2 model.""" + +import math +from dataclasses import dataclass +from typing import List, Optional, Tuple, Union + +import torch +import torch.utils.checkpoint +from torch import nn +from torch.nn import CrossEntropyLoss + +from ...activations import ACT2FN +from ...cache_utils import Cache, DynamicCache +from ...generation import GenerationMixin +from ...modeling_attn_mask_utils import _prepare_4d_attention_mask +from ...modeling_outputs import BaseModelOutput, ModelOutput +from ...modeling_utils import PreTrainedModel +from ...utils import ( + add_start_docstrings, + add_start_docstrings_to_model_forward, + is_flash_attn_2_available, + is_flash_attn_greater_or_equal_2_10, + logging, + replace_return_docstrings, +) +from ...utils.deprecation import deprecate_kwarg +from ..auto import AutoModel +from .configuration_idefics2 import Idefics2Config, Idefics2PerceiverConfig, Idefics2VisionConfig + + +if is_flash_attn_2_available(): + from ...modeling_flash_attention_utils import _flash_attention_forward + + +logger = logging.get_logger(__name__) + +_CONFIG_FOR_DOC = "Idefics2Config" + + +@dataclass +class Idefics2BaseModelOutputWithPast(ModelOutput): + """ + Base class for Idefics2 model's outputs that may also contain a past key/values (to speed up sequential decoding). + Args: + last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + Sequence of hidden-states at the output of the last layer of the model. + If `past_key_values` is used only the last hidden-state of the sequences of shape `(batch_size, 1, + hidden_size)` is output. + past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape + `(batch_size, num_heads, sequence_length, embed_size_per_head)`) and optionally if + `config.is_encoder_decoder=True` 2 additional tensors of shape `(batch_size, num_heads, + encoder_sequence_length, embed_size_per_head)`. + Contains pre-computed hidden-states (key and values in the self-attention blocks and optionally if + `config.is_encoder_decoder=True` in the cross-attention blocks) that can be used (see `past_key_values` + input) to speed up sequential decoding. + hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings, if the model has an embedding layer, + + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. + Hidden-states of the model at the output of each layer plus the optional initial embedding outputs. + attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. + Attentions weights after the attention softmax, used to compute the weighted average in the self-attention + heads. + image_hidden_states (`tuple(torch.FloatTensor)`, *optional*): + Tuple of `torch.FloatTensor` (one for the output of the image embeddings, `(batch_size, num_images, + sequence_length, hidden_size)`. + image_hidden_states of the model produced by the vision encoder, and optionally by the perceiver + """ + + last_hidden_state: torch.FloatTensor = None + past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None + hidden_states: Optional[Tuple[torch.FloatTensor]] = None + attentions: Optional[Tuple[torch.FloatTensor]] = None + image_hidden_states: Optional[Tuple[torch.FloatTensor]] = None + + +@dataclass +# Copied from transformers.models.idefics.modeling_idefics.IdeficsCausalLMOutputWithPast with Idefics->Idefics2 +class Idefics2CausalLMOutputWithPast(ModelOutput): + """ + Base class for Idefics2 causal language model (or autoregressive) outputs. + Args: + loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned when `labels` is provided): + Language modeling loss (for next-token prediction). + logits (`torch.FloatTensor` of shape `(batch_size, sequence_length, config.vocab_size)`): + Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax). + past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape + `(batch_size, num_heads, sequence_length, embed_size_per_head)`) + Contains pre-computed hidden-states (key and values in the self-attention blocks) that can be used (see + `past_key_values` input) to speed up sequential decoding. + hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings, if the model has an embedding layer, + + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. + Hidden-states of the model at the output of each layer plus the optional initial embedding outputs. + attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. + Attentions weights after the attention softmax, used to compute the weighted average in the self-attention + heads. + image_hidden_states (`tuple(torch.FloatTensor)`, *optional*): + Tuple of `torch.FloatTensor` (one for the output of the image embeddings, `(batch_size, num_images, + sequence_length, hidden_size)`. + image_hidden_states of the model produced by the vision encoder, and optionally by the perceiver + """ + + loss: Optional[torch.FloatTensor] = None + logits: torch.FloatTensor = None + past_key_values: Optional[List[torch.FloatTensor]] = None + hidden_states: Optional[Tuple[torch.FloatTensor]] = None + attentions: Optional[Tuple[torch.FloatTensor]] = None + image_hidden_states: Optional[Tuple[torch.FloatTensor]] = None + + +class Idefics2VisionEmbeddings(nn.Module): + """ + This is a modified version of `siglip.modelign_siglip.SiglipVisionEmbeddings` to enable images of variable + resolution. + + The modifications are adapted from [Patch n' Pack: NaViT, a Vision Transformer for any Aspect Ratio and Resolution](https://arxiv.org/abs/2307.06304) + which allows treating images in their native aspect ratio and without the need to resize them to the same + fixed size. In particular, we start from the original pre-trained SigLIP model + (which uses images of fixed-size square images) and adapt it by training on images of variable resolutions. + """ + + def __init__(self, config: Idefics2VisionConfig): + super().__init__() + self.embed_dim = config.hidden_size + self.image_size = config.image_size + self.patch_size = config.patch_size + + self.patch_embedding = nn.Conv2d( + in_channels=config.num_channels, + out_channels=self.embed_dim, + kernel_size=self.patch_size, + stride=self.patch_size, + padding="valid", + ) + + self.num_patches_per_side = self.image_size // self.patch_size + self.num_patches = self.num_patches_per_side**2 + self.num_positions = self.num_patches + self.position_embedding = nn.Embedding(self.num_positions, self.embed_dim) + + def forward(self, pixel_values: torch.FloatTensor, patch_attention_mask: torch.BoolTensor) -> torch.Tensor: + batch_size, _, max_im_h, max_im_w = pixel_values.shape + + patch_embeds = self.patch_embedding(pixel_values) + embeddings = patch_embeds.flatten(2).transpose(1, 2) + + max_nb_patches_h, max_nb_patches_w = max_im_h // self.patch_size, max_im_w // self.patch_size + boundaries = torch.arange(1 / self.num_patches_per_side, 1.0, 1 / self.num_patches_per_side) + position_ids = torch.full(size=(batch_size, max_nb_patches_h * max_nb_patches_w), fill_value=0) + + for batch_idx, p_attn_mask in enumerate(patch_attention_mask): + nb_patches_h = p_attn_mask[:, 0].sum() + nb_patches_w = p_attn_mask[0].sum() + + fractional_coords_h = torch.arange(0, 1 - 1e-6, 1 / nb_patches_h) + fractional_coords_w = torch.arange(0, 1 - 1e-6, 1 / nb_patches_w) + + bucket_coords_h = torch.bucketize(fractional_coords_h, boundaries, right=True) + bucket_coords_w = torch.bucketize(fractional_coords_w, boundaries, right=True) + + pos_ids = (bucket_coords_h[:, None] * self.num_patches_per_side + bucket_coords_w).flatten() + position_ids[batch_idx][p_attn_mask.view(-1).cpu()] = pos_ids + + position_ids = position_ids.to(self.position_embedding.weight.device) + embeddings = embeddings + self.position_embedding(position_ids) + return embeddings + + +# Copied from transformers.models.siglip.modeling_siglip.SiglipAttention with Siglip->Idefics2Vision +class Idefics2VisionAttention(nn.Module): + """Multi-headed attention from 'Attention Is All You Need' paper""" + + # Copied from transformers.models.clip.modeling_clip.CLIPAttention.__init__ + def __init__(self, config): + super().__init__() + self.config = config + self.embed_dim = config.hidden_size + self.num_heads = config.num_attention_heads + self.head_dim = self.embed_dim // self.num_heads + if self.head_dim * self.num_heads != self.embed_dim: + raise ValueError( + f"embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim} and `num_heads`:" + f" {self.num_heads})." + ) + self.scale = self.head_dim**-0.5 + self.dropout = config.attention_dropout + + self.k_proj = nn.Linear(self.embed_dim, self.embed_dim) + self.v_proj = nn.Linear(self.embed_dim, self.embed_dim) + self.q_proj = nn.Linear(self.embed_dim, self.embed_dim) + self.out_proj = nn.Linear(self.embed_dim, self.embed_dim) + + # Ignore copy + self.is_causal = False + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor]]: + """Input shape: Batch x Time x Channel""" + + batch_size, q_len, _ = hidden_states.size() + + query_states = self.q_proj(hidden_states) + key_states = self.k_proj(hidden_states) + value_states = self.v_proj(hidden_states) + + query_states = query_states.view(batch_size, q_len, self.num_heads, self.head_dim).transpose(1, 2) + key_states = key_states.view(batch_size, q_len, self.num_heads, self.head_dim).transpose(1, 2) + value_states = value_states.view(batch_size, q_len, self.num_heads, self.head_dim).transpose(1, 2) + + k_v_seq_len = key_states.shape[-2] + attn_weights = torch.matmul(query_states, key_states.transpose(2, 3)) * self.scale + + if attn_weights.size() != (batch_size, self.num_heads, q_len, k_v_seq_len): + raise ValueError( + f"Attention weights should be of size {(batch_size, self.num_heads, q_len, k_v_seq_len)}, but is" + f" {attn_weights.size()}" + ) + + if attention_mask is not None: + if attention_mask.size() != (batch_size, 1, q_len, k_v_seq_len): + raise ValueError( + f"Attention mask should be of size {(batch_size, 1, q_len, k_v_seq_len)}, but is {attention_mask.size()}" + ) + attn_weights = attn_weights + attention_mask + + # upcast attention to fp32 + attn_weights = nn.functional.softmax(attn_weights, dim=-1, dtype=torch.float32).to(query_states.dtype) + attn_weights = nn.functional.dropout(attn_weights, p=self.dropout, training=self.training) + attn_output = torch.matmul(attn_weights, value_states) + + if attn_output.size() != (batch_size, self.num_heads, q_len, self.head_dim): + raise ValueError( + f"`attn_output` should be of size {(batch_size, self.num_heads, q_len, self.head_dim)}, but is" + f" {attn_output.size()}" + ) + + attn_output = attn_output.transpose(1, 2).contiguous() + attn_output = attn_output.reshape(batch_size, q_len, self.embed_dim) + + attn_output = self.out_proj(attn_output) + + return attn_output, attn_weights + + +class Idefics2VisionFlashAttention2(Idefics2VisionAttention): + """ + Idefics2Vision flash attention module. This module inherits from `Idefics2VisionAttention` as the weights of the module stays + untouched. The only required change would be on the forward pass where it needs to correctly call the public API of + flash attention and deal with padding tokens in case the input contains any of them. + """ + + def __init__(self, *args, **kwargs): + super().__init__(*args, **kwargs) + + # TODO: Should be removed once Flash Attention for RoCm is bumped to 2.1. + # flash_attn<2.1 generates top-left aligned causal mask, while what is needed here is bottom-right alignment, that was made default for flash_attn>=2.1. This attribute is used to handle this difference. Reference: https://github.com/Dao-AILab/flash-attention/releases/tag/v2.1.0. + # Beware that with flash_attn<2.1, using q_seqlen != k_seqlen (except for the case q_seqlen == 1) produces a wrong mask (top-left). + self._flash_attn_uses_top_left_mask = not is_flash_attn_greater_or_equal_2_10() + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.LongTensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_value: Optional[Cache] = None, + output_attentions: bool = False, + use_cache: bool = False, + **kwargs, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]: + output_attentions = False + + bsz, q_len, _ = hidden_states.size() + + query_states = self.q_proj(hidden_states) + key_states = self.k_proj(hidden_states) + value_states = self.v_proj(hidden_states) + + # Flash attention requires the input to have the shape + # batch_size x seq_length x head_dim x hidden_dim + # therefore we just need to keep the original shape + query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim) + key_states = key_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2) + value_states = value_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2) + + kv_seq_len = key_states.shape[-2] + if past_key_value is not None: + kv_seq_len += past_key_value.get_usable_length(kv_seq_len, self.layer_idx) + + # TODO: These transpose are quite inefficient but Flash Attention requires the layout [batch_size, sequence_length, num_heads, head_dim]. We would need to refactor the KV cache + # to be able to avoid many of these transpose/reshape/view. + key_states = key_states.transpose(1, 2) + value_states = value_states.transpose(1, 2) + + dropout_rate = self.dropout if self.training else 0.0 + + # In PEFT, usually we cast the layer norms in float32 for training stability reasons + # therefore the input hidden states gets silently casted in float32. Hence, we need + # cast them back in the correct dtype just to be sure everything works as expected. + # This might slowdown training & inference so it is recommended to not cast the LayerNorms + # in fp32. (Idefics2VisionRMSNorm handles it correctly) + + input_dtype = query_states.dtype + if input_dtype == torch.float32: + if torch.is_autocast_enabled(): + target_dtype = torch.get_autocast_gpu_dtype() + # Handle the case where the model is quantized + elif hasattr(self.config, "_pre_quantization_dtype"): + target_dtype = self.config._pre_quantization_dtype + else: + target_dtype = self.q_proj.weight.dtype + + logger.warning_once( + f"The input hidden states seems to be silently casted in float32, this might be related to" + f" the fact you have upcasted embedding or layer norm layers in float32. We will cast back the input in" + f" {target_dtype}." + ) + + query_states = query_states.to(target_dtype) + key_states = key_states.to(target_dtype) + value_states = value_states.to(target_dtype) + + attn_output = _flash_attention_forward( + query_states, + key_states, + value_states, + attention_mask, + q_len, + dropout=dropout_rate, + is_causal=self.is_causal, + use_top_left_mask=self._flash_attn_uses_top_left_mask, + ) + + attn_output = attn_output.reshape(bsz, q_len, self.embed_dim).contiguous() + attn_output = self.out_proj(attn_output) + + if not output_attentions: + attn_weights = None + + return attn_output, attn_weights + + +IDEFICS_VISION_ATTENTION_CLASSES = { + "eager": Idefics2VisionAttention, + "flash_attention_2": Idefics2VisionFlashAttention2, +} + + +# Copied from transformers.models.siglip.modeling_siglip.SiglipMLP with Siglip->Idefics2Vision +class Idefics2VisionMLP(nn.Module): + def __init__(self, config): + super().__init__() + self.config = config + self.activation_fn = ACT2FN[config.hidden_act] + self.fc1 = nn.Linear(config.hidden_size, config.intermediate_size) + self.fc2 = nn.Linear(config.intermediate_size, config.hidden_size) + + def forward(self, hidden_states: torch.Tensor) -> torch.Tensor: + hidden_states = self.fc1(hidden_states) + hidden_states = self.activation_fn(hidden_states) + hidden_states = self.fc2(hidden_states) + return hidden_states + + +class Idefics2MLP(nn.Module): + def __init__( + self, + hidden_size: int, + intermediate_size: int, + output_size: int, + hidden_act: str, + ): + super().__init__() + self.gate_proj = nn.Linear(hidden_size, intermediate_size, bias=False) + self.up_proj = nn.Linear(hidden_size, intermediate_size, bias=False) + self.down_proj = nn.Linear(intermediate_size, output_size, bias=False) + self.act_fn = ACT2FN[hidden_act] + + def forward(self, x): + return self.down_proj(self.act_fn(self.gate_proj(x)) * self.up_proj(x)) + + +# Copied from transformers.models.siglip.modeling_siglip.SiglipMultiheadAttentionPoolingHead with Siglip->Idefics2 +class Idefics2MultiheadAttentionPoolingHead(nn.Module): + """Multihead Attention Pooling.""" + + def __init__(self, config: Idefics2VisionConfig): + super().__init__() + + self.probe = nn.Parameter(torch.randn(1, 1, config.hidden_size)) + self.attention = torch.nn.MultiheadAttention(config.hidden_size, config.num_attention_heads, batch_first=True) + self.layernorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + # Ignore copy + self.mlp = Idefics2MLP( + hidden_size=config.hidden_size, + intermediate_size=config.intermediate_size, + hidden_act=config.hidden_act, + output_size=config.hidden_size, + ) + + def forward(self, hidden_state): + batch_size = hidden_state.shape[0] + probe = self.probe.repeat(batch_size, 1, 1) + + hidden_state = self.attention(probe, hidden_state, hidden_state)[0] + + residual = hidden_state + hidden_state = self.layernorm(hidden_state) + hidden_state = residual + self.mlp(hidden_state) + + return hidden_state[:, 0] + + +class Idefics2EncoderLayer(nn.Module): + def __init__(self, config: Idefics2VisionConfig): + super().__init__() + self.embed_dim = config.hidden_size + self.self_attn = IDEFICS_VISION_ATTENTION_CLASSES[config._attn_implementation](config) + self.layer_norm1 = nn.LayerNorm(self.embed_dim, eps=config.layer_norm_eps) + self.mlp = Idefics2VisionMLP(config) + self.layer_norm2 = nn.LayerNorm(self.embed_dim, eps=config.layer_norm_eps) + + # Copied from transformers.models.siglip.modeling_siglip.SiglipEncoderLayer.forward + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: torch.Tensor, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.FloatTensor]: + """ + Args: + hidden_states (`torch.FloatTensor`): + Input to the layer of shape `(batch, seq_len, embed_dim)`. + attention_mask (`torch.FloatTensor`): + Attention mask of shape `(batch, 1, q_len, k_v_seq_len)` where padding elements are indicated by very large negative values. + output_attentions (`bool`, *optional*, defaults to `False`): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + """ + residual = hidden_states + + hidden_states = self.layer_norm1(hidden_states) + hidden_states, attn_weights = self.self_attn( + hidden_states=hidden_states, + attention_mask=attention_mask, + output_attentions=output_attentions, + ) + hidden_states = residual + hidden_states + + residual = hidden_states + hidden_states = self.layer_norm2(hidden_states) + hidden_states = self.mlp(hidden_states) + hidden_states = residual + hidden_states + + outputs = (hidden_states,) + + if output_attentions: + outputs += (attn_weights,) + + return outputs + + +# Copied from transformers.models.siglip.modeling_siglip.SiglipEncoder with Siglip->Idefics2 +class Idefics2Encoder(nn.Module): + """ + Transformer encoder consisting of `config.num_hidden_layers` self attention layers. Each layer is a + [`Idefics2EncoderLayer`]. + + Args: + config: Idefics2Config + """ + + def __init__(self, config: Idefics2Config): + super().__init__() + self.config = config + self.layers = nn.ModuleList([Idefics2EncoderLayer(config) for _ in range(config.num_hidden_layers)]) + self.gradient_checkpointing = False + + # Ignore copy + def forward( + self, + inputs_embeds, + attention_mask: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, BaseModelOutput]: + r""" + Args: + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. + This is useful if you want more control over how to convert `input_ids` indices into associated vectors + than the model's internal embedding lookup matrix. + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors + for more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + encoder_states = () if output_hidden_states else None + all_attentions = () if output_attentions else None + + hidden_states = inputs_embeds + for encoder_layer in self.layers: + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + if self.gradient_checkpointing and self.training: + layer_outputs = self._gradient_checkpointing_func( + encoder_layer.__call__, + hidden_states, + attention_mask, + output_attentions, + ) + else: + layer_outputs = encoder_layer( + hidden_states, + attention_mask, + output_attentions=output_attentions, + ) + + hidden_states = layer_outputs[0] + + if output_attentions: + all_attentions = all_attentions + (layer_outputs[1],) + + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + + if not return_dict: + return tuple(v for v in [hidden_states, encoder_states, all_attentions] if v is not None) + return BaseModelOutput( + last_hidden_state=hidden_states, hidden_states=encoder_states, attentions=all_attentions + ) + + +IDEFICS2_START_DOCSTRING = r""" + This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the + library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads + etc.) + + This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. + Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage + and behavior. + + Parameters: + config ([`Idefics2Config`] or [`Idefics2VisionConfig`]): + Model configuration class with all the parameters of the model. Initializing with a config file does not + load the weights associated with the model, only the configuration. Check out the + [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + + +@add_start_docstrings( + "The bare Idefics2 Model outputting raw hidden-states without any specific head on top.", + IDEFICS2_START_DOCSTRING, +) +class Idefics2PreTrainedModel(PreTrainedModel): + config_class = Idefics2Config + base_model_prefix = "model" + supports_gradient_checkpointing = True + _no_split_modules = ["Idefics2VisionAttention", "Idefics2MLP", "Idefics2PerceiverLayer", "Idefics2DecoderLayer"] + _skip_keys_device_placement = "past_key_values" + _supports_flash_attn_2 = True + _supports_sdpa = True + _supports_cache_class = True + + def _init_weights(self, module): + std = ( + self.config.text_config.initializer_range + if hasattr(self.config, "initializer_range") + else self.config.text_config.initializer_range + ) + + if hasattr(module, "class_embedding"): + module.class_embedding.data.normal_(mean=0.0, std=std) + + if isinstance(module, (nn.Linear, nn.Conv2d)): + module.weight.data.normal_(mean=0.0, std=std) + if module.bias is not None: + module.bias.data.zero_() + elif isinstance(module, nn.Embedding): + module.weight.data.normal_(mean=0.0, std=std) + if module.padding_idx is not None: + module.weight.data[module.padding_idx].zero_() + + +IDEFICS2_INPUTS_DOCSTRING = r""" + Args: + pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, image_size, image_size)): + The tensors corresponding to the input images. Pixel values can be obtained using + [`AutoImageProcessor`]. See [`CLIPImageProcessor.__call__`] for details ([]`LlavaProcessor`] uses + [`CLIPImageProcessor`] for processing images). + pixel_attention_mask (`torch.Tensor` of shape `(batch_size, image_size, image_size)`, *optional*): + Mask to avoid performing attention on padding pixel indices. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. +""" + + +@add_start_docstrings( + """Idefics2 vision encoder model that returnss raw image embeddings.""", + IDEFICS2_START_DOCSTRING, +) +class Idefics2VisionTransformer(Idefics2PreTrainedModel): + _supports_sdpa = False + config_class = Idefics2VisionConfig + + def __init__(self, config: Idefics2VisionConfig): + super().__init__(config) + embed_dim = config.hidden_size + + self.config = config + self.embeddings = Idefics2VisionEmbeddings(config) + self.encoder = Idefics2Encoder(config) + self.post_layernorm = nn.LayerNorm(embed_dim, eps=config.layer_norm_eps) + self._use_flash_attention_2 = config._attn_implementation == "flash_attention_2" + + def get_input_embeddings(self): + return self.embeddings + + def set_input_embeddings(self, value): + self.embeddings = value + + def forward( + self, + pixel_values, + patch_attention_mask: Optional[torch.BoolTensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, BaseModelOutput]: + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + batch_size = pixel_values.size(0) + if patch_attention_mask is None: + patch_size = self.config.patch_size + patch_attention_mask = torch.ones( + ( + batch_size, + pixel_values.size(2) // patch_size, + pixel_values.size(3) // patch_size, + ) + ) + patch_attention_mask = patch_attention_mask.to(dtype=torch.bool, device=pixel_values.device) + + hidden_states = self.embeddings(pixel_values=pixel_values, patch_attention_mask=patch_attention_mask) + + patch_attention_mask = patch_attention_mask.view(batch_size, -1) + # The call to `_upad_input` in `_flash_attention_forward` is expensive + # So when the `patch_attention_mask` is full of 1s (i.e. attending to the whole sequence), + # avoiding passing the attention_mask, which is equivalent to attending to the full sequence + if not torch.any(~patch_attention_mask): + patch_attention_mask = None + elif not self._use_flash_attention_2: + patch_attention_mask = _prepare_4d_attention_mask(patch_attention_mask, hidden_states.dtype) + + encoder_outputs = self.encoder( + inputs_embeds=hidden_states, + attention_mask=patch_attention_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + + last_hidden_state = encoder_outputs[0] + last_hidden_state = self.post_layernorm(last_hidden_state) + + if not return_dict: + return (last_hidden_state,) + encoder_outputs[1:] + + return BaseModelOutput( + last_hidden_state=last_hidden_state, + hidden_states=encoder_outputs.hidden_states, + attentions=encoder_outputs.attentions, + ) + + +# Copied from transformers.models.llama.modeling_llama.repeat_kv +def repeat_kv(hidden_states: torch.Tensor, n_rep: int) -> torch.Tensor: + """ + This is the equivalent of torch.repeat_interleave(x, dim=1, repeats=n_rep). The hidden states go from (batch, + num_key_value_heads, seqlen, head_dim) to (batch, num_attention_heads, seqlen, head_dim) + """ + batch, num_key_value_heads, slen, head_dim = hidden_states.shape + if n_rep == 1: + return hidden_states + hidden_states = hidden_states[:, :, None, :, :].expand(batch, num_key_value_heads, n_rep, slen, head_dim) + return hidden_states.reshape(batch, num_key_value_heads * n_rep, slen, head_dim) + + +# Copied from transformers.models.llama.modeling_llama.LlamaRMSNorm with Llama->Idefics2 +class Idefics2RMSNorm(nn.Module): + def __init__(self, hidden_size, eps=1e-6): + """ + Idefics2RMSNorm is equivalent to T5LayerNorm + """ + super().__init__() + self.weight = nn.Parameter(torch.ones(hidden_size)) + self.variance_epsilon = eps + + def forward(self, hidden_states): + input_dtype = hidden_states.dtype + hidden_states = hidden_states.to(torch.float32) + variance = hidden_states.pow(2).mean(-1, keepdim=True) + hidden_states = hidden_states * torch.rsqrt(variance + self.variance_epsilon) + return self.weight * hidden_states.to(input_dtype) + + def extra_repr(self): + return f"{tuple(self.weight.shape)}, eps={self.variance_epsilon}" + + +class Idefics2PerceiverAttention(nn.Module): + def __init__(self, config, layer_idx: Optional[int] = None) -> None: + """Perceiver Cross-Attention Module --> let long-form inputs be `context`, resampled embeddings be `latents`""" + super().__init__() + + self.layer_idx = None + self.hidden_size = config.hidden_size + self.num_heads = config.resampler_n_heads + self.head_dim = config.resampler_head_dim + self.num_key_value_heads = config.num_key_value_heads + self.num_key_value_groups = self.num_heads // self.num_key_value_heads + self.attention_dropout = config.attention_dropout + + self.q_proj = nn.Linear(self.hidden_size, self.num_heads * self.head_dim, bias=False) + self.k_proj = nn.Linear(self.hidden_size, self.num_key_value_heads * self.head_dim, bias=False) + self.v_proj = nn.Linear(self.hidden_size, self.num_key_value_heads * self.head_dim, bias=False) + self.o_proj = nn.Linear(self.num_heads * self.head_dim, self.hidden_size, bias=False) + + self.is_causal = False + + def forward( + self, + latents: torch.Tensor, + context: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_value: Optional[Tuple[torch.Tensor]] = None, + output_attentions: bool = False, + use_cache: bool = False, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]: + """ + Runs Perceiver Self-Attention, with special (context, latents) appended along the `seq` dimension! + + Args: + latents (`torch.Tensor`): Tensor of shape [bsz, n_latents, embed_dim] representing fixed length latents to compress to. + context (`torch.Tensor`): Tensor of shape [bsz, seq, embed_dim] representing long-form context to resample. + attention_mask (`torch.Tensor`, *optional*): Tensor of shape [bsz, 1, seq, n_latents] representing attention mask. + position_ids (`torch.LongTensor`, *optional*): Tensor of shape [bsz, seq] representing position indices of each input token. + past_key_value (`Tuple[torch.Tensor]`, *optional*): Tuple of tensors containing cached key and value states. + output_attentions (`bool`, *optional*, defaults to `False`): Whether to return attention weights. + use_cache (`bool`, *optional*, defaults to `False`): Whether to use past_key_value for caching. + """ + bsz, q_len, _ = latents.size() + kv_seq_len = q_len + context.size()[1] + + hidden_states = torch.concat([context, latents], dim=-2) + + query_states = self.q_proj(latents) + key_states = self.k_proj(hidden_states) + value_states = self.v_proj(hidden_states) + + query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2) + key_states = key_states.view(bsz, kv_seq_len, self.num_key_value_heads, self.head_dim).transpose(1, 2) + value_states = value_states.view(bsz, kv_seq_len, self.num_key_value_heads, self.head_dim).transpose(1, 2) + + past_key_value = getattr(self, "past_key_value", past_key_value) + + if past_key_value is not None: + key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx) + + # repeat k/v heads if n_kv_heads < n_heads + key_states = repeat_kv(key_states, self.num_key_value_groups) + value_states = repeat_kv(value_states, self.num_key_value_groups) + + attn_weights = torch.matmul(query_states, key_states.transpose(2, 3)) / math.sqrt(self.head_dim) + + if attn_weights.size() != (bsz, self.num_heads, q_len, kv_seq_len): + raise ValueError( + f"Attention weights should be of size {(bsz, self.num_heads, q_len, kv_seq_len)}, but is" + f" {attn_weights.size()}" + ) + + if attention_mask is not None: + if attention_mask.size() != (bsz, 1, q_len, kv_seq_len): + raise ValueError( + f"Attention mask should be of size {(bsz, 1, q_len, kv_seq_len)}, but is {attention_mask.size()}" + ) + + attn_weights = attn_weights + attention_mask + + # upcast attention to fp32 + attn_weights = nn.functional.softmax(attn_weights, dim=-1, dtype=torch.float32).to(query_states.dtype) + attn_output = torch.matmul(attn_weights, value_states) + + if attn_output.size() != (bsz, self.num_heads, q_len, self.head_dim): + raise ValueError( + f"`attn_output` should be of size {(bsz, self.num_heads, q_len, self.head_dim)}, but is" + f" {attn_output.size()}" + ) + + attn_output = attn_output.transpose(1, 2).contiguous() + attn_output = attn_output.reshape(bsz, q_len, self.num_heads * self.head_dim) + + attn_output = self.o_proj(attn_output) + + if not output_attentions: + attn_weights = None + + return attn_output, attn_weights, past_key_value + + +# NO LONGER EXIST Copied from transformers.models.mistral.modeling_mistral.MistralFlashAttention2 with MistralAttention->Idefics2PerceiverAttention,MistralFlashAttention->Idefics2PerceiverFlashAttention,Mistral->Idefics2 +# TODO cyril: modular +class Idefics2PerceiverFlashAttention2(Idefics2PerceiverAttention): + """ + Idefics2 flash attention module. This module inherits from `Idefics2PerceiverAttention` as the weights of the module stays + untouched. The only required change would be on the forward pass where it needs to correctly call the public API of + flash attention and deal with padding tokens in case the input contains any of them. + """ + + def __init__(self, *args, **kwargs): + super().__init__(*args, **kwargs) + + # TODO: Should be removed once Flash Attention for RoCm is bumped to 2.1. + # flash_attn<2.1 generates top-left aligned causal mask, while what is needed here is bottom-right alignment, that was made default for flash_attn>=2.1. This attribute is used to handle this difference. Reference: https://github.com/Dao-AILab/flash-attention/releases/tag/v2.1.0. + # Beware that with flash_attn<2.1, using q_seqlen != k_seqlen (except for the case q_seqlen == 1) produces a wrong mask (top-left). + self._flash_attn_uses_top_left_mask = not is_flash_attn_greater_or_equal_2_10() + + # Ignore copy + def forward( + self, + latents: torch.Tensor, + context: torch.Tensor, + attention_mask: Optional[torch.LongTensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_value: Optional[Cache] = None, + output_attentions: bool = False, + use_cache: bool = False, + **kwargs, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]: + bsz, q_len, _ = latents.size() + kv_seq_len = q_len + context.size()[1] + + # Query, Key, Value Projections --> Note that in Flamingo, latents are *concatenated* with context prior to attn! + # Note: This results in queries w/ `seq = n_latents`, and keys, values with `seq = len(context) + n_latents` + query_states = self.q_proj(latents) + key_states = self.k_proj(torch.cat([context, latents], dim=-2)) + value_states = self.v_proj(torch.cat([context, latents], dim=-2)) + + query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim) + key_states = key_states.view(bsz, kv_seq_len, self.num_key_value_heads, self.head_dim).transpose(1, 2) + value_states = value_states.view(bsz, kv_seq_len, self.num_key_value_heads, self.head_dim).transpose(1, 2) + + kv_seq_len = key_states.shape[-2] + if past_key_value is not None: + kv_seq_len += past_key_value[0].shape[-2] + + if past_key_value is not None: + # Activate slicing cache only if the config has a value `sliding_windows` attribute + if hasattr(self.config, "sliding_window") and kv_seq_len > self.config.sliding_window: + slicing_tokens = kv_seq_len - self.config.sliding_window + + past_key = past_key_value[0] + past_value = past_key_value[1] + + past_key = past_key[:, :, slicing_tokens:, :].contiguous() + past_value = past_value[:, :, slicing_tokens:, :].contiguous() + + if past_key.shape[-2] != self.config.sliding_window - 1: + raise ValueError( + "past key must have a shape of (`batch_size, num_heads, self.config.sliding_window-1," + f" head_dim`), got {past_key.shape}" + ) + + past_key_value = (past_key, past_value) + + if attention_mask is not None: + attention_mask = attention_mask[:, slicing_tokens:] + attention_mask = torch.cat([attention_mask, torch.ones_like(attention_mask[:, -1:])], dim=-1) + + key_states = torch.cat([past_key_value[0], key_states], dim=2) + value_states = torch.cat([past_key_value[1], value_states], dim=2) + + past_key_value = (key_states, value_states) if use_cache else None + + # repeat k/v heads if n_kv_heads < n_heads + key_states = repeat_kv(key_states, self.num_key_value_groups) + value_states = repeat_kv(value_states, self.num_key_value_groups) + dropout_rate = 0.0 if not self.training else self.attention_dropout + + # In PEFT, usually we cast the layer norms in float32 for training stability reasons + # therefore the input hidden states gets silently casted in float32. Hence, we need + # cast them back in float16 just to be sure everything works as expected. + input_dtype = query_states.dtype + if input_dtype == torch.float32: + if torch.is_autocast_enabled(): + target_dtype = torch.get_autocast_gpu_dtype() + # Handle the case where the model is quantized + elif hasattr(self.config, "_pre_quantization_dtype"): + target_dtype = self.config._pre_quantization_dtype + else: + target_dtype = self.q_proj.weight.dtype + + logger.warning_once( + f"The input hidden states seems to be silently casted in float32, this might be related to" + f" the fact you have upcasted embedding or layer norm layers in float32. We will cast back the input in" + f" {target_dtype}." + ) + + query_states = query_states.to(target_dtype) + key_states = key_states.to(target_dtype) + value_states = value_states.to(target_dtype) + + # Reashape to the expected shape for Flash Attention + key_states = key_states.transpose(1, 2) + value_states = value_states.transpose(1, 2) + + attn_output = _flash_attention_forward( + query_states, + key_states, + value_states, + attention_mask, + q_len, + dropout=dropout_rate, + sliding_window=None, + is_causal=self.is_causal, + use_top_left_mask=self._flash_attn_uses_top_left_mask, + ) + + attn_output = attn_output.reshape(bsz, q_len, self.num_heads * self.head_dim).contiguous() + attn_output = self.o_proj(attn_output) + + if not output_attentions: + attn_weights = None + + return attn_output, attn_weights, past_key_value + + +IDEFICS2_PERCEIVER_ATTENTION_CLASSES = { + "eager": Idefics2PerceiverAttention, + "flash_attention_2": Idefics2PerceiverFlashAttention2, +} + + +class Idefics2PerceiverLayer(nn.Module): + def __init__(self, config, layer_idx: int): + super().__init__() + self.hidden_size = config.hidden_size + self.n_latents = config.resampler_n_latents + self.depth = config.resampler_depth + self.rms_norm_eps = config.rms_norm_eps + + self.input_latents_norm = Idefics2RMSNorm(self.hidden_size, eps=self.rms_norm_eps) + self.input_context_norm = Idefics2RMSNorm(self.hidden_size, eps=self.rms_norm_eps) + self.self_attn = IDEFICS2_PERCEIVER_ATTENTION_CLASSES[config._attn_implementation](config, layer_idx=layer_idx) + self.post_attention_layernorm = Idefics2RMSNorm(self.hidden_size, eps=self.rms_norm_eps) + self.mlp = Idefics2MLP( + hidden_size=config.hidden_size, + intermediate_size=config.hidden_size * 4, + output_size=config.hidden_size, + hidden_act=config.hidden_act, + ) + + def forward( + self, + latents: torch.Tensor, + context: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_value: Optional[Tuple[torch.Tensor]] = None, + output_attentions: Optional[bool] = False, + use_cache: Optional[bool] = False, + **kwargs, + ) -> Tuple[torch.FloatTensor, Optional[Tuple[torch.FloatTensor, torch.FloatTensor]]]: + """ + Args: + latents (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)` + context (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)` + attention_mask (`torch.FloatTensor`, *optional*): attention mask of size + `(batch, sequence_length)` where padding elements are indicated by 0. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding + (see `past_key_values`). + past_key_value (`Tuple(torch.FloatTensor)`, *optional*): cached past key and value projection states + """ + residual = latents + + latents = self.input_latents_norm(latents) + context = self.input_context_norm(context) + + latents, self_attn_weights, present_key_value = self.self_attn( + latents=latents, + context=context, + attention_mask=attention_mask, + ) + latents = residual + latents + residual = latents + + latents = self.post_attention_layernorm(latents) + latents = self.mlp(latents) + latents = residual + latents + + outputs = (latents,) + + if output_attentions: + outputs += (self_attn_weights,) + + if use_cache: + outputs += (present_key_value,) + + return outputs + + +IDEFICS2_INPUTS_DOCSTRING = r""" + Args: + context (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_dim)`): + The hidden states of the image after vision encoder and modality projection. + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) +""" + + +@add_start_docstrings( + "Idefics2 perceiver resampler model that performs `depth` blocks of cross-attention with a fixed ", + "`n_latents` inputs to decrease embedding sequence length. The Resampler acts as a form of learned pooling and ", + "is derived from [Perceiver: General Perception with Iterative Attention](https://arxiv.org/abs/2103.03206)", + IDEFICS2_START_DOCSTRING, +) +class Idefics2PerceiverResampler(Idefics2PreTrainedModel): + _supports_sdpa = False + config_class = Idefics2PerceiverConfig + + def __init__(self, config) -> None: + super().__init__(config) + self.hidden_size = config.hidden_size + self.hidden_act = config.hidden_act + self.n_latents = config.resampler_n_latents + self.depth = config.resampler_depth + self.rms_norm_eps = config.rms_norm_eps + + # Create Latents for Perceiver + self.latents = nn.Parameter(torch.ones(self.n_latents, self.hidden_size)) + + # Create Transformer Blocks + self.layers = nn.ModuleList([Idefics2PerceiverLayer(config, idx) for idx in range(self.depth)]) + self.norm = Idefics2RMSNorm(self.hidden_size, eps=self.rms_norm_eps) + + self._use_flash_attention_2 = config._attn_implementation == "flash_attention_2" + + def forward( + self, + context: torch.Tensor, + attention_mask: torch.Tensor, + ) -> torch.Tensor: + # seq embed -> bsz seq embed + latents = self.latents.unsqueeze(0).expand((context.shape[0], *self.latents.size())) + + latent_attention_mask = torch.ones( + (attention_mask.size(0), latents.size(1)), dtype=attention_mask.dtype, device=attention_mask.device + ) + attention_mask = torch.cat([attention_mask, latent_attention_mask], dim=-1) + attention_mask = ( + _prepare_4d_attention_mask(attention_mask, latents.dtype, tgt_len=self.n_latents) + if not self._use_flash_attention_2 + else attention_mask + ) + + compressed_context = latents + for perceiver_layer in self.layers: + layer_outputs = perceiver_layer( + compressed_context, + context, + attention_mask=attention_mask, + position_ids=None, + past_key_value=None, + output_attentions=False, + use_cache=False, + ) + + compressed_context = layer_outputs[0] + + compressed_context = self.norm(compressed_context) + + return compressed_context + + +class Idefics2Connector(nn.Module): + def __init__(self, config): + super().__init__() + self.modality_projection = Idefics2MLP( + hidden_size=config.vision_config.hidden_size, + intermediate_size=config.text_config.intermediate_size, + output_size=config.text_config.hidden_size, + hidden_act=config.text_config.hidden_act, + ) + self.perceiver_resampler = Idefics2PerceiverResampler._from_config(config.perceiver_config) + + def forward(self, image_hidden_states, attention_mask): + image_hidden_states = self.modality_projection(image_hidden_states) + image_hidden_states = self.perceiver_resampler(context=image_hidden_states, attention_mask=attention_mask) + return image_hidden_states + + +IDEFICS2_INPUTS_DOCSTRING = r""" + Args: + input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`): + Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide + it. + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for details. + + [What are input IDs?](../glossary#input-ids) + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for details. + + If `past_key_values` is used, optionally only the last `decoder_input_ids` have to be input (see + `past_key_values`). + + If you want to change padding behavior, you should read [`modeling_opt._prepare_decoder_attention_mask`] + and modify to your needs. See diagram 1 in [the paper](https://arxiv.org/abs/1910.13461) for more + information on the default strategy. + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + position_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0, + config.n_positions - 1]`. [What are position IDs?](../glossary#position-ids) + past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape + `(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of shape + `(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)`. + + Contains pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention + blocks) that can be used (see `past_key_values` input) to speed up sequential decoding. + + If `past_key_values` are used, the user can optionally input only the last `decoder_input_ids` (those that + don't have their past key value states given to this model) of shape `(batch_size, 1)` instead of all + `decoder_input_ids` of shape `(batch_size, sequence_length)`. + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This + is useful if you want more control over how to convert `input_ids` indices into associated vectors than the + model's internal embedding lookup matrix. + pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, image_size, image_size)): + The tensors corresponding to the input images. Pixel values can be obtained using + [`AutoImageProcessor`]. See [`CLIPImageProcessor.__call__`] for details ([]`LlavaProcessor`] uses + [`CLIPImageProcessor`] for processing images). + pixel_attention_mask (`torch.Tensor` of shape `(batch_size, image_size, image_size)`, *optional*): + Mask to avoid performing attention on padding pixel indices. + image_hidden_states (`torch.FloatTensor` of shape `(batch_size, num_channels, image_size, image_size)`): + The hidden states of the image encoder after modality projection and perceiver resampling. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + cache_position (`torch.LongTensor` of shape `(sequence_length)`, *optional*): + Indices depicting the position of the input sequence tokens in the sequence. Contrarily to `position_ids`, + this tensor is not affected by padding. It is used to update the cache in the correct position and to infer + the complete sequence length. +""" + + +@add_start_docstrings( + """Idefics2 model consisting of a SIGLIP vision encoder and Mistral language decoder""", + IDEFICS2_START_DOCSTRING, +) +class Idefics2Model(Idefics2PreTrainedModel): + def __init__(self, config: Idefics2Config): + super().__init__(config) + self.padding_idx = self.config.text_config.pad_token_id + self.vocab_size = self.config.text_config.vocab_size + + self.vision_model = Idefics2VisionTransformer._from_config(config.vision_config) + self.connector = Idefics2Connector(config) + self.text_model = AutoModel.from_config(config.text_config) + + self.image_seq_len = config.perceiver_config.resampler_n_latents + self.image_token_id = self.config.image_token_id + + self._use_flash_attention_2 = config.text_config._attn_implementation == "flash_attention_2" + + self.post_init() + + def enable_input_require_grads(self): + """ + Enables the gradients for the input embeddings. + + This is useful for lora when using gradient checkpointing. + c.f. https://github.com/huggingface/peft/issues/1402#issuecomment-1913675032 + + Override to set output.requires_grad = True for both the decoder's and vision model's embeddings. + """ + + def get_lowest_module(module): + if len(list(module.children())) == 0: + # If the module has no children, it is a leaf module (e.g., Linear, Conv2d, etc.) + return module + else: + # Recursively call the function on each child module + return get_lowest_module(list(module.children())[0]) + + def make_inputs_require_grads(module, input, output): + output.requires_grad_(True) + + self._text_require_grads_hook = self.get_input_embeddings().register_forward_hook(make_inputs_require_grads) + self._vision_require_grads_hook = get_lowest_module(self.vision_model).register_forward_hook( + make_inputs_require_grads + ) + + def disable_input_require_grads(self): + self._text_require_grads_hook.remove() + self._vision_require_grads_hook.remove() + + def get_input_embeddings(self): + return self.text_model.get_input_embeddings() + + def set_input_embeddings(self, value): + self.text_model.set_input_embeddings(value) + + def inputs_merger( + self, + input_ids: torch.LongTensor, + inputs_embeds: Optional[torch.Tensor], + image_hidden_states: Optional[torch.Tensor], + ): + """ + This method aims at merging the token embeddings with the image hidden states into one single sequence of vectors that are fed to the transformer LM. + The merging happens as follows: + - The text token sequence is: `tok_1 tok_2 tok_3 ... tok_4`. + - We get the image hidden states for the image through the vision encoder (and potentially the perceiver), and that hidden state is then projected into the text embedding space. + We thus have a sequence of image hidden states of size (1, image_seq_len, hidden_dim), where 1 is for batch_size of 1 image and hidden_dim is the hidden_dim of the LM transformer. + - The merging happens so that we obtain the following sequence: `vector_tok_1 vector_tok_2 vector_tok_3 vector_fake_tok_around_image {sequence of image_seq_len image hidden states} vector_fake_toke_around_image vector_tok_4`. That sequence is fed to the LM. + - To fit the format of that sequence, `input_ids`, `input_embeds`, `attention_mask` are all 3 adapted to insert the image hidden states. + """ + num_images, _, vision_hidden_size = image_hidden_states.shape + special_image_token_mask = input_ids == self.image_token_id + new_inputs_embeds = inputs_embeds.clone() + reshaped_image_hidden_states = image_hidden_states.view(-1, vision_hidden_size) + new_inputs_embeds[special_image_token_mask] = reshaped_image_hidden_states.to(new_inputs_embeds.device) + return new_inputs_embeds + + @add_start_docstrings_to_model_forward( + """ + Inputs fed to the model can have an arbitrary number of images. To account for this, pixel_values fed to + the model have image padding -> (batch_size, max_num_images, 3, max_heights, max_widths) where + max_num_images is the maximum number of images among the batch_size samples in the batch. + + Padding images are not needed beyond padding the pixel_values at the entrance of the model. + For efficiency, we only pass through the vision_model's forward the real images by + discarding the padding images i.e. pixel_values of size (image_batch_size, 3, height, width) where + image_batch_size would be 7 when num_images_per_sample=[1, 3, 1, 2] and max_num_images would be 3. + """, + IDEFICS2_INPUTS_DOCSTRING, + ) + def forward( + self, + input_ids: torch.LongTensor = None, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_values: Optional[List[torch.FloatTensor]] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + pixel_values: Optional[torch.FloatTensor] = None, + pixel_attention_mask: Optional[torch.BoolTensor] = None, + image_hidden_states: Optional[torch.FloatTensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + cache_position: Optional[torch.LongTensor] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, Idefics2BaseModelOutputWithPast]: + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + use_cache = use_cache if use_cache is not None else self.config.use_cache + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if self.training and self.text_model.gradient_checkpointing and use_cache: + logger.warning_once( + "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..." + ) + use_cache = False + + # retrieve input_ids and inputs_embeds + if input_ids is not None: + batch_size, seq_length = input_ids.shape + elif inputs_embeds is not None: + batch_size, seq_length, _ = inputs_embeds.shape + else: + raise ValueError("You have to specify either input_ids or inputs_embeds") + + past_seen_tokens = 0 + # kept for BC (non `Cache` `past_key_values` inputs) + return_legacy_cache = False + if use_cache: + if not isinstance(past_key_values, Cache): + return_legacy_cache = True + if past_key_values is None: + past_key_values = DynamicCache() + else: + past_key_values = DynamicCache.from_legacy_cache(past_key_values) + logger.warning_once( + "We detected that you are passing `past_key_values` as a tuple of tuples. This is deprecated and " + "will be removed in v4.47. Please convert your cache or use an appropriate `Cache` class " + "(https://huggingface.co/docs/transformers/kv_cache#legacy-cache-format)" + ) + past_seen_tokens = past_key_values.get_seq_length() + + if inputs_embeds is not None and input_ids is None and past_seen_tokens == 0: + raise ValueError("When first calling the model, if input_embeds are passed, input_ids should not be None.") + + if inputs_embeds is None: + inputs_embeds = self.text_model.get_input_embeddings()(input_ids) + + # START VISUAL INPUTS INTEGRATION + if pixel_values is not None and image_hidden_states is not None: + raise ValueError("You cannot specify both pixel_values and image_hidden_states at the same time") + elif pixel_values is not None: + batch_size, num_images, num_channels, height, width = pixel_values.shape + pixel_values = pixel_values.to(dtype=self.dtype) # fp16 compatibility + pixel_values = pixel_values.view(batch_size * num_images, *pixel_values.shape[2:]) + + # Remove padding images - padding images are full 0. + nb_values_per_image = pixel_values.shape[1:].numel() + real_images_inds = (pixel_values == 0.0).sum(dim=(-1, -2, -3)) != nb_values_per_image + pixel_values = pixel_values[real_images_inds].contiguous() + + # Handle the vision attention mask + if pixel_attention_mask is None: + pixel_attention_mask = torch.ones( + size=(pixel_values.size(0), pixel_values.size(2), pixel_values.size(3)), + dtype=torch.bool, + device=pixel_values.device, + ) + else: + # Remove padding images from the mask/pP p + pixel_attention_mask = pixel_attention_mask.view( + batch_size * num_images, *pixel_attention_mask.shape[2:] + ) + pixel_attention_mask = pixel_attention_mask[real_images_inds].contiguous() + + patch_size = self.config.vision_config.patch_size + patches_subgrid = pixel_attention_mask.unfold(dimension=1, size=patch_size, step=patch_size) + patches_subgrid = patches_subgrid.unfold(dimension=2, size=patch_size, step=patch_size) + patch_attention_mask = (patches_subgrid.sum(dim=(-1, -2)) == patch_size * patch_size).bool() + + # Get sequence from the vision encoder + image_hidden_states = self.vision_model( + pixel_values=pixel_values, + patch_attention_mask=patch_attention_mask, + ).last_hidden_state + + # Modality projection & resampling + image_hidden_states = self.connector( + image_hidden_states, attention_mask=patch_attention_mask.view(pixel_values.size(0), -1) + ) + + elif image_hidden_states is not None: + image_hidden_states = image_hidden_states.to(dtype=self.dtype, device=input_ids.device) + + if past_seen_tokens == 0 and inputs_embeds is not None and image_hidden_states is not None: + # When we generate, we don't want to replace the potential image_token_id that we generated by images + # that simply don't exist + inputs_embeds = self.inputs_merger( + input_ids=input_ids, + inputs_embeds=inputs_embeds, + image_hidden_states=image_hidden_states, + ) + + outputs = self.text_model( + inputs_embeds=inputs_embeds, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_values=past_key_values, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + cache_position=cache_position, + return_dict=return_dict, + ) + + if return_legacy_cache and use_cache: + outputs.past_key_values = outputs.past_key_values.to_legacy_cache() + + if not return_dict: + return tuple(v for v in [*outputs, image_hidden_states] if v is not None) + + return Idefics2BaseModelOutputWithPast( + last_hidden_state=outputs.last_hidden_state, + past_key_values=outputs.past_key_values, + hidden_states=outputs.hidden_states, + attentions=outputs.attentions, + image_hidden_states=image_hidden_states, + ) + + +@add_start_docstrings( + """The Idefics2 Model with a language modeling head. It is made up a SigLIP vision encoder, with a language modeling head on top. """, + IDEFICS2_START_DOCSTRING, +) +class Idefics2ForConditionalGeneration(Idefics2PreTrainedModel, GenerationMixin): + _tied_weights_keys = ["lm_head.weight"] + + def __init__(self, config): + super().__init__(config) + self.model = Idefics2Model(config) + self.image_token_id = self.config.image_token_id + + self.lm_head = nn.Linear(config.text_config.hidden_size, config.text_config.vocab_size, bias=False) + self.vocab_size = config.text_config.vocab_size + + # Initialize weights and apply final processing + self.post_init() + + def enable_input_require_grads(self): + """ + Enables the gradients for the input embeddings. This is useful for fine-tuning adapter weights while keeping + the model weights fixed. + """ + + def make_inputs_require_grads(module, input, output): + output.requires_grad_(True) + + self._text_require_grads_hook = self.get_input_embeddings().register_forward_hook(make_inputs_require_grads) + self._vision_require_grads_hook = self.model.vision_model.get_input_embeddings().register_forward_hook( + make_inputs_require_grads + ) + + def disable_input_require_grads(self): + self._text_require_grads_hook.remove() + self._vision_require_grads_hook.remove() + + def get_input_embeddings(self): + return self.model.text_model.get_input_embeddings() + + def set_input_embeddings(self, value): + self.model.text_model.set_input_embeddings(value) + + def get_output_embeddings(self): + return self.lm_head + + def set_output_embeddings(self, new_embeddings): + self.lm_head = new_embeddings + + @deprecate_kwarg("num_logits_to_keep", version="4.50", new_name="logits_to_keep") + @add_start_docstrings_to_model_forward(IDEFICS2_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=Idefics2CausalLMOutputWithPast, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: torch.LongTensor = None, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_values: Optional[List[torch.FloatTensor]] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + pixel_values: Optional[torch.FloatTensor] = None, + pixel_attention_mask: Optional[torch.BoolTensor] = None, + image_hidden_states: Optional[torch.FloatTensor] = None, + labels: Optional[torch.LongTensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + cache_position: Optional[torch.LongTensor] = None, + logits_to_keep: Union[int, torch.Tensor] = 0, + ) -> Union[Tuple, Idefics2CausalLMOutputWithPast]: + r""" + labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Labels for computing the masked language modeling loss. Indices should either be in `[0, ..., + config.vocab_size]` or `model.image_token_id` (where `model` is your instance of `Idefics2ForConditionalGeneration`). + Tokens with indices set to `model.image_token_id` are ignored (masked), the loss is only + computed for the tokens with labels in `[0, ..., config.vocab_size]`. + + logits_to_keep (`int` or `torch.Tensor`, *optional*): + If an `int`, compute logits for the last `logits_to_keep` tokens. If `0`, calculate logits for all + `input_ids` (special case). Only last token logits are needed for generation, and calculating them only for that + token can save memory, which becomes pretty significant for long sequences or large vocabulary size. + If a `torch.Tensor`, must be 1D corresponding to the indices to keep in the sequence length dimension. + This is useful when using packed tensor format (single dimension for batch and sequence length). + + Returns: + + Example: + + ```python + >>> import requests + >>> import torch + >>> from PIL import Image + >>> from io import BytesIO + + >>> from transformers import AutoProcessor, AutoModelForVision2Seq + >>> from transformers.image_utils import load_image + + >>> # Note that passing the image urls (instead of the actual pil images) to the processor is also possible + >>> image1 = load_image("https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg") + >>> image2 = load_image("https://cdn.britannica.com/59/94459-050-DBA42467/Skyline-Chicago.jpg") + >>> image3 = load_image("https://cdn.britannica.com/68/170868-050-8DDE8263/Golden-Gate-Bridge-San-Francisco.jpg") + + >>> processor = AutoProcessor.from_pretrained("HuggingFaceM4/idefics2-8b-base") + >>> model = AutoModelForVision2Seq.from_pretrained("HuggingFaceM4/idefics2-8b-base", device_map="auto") + + >>> BAD_WORDS_IDS = processor.tokenizer(["", ""], add_special_tokens=False).input_ids + >>> EOS_WORDS_IDS = [processor.tokenizer.eos_token_id] + + >>> # Create inputs + >>> prompts = [ + ... "In this image, we can see the city of New York, and more specifically the Statue of Liberty.In this image,", + ... "In which city is that bridge located?", + ... ] + >>> images = [[image1, image2], [image3]] + >>> inputs = processor(images=images, text=prompts, padding=True, return_tensors="pt").to("cuda") + + >>> # Generate + >>> generated_ids = model.generate(**inputs, bad_words_ids=BAD_WORDS_IDS, max_new_tokens=20) + >>> generated_texts = processor.batch_decode(generated_ids, skip_special_tokens=True) + + >>> print(generated_texts) + ['In this image, we can see the city of New York, and more specifically the Statue of Liberty. In this image, we can see the city of New York, and more specifically the Statue of Liberty.\n\n', 'In which city is that bridge located?\n\nThe bridge is located in the city of Pittsburgh, Pennsylvania.\n\n\nThe bridge is'] + ```""" + + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + # decoder outputs consists of (dec_features, layer_state, dec_hidden, dec_attn) + outputs = self.model( + input_ids=input_ids, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_values=past_key_values, + inputs_embeds=inputs_embeds, + pixel_values=pixel_values, + pixel_attention_mask=pixel_attention_mask, + image_hidden_states=image_hidden_states, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + cache_position=cache_position, + return_dict=return_dict, + ) + + hidden_states = outputs[0] + # Only compute necessary logits, and do not upcast them to float if we are not computing the loss + slice_indices = slice(-logits_to_keep, None) if isinstance(logits_to_keep, int) else logits_to_keep + logits = self.lm_head(hidden_states[:, slice_indices, :]) + + loss = None + if labels is not None: + # Upcast to float if we need to compute the loss to avoid potential precision issues + logits = logits.float() + labels = labels.to(logits.device) + # Shift so that tokens < n predict n + if attention_mask is not None: + # we use the input attention mask to shift the logits and labels, because it is 2D. + # we also crop attn mask in case it is longer, which happens in PrefixTuning with peft + shift_attention_mask = attention_mask[:, -(logits.shape[1] - 1) :].to(logits.device) + shift_logits = logits[..., :-1, :][shift_attention_mask != 0].contiguous() + shift_labels = labels[..., 1:][shift_attention_mask != 0].contiguous() + else: + shift_logits = logits[..., :-1, :].contiguous() + shift_labels = labels[..., 1:].contiguous() + # Flatten the tokens + loss_fct = CrossEntropyLoss() + loss = loss_fct(shift_logits.view(-1, shift_logits.size(-1)), shift_labels.view(-1)) + + if not return_dict: + output = (logits,) + outputs[1:] + return (loss,) + output if loss is not None else output + + return Idefics2CausalLMOutputWithPast( + loss=loss, + logits=logits, + past_key_values=outputs.past_key_values, + hidden_states=outputs.hidden_states, + attentions=outputs.attentions, + image_hidden_states=outputs.image_hidden_states, + ) + + def prepare_inputs_for_generation( + self, + input_ids, + past_key_values=None, + attention_mask=None, + inputs_embeds=None, + cache_position=None, + pixel_values=None, + pixel_attention_mask=None, + image_hidden_states=None, + logits_to_keep=None, + **kwargs, + ): + # Overwritten -- there are mutually exclusive inputs (if the logic to make `image_hidden_states` take + # precedence is moved to the model, we can remove this fn) + + model_inputs = super().prepare_inputs_for_generation( + input_ids, + past_key_values=past_key_values, + attention_mask=attention_mask, + inputs_embeds=inputs_embeds, + cache_position=cache_position, + pixel_values=pixel_values, + pixel_attention_mask=pixel_attention_mask, + image_hidden_states=image_hidden_states, + logits_to_keep=logits_to_keep, + **kwargs, + ) + + # if `inputs_embeds` are passed, we only want to use them in the 1st generation step + # but IDEFICS requires both ids and embeds to be present + if inputs_embeds is not None and cache_position[0] == 0: + model_inputs["input_ids"] = input_ids + + if image_hidden_states is not None: + model_inputs["pixel_values"] = None + model_inputs["pixel_attention_mask"] = None + + return model_inputs + + def _update_model_kwargs_for_generation(self, outputs, model_kwargs, is_encoder_decoder, **kwargs): + model_kwargs = super()._update_model_kwargs_for_generation( + outputs=outputs, + model_kwargs=model_kwargs, + is_encoder_decoder=is_encoder_decoder, + **kwargs, + ) + # Get the precomputed image_hidden_states + model_kwargs["image_hidden_states"] = outputs.image_hidden_states + return model_kwargs + + @staticmethod + # Copied from transformers.models.opt.modeling_opt.OPTForCausalLM._reorder_cache + def _reorder_cache(past_key_values, beam_idx): + reordered_past = () + for layer_past in past_key_values: + reordered_past += ( + tuple(past_state.index_select(0, beam_idx.to(past_state.device)) for past_state in layer_past), + ) + return reordered_past + + +__all__ = ["Idefics2ForConditionalGeneration", "Idefics2PreTrainedModel", "Idefics2Model"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/processing_idefics2.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/processing_idefics2.py new file mode 100644 index 0000000000000000000000000000000000000000..9502f1e9582970a37110b144319fd2a04cdbade1 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics2/processing_idefics2.py @@ -0,0 +1,283 @@ +# coding=utf-8 +# Copyright 2024 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Processor class for IDEFICS2. +""" + +from itertools import accumulate +from typing import TYPE_CHECKING, List, Optional, Union + +from ...feature_extraction_utils import BatchFeature +from ...image_utils import ImageInput, is_valid_image, load_image +from ...processing_utils import ( + ImagesKwargs, + ProcessingKwargs, + ProcessorMixin, + Unpack, + _validate_images_text_input_order, +) +from ...tokenization_utils_base import AddedToken, TextInput +from ...utils import logging + + +if TYPE_CHECKING: + from ...tokenization_utils_base import PreTokenizedInput + + +logger = logging.get_logger(__name__) + + +def is_url(val) -> bool: + return isinstance(val, str) and val.startswith("http") + + +def is_image_or_image_url(elem): + return is_url(elem) or is_valid_image(elem) + + +class Idefics2ImagesKwargs(ImagesKwargs, total=False): + image_seq_len: Optional[int] + + +class Idefics2ProcessorKwargs(ProcessingKwargs, total=False): + images_kwargs: Idefics2ImagesKwargs + + _defaults = { + "text_kwargs": { + "add_special_tokens": True, + "padding": False, + "is_split_into_words": False, + }, + "images_kwargs": {}, + } + + +class Idefics2Processor(ProcessorMixin): + r""" + Constructs a IDEFICS2 processor which wraps a LLama tokenizer and IDEFICS2 image processor into a single processor. + + [`IdeficsProcessor`] offers all the functionalities of [`Idefics2ImageProcessor`] and [`LlamaTokenizerFast`]. See + the docstring of [`~IdeficsProcessor.__call__`] and [`~IdeficsProcessor.decode`] for more information. + + Args: + image_processor (`Idefics2ImageProcessor`): + An instance of [`Idefics2ImageProcessor`]. The image processor is a required input. + tokenizer (`PreTrainedTokenizerBase`, *optional*): + An instance of [`PreTrainedTokenizerBase`]. This should correspond with the model's text model. The tokenizer is a required input. + image_seq_len (`int`, *optional*, defaults to 64): + The length of the image sequence i.e. the number of tokens per image in the input. + This parameter is used to build the string from the input prompt and image tokens and should match the + config.perceiver_config.resampler_n_latents value for the model used. + chat_template (`str`, *optional*): A Jinja template which will be used to convert lists of messages + in a chat into a tokenizable string. + """ + + attributes = ["image_processor", "tokenizer"] + valid_kwargs = ["image_seq_len", "chat_template"] + image_processor_class = "Idefics2ImageProcessor" + tokenizer_class = "AutoTokenizer" + + def __init__(self, image_processor, tokenizer=None, image_seq_len: int = 64, chat_template: str = None, **kwargs): + if image_processor is None: + raise ValueError("You need to specify an `image_processor`.") + if tokenizer is None: + raise ValueError("You need to specify a `tokenizer`.") + + if not hasattr(tokenizer, "image_token"): + self.fake_image_token = AddedToken("", normalized=False, special=True) + self.image_token = AddedToken("", normalized=False, special=True) + tokens_to_add = {"additional_special_tokens": [self.fake_image_token, self.image_token]} + tokenizer.add_special_tokens(tokens_to_add) + else: + self.fake_image_token = tokenizer.image_boundary_token + self.image_token = tokenizer.image_token + + self.end_of_utterance_token = AddedToken("", normalized=False, special=True) + tokenizer.add_special_tokens({"additional_special_tokens": [self.end_of_utterance_token]}) + self.image_seq_len = image_seq_len + + super().__init__(image_processor, tokenizer, chat_template=chat_template) + + def _extract_images_from_prompts(self, prompts): + prompt_images = [] + for prompt in prompts: + images = [] + for elem in prompt: + if is_valid_image(elem): + images.append(elem) + elif is_url(elem): + images.append(load_image(elem)) + prompt_images.append(images) + return prompt_images + + def __call__( + self, + images: Union[ImageInput, List[ImageInput], List[List[ImageInput]]] = None, + text: Union[TextInput, "PreTokenizedInput", List[TextInput], List["PreTokenizedInput"]] = None, + audio=None, + videos=None, + **kwargs: Unpack[Idefics2ProcessorKwargs], + ) -> BatchFeature: + """ + Processes the input prompts and returns a BatchEncoding. + + Example: + + ```python + >>> import requests + >>> from transformers import Idefics2Processor + >>> from transformers.image_utils import load_image + + >>> processor = Idefics2Processor.from_pretrained("HuggingFaceM4/idefics2-8b", image_seq_len=2) + >>> processor.image_processor.do_image_splitting = False # Force as False to simplify the example + + >>> url1 = "https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg" + >>> url2 = "https://cdn.britannica.com/59/94459-050-DBA42467/Skyline-Chicago.jpg" + + >>> image1, image2 = load_image(url1), load_image(url2) + >>> images = [[image1], [image2]] + + >>> text = [ + ... "In this image, we see", + ... "bla bla bla", + ... ] + >>> outputs = processor(images=images, text=text, return_tensors="pt", padding=True) + >>> input_ids = outputs.input_ids + >>> input_tokens = processor.tokenizer.batch_decode(input_ids) + >>> print(input_tokens) + [' In this image, we see', ' bla bla bla'] + ``` + + Args: + images (`PIL.Image.Image`, `np.ndarray`, `torch.Tensor`, `List[PIL.Image.Image]`, `List[np.ndarray]`, `List[torch.Tensor]`, *optional*): + The image or batch of images to be prepared. Each image can be a PIL image, NumPy array or PyTorch + tensor. If is of type `List[ImageInput]`, it's assumed that this is for a single prompt i.e. of batch size 1. + text (`Union[TextInput, PreTokenizedInput, List[TextInput], List[PreTokenizedInput]]`, *optional*): + The sequence or batch of sequences to be encoded. Each sequence can be a string or a list of strings + (pretokenized string). If the sequences are provided as list of strings (pretokenized), you must set + `is_split_into_words=True` (to lift the ambiguity with a batch of sequences). + + Wherever an image token, `` is encountered it is expanded to + `` + `` * `image_seq_len` * `. + return_tensors (`Union[str, TensorType]`, *optional*): + If set, will return tensors of a particular framework. See [`PreTrainedTokenizerFast.__call__`] for more + information. + + """ + if text is None and images is None: + raise ValueError("You must provide either `text` or `images`.") + # check if images and text inputs are reversed for BC + images, text = _validate_images_text_input_order(images, text) + + output_kwargs = self._merge_kwargs( + Idefics2ProcessorKwargs, + tokenizer_init_kwargs=self.tokenizer.init_kwargs, + **kwargs, + ) + image_seq_len = output_kwargs["images_kwargs"].pop("image_seq_len", None) + image_seq_len = image_seq_len if image_seq_len is not None else self.image_seq_len + + n_images_in_text = [] + inputs = BatchFeature() + + if text is not None: + if isinstance(text, str): + text = [text] + elif not isinstance(text, list) and not isinstance(text[0], str): + raise ValueError("Invalid input text. Please provide a string, or a list of strings") + + # Replace the image token with fake tokens around the expanded image token sequence of length `image_seq_len` + fake_image_token = self.fake_image_token.content + image_token = self.image_token.content + image_str = f"{fake_image_token}{image_token * image_seq_len}{fake_image_token}" + + if self.image_processor.do_image_splitting: + # A single image token is split into 4 patches + 1 original image + image_str = image_str * 5 + + prompt_strings = [] + for sample in text: + n_images_in_text.append(sample.count(image_token)) + sample = sample.replace(image_token, image_str) + # Remove any double fake tokens if images are adjacent + sample = sample.replace(f"{fake_image_token}{fake_image_token}", f"{fake_image_token}") + prompt_strings.append(sample) + + text_inputs = self.tokenizer(prompt_strings, **output_kwargs["text_kwargs"]) + inputs.update(text_inputs) + + if images is not None: + if is_image_or_image_url(images): + images = [[images]] + elif isinstance(images, (list, tuple)) and is_image_or_image_url(images[0]): + if text is not None: + if sum(n_images_in_text) != len(images): + raise ValueError( + f"The total number of {image_token} tokens in the prompts should be the same as the number of images passed." + f" Found {sum(n_images_in_text)} {image_token} tokens and {len(images)} images." + ) + # Reorganize the images to match the prompts + cumsum_images_in_text = [0] + list(accumulate(n_images_in_text)) + images = [ + images[cumsum_images_in_text[i] : cumsum_images_in_text[i + 1]] + for i in range(len(n_images_in_text)) + ] + else: + images = [images] + + elif ( + not isinstance(images, (list, tuple)) + and not isinstance(images[0], (list, tuple)) + and not is_image_or_image_url(images[0][0]) + ): + raise ValueError( + "Invalid input images. Please provide a single image or a list of images or a list of list of images." + ) + + n_images_in_images = [len(sample) for sample in images] + if text is not None and not n_images_in_images == n_images_in_text: + raise ValueError( + f"The number of images in the text {n_images_in_text} and images {n_images_in_images} should be the same." + ) + + # Load images if they are URLs + images = [[load_image(im) for im in sample] for sample in images] + image_inputs = self.image_processor(images, **output_kwargs["images_kwargs"]) + inputs.update(image_inputs) + + return inputs + + def batch_decode(self, *args, **kwargs): + """ + This method forwards all its arguments to LlamaTokenizerFast's [`~PreTrainedTokenizer.batch_decode`]. Please + refer to the docstring of this method for more information. + """ + return self.tokenizer.batch_decode(*args, **kwargs) + + def decode(self, *args, **kwargs): + """ + This method forwards all its arguments to LlamaTokenizerFast's [`~PreTrainedTokenizer.decode`]. Please refer to + the docstring of this method for more information. + """ + return self.tokenizer.decode(*args, **kwargs) + + @property + def model_input_names(self): + tokenizer_input_names = self.tokenizer.model_input_names + image_processor_input_names = self.image_processor.model_input_names + return list(dict.fromkeys(tokenizer_input_names + image_processor_input_names)) + + +__all__ = ["Idefics2Processor"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/__init__.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..34bf9c962b65420b6e101091549b8245ad394f9b --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/__init__.py @@ -0,0 +1,29 @@ +# Copyright 2024 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +from typing import TYPE_CHECKING + +from ...utils import _LazyModule +from ...utils.import_utils import define_import_structure + + +if TYPE_CHECKING: + from .configuration_idefics3 import * + from .image_processing_idefics3 import * + from .modeling_idefics3 import * + from .processing_idefics3 import * +else: + import sys + + _file = globals()["__file__"] + sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__) diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/configuration_idefics3.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/configuration_idefics3.py new file mode 100644 index 0000000000000000000000000000000000000000..01c96afcaa47bb2621ceba6d9487c2b3484c14a4 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/configuration_idefics3.py @@ -0,0 +1,190 @@ +# coding=utf-8 +# Copyright 2024 The HuggingFace Inc. team. All rights reserved. +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Idefics3 model configuration""" + +from ...configuration_utils import PretrainedConfig +from ...utils import logging +from ..auto import CONFIG_MAPPING, AutoConfig + + +logger = logging.get_logger(__name__) + + +class Idefics3VisionConfig(PretrainedConfig): + r""" + This is the configuration class to store the configuration of a [`Idefics3VisionModel`]. It is used to instantiate a + Idefics3 vision encoder according to the specified arguments, defining the model architecture. Instantiating a + configuration with the defaults will yield a similar configuration to that of the SigLIP checkpoint + [google/siglip-base-patch16-224](https://huggingface.co/google/siglip-base-patch16-224) used in the Idefics3 model + [HuggingFaceM4/Idefics3-8B-Llama3](https://huggingface.co/HuggingFaceM4/Idefics3-8B-Llama3). + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Args: + hidden_size (`int`, *optional*, defaults to 1152): + Dimensionality of the encoder layers and the pooler layer. + intermediate_size (`int`, *optional*, defaults to 3072): + Dimensionality of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder. + num_hidden_layers (`int`, *optional*, defaults to 12): + Number of hidden layers in the Transformer encoder. + num_attention_heads (`int`, *optional*, defaults to 16): + Number of attention heads for each attention layer in the Transformer encoder. + num_channels (`int`, *optional*, defaults to 3): + Number of channels in the input images. + image_size (`int`, *optional*, defaults to 224): + The size (resolution) of each image. + patch_size (`int`, *optional*, defaults to 32): + The size (resolution) of each patch. + hidden_act (`str` or `function`, *optional*, defaults to `"gelu_pytorch_tanh"`): + The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`, + `"relu"`, `"selu"` and `"gelu_new"` `"quick_gelu"` are supported. + layer_norm_eps (`float`, *optional*, defaults to 1e-06): + The epsilon used by the layer normalization layers. + attention_dropout (`float`, *optional*, defaults to 0.0): + The dropout ratio for the attention probabilities. + initializer_range (`float`, *optional*, defaults to 0.02): + The standard deviation of the truncated_normal_initializer for initializing all weight matrices. + + Example: + + ```python + >>> from transformers.models.idefics3.modeling_idefics3 import Idefics3VisionTransformer + >>> from transformers.models.idefics3.configuration_idefics3 import Idefics3VisionConfig + + >>> # Initializing a Idefics3VisionConfig with google/siglip-base-patch16-224 style configuration + >>> configuration = Idefics3VisionConfig() + + >>> # Initializing a Idefics3VisionTransformer (with random weights) from the google/siglip-base-patch16-224 style configuration + >>> model = Idefics3VisionTransformer(configuration) + + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "idefics3_vision" + base_config_key = "vision_config" + + def __init__( + self, + hidden_size=1152, + intermediate_size=3072, + num_hidden_layers=12, + num_attention_heads=16, + num_channels=3, + image_size=224, + patch_size=32, + hidden_act="gelu_pytorch_tanh", + layer_norm_eps=1e-6, + attention_dropout=0.0, + initializer_range=0.02, + **kwargs, + ): + super().__init__(**kwargs) + + self.hidden_size = hidden_size + self.intermediate_size = intermediate_size + self.num_hidden_layers = num_hidden_layers + self.num_attention_heads = num_attention_heads + self.num_channels = num_channels + self.patch_size = patch_size + self.image_size = image_size + self.attention_dropout = attention_dropout + self.layer_norm_eps = layer_norm_eps + self.hidden_act = hidden_act + self.initializer_range = initializer_range + + +class Idefics3Config(PretrainedConfig): + r""" + This is the configuration class to store the configuration of a [`Idefics3Model`]. It is used to instantiate a + Idefics3 model according to the specified arguments, defining the model architecture. Instantiating a + configuration with the defaults will yield a similar configuration to that of the model of the Idefics3 + [HuggingFaceM4/Idefics3-8B-Llama3](https://huggingface.co/HuggingFaceM4/Idefics3-8B-Llama3) architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Args: + use_cache (`bool`, *optional*, defaults to `True`): + Whether or not the model should cache the key/value pairs of the attention mechanism. Only + relevant if `config.is_decoder=True`. + image_token_id (`int`, *optional*, defaults to 128257): + The id of the "image" token. + tie_word_embeddings (`bool`, *optional*, defaults to `False`): + Whether or not to tie the word embeddings with the token embeddings. + vision_config (`IdeficsVisionConfig` or `dict`, *optional*, defaults to `IdeficsVisionConfig`): + Custom vision config or dict for the vision tower + text_config (`PretrainedConfig` or `dict`, *optional*, defaults to `LlamaConfig`): + Custom text config or dict for the text model + scale_factor (`int`, *optional*, defaults to 2): + The scale factor for the image encoder. + pad_token_id (`int`, *optional*, defaults to 128002): + The id of the padding token. + + Example: + ```python + >>> from transformers import Idefics3Model, Idefics3Config + >>> # Initializing configuration + >>> configuration = Idefics3Config() + >>> # Initializing a model from the configuration + >>> model = Idefics3Model(configuration) + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "idefics3" + sub_configs = {"text_config": AutoConfig, "vision_config": Idefics3VisionConfig} + + def __init__( + self, + use_cache=True, + image_token_id=128257, + tie_word_embeddings=False, + vision_config=None, + text_config=None, + scale_factor=2, + pad_token_id=128_002, + **kwargs, + ): + self.image_token_id = image_token_id + self.use_cache = use_cache + self.tie_word_embeddings = tie_word_embeddings + + if vision_config is None: + self.vision_config = Idefics3VisionConfig() + logger.info("vision_config is None, using default vision config") + elif isinstance(vision_config, dict): + self.vision_config = Idefics3VisionConfig(**vision_config) + elif isinstance(vision_config, Idefics3VisionConfig): + self.vision_config = vision_config + + if isinstance(text_config, dict): + text_config["model_type"] = text_config["model_type"] if "model_type" in text_config else "llama" + text_config = CONFIG_MAPPING[text_config["model_type"]](**text_config) + elif text_config is None: + logger.info("text_config is None, using default text config") + text_config = CONFIG_MAPPING["llama"]( + rms_norm_eps=1e-5, + pad_token_id=pad_token_id, + tie_word_embeddings=False, + ) + + self.text_config = text_config + self.scale_factor = scale_factor + + super().__init__(**kwargs, pad_token_id=pad_token_id, tie_word_embeddings=tie_word_embeddings) + + +__all__ = ["Idefics3Config", "Idefics3VisionConfig"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/convert_idefics3_weights_to_hf.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/convert_idefics3_weights_to_hf.py new file mode 100644 index 0000000000000000000000000000000000000000..204104a58b30e82bfb03f4a54983d712bc2265b3 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/convert_idefics3_weights_to_hf.py @@ -0,0 +1,214 @@ +# Copyright 2024 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import argparse +import json + +import torch +from accelerate import init_empty_weights +from huggingface_hub import hf_hub_download + +from transformers import ( + AutoModelForCausalLM, + AutoTokenizer, + Idefics3Config, + Idefics3ForConditionalGeneration, + Idefics3ImageProcessor, + Idefics3Processor, + LlamaConfig, +) + + +EPILOG_TXT = """Example: + python transformers/src/transformers/models/idefics3/convert_idefics3_weights_to_hf.py --original_model_id HuggingFaceM4/Idefics3-8B-Llama3 --output_hub_path org/idefics3 +""" + + +KEYS_TO_MODIFY_MAPPING = { + "lm_head.weight": "lm_head.linear.weight", + "model.layers": "model.text_model.layers", + "model.norm": "model.text_model.norm", + "model.modality_projection": "model.connector.modality_projection", +} + + +WEIGHTS_TO_MERGE_MAPPING = ( + # (weights to merge in merging order), (new weight name) + ( + ("model.embed_tokens.weight", "model.embed_tokens.additional_embedding.weight"), + "model.text_model.embed_tokens.weight", + ), + (("lm_head.linear.weight", "additional_fc.weight"), "lm_head.weight"), +) + +WEIGHTS_TO_DROP = ( + # The original model had a vision head, but this is never used + "model.vision_model.head", +) + + +def convert_state_dict_to_hf(state_dict): + new_state_dict = {} + old_state_dict_keys = set(state_dict.keys()) + + # Flattened list of weights to merge. We keep these in the original state dict to merge them later + original_weights_to_merge = [w for weights in WEIGHTS_TO_MERGE_MAPPING for w in weights[0]] + + # for key, value in state_dict.items(): + for old_key in old_state_dict_keys: + if old_key.endswith(".inv_freq") or any(w in old_key for w in WEIGHTS_TO_DROP): + state_dict.pop(old_key) + continue + + key = old_key + for key_to_modify, new_key in KEYS_TO_MODIFY_MAPPING.items(): + if key_to_modify in key: + key = key.replace(key_to_modify, new_key) + + weight = state_dict.pop(old_key) + if key in original_weights_to_merge: + new_state_dict[key] = weight + # Bit of a hack - we need to keep the original weights to merge them later + state_dict[key] = weight + else: + new_state_dict[key] = weight + + return new_state_dict + + +def merge_weights(state_dict, new_state_dict): + old_weight_names = set(state_dict.keys()) + + # Merge the weights + for weights_to_merge, new_weight_name in WEIGHTS_TO_MERGE_MAPPING: + for weight_to_merge in weights_to_merge: + print(weight_to_merge) + assert weight_to_merge in state_dict, f"Weight {weight_to_merge} is missing in the state dict" + + weight = state_dict.pop(weight_to_merge) + if new_weight_name not in new_state_dict: + new_state_dict[new_weight_name] = [weight] + else: + new_state_dict[new_weight_name].append(weight) + + old_weight_names.remove(weight_to_merge) + + new_state_dict[new_weight_name] = torch.cat(new_state_dict[new_weight_name], dim=0) + + # Remove the weights that were merged + for weights_to_merge, new_weight_name in WEIGHTS_TO_MERGE_MAPPING: + for weight in weights_to_merge: + if weight in new_state_dict and weight != new_weight_name: + new_state_dict.pop(weight) + + return new_state_dict + + +def get_config(checkpoint): + # We load the config then recreate to use the text_config + + # download the config file + filepath = hf_hub_download(repo_id=checkpoint, filename="config.json") + with open(filepath, "r") as f: + config_json = json.load(f) + + # Setup the vision config + vision_config = config_json.pop("vision_config") + vision_config.pop("vision_model_name", None) + if "embed_dim" in vision_config: + vision_config["hidden_size"] = vision_config.pop("embed_dim") + + config_json["vocab_size"] = config_json.pop("vocab_size") + config_json.pop("additional_vocab_size") + + image_token_id = config_json.pop("image_token_id", config_json["vocab_size"] - 2) + use_cache = config_json.pop("use_cache", True) + tie_word_embeddings = config_json.pop("tie_word_embeddings", True) + scale_factor = config_json.pop("scale_factor", 2) + vocab_size = config_json.pop("vocab_size", 100000) + + # Remove "freeze" params from the config + config_json = {k: v for k, v in config_json.items() if not k.startswith("freeze_")} + text_config = LlamaConfig(**config_json) + + config = Idefics3Config( + text_config=text_config, + vision_config=vision_config, + use_cache=use_cache, + image_token_id=image_token_id, + tie_word_embeddings=tie_word_embeddings, + scale_factor=scale_factor, + vocab_size=vocab_size, + ) + return config + + +def convert_idefics3_hub_to_hf(original_model_id, output_hub_path, push_to_hub): + # The original model maps to AutoModelForCausalLM, converted we map to Idefics3ForConditionalGeneration + original_model = AutoModelForCausalLM.from_pretrained( + original_model_id, trust_remote_code=True, torch_dtype=torch.bfloat16 + ) + # The original model doesn't use the Idefics3 processing objects + image_processor = Idefics3ImageProcessor() + tokenizer = AutoTokenizer.from_pretrained(original_model_id) + processor = Idefics3Processor( + image_processor=image_processor, + tokenizer=tokenizer, + ) + state_dict = original_model.state_dict() + new_state_dict = convert_state_dict_to_hf(state_dict) + + # Merge weights + new_state_dict = merge_weights(state_dict, new_state_dict) + del state_dict + + config = get_config(original_model_id) + print(config) + + with init_empty_weights(): + model = Idefics3ForConditionalGeneration(config) + + model.load_state_dict(new_state_dict, strict=True, assign=True) + + model.save_pretrained(output_hub_path) + processor.save_pretrained(output_hub_path) + + if push_to_hub: + model.push_to_hub(output_hub_path, private=True) + processor.push_to_hub(output_hub_path, private=True) + + +def main(): + parser = argparse.ArgumentParser( + epilog=EPILOG_TXT, + formatter_class=argparse.RawDescriptionHelpFormatter, + ) + parser.add_argument( + "--original_model_id", + help="Hub location of the text model", + ) + parser.add_argument( + "--output_hub_path", + help="Location on the hub of the converted model", + ) + parser.add_argument( + "--push_to_hub", + action="store_true", + help="If set, the model will be pushed to the hub after conversion.", + ) + args = parser.parse_args() + convert_idefics3_hub_to_hf(args.original_model_id, args.output_hub_path, args.push_to_hub) + + +if __name__ == "__main__": + main() diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/image_processing_idefics3.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/image_processing_idefics3.py new file mode 100644 index 0000000000000000000000000000000000000000..bf21f06e8c5ae15d9b3d47c93f1706ded8b302ba --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/image_processing_idefics3.py @@ -0,0 +1,854 @@ +# coding=utf-8 +# Copyright 2024 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from typing import Any, Dict, Iterable, List, Optional, Tuple, Union + +import numpy as np + +from ...image_processing_utils import BaseImageProcessor, BatchFeature +from ...image_transforms import PaddingMode, pad, to_channel_dimension_format, to_pil_image +from ...image_utils import ( + IMAGENET_STANDARD_MEAN, + IMAGENET_STANDARD_STD, + ChannelDimension, + ImageInput, + PILImageResampling, + get_image_size, + infer_channel_dimension_format, + is_scaled_image, + make_nested_list_of_images, + to_numpy_array, + valid_images, + validate_preprocess_arguments, +) +from ...utils import TensorType, is_vision_available, logging + + +logger = logging.get_logger(__name__) +MAX_IMAGE_SIZE = 4096 # 4k resolution as absolute maximum + + +if is_vision_available(): + import PIL + from PIL import Image + + +def _resize_output_size_rescale_to_max_len( + height: int, width: int, min_len: Optional[int] = 1, max_len: Optional[int] = None +) -> Tuple[int, int]: + """ + Get the output size of the image after resizing given a dictionary specifying the max and min sizes. + Args: + height (`int`): + Height of the input image. + width (`int`): + Width of the input image. + min_len (`int`, *optional*, defaults to 1): + Minimum size of the output image. + max_len (`int`, *optional*, defaults to the maximum size of the image): + Maximum size of the output image. + Returns: + The output size of the image after resizing. + """ + max_len = max(height, width) if max_len is None else max_len + aspect_ratio = width / height + + if width >= height: + width = max_len + height = int(width / aspect_ratio) + if height % 2 != 0: + height += 1 + elif height > width: + height = max_len + width = int(height * aspect_ratio) + if width % 2 != 0: + width += 1 + + # Avoid resizing to a size smaller than min_len + height = max(height, min_len) + width = max(width, min_len) + return height, width + + +def _resize_output_size_scale_below_upper_bound( + height: int, width: int, max_len: Optional[Dict[str, int]] = None +) -> Tuple[int, int]: + """ + Get the output size of the image after resizing given a dictionary specifying the max and min sizes. + Args: + height (`int`): + Height of the input image. + width (`int`): + Width of the input image. + max_len (`Dict[str, int]`, *optional*, defaults to the maximum size of the image): + Defines the maximum dimensions of the image. + Returns: + The output size of the image after resizing. + """ + max_len = max(height, width) if max_len is None else max_len + + aspect_ratio = width / height + if width >= height and width > max_len: + width = max_len + height = int(width / aspect_ratio) + elif height > width and height > max_len: + height = max_len + width = int(height * aspect_ratio) + + # Avoid resizing to a size smaller than 1 + height = max(height, 1) + width = max(width, 1) + return height, width + + +def get_resize_output_image_size( + image, + resolution_max_side: int, + input_data_format: Optional[Union[str, ChannelDimension]] = None, +) -> Tuple[int, int]: + """ + Get the output size of the image after resizing given a dictionary specifying the max and min sizes. + Args: + image (`np.ndarray`): + Image to resize. + resolution_max_side (`int`): + The longest edge of the image will be resized to this value. The shortest edge will be resized to keep the + input aspect ratio. + input_data_format (`ChannelDimension` or `str`): + The channel dimension format of the input image. + Returns: + The output size of the image after resizing. + """ + height, width = get_image_size(image, channel_dim=input_data_format) + + # Find the output size, when rescaling the longest edge to max_len and preserving the aspect ratio + height, width = _resize_output_size_rescale_to_max_len(height, width, max_len=resolution_max_side) + # Find the output size when scaling the image to be below the MAX_IMAGE_SIZE + height, width = _resize_output_size_scale_below_upper_bound(height, width, max_len=MAX_IMAGE_SIZE) + return height, width + + +# Copied from transformers.models.detr.image_processing_detr.max_across_indices +def max_across_indices(values: Iterable[Any]) -> List[Any]: + """ + Return the maximum value across all indices of an iterable of values. + """ + return [max(values_i) for values_i in zip(*values)] + + +def get_max_height_width( + images_list: List[List[np.ndarray]], input_data_format: Optional[Union[str, ChannelDimension]] = None +) -> List[int]: + """ + Get the maximum height and width across all images in a batch. + """ + if input_data_format is None: + input_data_format = infer_channel_dimension_format(images_list[0][0], num_channels=(1, 3, 4)) + + max_height = max_width = float("-inf") + for images in images_list: + for image in images: + height, width = get_image_size(image, channel_dim=input_data_format) + max_height = max(height, max_height) + max_width = max(width, max_width) + return (max_height, max_width) + + +# Copied from transformers.models.detr.image_processing_detr.make_pixel_mask +def make_pixel_mask( + image: np.ndarray, output_size: Tuple[int, int], input_data_format: Optional[Union[str, ChannelDimension]] = None +) -> np.ndarray: + """ + Make a pixel mask for the image, where 1 indicates a valid pixel and 0 indicates padding. + Args: + image (`np.ndarray`): + Image to make the pixel mask for. + output_size (`Tuple[int, int]`): + Output size of the mask. + """ + input_height, input_width = get_image_size(image, channel_dim=input_data_format) + mask = np.zeros(output_size, dtype=np.int64) + mask[:input_height, :input_width] = 1 + return mask + + +def convert_to_rgb( + image: np.ndarray, + palette: Optional[PIL.ImagePalette.ImagePalette] = None, + data_format: Optional[Union[str, ChannelDimension]] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, +) -> ImageInput: + """ + Converts an image to RGB format. + Args: + image (`np.ndarray`): + The image to convert. + palette (List[int], *optional*): + The palette to use if given. + data_format (ChannelDimension or str, *optional*): + The channel dimension format for the output image. If not provided, it will be the same as the input image. + input_data_format (ChannelDimension or str, *optional*): + The channel dimension format of the input image. + """ + if input_data_format is None: + input_data_format = infer_channel_dimension_format(image, num_channels=(1, 3, 4)) + + # For all transformations, we want to keep the same data format as the input image unless otherwise specified. + # The resized image from PIL will always have channels last, so find the input format first. + data_format = input_data_format if data_format is None else data_format + + mode = "P" if palette is not None else None + image = to_pil_image(image, image_mode=mode, input_data_format=input_data_format) + if image.mode == "P" and palette is not None: + image.putpalette(palette) + + image_rgba = image.convert("RGBA") + background = Image.new("RGBA", image_rgba.size, (255, 255, 255)) + alpha_composite = Image.alpha_composite(background, image_rgba) + alpha_composite = alpha_composite.convert("RGB") + + output_array = np.array(alpha_composite) + # The image is always in channels last format after converting from a PIL image + output_array = to_channel_dimension_format(output_array, data_format, input_channel_dim=ChannelDimension.LAST) + return output_array + + +# FIXME Amy: make a more general crop function that isn't just centre crop +def _crop( + image: np.ndarray, + w1: int, + h1: int, + w2: int, + h2: int, + data_format: Optional[Union[str, ChannelDimension]] = None, +) -> np.ndarray: + if data_format is None: + data_format = infer_channel_dimension_format(image, num_channels=(1, 3, 4)) + + if data_format == ChannelDimension.FIRST: + image = image[:, h1:h2, w1:w2] + elif data_format == ChannelDimension.LAST: + image = image[h1:h2, w1:w2, :] + else: + raise ValueError("Invalid channel dimension format.") + + return image + + +class Idefics3ImageProcessor(BaseImageProcessor): + r""" + Constructs a Idefics3 image processor. + Args: + do_convert_rgb (`bool`, *optional*, defaults to `True`): + Whether to convert the image to RGB. This is useful if the input image is of a different format e.g. RGBA. + Only has an effect if the input image is in the PIL format. + do_resize (`bool`, *optional*, defaults to `True`): + Whether to resize the image. The longest edge of the image is resized to be <= `size["longest_edge"]`, with the + shortest edge resized to keep the input aspect ratio. + size (`Dict`, *optional*, defaults to `{"longest_edge": 4 * 364}`): + Controls the size of the output image. This is a dictionary containing the key "longest_edge". + The image will be resized such that the longest edge is <= `size["longest_edge"]` and the shortest edge is resized + to keep the input aspect ratio. + resample (`Resampling`, *optional*, defaults to `Resampling.LANCZOS`): + Resampling filter to use when resizing the image. + do_image_splitting (`bool`, *optional*, defaults to `True`): + Whether to split the image into sub-images concatenated with the original image. They are split into patches + such that each patch has a size of `max_image_size["height"]` x `max_image_size["width"]`. + max_image_size (`Dict`, *optional*, defaults to `{"longest_edge": 364}`): + Maximum resolution of the patches of images accepted by the model. This is a dictionary containing the key "longest_edge". + do_rescale (`bool`, *optional*, defaults to `True`): + Whether to rescale the image. If set to `True`, the image is rescaled to have pixel values between 0 and 1. + rescale_factor (`float`, *optional*, defaults to `1/255`): + Rescale factor to rescale the image by if `do_rescale` is set to `True`. + do_normalize (`bool`, *optional*, defaults to `True`): + Whether to normalize the image. If set to `True`, the image is normalized to have a mean of `image_mean` and + a standard deviation of `image_std`. + image_mean (`float` or `List[float]`, *optional*, defaults to `IDEFICS_STANDARD_MEAN`): + Mean to use if normalizing the image. This is a float or list of floats the length of the number of + channels in the image. Can be overridden by the `image_mean` parameter in the `preprocess` method. Can be + overridden by the `image_mean` parameter in the `preprocess` method. + image_std (`float` or `List[float]`, *optional*, defaults to `IDEFICS_STANDARD_STD`): + Standard deviation to use if normalizing the image. This is a float or list of floats the length of the + number of channels in the image. Can be overridden by the `image_std` parameter in the `preprocess` method. + Can be overridden by the `image_std` parameter in the `preprocess` method. + do_pad (`bool`, *optional*, defaults to `True`): + Whether or not to pad the images to the largest height and width in the batch and number of images per + sample in the batch, such that the returned tensor is of shape (batch_size, max_num_images, num_channels, max_height, max_width). + """ + + model_input_names = ["pixel_values", "pixel_attention_mask"] + + def __init__( + self, + do_convert_rgb: bool = True, + do_resize: bool = True, + size: Dict[str, int] = None, + resample: PILImageResampling = PILImageResampling.LANCZOS, + do_image_splitting: bool = True, + max_image_size: Dict[str, int] = None, + do_rescale: bool = True, + rescale_factor: float = 1 / 255, + do_normalize: bool = True, + image_mean: Optional[Union[float, List[float]]] = None, + image_std: Optional[Union[float, List[float]]] = None, + do_pad: bool = True, + **kwargs, + ) -> None: + super().__init__(**kwargs) + self.do_convert_rgb = do_convert_rgb + self.do_resize = do_resize + self.size = size if size is not None else {"longest_edge": 4 * 364} + self.resample = resample + self.do_image_splitting = do_image_splitting + self.max_image_size = max_image_size if max_image_size is not None else {"longest_edge": 364} + self.do_rescale = do_rescale + self.rescale_factor = rescale_factor + self.do_normalize = do_normalize + self.image_mean = image_mean if image_mean is not None else IMAGENET_STANDARD_MEAN + self.image_std = image_std if image_std is not None else IMAGENET_STANDARD_STD + self.do_pad = do_pad + + def resize( + self, + image: np.ndarray, + size: Dict[str, int], + resample: PILImageResampling = PILImageResampling.LANCZOS, + data_format: Optional[Union[str, ChannelDimension]] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + **kwargs, + ) -> np.ndarray: + """ + Resize an image. The longest edge of the image is resized to size["longest_edge"], with the shortest edge + resized to keep the input aspect ratio. Can also be used with size["height"] and size["width"]. + Args: + image (`np.ndarray`): + Image to resize. + size (`Dict[str, int]`): + Size of the output image. + resample (`PILImageResampling`, *optional*, defaults to `PILImageResampling.LANCZOS`): + Resampling filter to use when resizing the image. + data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format of the output image. If not provided, it will be the same as the input image. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format of the input image. If not provided, it will be inferred. + """ + if input_data_format is None: + input_data_format = infer_channel_dimension_format(image, num_channels=(1, 3, 4)) + + # For all transformations, we want to keep the same data format as the input image unless otherwise specified. + # The resized image from PIL will always have channels last, so find the input format first. + data_format = input_data_format if data_format is None else data_format + + if "longest_edge" in size: + size = get_resize_output_image_size( + image, resolution_max_side=size["longest_edge"], input_data_format=input_data_format + ) + elif "height" in size and "width" in size: + size = (size["height"], size["width"]) + else: + raise ValueError("size must be a dictionary with key 'longest_edge' or 'height' and 'width'.") + + image_mode = None + if image.ndim == 2 or image.shape[-1] == 1: + image_mode = "P" + image = to_pil_image(image, image_mode=image_mode, input_data_format=input_data_format) + + resized_image = image.resize((size[1], size[0]), resample=resample) + resized_image = np.array(resized_image) + + # If the input image channel dimension was of size 1, then it is dropped when converting to a PIL image + # so we need to add it back if necessary. + resized_image = np.expand_dims(resized_image, axis=-1) if resized_image.ndim == 2 else resized_image + # The image is always in channels last format after converting from a PIL image + resized_image = to_channel_dimension_format( + resized_image, data_format, input_channel_dim=ChannelDimension.LAST + ) + return resized_image + + def split_image( + self, + image, + max_image_size: Dict[str, int], + resample: PILImageResampling = PILImageResampling.LANCZOS, + data_format: Optional[Union[str, ChannelDimension]] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ): + """ + Split an image into squares of side max_image_size and the original image resized to max_image_size. + That means that a single image becomes a sequence of images. + This is a "trick" to spend more compute on each image with no changes in the vision encoder. + 1) If one side of the original image is larger than `max_image_size`, resize it to `max_image_size` while preserving the aspect ratio. + 2) Divide the resulting image into `ceil(height / max_image_size)` x `ceil(width / max_image_size)` + sub-images of the same size each (image_size, image_size). Typically, 364x364. + 3) Returns the list of the crops and the original image, in addition to the number of splits for the height and the width. + Args: + image (`np.ndarray`): + Images to split. + max_image_size (`Dict[str, int]`): + Maximum size of the output image. If the image is larger than this size, it will be split into + patches of this size, and the original image will be concatenated with the patches, resized to max_size. + resample (`PILImageResampling`, *optional*, defaults to `PILImageResampling.LANCZOS`): + Resampling filter to use when resizing the image. + data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format of the output image. If not provided, it will be the same as the input image. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format of the input image. If not provided, it will be inferred. + """ + height, width = get_image_size(image, channel_dim=input_data_format) + max_height = max_width = max_image_size["longest_edge"] + + frames = [] + if height > max_height or width > max_width: + # Calculate the number of splits + num_splits_h = math.ceil(height / max_height) + num_splits_w = math.ceil(width / max_width) + # Calculate the optimal width and height for the sub-images + optimal_height = math.ceil(height / num_splits_h) + optimal_width = math.ceil(width / num_splits_w) + + # Iterate through each row and column + for r in range(num_splits_h): + for c in range(num_splits_w): + # Calculate the starting point of the crop + start_x = c * optimal_width + start_y = r * optimal_height + + # Calculate the ending point of the crop + end_x = min(start_x + optimal_width, width) + end_y = min(start_y + optimal_height, height) + + # Crop the image + cropped_image = _crop( + image, + start_x, + start_y, + end_x, + end_y, + data_format=data_format, + ) + frames.append(cropped_image) + + # For the global image at the end, we resize it to match the max_image_size, for cpu memory efficiency + global_image_height, global_image_width = max_height, max_width + if height != global_image_height or width != global_image_width: + image = self.resize( + image, + {"height": global_image_height, "width": global_image_width}, + resample=resample, + input_data_format=data_format, + ) + else: + num_splits_h, num_splits_w = 0, 0 + + frames.append(image) + + return frames, num_splits_h, num_splits_w + + def resize_for_vision_encoder( + self, + image: np.ndarray, + vision_encoder_max_size: int, + resample: PILImageResampling = PILImageResampling.LANCZOS, + data_format: Optional[Union[str, ChannelDimension]] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ): + """ + Resize images to be multiples of `vision_encoder_max_size` while preserving the aspect ratio. + Args: + image (`np.ndarray`): + Images to resize. + vision_encoder_max_size (`int`): + Maximum size of the output image. If the image is larger than this size, it will be split into + patches of this size, and the original image will be concatenated with the patches, resized to max_size. + resample (`PILImageResampling`, *optional*, defaults to `PILImageResampling.LANCZOS`): + Resampling filter to use when resizing the image. + data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format of the output image. If not provided, it will be the same as the input image. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format of the input image. If not provided, it will be inferred + """ + height, width = get_image_size(image, channel_dim=input_data_format) + + aspect_ratio = width / height + if width >= height: + width = math.ceil(width / vision_encoder_max_size) * vision_encoder_max_size + height = int(width / aspect_ratio) + height = math.ceil(height / vision_encoder_max_size) * vision_encoder_max_size + elif height > width: + height = math.ceil(height / vision_encoder_max_size) * vision_encoder_max_size + width = int(height * aspect_ratio) + width = math.ceil(width / vision_encoder_max_size) * vision_encoder_max_size + new_size = {"height": height, "width": width} + return self.resize( + image, size=new_size, resample=resample, input_data_format=input_data_format, data_format=data_format + ) + + def _pad_image( + self, + image: np.ndarray, + output_size: Tuple[int, int], + constant_values: Union[float, Iterable[float]] = 0, + data_format: Optional[ChannelDimension] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ) -> np.ndarray: + """ + Pad an image with zeros to the given size. + """ + input_height, input_width = get_image_size(image, channel_dim=input_data_format) + output_height, output_width = output_size + + pad_bottom = output_height - input_height + pad_right = output_width - input_width + padding = ((0, pad_bottom), (0, pad_right)) + padded_image = pad( + image, + padding, + mode=PaddingMode.CONSTANT, + constant_values=constant_values, + data_format=data_format, + input_data_format=input_data_format, + ) + return padded_image + + def pad( + self, + images: List[np.ndarray], + constant_values: Union[float, Iterable[float]] = 0, + return_pixel_mask: bool = True, + return_tensors: Optional[Union[str, TensorType]] = None, + data_format: Optional[ChannelDimension] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ) -> BatchFeature: + """ + For a list of images, for each images, pads a batch of images to the bottom and right of the image with zeros to the size of largest height and width. + For each sample in the batch, pads the sample with empty images to the max_number of images per sample in the batch. Optionally returns a pixel mask. + Args: + images (`List[np.ndarray]`): + List of list of images to pad. Pads to the largest height and width in the batch. + constant_values (`float` or `Iterable[float]`, *optional*): + The value to use for the padding if `mode` is `"constant"`. + return_pixel_mask (`bool`, *optional*, defaults to `True`): + Whether to return a pixel mask. + return_tensors (`str` or `TensorType`, *optional*): + The type of tensors to return. Can be one of: + - Unset: Return a list of `np.ndarray`. + - `TensorType.TENSORFLOW` or `'tf'`: Return a batch of type `tf.Tensor`. + - `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`. + - `TensorType.NUMPY` or `'np'`: Return a batch of type `np.ndarray`. + - `TensorType.JAX` or `'jax'`: Return a batch of type `jax.numpy.ndarray`. + data_format (`str` or `ChannelDimension`, *optional*): + The channel dimension format of the image. If not provided, it will be the same as the input image. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format of the input image. If not provided, it will be inferred. + """ + pad_size = get_max_height_width(images, input_data_format=input_data_format) + + batch_size = len(images) + max_num_images = max(len(images_) for images_ in images) + input_data_format = ( + infer_channel_dimension_format(images[0][0], num_channels=(1, 3, 4)) + if input_data_format is None + else input_data_format + ) + data_format = input_data_format if data_format is None else data_format + + if input_data_format == ChannelDimension.FIRST: + n_channels = images[0][0].shape[0] + elif input_data_format == ChannelDimension.LAST: + n_channels = images[0][0].shape[-1] + else: + raise ValueError("Invalid channel dimension format.") + + def empty_image(size, input_data_format): + if input_data_format == ChannelDimension.FIRST: + return np.zeros((n_channels, *size), dtype=np.uint8) + elif input_data_format == ChannelDimension.LAST: + return np.zeros((*size, n_channels), dtype=np.uint8) + + padded_images_list = [ + [empty_image(pad_size, data_format) for _ in range(max_num_images)] for _ in range(batch_size) + ] + padded_masks = [[np.zeros(pad_size) for _ in range(max_num_images)] for _ in range(batch_size)] + + for batch_idx in range(batch_size): + for sample_idx, image in enumerate(images[batch_idx]): + padded_images_list[batch_idx][sample_idx] = self._pad_image( + image, + pad_size, + constant_values=constant_values, + data_format=data_format, + input_data_format=input_data_format, + ) + padded_masks[batch_idx][sample_idx] = make_pixel_mask( + image, output_size=pad_size, input_data_format=input_data_format + ) + + padded_masks = padded_masks if return_pixel_mask else None + return padded_images_list, padded_masks + + def preprocess( + self, + images: ImageInput, + do_convert_rgb: Optional[bool] = None, + do_resize: Optional[bool] = None, + size: Optional[Dict[str, int]] = None, + resample: PILImageResampling = None, + do_image_splitting: Optional[bool] = None, + do_rescale: Optional[bool] = None, + max_image_size: Optional[Dict[str, int]] = None, + rescale_factor: Optional[float] = None, + do_normalize: Optional[bool] = None, + image_mean: Optional[Union[float, List[float]]] = None, + image_std: Optional[Union[float, List[float]]] = None, + do_pad: Optional[bool] = None, + return_tensors: Optional[Union[str, TensorType]] = None, + return_row_col_info: bool = False, + data_format: Optional[ChannelDimension] = ChannelDimension.FIRST, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ): + """ + Preprocess a batch of images. + Args: + images (`ImageInput`): + A list of images to preprocess. + do_convert_rgb (`bool`, *optional*, defaults to `self.do_convert_rgb`): + Whether to convert the image to RGB. + do_resize (`bool`, *optional*, defaults to `self.do_resize`): + Whether to resize the image. + size (`Dict[str, int]`, *optional*, defaults to `self.size`): + Size of the image after resizing. With the longest edge resized to keep the input aspect ratio. + resample (`int`, *optional*, defaults to `self.resample`): + Resampling filter to use if resizing the image. This can be one of the enum `PILImageResampling`. Only + has an effect if `do_resize` is set to `True`. + do_image_splitting (`bool`, *optional*, defaults to `self.do_image_splitting`): + Whether to split the image into sub-images concatenated with the original image. They are split into patches + such that each patch has a size of `max_image_size["height"]` x `max_image_size["width"]`. + max_image_size (`Dict`, *optional*, defaults to `self.max_image_size`): + Maximum resolution of the images. If the image is larger than this size, the image is split into patches. + do_rescale (`bool`, *optional*, defaults to `self.do_rescale`): + Whether to rescale the image. + rescale_factor (`float`, *optional*, defaults to `self.rescale_factor`): + Rescale factor to rescale the image by if `do_rescale` is set to `True`. + do_normalize (`bool`, *optional*, defaults to `self.do_normalize`): + Whether to normalize the image. + image_mean (`float` or `List[float]`, *optional*, defaults to `self.image_mean`): + Image mean to use for normalization. Only has an effect if `do_normalize` is set to `True`. + image_std (`float` or `List[float]`, *optional*, defaults to `self.image_std`): + Image standard deviation to use for normalization. Only has an effect if `do_normalize` is set to + `True`. + do_pad (`bool`, *optional*, defaults to `self.do_pad`): + Whether or not to pad the images to the largest height and width in the batch. + return_tensors (`str` or `TensorType`, *optional*): + The type of tensors to return. Can be one of: + - Unset: Return a list of `np.ndarray`. + - `TensorType.TENSORFLOW` or `'tf'`: Return a batch of type `tf.Tensor`. + - `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`. + - `TensorType.NUMPY` or `'np'`: Return a batch of type `np.ndarray`. + - `TensorType.JAX` or `'jax'`: Return a batch of type `jax.numpy.ndarray`. + return_row_col_info (`bool`, *optional*, default to `False`): + Whether to return the number of rows and columns of the split images. This is used for the + `Idefics3Processor` to generate prompt strings based on the number of rows and columns. + data_format (`ChannelDimension` or `str`, *optional*, defaults to `ChannelDimension.FIRST`): + The channel dimension format for the output image. Can be one of: + - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format. + - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format. + - Unset: Use the channel dimension format of the input image. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format for the input image. If unset, the channel dimension format is inferred + from the input image. Can be one of: + - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format. + - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format. + - `"none"` or `ChannelDimension.NONE`: image in (height, width) format. + """ + do_resize = do_resize if do_resize is not None else self.do_resize + size = size if size is not None else self.size + resample = resample if resample is not None else self.resample + do_rescale = do_rescale if do_rescale is not None else self.do_rescale + rescale_factor = rescale_factor if rescale_factor is not None else self.rescale_factor + do_image_splitting = do_image_splitting if do_image_splitting is not None else self.do_image_splitting + max_image_size = max_image_size if max_image_size is not None else self.max_image_size + do_normalize = do_normalize if do_normalize is not None else self.do_normalize + image_mean = image_mean if image_mean is not None else self.image_mean + image_std = image_std if image_std is not None else self.image_std + do_convert_rgb = do_convert_rgb if do_convert_rgb is not None else self.do_convert_rgb + do_pad = do_pad if do_pad is not None else self.do_pad + + images_list = make_nested_list_of_images(images) + + if not valid_images(images_list[0]): + raise ValueError( + "Invalid image type. Must be of type PIL.Image.Image, numpy.ndarray, " + "torch.Tensor, tf.Tensor or jax.ndarray." + ) + + validate_preprocess_arguments( + do_rescale=do_rescale, + rescale_factor=rescale_factor, + do_normalize=do_normalize, + image_mean=image_mean, + image_std=image_std, + do_resize=do_resize, + size=size, + resample=resample, + ) + + # save the palettes for conversion to RGB + palettes_list = [ + [im.getpalette() if isinstance(im, Image.Image) and im.mode == "P" else None for im in images] + for images in images_list + ] + + # All transformations expect numpy arrays. + images_list = [[to_numpy_array(image) for image in images] for images in images_list] + + # Extra channel dimension for grayscale images + if input_data_format in [ChannelDimension.LAST, None]: + images_list = [ + [np.expand_dims(img, axis=-1) if img.ndim == 2 else img for img in images] for images in images_list + ] + elif input_data_format == ChannelDimension.FIRST: + images_list = [ + [np.expand_dims(img, axis=0) if img.ndim == 2 else img for img in images] for images in images_list + ] + + if do_rescale and is_scaled_image(images_list[0][0]): + logger.warning_once( + "It looks like you are trying to rescale already rescaled images. If the input" + " images have pixel values between 0 and 1, set `do_rescale=False` to avoid rescaling them again." + ) + + # We assume that all images have the same channel dimension format. + if input_data_format is None: + input_data_format = infer_channel_dimension_format(images_list[0][0], num_channels=(1, 3, 4)) + + if do_resize: + images_list = [ + [ + self.resize(image=image, size=size, resample=resample, input_data_format=input_data_format) + for image in images + ] + for images in images_list + ] + + if do_image_splitting: + # We first resize both height and width of each image to the nearest max_image_size multiple, disregarding the aspect ratio + # for size=(10, max_image_size) -> rescaled_size=(max_image_size, max_image_size) + # for size=(11, max_image_size+1) -> rescaled_size=(max_image_size, max_image_size*2) + images_list = [ + [ + self.resize_for_vision_encoder( + image, max_image_size["longest_edge"], resample=resample, input_data_format=input_data_format + ) + for image in images + ] + for images in images_list + ] + images_list_split_arrays = [] + palettes_list_split_arrays = [] + images_list_rows = [] + images_list_cols = [] + for images, palettes in zip(images_list, palettes_list): + split_image_arrays = [] + split_palettes_arrays = [] + image_rows = [] + image_cols = [] + for image, palette in zip(images, palettes): + split_image_array, rows, cols = self.split_image( + image, + max_image_size=max_image_size, + input_data_format=input_data_format, + ) + split_image_arrays.extend(split_image_array) + split_palettes_arrays.extend([palette] * len(split_image_array)) + image_rows.append(rows) + image_cols.append(cols) + images_list_split_arrays.append(split_image_arrays) + palettes_list_split_arrays.append(split_palettes_arrays) + images_list_rows.append(image_rows) + images_list_cols.append(image_cols) + images_list = images_list_split_arrays + palettes_list = palettes_list_split_arrays + else: + # We square the images to max_image_size + images_list = [ + [ + self.resize( + image=image, + size={"height": max_image_size["longest_edge"], "width": max_image_size["longest_edge"]}, + resample=resample, + input_data_format=input_data_format, + ) + for image in images + ] + for images in images_list + ] + images_list_rows = [[0] * len(images) for images in images_list] + images_list_cols = [[0] * len(images) for images in images_list] + + if do_convert_rgb: + images_list = [ + [convert_to_rgb(img, palette) for img, palette in zip(images, palettes)] + for images, palettes in zip(images_list, palettes_list) + ] + + if do_rescale: + images_list = [ + [self.rescale(image, rescale_factor, input_data_format=input_data_format) for image in images] + for images in images_list + ] + + if do_normalize: + images_list = [ + [ + self.normalize(image=image, mean=image_mean, std=image_std, input_data_format=input_data_format) + for image in images + ] + for images in images_list + ] + + pixel_attention_mask = None + if do_pad: + images_list, pixel_attention_mask = self.pad( + images_list, return_pixel_mask=True, return_tensors=return_tensors, input_data_format=input_data_format + ) + + if data_format is not None: + images_list = [ + [ + to_channel_dimension_format(image, data_format, input_channel_dim=input_data_format) + for image in images + ] + for images in images_list + ] + + # Faster tensor conversion + data = {"pixel_values": np.array(images_list) if do_pad and return_tensors is not None else images_list} + if pixel_attention_mask is not None: + data["pixel_attention_mask"] = ( + np.array(pixel_attention_mask) if do_pad and return_tensors is not None else pixel_attention_mask + ) + + encoding = BatchFeature(data=data, tensor_type=return_tensors) + + # This is needed for generating correct text inputs in the processor - we don't pad to the max number of images + if return_row_col_info: + encoding["rows"] = images_list_rows + encoding["cols"] = images_list_cols + + return encoding + + +__all__ = ["Idefics3ImageProcessor"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/modeling_idefics3.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/modeling_idefics3.py new file mode 100644 index 0000000000000000000000000000000000000000..82401437e23c6823ce1559f7412e88575dea6448 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/modeling_idefics3.py @@ -0,0 +1,1305 @@ +# coding=utf-8 +# Copyright 2024 the HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""PyTorch Idefics3 model.""" + +from dataclasses import dataclass +from typing import List, Optional, Tuple, Union + +import torch +import torch.utils.checkpoint +from torch import nn +from torch.nn import CrossEntropyLoss + +from ...activations import ACT2FN +from ...cache_utils import Cache, DynamicCache +from ...generation import GenerationMixin +from ...modeling_attn_mask_utils import _prepare_4d_attention_mask +from ...modeling_outputs import BaseModelOutput, ModelOutput +from ...modeling_utils import PreTrainedModel +from ...utils import ( + add_start_docstrings, + add_start_docstrings_to_model_forward, + is_flash_attn_2_available, + is_flash_attn_greater_or_equal_2_10, + logging, + replace_return_docstrings, +) +from ..auto import AutoModel +from .configuration_idefics3 import Idefics3Config, Idefics3VisionConfig + + +if is_flash_attn_2_available(): + from ...modeling_flash_attention_utils import _flash_attention_forward + + +logger = logging.get_logger(__name__) + +_CONFIG_FOR_DOC = "Idefics3Config" + + +@dataclass +class Idefics3BaseModelOutputWithPast(ModelOutput): + """ + Base class for Idefics3 model's outputs that may also contain a past key/values (to speed up sequential decoding). + Args: + last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + Sequence of hidden-states at the output of the last layer of the model. + If `past_key_values` is used only the last hidden-state of the sequences of shape `(batch_size, 1, + hidden_size)` is output. + past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape + `(batch_size, num_heads, sequence_length, embed_size_per_head)`) and optionally if + `config.is_encoder_decoder=True` 2 additional tensors of shape `(batch_size, num_heads, + encoder_sequence_length, embed_size_per_head)`. + Contains pre-computed hidden-states (key and values in the self-attention blocks and optionally if + `config.is_encoder_decoder=True` in the cross-attention blocks) that can be used (see `past_key_values` + input) to speed up sequential decoding. + hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings, if the model has an embedding layer, + + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. + Hidden-states of the model at the output of each layer plus the optional initial embedding outputs. + attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. + Attentions weights after the attention softmax, used to compute the weighted average in the self-attention + heads. + image_hidden_states (`tuple(torch.FloatTensor)`, *optional*): + Tuple of `torch.FloatTensor` (one for the output of the image embeddings, `(batch_size, num_images, + sequence_length, hidden_size)`. + image_hidden_states of the model produced by the vision encoder + """ + + last_hidden_state: torch.FloatTensor = None + past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None + hidden_states: Optional[Tuple[torch.FloatTensor]] = None + attentions: Optional[Tuple[torch.FloatTensor]] = None + image_hidden_states: Optional[Tuple[torch.FloatTensor]] = None + + +@dataclass +class Idefics3CausalLMOutputWithPast(ModelOutput): + """ + Base class for Idefics causal language model (or autoregressive) outputs. + + Args: + loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned when `labels` is provided): + Language modeling loss (for next-token prediction). + logits (`torch.FloatTensor` of shape `(batch_size, sequence_length, config.vocab_size)`): + Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax). + past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape + `(batch_size, num_heads, sequence_length, embed_size_per_head)`) + Contains pre-computed hidden-states (key and values in the self-attention blocks) that can be used (see + `past_key_values` input) to speed up sequential decoding. + hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings, if the model has an embedding layer, + + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. + Hidden-states of the model at the output of each layer plus the optional initial embedding outputs. + attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. + Attentions weights after the attention softmax, used to compute the weighted average in the self-attention + heads. + image_hidden_states (`tuple(torch.FloatTensor)`, *optional*): + Tuple of `torch.FloatTensor` (one for the output of the image embeddings, `(batch_size, num_images, + sequence_length, hidden_size)`. + image_hidden_states of the model produced by the vision encoder + """ + + loss: Optional[torch.FloatTensor] = None + logits: torch.FloatTensor = None + past_key_values: Optional[List[torch.FloatTensor]] = None + hidden_states: Optional[Tuple[torch.FloatTensor]] = None + attentions: Optional[Tuple[torch.FloatTensor]] = None + image_hidden_states: Optional[Tuple[torch.FloatTensor]] = None + + +# Copied from transformers.models.idefics2.modeling_idefics2.Idefics2VisionEmbeddings with Idefics2->Idefics3 +class Idefics3VisionEmbeddings(nn.Module): + """ + This is a modified version of `siglip.modelign_siglip.SiglipVisionEmbeddings` to enable images of variable + resolution. + + The modifications are adapted from [Patch n' Pack: NaViT, a Vision Transformer for any Aspect Ratio and Resolution](https://arxiv.org/abs/2307.06304) + which allows treating images in their native aspect ratio and without the need to resize them to the same + fixed size. In particular, we start from the original pre-trained SigLIP model + (which uses images of fixed-size square images) and adapt it by training on images of variable resolutions. + """ + + def __init__(self, config: Idefics3VisionConfig): + super().__init__() + self.embed_dim = config.hidden_size + self.image_size = config.image_size + self.patch_size = config.patch_size + + self.patch_embedding = nn.Conv2d( + in_channels=config.num_channels, + out_channels=self.embed_dim, + kernel_size=self.patch_size, + stride=self.patch_size, + padding="valid", + ) + + self.num_patches_per_side = self.image_size // self.patch_size + self.num_patches = self.num_patches_per_side**2 + self.num_positions = self.num_patches + self.position_embedding = nn.Embedding(self.num_positions, self.embed_dim) + + def forward(self, pixel_values: torch.FloatTensor, patch_attention_mask: torch.BoolTensor) -> torch.Tensor: + batch_size, _, max_im_h, max_im_w = pixel_values.shape + + patch_embeds = self.patch_embedding(pixel_values) + embeddings = patch_embeds.flatten(2).transpose(1, 2) + + max_nb_patches_h, max_nb_patches_w = max_im_h // self.patch_size, max_im_w // self.patch_size + boundaries = torch.arange(1 / self.num_patches_per_side, 1.0, 1 / self.num_patches_per_side) + position_ids = torch.full(size=(batch_size, max_nb_patches_h * max_nb_patches_w), fill_value=0) + + for batch_idx, p_attn_mask in enumerate(patch_attention_mask): + nb_patches_h = p_attn_mask[:, 0].sum() + nb_patches_w = p_attn_mask[0].sum() + + fractional_coords_h = torch.arange(0, 1 - 1e-6, 1 / nb_patches_h) + fractional_coords_w = torch.arange(0, 1 - 1e-6, 1 / nb_patches_w) + + bucket_coords_h = torch.bucketize(fractional_coords_h, boundaries, right=True) + bucket_coords_w = torch.bucketize(fractional_coords_w, boundaries, right=True) + + pos_ids = (bucket_coords_h[:, None] * self.num_patches_per_side + bucket_coords_w).flatten() + position_ids[batch_idx][p_attn_mask.view(-1).cpu()] = pos_ids + + position_ids = position_ids.to(self.position_embedding.weight.device) + embeddings = embeddings + self.position_embedding(position_ids) + return embeddings + + +# Copied from transformers.models.siglip.modeling_siglip.SiglipAttention with Siglip->Idefics3Vision +class Idefics3VisionAttention(nn.Module): + """Multi-headed attention from 'Attention Is All You Need' paper""" + + # Copied from transformers.models.clip.modeling_clip.CLIPAttention.__init__ + def __init__(self, config): + super().__init__() + self.config = config + self.embed_dim = config.hidden_size + self.num_heads = config.num_attention_heads + self.head_dim = self.embed_dim // self.num_heads + if self.head_dim * self.num_heads != self.embed_dim: + raise ValueError( + f"embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim} and `num_heads`:" + f" {self.num_heads})." + ) + self.scale = self.head_dim**-0.5 + self.dropout = config.attention_dropout + + self.k_proj = nn.Linear(self.embed_dim, self.embed_dim) + self.v_proj = nn.Linear(self.embed_dim, self.embed_dim) + self.q_proj = nn.Linear(self.embed_dim, self.embed_dim) + self.out_proj = nn.Linear(self.embed_dim, self.embed_dim) + + # Ignore copy + self.is_causal = False + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor]]: + """Input shape: Batch x Time x Channel""" + + batch_size, q_len, _ = hidden_states.size() + + query_states = self.q_proj(hidden_states) + key_states = self.k_proj(hidden_states) + value_states = self.v_proj(hidden_states) + + query_states = query_states.view(batch_size, q_len, self.num_heads, self.head_dim).transpose(1, 2) + key_states = key_states.view(batch_size, q_len, self.num_heads, self.head_dim).transpose(1, 2) + value_states = value_states.view(batch_size, q_len, self.num_heads, self.head_dim).transpose(1, 2) + + k_v_seq_len = key_states.shape[-2] + attn_weights = torch.matmul(query_states, key_states.transpose(2, 3)) * self.scale + + if attn_weights.size() != (batch_size, self.num_heads, q_len, k_v_seq_len): + raise ValueError( + f"Attention weights should be of size {(batch_size, self.num_heads, q_len, k_v_seq_len)}, but is" + f" {attn_weights.size()}" + ) + + if attention_mask is not None: + if attention_mask.size() != (batch_size, 1, q_len, k_v_seq_len): + raise ValueError( + f"Attention mask should be of size {(batch_size, 1, q_len, k_v_seq_len)}, but is {attention_mask.size()}" + ) + attn_weights = attn_weights + attention_mask + + # upcast attention to fp32 + attn_weights = nn.functional.softmax(attn_weights, dim=-1, dtype=torch.float32).to(query_states.dtype) + attn_weights = nn.functional.dropout(attn_weights, p=self.dropout, training=self.training) + attn_output = torch.matmul(attn_weights, value_states) + + if attn_output.size() != (batch_size, self.num_heads, q_len, self.head_dim): + raise ValueError( + f"`attn_output` should be of size {(batch_size, self.num_heads, q_len, self.head_dim)}, but is" + f" {attn_output.size()}" + ) + + attn_output = attn_output.transpose(1, 2).contiguous() + attn_output = attn_output.reshape(batch_size, q_len, self.embed_dim) + + attn_output = self.out_proj(attn_output) + + return attn_output, attn_weights + + +# Copied from transformers.models.idefics2.modeling_idefics2.Idefics2VisionFlashAttention2 with Idefics2->Idefics3 +class Idefics3VisionFlashAttention2(Idefics3VisionAttention): + """ + Idefics3Vision flash attention module. This module inherits from `Idefics3VisionAttention` as the weights of the module stays + untouched. The only required change would be on the forward pass where it needs to correctly call the public API of + flash attention and deal with padding tokens in case the input contains any of them. + """ + + def __init__(self, *args, **kwargs): + super().__init__(*args, **kwargs) + + # TODO: Should be removed once Flash Attention for RoCm is bumped to 2.1. + # flash_attn<2.1 generates top-left aligned causal mask, while what is needed here is bottom-right alignment, that was made default for flash_attn>=2.1. This attribute is used to handle this difference. Reference: https://github.com/Dao-AILab/flash-attention/releases/tag/v2.1.0. + # Beware that with flash_attn<2.1, using q_seqlen != k_seqlen (except for the case q_seqlen == 1) produces a wrong mask (top-left). + self._flash_attn_uses_top_left_mask = not is_flash_attn_greater_or_equal_2_10() + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.LongTensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_value: Optional[Cache] = None, + output_attentions: bool = False, + use_cache: bool = False, + **kwargs, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]: + output_attentions = False + + bsz, q_len, _ = hidden_states.size() + + query_states = self.q_proj(hidden_states) + key_states = self.k_proj(hidden_states) + value_states = self.v_proj(hidden_states) + + # Flash attention requires the input to have the shape + # batch_size x seq_length x head_dim x hidden_dim + # therefore we just need to keep the original shape + query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim) + key_states = key_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2) + value_states = value_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2) + + kv_seq_len = key_states.shape[-2] + if past_key_value is not None: + kv_seq_len += past_key_value.get_usable_length(kv_seq_len, self.layer_idx) + + # TODO: These transpose are quite inefficient but Flash Attention requires the layout [batch_size, sequence_length, num_heads, head_dim]. We would need to refactor the KV cache + # to be able to avoid many of these transpose/reshape/view. + key_states = key_states.transpose(1, 2) + value_states = value_states.transpose(1, 2) + + dropout_rate = self.dropout if self.training else 0.0 + + # In PEFT, usually we cast the layer norms in float32 for training stability reasons + # therefore the input hidden states gets silently casted in float32. Hence, we need + # cast them back in the correct dtype just to be sure everything works as expected. + # This might slowdown training & inference so it is recommended to not cast the LayerNorms + # in fp32. (Idefics3VisionRMSNorm handles it correctly) + + input_dtype = query_states.dtype + if input_dtype == torch.float32: + if torch.is_autocast_enabled(): + target_dtype = torch.get_autocast_gpu_dtype() + # Handle the case where the model is quantized + elif hasattr(self.config, "_pre_quantization_dtype"): + target_dtype = self.config._pre_quantization_dtype + else: + target_dtype = self.q_proj.weight.dtype + + logger.warning_once( + f"The input hidden states seems to be silently casted in float32, this might be related to" + f" the fact you have upcasted embedding or layer norm layers in float32. We will cast back the input in" + f" {target_dtype}." + ) + + query_states = query_states.to(target_dtype) + key_states = key_states.to(target_dtype) + value_states = value_states.to(target_dtype) + + attn_output = _flash_attention_forward( + query_states, + key_states, + value_states, + attention_mask, + q_len, + dropout=dropout_rate, + is_causal=self.is_causal, + use_top_left_mask=self._flash_attn_uses_top_left_mask, + ) + + attn_output = attn_output.reshape(bsz, q_len, self.embed_dim).contiguous() + attn_output = self.out_proj(attn_output) + + if not output_attentions: + attn_weights = None + + return attn_output, attn_weights + + +IDEFICS_VISION_ATTENTION_CLASSES = { + "eager": Idefics3VisionAttention, + "flash_attention_2": Idefics3VisionFlashAttention2, +} + + +# Copied from transformers.models.siglip.modeling_siglip.SiglipMLP with Siglip->Idefics3Vision +class Idefics3VisionMLP(nn.Module): + def __init__(self, config): + super().__init__() + self.config = config + self.activation_fn = ACT2FN[config.hidden_act] + self.fc1 = nn.Linear(config.hidden_size, config.intermediate_size) + self.fc2 = nn.Linear(config.intermediate_size, config.hidden_size) + + def forward(self, hidden_states: torch.Tensor) -> torch.Tensor: + hidden_states = self.fc1(hidden_states) + hidden_states = self.activation_fn(hidden_states) + hidden_states = self.fc2(hidden_states) + return hidden_states + + +class Idefics3SimpleMLP(nn.Module): + def __init__(self, config): + super().__init__() + input_size = config.vision_config.hidden_size * (config.scale_factor**2) + output_size = config.text_config.hidden_size + self.proj = nn.Linear(input_size, output_size, bias=False) + + def forward(self, x): + return self.proj(x) + + +# Copied from transformers.models.idefics2.modeling_idefics2.Idefics2EncoderLayer with Idefics2->Idefics3 +class Idefics3EncoderLayer(nn.Module): + def __init__(self, config: Idefics3VisionConfig): + super().__init__() + self.embed_dim = config.hidden_size + self.self_attn = IDEFICS_VISION_ATTENTION_CLASSES[config._attn_implementation](config) + self.layer_norm1 = nn.LayerNorm(self.embed_dim, eps=config.layer_norm_eps) + self.mlp = Idefics3VisionMLP(config) + self.layer_norm2 = nn.LayerNorm(self.embed_dim, eps=config.layer_norm_eps) + + # Copied from transformers.models.siglip.modeling_siglip.SiglipEncoderLayer.forward + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: torch.Tensor, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.FloatTensor]: + """ + Args: + hidden_states (`torch.FloatTensor`): + Input to the layer of shape `(batch, seq_len, embed_dim)`. + attention_mask (`torch.FloatTensor`): + Attention mask of shape `(batch, 1, q_len, k_v_seq_len)` where padding elements are indicated by very large negative values. + output_attentions (`bool`, *optional*, defaults to `False`): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + """ + residual = hidden_states + + hidden_states = self.layer_norm1(hidden_states) + hidden_states, attn_weights = self.self_attn( + hidden_states=hidden_states, + attention_mask=attention_mask, + output_attentions=output_attentions, + ) + hidden_states = residual + hidden_states + + residual = hidden_states + hidden_states = self.layer_norm2(hidden_states) + hidden_states = self.mlp(hidden_states) + hidden_states = residual + hidden_states + + outputs = (hidden_states,) + + if output_attentions: + outputs += (attn_weights,) + + return outputs + + +# Copied from transformers.models.siglip.modeling_siglip.SiglipEncoder with Siglip->Idefics3 +class Idefics3Encoder(nn.Module): + """ + Transformer encoder consisting of `config.num_hidden_layers` self attention layers. Each layer is a + [`Idefics3EncoderLayer`]. + + Args: + config: Idefics3Config + """ + + def __init__(self, config: Idefics3Config): + super().__init__() + self.config = config + self.layers = nn.ModuleList([Idefics3EncoderLayer(config) for _ in range(config.num_hidden_layers)]) + self.gradient_checkpointing = False + + # Ignore copy + def forward( + self, + inputs_embeds, + attention_mask: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, BaseModelOutput]: + r""" + Args: + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. + This is useful if you want more control over how to convert `input_ids` indices into associated vectors + than the model's internal embedding lookup matrix. + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors + for more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + encoder_states = () if output_hidden_states else None + all_attentions = () if output_attentions else None + + hidden_states = inputs_embeds + for encoder_layer in self.layers: + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + if self.gradient_checkpointing and self.training: + layer_outputs = self._gradient_checkpointing_func( + encoder_layer.__call__, + hidden_states, + attention_mask, + output_attentions, + ) + else: + layer_outputs = encoder_layer( + hidden_states, + attention_mask, + output_attentions=output_attentions, + ) + + hidden_states = layer_outputs[0] + + if output_attentions: + all_attentions = all_attentions + (layer_outputs[1],) + + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + + if not return_dict: + return tuple(v for v in [hidden_states, encoder_states, all_attentions] if v is not None) + return BaseModelOutput( + last_hidden_state=hidden_states, hidden_states=encoder_states, attentions=all_attentions + ) + + +# Copied from transformers.models.llama.modeling_llama.repeat_kv +def repeat_kv(hidden_states: torch.Tensor, n_rep: int) -> torch.Tensor: + """ + This is the equivalent of torch.repeat_interleave(x, dim=1, repeats=n_rep). The hidden states go from (batch, + num_key_value_heads, seqlen, head_dim) to (batch, num_attention_heads, seqlen, head_dim) + """ + batch, num_key_value_heads, slen, head_dim = hidden_states.shape + if n_rep == 1: + return hidden_states + hidden_states = hidden_states[:, :, None, :, :].expand(batch, num_key_value_heads, n_rep, slen, head_dim) + return hidden_states.reshape(batch, num_key_value_heads * n_rep, slen, head_dim) + + +# Copied from transformers.models.llama.modeling_llama.LlamaRMSNorm with Llama->Idefics3 +class Idefics3RMSNorm(nn.Module): + def __init__(self, hidden_size, eps=1e-6): + """ + Idefics3RMSNorm is equivalent to T5LayerNorm + """ + super().__init__() + self.weight = nn.Parameter(torch.ones(hidden_size)) + self.variance_epsilon = eps + + def forward(self, hidden_states): + input_dtype = hidden_states.dtype + hidden_states = hidden_states.to(torch.float32) + variance = hidden_states.pow(2).mean(-1, keepdim=True) + hidden_states = hidden_states * torch.rsqrt(variance + self.variance_epsilon) + return self.weight * hidden_states.to(input_dtype) + + def extra_repr(self): + return f"{tuple(self.weight.shape)}, eps={self.variance_epsilon}" + + +class Idefics3Connector(nn.Module): + def __init__(self, config): + super().__init__() + self.scale_factor = config.scale_factor + self.modality_projection = Idefics3SimpleMLP(config) + + def pixel_shuffle(self, x, scale_factor=2): + bsz, seq, embed_dim = x.size() + height = width = int(seq**0.5) + x = x.view(bsz, height, width, embed_dim) + x = x.view(bsz, height, int(width / scale_factor), embed_dim * scale_factor) + x = x.permute(0, 2, 1, 3) + x = x.reshape(bsz, int(width / scale_factor), int(height / scale_factor), embed_dim * (scale_factor**2)) + x = x.permute(0, 2, 1, 3) + x = x.reshape(bsz, int(seq / (scale_factor**2)), embed_dim * (scale_factor**2)) + return x + + def forward(self, image_hidden_states): + image_hidden_states = self.pixel_shuffle(image_hidden_states, self.scale_factor) + image_hidden_states = self.modality_projection(image_hidden_states) + return image_hidden_states + + +IDEFICS3_START_DOCSTRING = r""" + This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the + library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads + etc.) + + This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. + Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage + and behavior. + + Parameters: + config ([`Idefics3Config`] or [`Idefics3VisionConfig`]): + Model configuration class with all the parameters of the model. Initializing with a config file does not + load the weights associated with the model, only the configuration. Check out the + [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + + +@add_start_docstrings( + "The bare Idefics3 Model outputting raw hidden-states without any specific head on top.", + IDEFICS3_START_DOCSTRING, +) +class Idefics3PreTrainedModel(PreTrainedModel): + config_class = Idefics3Config + base_model_prefix = "model" + supports_gradient_checkpointing = True + _no_split_modules = ["Idefics3VisionAttention", "Idefics3DecoderLayer"] + _skip_keys_device_placement = "past_key_values" + _supports_flash_attn_2 = True + _supports_sdpa = True + _supports_cache_class = True + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2PreTrainedModel._init_weights + def _init_weights(self, module): + std = ( + self.config.text_config.initializer_range + if hasattr(self.config, "initializer_range") + else self.config.text_config.initializer_range + ) + + if hasattr(module, "class_embedding"): + module.class_embedding.data.normal_(mean=0.0, std=std) + + if isinstance(module, (nn.Linear, nn.Conv2d)): + module.weight.data.normal_(mean=0.0, std=std) + if module.bias is not None: + module.bias.data.zero_() + elif isinstance(module, nn.Embedding): + module.weight.data.normal_(mean=0.0, std=std) + if module.padding_idx is not None: + module.weight.data[module.padding_idx].zero_() + + +IDEFICS3_VISION_START_DOCSTRING = r""" + This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the + library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads + etc.) + + This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. + Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage + and behavior. + + Parameters: + config ([`Idefics3VisionConfig`]): + Model configuration class with all the parameters of the model. Initializing with a config file does not + load the weights associated with the model, only the configuration. Check out the + [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + + +@add_start_docstrings( + "The Idefics3 Vision Transformer Model outputting raw image embedding.", + IDEFICS3_VISION_START_DOCSTRING, +) +class Idefics3VisionTransformer(Idefics3PreTrainedModel): + config_class = Idefics3VisionConfig + _supports_sdpa = False + + def __init__(self, config: Idefics3VisionConfig): + super().__init__(config) + embed_dim = config.hidden_size + + self.embeddings = Idefics3VisionEmbeddings(config) + self.encoder = Idefics3Encoder(config) + self.patch_size = config.patch_size + self.post_layernorm = nn.LayerNorm(embed_dim, eps=config.layer_norm_eps) + self._use_flash_attention_2 = config._attn_implementation == "flash_attention_2" + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2VisionTransformer.get_input_embeddings + def get_input_embeddings(self): + return self.embeddings + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2VisionTransformer.set_input_embeddings + def set_input_embeddings(self, value): + self.embeddings = value + + def forward( + self, + pixel_values, + patch_attention_mask: Optional[torch.BoolTensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, BaseModelOutput]: + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + batch_size = pixel_values.size(0) + if patch_attention_mask is None: + patch_size = self.patch_size + patch_attention_mask = torch.ones( + ( + batch_size, + pixel_values.size(2) // patch_size, + pixel_values.size(3) // patch_size, + ) + ) + patch_attention_mask = patch_attention_mask.to(dtype=torch.bool, device=pixel_values.device) + + hidden_states = self.embeddings(pixel_values=pixel_values, patch_attention_mask=patch_attention_mask) + + patch_attention_mask = patch_attention_mask.view(batch_size, -1) + # The call to `_upad_input` in `_flash_attention_forward` is expensive + # So when the `patch_attention_mask` is full of 1s (i.e. attending to the whole sequence), + # avoiding passing the attention_mask, which is equivalent to attending to the full sequence + if not torch.any(~patch_attention_mask): + patch_attention_mask = None + elif not self._use_flash_attention_2: + patch_attention_mask = _prepare_4d_attention_mask(patch_attention_mask, hidden_states.dtype) + + encoder_outputs = self.encoder( + inputs_embeds=hidden_states, + attention_mask=patch_attention_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + + last_hidden_state = encoder_outputs[0] + last_hidden_state = self.post_layernorm(last_hidden_state) + + if not return_dict: + return (last_hidden_state,) + encoder_outputs[1:] + + return BaseModelOutput( + last_hidden_state=last_hidden_state, + hidden_states=encoder_outputs.hidden_states, + attentions=encoder_outputs.attentions, + ) + + +IDEFICS3_INPUTS_DOCSTRING = r""" + Args: + input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`): + Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide + it. + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for details. + + [What are input IDs?](../glossary#input-ids) + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for details. + + If `past_key_values` is used, optionally only the last `decoder_input_ids` have to be input (see + `past_key_values`). + + If you want to change padding behavior, you should read [`modeling_opt._prepare_decoder_attention_mask`] + and modify to your needs. See diagram 1 in [the paper](https://arxiv.org/abs/1910.13461) for more + information on the default strategy. + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + position_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0, + config.n_positions - 1]`. [What are position IDs?](../glossary#position-ids) + past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape + `(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of shape + `(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)`. + + Contains pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention + blocks) that can be used (see `past_key_values` input) to speed up sequential decoding. + + If `past_key_values` are used, the user can optionally input only the last `decoder_input_ids` (those that + don't have their past key value states given to this model) of shape `(batch_size, 1)` instead of all + `decoder_input_ids` of shape `(batch_size, sequence_length)`. + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This + is useful if you want more control over how to convert `input_ids` indices into associated vectors than the + model's internal embedding lookup matrix. + pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, image_size, image_size)): + The tensors corresponding to the input images. Pixel values can be obtained using + [`AutoImageProcessor`]. See [`CLIPImageProcessor.__call__`] for details ([]`LlavaProcessor`] uses + [`CLIPImageProcessor`] for processing images). + pixel_attention_mask (`torch.Tensor` of shape `(batch_size, image_size, image_size)`, *optional*): + Mask to avoid performing attention on padding pixel indices. + image_hidden_states (`torch.FloatTensor` of shape `(batch_size, num_channels, image_size, image_size)`): + The hidden states of the image encoder after modality projection. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + cache_position (`torch.LongTensor` of shape `(sequence_length)`, *optional*): + Indices depicting the position of the input sequence tokens in the sequence. Contrarily to `position_ids`, + this tensor is not affected by padding. It is used to update the cache in the correct position and to infer + the complete sequence length. +""" + + +@add_start_docstrings( + """Idefics3 model consisting of a SIGLIP vision encoder and Llama3 language decoder""", + IDEFICS3_START_DOCSTRING, +) +class Idefics3Model(Idefics3PreTrainedModel): + def __init__(self, config: Idefics3Config): + super().__init__(config) + self.padding_idx = self.config.text_config.pad_token_id + self.vocab_size = self.config.text_config.vocab_size + + self.vision_model = Idefics3VisionTransformer._from_config(config.vision_config) + self.connector = Idefics3Connector(config) + self.text_model = AutoModel.from_config(config.text_config) + + self.image_seq_len = int( + ((config.vision_config.image_size // config.vision_config.patch_size) ** 2) / (config.scale_factor**2) + ) + self.image_token_id = self.config.image_token_id + + self._use_flash_attention_2 = config.text_config._attn_implementation == "flash_attention_2" + + self.post_init() + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2Model.enable_input_require_grads + def enable_input_require_grads(self): + """ + Enables the gradients for the input embeddings. + + This is useful for lora when using gradient checkpointing. + c.f. https://github.com/huggingface/peft/issues/1402#issuecomment-1913675032 + + Override to set output.requires_grad = True for both the decoder's and vision model's embeddings. + """ + + def get_lowest_module(module): + if len(list(module.children())) == 0: + # If the module has no children, it is a leaf module (e.g., Linear, Conv2d, etc.) + return module + else: + # Recursively call the function on each child module + return get_lowest_module(list(module.children())[0]) + + def make_inputs_require_grads(module, input, output): + output.requires_grad_(True) + + self._text_require_grads_hook = self.get_input_embeddings().register_forward_hook(make_inputs_require_grads) + self._vision_require_grads_hook = get_lowest_module(self.vision_model).register_forward_hook( + make_inputs_require_grads + ) + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2Model.disable_input_require_grads + def disable_input_require_grads(self): + self._text_require_grads_hook.remove() + self._vision_require_grads_hook.remove() + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2Model.get_input_embeddings + def get_input_embeddings(self): + return self.text_model.get_input_embeddings() + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2Model.set_input_embeddings + def set_input_embeddings(self, value): + self.text_model.set_input_embeddings(value) + + def inputs_merger( + self, + input_ids: torch.LongTensor, + inputs_embeds: Optional[torch.Tensor], + image_hidden_states: Optional[torch.Tensor], + ): + """ + This method aims at merging the token embeddings with the image hidden states into one single sequence of vectors that are fed to the transformer LM. + The merging happens as follows: + - The text token sequence is: `tok_1 tok_2 tok_3 ... tok_4`. + - We get the image hidden states for the image through the vision encoder and that hidden state, after a pixel shuffle operation, is then projected into the text embedding space. + We thus have a sequence of image hidden states of size (1, image_seq_len, hidden_dim), where 1 is for batch_size of 1 image and hidden_dim is the hidden_dim of the LM transformer. + - The merging happens so that we obtain the following sequence: `vector_tok_1 vector_tok_2 vector_tok_3 vector_fake_tok_around_image {sequence of image_seq_len image hidden states} vector_fake_toke_around_image vector_tok_4`. That sequence is fed to the LM. + - To fit the format of that sequence, `input_ids`, `input_embeds`, `attention_mask` are all 3 adapted to insert the image hidden states. + """ + num_images, _, vision_hidden_size = image_hidden_states.shape + special_image_token_mask = input_ids == self.image_token_id + # Fixes RuntimeError: a leaf Variable that requires grad is being used in an in-place operation. + new_inputs_embeds = inputs_embeds.clone() + reshaped_image_hidden_states = image_hidden_states.view(-1, vision_hidden_size) + # cast to the dtype of the input_embeds to support quantized models + reshaped_image_hidden_states = reshaped_image_hidden_states.to(inputs_embeds.device, inputs_embeds.dtype) + new_inputs_embeds[special_image_token_mask] = reshaped_image_hidden_states + return new_inputs_embeds + + @add_start_docstrings_to_model_forward( + """ + Inputs fed to the model can have an arbitrary number of images. To account for this, pixel_values fed to + the model have image padding -> (batch_size, max_num_images, 3, max_heights, max_widths) where + max_num_images is the maximum number of images among the batch_size samples in the batch. + Padding images are not needed beyond padding the pixel_values at the entrance of the model. + For efficiency, we only pass through the vision_model's forward the real images by + discarding the padding images i.e. pixel_values of size (image_batch_size, 3, height, width) where + image_batch_size would be 7 when num_images_per_sample=[1, 3, 1, 2] and max_num_images would be 3. + """, + IDEFICS3_INPUTS_DOCSTRING, + ) + def forward( + self, + input_ids: torch.LongTensor = None, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_values: Optional[List[torch.FloatTensor]] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + pixel_values: Optional[torch.FloatTensor] = None, + pixel_attention_mask: Optional[torch.BoolTensor] = None, + image_hidden_states: Optional[torch.FloatTensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + cache_position: Optional[torch.LongTensor] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, Idefics3BaseModelOutputWithPast]: + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + use_cache = use_cache if use_cache is not None else self.config.use_cache + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if self.training and self.text_model.gradient_checkpointing and use_cache: + logger.warning_once( + "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..." + ) + use_cache = False + + # retrieve input_ids and inputs_embeds + if input_ids is not None: + batch_size, seq_length = input_ids.shape + elif inputs_embeds is not None: + batch_size, seq_length, _ = inputs_embeds.shape + else: + raise ValueError("You have to specify either input_ids or inputs_embeds") + + past_seen_tokens = 0 + if use_cache: + if past_key_values is None: + past_key_values = DynamicCache() + past_seen_tokens = past_key_values.get_seq_length() + + if inputs_embeds is not None and input_ids is None and past_seen_tokens == 0: + raise ValueError("When first calling the model, if input_embeds are passed, input_ids should not be None.") + + if inputs_embeds is None: + inputs_embeds = self.text_model.get_input_embeddings()(input_ids).to(self.device) + + # START VISUAL INPUTS INTEGRATION + if pixel_values is not None and image_hidden_states is not None: + raise ValueError("You cannot specify both pixel_values and image_hidden_states at the same time") + elif pixel_values is not None: + batch_size, num_images, num_channels, height, width = pixel_values.shape + pixel_values = pixel_values.to(dtype=self.dtype) # fp16 compatibility + pixel_values = pixel_values.view(batch_size * num_images, *pixel_values.shape[2:]) + + # Remove padding images - padding images are full 0. + nb_values_per_image = pixel_values.shape[1:].numel() + real_images_inds = (pixel_values == 0.0).sum(dim=(-1, -2, -3)) != nb_values_per_image + pixel_values = pixel_values[real_images_inds].contiguous() + + # Handle the vision attention mask + if pixel_attention_mask is None: + pixel_attention_mask = torch.ones( + size=(pixel_values.size(0), pixel_values.size(2), pixel_values.size(3)), + dtype=torch.bool, + device=pixel_values.device, + ) + else: + # Remove padding images from the mask + pixel_attention_mask = pixel_attention_mask.view( + batch_size * num_images, *pixel_attention_mask.shape[2:] + ) + pixel_attention_mask = pixel_attention_mask[real_images_inds].contiguous() + + patch_size = self.config.vision_config.patch_size + patches_subgrid = pixel_attention_mask.unfold(dimension=1, size=patch_size, step=patch_size) + patches_subgrid = patches_subgrid.unfold(dimension=2, size=patch_size, step=patch_size) + patch_attention_mask = (patches_subgrid.sum(dim=(-1, -2)) > 0).bool() + + # Get sequence from the vision encoder + image_hidden_states = self.vision_model( + pixel_values=pixel_values, + patch_attention_mask=patch_attention_mask, + ).last_hidden_state + + # Modality projection & resampling + image_hidden_states = self.connector(image_hidden_states) + + elif image_hidden_states is not None: + image_hidden_states = image_hidden_states.to(dtype=self.dtype, device=input_ids.device) + + if past_seen_tokens == 0 and inputs_embeds is not None and image_hidden_states is not None: + # When we generate, we don't want to replace the potential image_token_id that we generated by images + # that simply don't exist + inputs_embeds = self.inputs_merger( + input_ids=input_ids, + inputs_embeds=inputs_embeds, + image_hidden_states=image_hidden_states, + ) + + outputs = self.text_model( + inputs_embeds=inputs_embeds, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_values=past_key_values, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + cache_position=cache_position, + return_dict=return_dict, + ) + + if not return_dict: + return tuple(v for v in [*outputs, image_hidden_states] if v is not None) + + return Idefics3BaseModelOutputWithPast( + last_hidden_state=outputs.last_hidden_state, + past_key_values=outputs.past_key_values, + hidden_states=outputs.hidden_states, + attentions=outputs.attentions, + image_hidden_states=image_hidden_states, + ) + + +@add_start_docstrings( + """The Idefics3 Model with a language modeling head. It is made up a SigLIP vision encoder, with a language modeling head on top. """, + IDEFICS3_START_DOCSTRING, +) +class Idefics3ForConditionalGeneration(Idefics3PreTrainedModel, GenerationMixin): + _tied_weights_keys = ["lm_head.weight"] + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2ForConditionalGeneration.__init__ with Idefics2->Idefics3 + def __init__(self, config): + super().__init__(config) + self.model = Idefics3Model(config) + self.image_token_id = self.config.image_token_id + + self.lm_head = nn.Linear(config.text_config.hidden_size, config.text_config.vocab_size, bias=False) + self.vocab_size = config.text_config.vocab_size + + # Initialize weights and apply final processing + self.post_init() + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2ForConditionalGeneration.enable_input_require_grads + def enable_input_require_grads(self): + """ + Enables the gradients for the input embeddings. This is useful for fine-tuning adapter weights while keeping + the model weights fixed. + """ + + def make_inputs_require_grads(module, input, output): + output.requires_grad_(True) + + self._text_require_grads_hook = self.get_input_embeddings().register_forward_hook(make_inputs_require_grads) + self._vision_require_grads_hook = self.model.vision_model.get_input_embeddings().register_forward_hook( + make_inputs_require_grads + ) + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2ForConditionalGeneration.disable_input_require_grads + def disable_input_require_grads(self): + self._text_require_grads_hook.remove() + self._vision_require_grads_hook.remove() + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2ForConditionalGeneration.get_input_embeddings + def get_input_embeddings(self): + return self.model.text_model.get_input_embeddings() + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2ForConditionalGeneration.set_input_embeddings + def set_input_embeddings(self, value): + self.model.text_model.set_input_embeddings(value) + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2ForConditionalGeneration.get_output_embeddings + def get_output_embeddings(self): + return self.lm_head + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2ForConditionalGeneration.set_output_embeddings + def set_output_embeddings(self, new_embeddings): + self.lm_head = new_embeddings + + @add_start_docstrings_to_model_forward(IDEFICS3_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=Idefics3CausalLMOutputWithPast, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: torch.LongTensor = None, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_values: Optional[List[torch.FloatTensor]] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + pixel_values: Optional[torch.FloatTensor] = None, + pixel_attention_mask: Optional[torch.BoolTensor] = None, + image_hidden_states: Optional[torch.FloatTensor] = None, + labels: Optional[torch.LongTensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + cache_position: Optional[torch.LongTensor] = None, + return_dict: Optional[bool] = None, + logits_to_keep: Union[int, torch.Tensor] = 0, + ) -> Union[Tuple, Idefics3CausalLMOutputWithPast]: + r""" + labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Labels for computing the masked language modeling loss. Indices should either be in `[0, ..., + config.vocab_size]` or `model.image_token_id` (where `model` is your instance of `Idefics3ForConditionalGeneration`). + Tokens with indices set to `model.image_token_id` are ignored (masked), the loss is only + computed for the tokens with labels in `[0, ..., config.vocab_size]`. + + logits_to_keep (`int` or `torch.Tensor`, *optional*): + If an `int`, compute logits for the last `logits_to_keep` tokens. If `0`, calculate logits for all + `input_ids` (special case). Only last token logits are needed for generation, and calculating them only for that + token can save memory, which becomes pretty significant for long sequences or large vocabulary size. + If a `torch.Tensor`, must be 1D corresponding to the indices to keep in the sequence length dimension. + This is useful when using packed tensor format (single dimension for batch and sequence length). + Returns: + + Example: + + ```python + >>> import requests + >>> import torch + >>> from PIL import Image + >>> from io import BytesIO + + >>> from transformers import AutoProcessor, AutoModelForVision2Seq + >>> from transformers.image_utils import load_image + + >>> # Note that passing the image urls (instead of the actual pil images) to the processor is also possible + >>> image1 = load_image("https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg") + >>> image2 = load_image("https://cdn.britannica.com/59/94459-050-DBA42467/Skyline-Chicago.jpg") + >>> image3 = load_image("https://cdn.britannica.com/68/170868-050-8DDE8263/Golden-Gate-Bridge-San-Francisco.jpg") + + >>> processor = AutoProcessor.from_pretrained("HuggingFaceM4/Idefics3-8B-Llama3") + >>> model = AutoModelForVision2Seq.from_pretrained("HuggingFaceM4/Idefics3-8B-Llama3", torch_dtype=torch.bfloat16, device_map="auto") + + >>> # Create inputs + >>> messages = [ + ... { + ... "role": "user", + ... "content": [ + ... {"type": "image"}, + ... {"type": "text", "text": "In this image, we can see the city of New York, and more specifically the Statue of Liberty."}, + ... {"type": "image"}, + ... {"type": "text", "text": "What can we see in this image?"}, + ... ] + ... }, + ... { + ... "role": "user", + ... "content": [ + ... {"type": "image"}, + ... {"type": "text", "text": "In which city is that bridge located?"}, + ... ] + ... } + ... ] + + >>> prompts = [processor.apply_chat_template([message], add_generation_prompt=True) for message in messages] + >>> images = [[image1, image2], [image3]] + >>> inputs = processor(text=prompts, images=images, padding=True, return_tensors="pt").to(model.device) + + >>> # Generate + >>> generated_ids = model.generate(**inputs, max_new_tokens=256) + >>> generated_texts = processor.batch_decode(generated_ids, skip_special_tokens=True) + + >>> print(generated_texts[0]) + Assistant: There are buildings, trees, lights, and water visible in this image. + + >>> print(generated_texts[1]) + Assistant: The bridge is in San Francisco. + ```""" + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + # decoder outputs consists of (dec_features, layer_state, dec_hidden, dec_attn) + outputs = self.model( + input_ids=input_ids, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_values=past_key_values, + inputs_embeds=inputs_embeds, + pixel_values=pixel_values, + pixel_attention_mask=pixel_attention_mask, + image_hidden_states=image_hidden_states, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + cache_position=cache_position, + return_dict=return_dict, + ) + + hidden_states = outputs[0] + # Only compute necessary logits, and do not upcast them to float if we are not computing the loss + slice_indices = slice(-logits_to_keep, None) if isinstance(logits_to_keep, int) else logits_to_keep + logits = self.lm_head(hidden_states[:, slice_indices, :]) + + loss = None + if labels is not None: + # Upcast to float if we need to compute the loss to avoid potential precision issues + logits = logits.float() + labels = labels.to(logits.device) + # Shift so that tokens < n predict n + if attention_mask is not None: + # we use the input attention mask to shift the logits and labels, because it is 2D. + # we also crop attn mask in case it is longer, which happens in PrefixTuning with peft + shift_attention_mask = attention_mask[:, -(logits.shape[1] - 1) :].to(logits.device) + shift_logits = logits[..., :-1, :][shift_attention_mask != 0].contiguous() + shift_labels = labels[..., 1:][shift_attention_mask != 0].contiguous() + else: + shift_logits = logits[..., :-1, :].contiguous() + shift_labels = labels[..., 1:].contiguous() + # Flatten the tokens + loss_fct = CrossEntropyLoss() + loss = loss_fct(shift_logits.view(-1, shift_logits.size(-1)), shift_labels.view(-1)) + + if not return_dict: + output = (logits,) + outputs[1:] + return (loss,) + output if loss is not None else output + + return Idefics3CausalLMOutputWithPast( + loss=loss, + logits=logits, + past_key_values=outputs.past_key_values, + hidden_states=outputs.hidden_states, + attentions=outputs.attentions, + image_hidden_states=outputs.image_hidden_states, + ) + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2ForConditionalGeneration.prepare_inputs_for_generation + def prepare_inputs_for_generation( + self, + input_ids, + past_key_values=None, + attention_mask=None, + inputs_embeds=None, + cache_position=None, + pixel_values=None, + pixel_attention_mask=None, + image_hidden_states=None, + logits_to_keep=None, + **kwargs, + ): + # Overwritten -- there are mutually exclusive inputs (if the logic to make `image_hidden_states` take + # precedence is moved to the model, we can remove this fn) + + model_inputs = super().prepare_inputs_for_generation( + input_ids, + past_key_values=past_key_values, + attention_mask=attention_mask, + inputs_embeds=inputs_embeds, + cache_position=cache_position, + pixel_values=pixel_values, + pixel_attention_mask=pixel_attention_mask, + image_hidden_states=image_hidden_states, + logits_to_keep=logits_to_keep, + **kwargs, + ) + + # if `inputs_embeds` are passed, we only want to use them in the 1st generation step + # but IDEFICS requires both ids and embeds to be present + if inputs_embeds is not None and cache_position[0] == 0: + model_inputs["input_ids"] = input_ids + + if image_hidden_states is not None: + model_inputs["pixel_values"] = None + model_inputs["pixel_attention_mask"] = None + + return model_inputs + + # Copied from transformers.models.idefics2.modeling_idefics2.Idefics2ForConditionalGeneration._update_model_kwargs_for_generation + def _update_model_kwargs_for_generation(self, outputs, model_kwargs, is_encoder_decoder, **kwargs): + model_kwargs = super()._update_model_kwargs_for_generation( + outputs=outputs, + model_kwargs=model_kwargs, + is_encoder_decoder=is_encoder_decoder, + **kwargs, + ) + # Get the precomputed image_hidden_states + model_kwargs["image_hidden_states"] = outputs.image_hidden_states + return model_kwargs + + +__all__ = ["Idefics3ForConditionalGeneration", "Idefics3PreTrainedModel", "Idefics3Model", "Idefics3VisionTransformer"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/processing_idefics3.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/processing_idefics3.py new file mode 100644 index 0000000000000000000000000000000000000000..6501fca6b68485b386e36f8b1b82cd5e88073d01 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/idefics3/processing_idefics3.py @@ -0,0 +1,361 @@ +# coding=utf-8 +# Copyright 2024 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Processor class for Idefics3. +""" + +import re +from itertools import accumulate +from typing import TYPE_CHECKING, Dict, List, Optional, Union + +from ...feature_extraction_utils import BatchFeature +from ...image_utils import ImageInput, is_valid_image, load_image +from ...processing_utils import ImagesKwargs, ProcessingKwargs, ProcessorMixin, Unpack +from ...tokenization_utils_base import AddedToken, BatchEncoding, TextInput +from ...utils import logging + + +if TYPE_CHECKING: + from ...tokenization_utils_base import PreTokenizedInput + +logger = logging.get_logger(__name__) + + +def is_url(val) -> bool: + return isinstance(val, str) and val.startswith("http") + + +def is_image_or_image_url(elem): + return is_url(elem) or is_valid_image(elem) + + +def _prompt_split_image(image_seq_len, image_rows, image_cols, fake_token_around_image, image_token, global_img_token): + """Prompt with expanded image tokens for when the image is split into patches.""" + text_split_images = "" + for n_h in range(image_rows): + for n_w in range(image_cols): + text_split_images += ( + f"{fake_token_around_image}" + f"" + f"{image_token}" * image_seq_len + ) + text_split_images += "\n" + + text_split_images += ( + f"\n{fake_token_around_image}" + + f"{global_img_token}" + + f"{image_token}" * image_seq_len + + f"{fake_token_around_image}" + ) + return text_split_images + + +def _prompt_single_image(image_seq_len, fake_token_around_image, image_token, global_img_token): + """Prompt with expanded image tokens for a single image.""" + return ( + f"{fake_token_around_image}" + + f"{global_img_token}" + + f"{image_token}" * image_seq_len + + f"{fake_token_around_image}" + ) + + +def get_image_prompt_string( + image_rows, image_cols, image_seq_len, fake_token_around_image, image_token, global_img_token +): + if image_rows == 0 and image_cols == 0: + return _prompt_single_image( + image_seq_len, + fake_token_around_image=fake_token_around_image, + image_token=image_token, + global_img_token=global_img_token, + ) + return _prompt_split_image( + image_seq_len, image_rows, image_cols, fake_token_around_image, image_token, global_img_token + ) + + +class Idefics3ImagesKwargs(ImagesKwargs, total=False): + return_row_col_info: Optional[bool] + max_image_size: Optional[Dict[str, int]] + + +class Idefics3ProcessorKwargs(ProcessingKwargs, total=False): + images_kwargs: Idefics3ImagesKwargs + + _defaults = { + "text_kwargs": { + "add_special_tokens": True, + "padding": False, + "is_split_into_words": False, + }, + "images_kwargs": { + "return_row_col_info": True, + }, + } + + +Idefics3ProcessorKwargs.__annotations__["images_kwargs"] = Idefics3ImagesKwargs # python 3.8 compatibility + + +class Idefics3Processor(ProcessorMixin): + r""" + Constructs a Idefics3 processor which wraps a LLama tokenizer and Idefics3 image processor into a single processor. + + [`Idefics3Processor`] offers all the functionalities of [`Idefics3ImageProcessor`] and [`Idefics3TokenizerFast`]. See + the docstring of [`~IdeficsProcessor.__call__`] and [`~IdeficsProcessor.decode`] for more information. + + Args: + image_processor (`Idefics3ImageProcessor`): + An instance of [`Idefics3ImageProcessor`]. The image processor is a required input. + tokenizer (`PreTrainedTokenizerBase`, *optional*): + An instance of [`PreTrainedTokenizerBase`]. This should correspond with the model's text model. The tokenizer is a required input. + image_seq_len (`int`, *optional*, defaults to 169): + The length of the image sequence i.e. the number of tokens per image in the input. + This parameter is used to build the string from the input prompt and image tokens and should match the + value the model used. It is computed as: image_seq_len = int(((image_size // patch_size) ** 2) / (scale_factor**2)) + chat_template (`str`, *optional*): A Jinja template which will be used to convert lists of messages + in a chat into a tokenizable string. + """ + + attributes = ["image_processor", "tokenizer"] + valid_kwargs = ["image_seq_len", "chat_template"] + image_processor_class = "Idefics3ImageProcessor" + tokenizer_class = "AutoTokenizer" + + def __init__(self, image_processor, tokenizer=None, image_seq_len: int = 169, chat_template: str = None, **kwargs): + if image_processor is None: + raise ValueError("You need to specify an `image_processor`.") + if tokenizer is None: + raise ValueError("You need to specify a `tokenizer`.") + + self.fake_image_token = AddedToken("", normalized=False, special=True) + self.image_token = AddedToken("", normalized=False, special=True) + self.end_of_utterance_token = AddedToken("", normalized=False, special=True) + self.global_image_tag = "" # https://github.com/huggingface/transformers/pull/32473/files/8063e5e17362571b693f1db95167f5443a3be1b2#r1734825341 + self.image_seq_len = image_seq_len + + # This regex matches one or more occurrences of tags (optionally surrounded by newline characters) + # or tags (where x and y are digits, also optionally surrounded by newline characters). + self._regex_to_remove_extra_special_tokens = re.compile(r"(\n?\n?|\n?)+") + + tokens_to_add = { + "additional_special_tokens": [ + self.fake_image_token, + self.image_token, + self.end_of_utterance_token, + ] + } + tokenizer.add_special_tokens(tokens_to_add) + + super().__init__(image_processor, tokenizer, chat_template=chat_template, **kwargs) + + def _extract_images_from_prompts(self, prompts): + prompt_images = [] + for prompt in prompts: + images = [] + for elem in prompt: + if is_valid_image(elem): + images.append(elem) + elif is_url(elem): + images.append(load_image(elem)) + prompt_images.append(images) + return prompt_images + + def __call__( + self, + images: Union[ImageInput, List[ImageInput], List[List[ImageInput]]] = None, + text: Union[TextInput, "PreTokenizedInput", List[TextInput], List["PreTokenizedInput"]] = None, + audio=None, + videos=None, + image_seq_len: Optional[int] = None, + **kwargs: Unpack[Idefics3ProcessorKwargs], + ) -> BatchEncoding: + """ + Processes the input prompts and returns a BatchEncoding. + + Example: + + ```python + >>> import requests + >>> from transformers import Idefics3Processor + >>> from transformers.image_utils import load_image + + >>> processor = Idefics3Processor.from_pretrained("HuggingFaceM4/Idefics3-8B-Llama3") + >>> processor.image_processor.do_image_splitting = False # Force as False to simplify the example + + >>> url1 = "https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg" + >>> url2 = "https://cdn.britannica.com/59/94459-050-DBA42467/Skyline-Chicago.jpg" + + >>> image1, image2 = load_image(url1), load_image(url2) + >>> images = [[image1], [image2]] + + >>> text = [ + ... "In this image, we see", + ... "bla bla bla", + ... ] + >>> outputs = processor(images=images, text=text, return_tensors="pt", padding=True) + >>> input_ids = outputs.input_ids + >>> input_tokens = processor.tokenizer.batch_decode(input_ids) + >>> print(input_tokens) + ['<|begin_of_text|>(()*169) In this image, we see', '<|reserved_special_token_0|><|reserved_special_token_0|><|reserved_special_token_0|><|begin_of_text|>bla bla bla(()*169)'] + ``` + + Args: + images (`PIL.Image.Image`, `np.ndarray`, `torch.Tensor`, `List[PIL.Image.Image]`, `List[np.ndarray]`, `List[torch.Tensor]`, *optional*): + The image or batch of images to be prepared. Each image can be a PIL image, NumPy array or PyTorch + tensor. If is of type `List[ImageInput]`, it's assumed that this is for a single prompt i.e. of batch size 1. + text (`Union[TextInput, PreTokenizedInput, List[TextInput], List[PreTokenizedInput]]`, *optional*): + The sequence or batch of sequences to be encoded. Each sequence can be a string or a list of strings + (pretokenized string). If the sequences are provided as list of strings (pretokenized), you must set + `is_split_into_words=True` (to lift the ambiguity with a batch of sequences). + Wherever an image token, `` is encountered it is expanded to + `` + `` + `` * `image_seq_len` * `. + image_seq_len (`int`, *optional*): + The length of the image sequence. If not provided, the default value of self.image_seq_len is used. + image_seq_len should be equal to int(((image_size // patch_size) ** 2) / (scale_factor**2)) + return_tensors (`Union[str, TensorType]`, *optional*): + If set, will return tensors of a particular framework. See [`PreTrainedTokenizerFast.__call__`] for more + information. + """ + if text is None and images is None: + raise ValueError("You must provide either `text` or `images`.") + + output_kwargs = self._merge_kwargs( + Idefics3ProcessorKwargs, + tokenizer_init_kwargs=self.tokenizer.init_kwargs, + **kwargs, + ) + + image_seq_len = image_seq_len if image_seq_len is not None else self.image_seq_len + + n_images_in_text = [] + n_images_in_images = [] + inputs = BatchFeature() + + if text is not None: + if isinstance(text, str): + text = [text] + elif not isinstance(text, list) and not isinstance(text[0], str): + raise ValueError("Invalid input text. Please provide a string, or a list of strings") + n_images_in_text = [sample.count(self.image_token.content) for sample in text] + + if images is not None: + if is_image_or_image_url(images): + images = [[images]] + elif isinstance(images, (list, tuple)) and is_image_or_image_url(images[0]): + if text is not None: + if sum(n_images_in_text) != len(images): + raise ValueError( + f"The total number of {self.image_token.content} tokens in the prompts should be the same as the number of images passed." + f" Found {sum(n_images_in_text)} {self.image_token.content} tokens and {len(images)} images." + ) + # Reorganize the images to match the prompts + cumsum_images_in_text = [0] + list(accumulate(n_images_in_text)) + images = [ + images[cumsum_images_in_text[i] : cumsum_images_in_text[i + 1]] + for i in range(len(n_images_in_text)) + ] + else: + images = [images] + elif ( + not isinstance(images, (list, tuple)) + and not isinstance(images[0], (list, tuple)) + and not is_image_or_image_url(images[0][0]) + ): + raise ValueError( + "Invalid input images. Please provide a single image or a list of images or a list of list of images." + ) + n_images_in_images = [len(sample) for sample in images] + + # Load images if they are URLs + images = [[load_image(im) if is_url(im) else im for im in sample] for sample in images] + + image_inputs = self.image_processor(images, **output_kwargs["images_kwargs"]) + inputs.update(image_inputs) + + if text is not None: + if n_images_in_images != n_images_in_text: + raise ValueError( + f"The number of images in the text {n_images_in_text} and images {n_images_in_images} should be the same." + ) + + image_rows = inputs.pop("rows", [[0] * len(text)]) + image_cols = inputs.pop("cols", [[0] * len(text)]) + + fake_image_token = self.fake_image_token.content + image_token = self.image_token.content + global_img_token = self.global_image_tag + + prompt_strings = [] + for sample, sample_rows, sample_cols in zip(text, image_rows, image_cols): + # Replace the image token with fake tokens around the expanded image token sequence of length `image_seq_len` + image_prompt_strings = [] + for n_rows, n_cols in zip(sample_rows, sample_cols): + image_prompt_string = get_image_prompt_string( + n_rows, + n_cols, + image_seq_len, + image_token=image_token, + fake_token_around_image=fake_image_token, + global_img_token=global_img_token, + ) + image_prompt_strings.append(image_prompt_string) + + split_sample = sample.split(image_token) + if len(split_sample) == 0: + raise ValueError("The image token should be present in the text.") + + # Place in the image prompt strings where the image tokens are + sample = split_sample[0] + for i, image_prompt_string in enumerate(image_prompt_strings): + sample += image_prompt_string + split_sample[i + 1] + prompt_strings.append(sample) + + text_inputs = self.tokenizer(text=prompt_strings, **output_kwargs["text_kwargs"]) + inputs.update(text_inputs) + + elif text is not None: + if any(n_images_in_text): + raise ValueError( + f"Found {sum(n_images_in_text)} {self.image_token.content} tokens in the text but no images were passed." + ) + text_inputs = self.tokenizer(text=text, **output_kwargs["text_kwargs"]) + inputs.update(text_inputs) + + return inputs + + def batch_decode(self, *args, **kwargs): + """ + This method forwards all its arguments to Idefics3TokenizerFast's [`~PreTrainedTokenizer.batch_decode`]. Please + refer to the docstring of this method for more information. + """ + batched_decode_output = self.tokenizer.batch_decode(*args, **kwargs) + return [self._regex_to_remove_extra_special_tokens.sub("", s) for s in batched_decode_output] + + def decode(self, *args, **kwargs): + """ + This method forwards all its arguments to Idefics3TokenizerFast's [`~PreTrainedTokenizer.decode`]. Please refer to + the docstring of this method for more information. + """ + decode_output = self.tokenizer.decode(*args, **kwargs) + return self._regex_to_remove_extra_special_tokens.sub("", decode_output) + + @property + def model_input_names(self): + tokenizer_input_names = self.tokenizer.model_input_names + image_processor_input_names = self.image_processor.model_input_names + return list(dict.fromkeys(image_processor_input_names + tokenizer_input_names)) + + +__all__ = ["Idefics3Processor"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/__init__.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..8923af1de116219405577646ae2dcedee5602ccc --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/__init__.py @@ -0,0 +1,27 @@ +# Copyright 2024 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +from typing import TYPE_CHECKING + +from ...utils import _LazyModule +from ...utils.import_utils import define_import_structure + + +if TYPE_CHECKING: + from .configuration_ijepa import * + from .modeling_ijepa import * +else: + import sys + + _file = globals()["__file__"] + sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__) diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/configuration_ijepa.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/configuration_ijepa.py new file mode 100644 index 0000000000000000000000000000000000000000..e59920338aedff437e28f0b6fa45ecc7695c2c9e --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/configuration_ijepa.py @@ -0,0 +1,111 @@ +# coding=utf-8 +# Copyright 2024 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""I-JEPA model configuration""" + +from ...configuration_utils import PretrainedConfig + + +class IJepaConfig(PretrainedConfig): + r""" + This is the configuration class to store the configuration of a [`IJepaModel`]. It is used to instantiate an IJEPA + model according to the specified arguments, defining the model architecture. Instantiating a configuration with the + defaults will yield a similar configuration to that of the I-JEPA + [facebook/ijepa_vith14_1k](https://huggingface.co/facebook/ijepa_vith14_1k) architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + + Args: + hidden_size (`int`, *optional*, defaults to 768): + Dimensionality of the encoder layers and the pooler layer. + num_hidden_layers (`int`, *optional*, defaults to 12): + Number of hidden layers in the Transformer encoder. + num_attention_heads (`int`, *optional*, defaults to 12): + Number of attention heads for each attention layer in the Transformer encoder. + intermediate_size (`int`, *optional*, defaults to 3072): + Dimensionality of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder. + hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`): + The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`, + `"relu"`, `"selu"` and `"gelu_new"` are supported. + hidden_dropout_prob (`float`, *optional*, defaults to 0.0): + The dropout probability for all fully connected layers in the embeddings, encoder, and pooler. + attention_probs_dropout_prob (`float`, *optional*, defaults to 0.0): + The dropout ratio for the attention probabilities. + initializer_range (`float`, *optional*, defaults to 0.02): + The standard deviation of the truncated_normal_initializer for initializing all weight matrices. + layer_norm_eps (`float`, *optional*, defaults to 1e-12): + The epsilon used by the layer normalization layers. + image_size (`int`, *optional*, defaults to 224): + The size (resolution) of each image. + patch_size (`int`, *optional*, defaults to 16): + The size (resolution) of each patch. + num_channels (`int`, *optional*, defaults to 3): + The number of input channels. + qkv_bias (`bool`, *optional*, defaults to `True`): + Whether to add a bias to the queries, keys and values. + + Example: + + ```python + >>> from transformers import IJepaConfig, IJepaModel + + >>> # Initializing a IJEPA ijepa-base-patch16-224 style configuration + >>> configuration = IJepaConfig() + + >>> # Initializing a model (with random weights) from the ijepa-base-patch16-224 style configuration + >>> model = IJepaModel(configuration) + + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "ijepa" + + def __init__( + self, + hidden_size=768, + num_hidden_layers=12, + num_attention_heads=12, + intermediate_size=3072, + hidden_act="gelu", + hidden_dropout_prob=0.0, + attention_probs_dropout_prob=0.0, + initializer_range=0.02, + layer_norm_eps=1e-12, + image_size=224, + patch_size=16, + num_channels=3, + qkv_bias=True, + **kwargs, + ): + super().__init__(**kwargs) + + self.hidden_size = hidden_size + self.num_hidden_layers = num_hidden_layers + self.num_attention_heads = num_attention_heads + self.intermediate_size = intermediate_size + self.hidden_act = hidden_act + self.hidden_dropout_prob = hidden_dropout_prob + self.attention_probs_dropout_prob = attention_probs_dropout_prob + self.initializer_range = initializer_range + self.layer_norm_eps = layer_norm_eps + self.image_size = image_size + self.patch_size = patch_size + self.num_channels = num_channels + self.qkv_bias = qkv_bias + + +__all__ = ["IJepaConfig"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/convert_ijepa_to_hf.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/convert_ijepa_to_hf.py new file mode 100644 index 0000000000000000000000000000000000000000..5c15a72ff88847ab0cc25571ee37a916e180e62b --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/convert_ijepa_to_hf.py @@ -0,0 +1,267 @@ +# coding=utf-8 +# Copyright 2024 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Convert IJEPA checkpoints from the original repository. + +URL: https://github.com/facebookresearch/ijepa +""" + +import argparse +import gc +import re +from pathlib import Path + +import requests +import torch +from PIL import Image + +from transformers import ( + IJepaConfig, + IJepaModel, + ViTImageProcessor, +) +from transformers.utils import logging + + +logging.set_verbosity_info() +logger = logging.get_logger(__name__) + +# fmt: off +ORIGINAL_TO_CONVERTED_KEY_MAPPING = { + # Projection layer + position embeddings + r"pos_embed": r"embeddings.position_embeddings", + r"patch_embed.proj.weight": r"embeddings.patch_embeddings.projection.weight", + r"patch_embed.proj.bias": r"embeddings.patch_embeddings.projection.bias", + + # Encoder layers: Layernorms, Attention, Feedforward layers + r"blocks.(\d+).norm1.weight": r"encoder.layer.\1.layernorm_before.weight", + r"blocks.(\d+).norm1.bias": r"encoder.layer.\1.layernorm_before.bias", + r"blocks.(\d+).attn.proj.weight": r"encoder.layer.\1.attention.output.dense.weight", + r"blocks.(\d+).attn.proj.bias": r"encoder.layer.\1.attention.output.dense.bias", + r"blocks.(\d+).norm2.weight": r"encoder.layer.\1.layernorm_after.weight", + r"blocks.(\d+).norm2.bias": r"encoder.layer.\1.layernorm_after.bias", + r"blocks.(\d+).mlp.fc1.weight": r"encoder.layer.\1.intermediate.dense.weight", + r"blocks.(\d+).mlp.fc1.bias": r"encoder.layer.\1.intermediate.dense.bias", + r"blocks.(\d+).mlp.fc2.weight": r"encoder.layer.\1.output.dense.weight", + r"blocks.(\d+).mlp.fc2.bias": r"encoder.layer.\1.output.dense.bias", + + # Layernorm + pooler + r"norm.weight": r"layernorm.weight", + r"norm.bias": r"layernorm.bias", +} +# fmt: on + + +def convert_old_keys_to_new_keys(state_dict_keys: dict = None): + """ + Converts old keys to new keys using the mapping and dynamically removes the 'ijepa.' prefix if necessary. + + Args: + state_dict_keys (dict): The keys from the state_dict to convert. + + Returns: + dict: A mapping from old keys to new keys. + """ + output_dict = {} + if state_dict_keys is not None: + old_text = "\n".join(state_dict_keys) + new_text = old_text + + # Apply regex-based mapping + for pattern, replacement in ORIGINAL_TO_CONVERTED_KEY_MAPPING.items(): + if replacement is None: + new_text = re.sub(pattern, "", new_text) # Skip the key + continue + new_text = re.sub(pattern, replacement, new_text) + + output_dict = dict(zip(old_text.split("\n"), new_text.split("\n"))) + + return output_dict + + +# we split up the matrix of each encoder layer into queries, keys and values +def read_in_q_k_v(state_dict, config): + for i in range(config.num_hidden_layers): + # read in weights + bias of input projection layer (in timm, this is a single matrix + bias) + in_proj_weight = state_dict.pop(f"blocks.{i}.attn.qkv.weight") + in_proj_bias = state_dict.pop(f"blocks.{i}.attn.qkv.bias") + # next, add query, keys and values (in that order) to the state dict + state_dict[f"encoder.layer.{i}.attention.attention.query.weight"] = in_proj_weight[: config.hidden_size, :] + state_dict[f"encoder.layer.{i}.attention.attention.query.bias"] = in_proj_bias[: config.hidden_size] + state_dict[f"encoder.layer.{i}.attention.attention.key.weight"] = in_proj_weight[ + config.hidden_size : config.hidden_size * 2, : + ] + state_dict[f"encoder.layer.{i}.attention.attention.key.bias"] = in_proj_bias[ + config.hidden_size : config.hidden_size * 2 + ] + state_dict[f"encoder.layer.{i}.attention.attention.value.weight"] = in_proj_weight[-config.hidden_size :, :] + state_dict[f"encoder.layer.{i}.attention.attention.value.bias"] = in_proj_bias[-config.hidden_size :] + + +def rename_key(dct, old, new): + val = dct.pop(old) + dct[new] = val + + +# We will verify our results on an image of cute cats +def prepare_img(): + url = "http://images.cocodataset.org/val2017/000000039769.jpg" + im = Image.open(requests.get(url, stream=True).raw) + return im + + +def get_ijepa_config(model_name): + patch_size = int(model_name.split("_")[1][4:]) + config = IJepaConfig(patch_size=patch_size) + if "vith" in model_name: + config.hidden_size = 1280 + config.num_hidden_layers = 32 + config.num_attention_heads = 16 + config.layer_norm_eps = 1e-6 + config.mlp_ratio = 4 + config.intermediate_size = 5120 + if model_name == "ijepa_vith16_1k": + config.image_size = 448 + elif "vitg" in model_name: + config.hidden_size = 1408 + config.num_hidden_layers = 40 + config.num_attention_heads = 16 + config.layer_norm_eps = 1e-6 + config.mlp_ratio = 48 / 11 + config.intermediate_size = 6144 + else: + raise ValueError("Model not supported, only supports huge and giant models.") + return config + + +@torch.no_grad() +def write_model(model_name, output_dir, safe_serialization, push_to_hub, verify_logits): + """ + Copy/paste/tweak model's weights to our IJEPA structure. + """ + + # define default IJEPA configuration + config = get_ijepa_config(model_name) + + checkpoint_mapping = { + "ijepa_vith14_1k": "https://dl.fbaipublicfiles.com/ijepa/IN1K-vit.h.14-300e.pth.tar", + "ijepa_vith14_22k": "https://dl.fbaipublicfiles.com/ijepa/IN22K-vit.h.14-900e.pth.tar", + "ijepa_vith16_1k": "https://dl.fbaipublicfiles.com/ijepa/IN1K-vit.h.16-448px-300e.pth.tar", + "ijepa_vitg16_22k": "https://dl.fbaipublicfiles.com/ijepa/IN22K-vit.g.16-600e.pth.tar", + } + + # Load original checkpoint + checkpoint_url = checkpoint_mapping[model_name] + original_state_dict = torch.hub.load_state_dict_from_url(checkpoint_url, map_location="cpu")["encoder"] + original_state_dict = {k.replace("module.", ""): v for k, v in original_state_dict.items()} + + # Rename keys + state_dict = original_state_dict.copy() + new_keys = convert_old_keys_to_new_keys(state_dict.keys()) + for old_key, new_key in new_keys.items(): + rename_key(state_dict, old_key, new_key) + read_in_q_k_v(state_dict, config) + + # load HuggingFace model + model = IJepaModel(config, add_pooling_layer=False).eval() + model.load_state_dict(state_dict) + size = {"height": config.image_size, "width": config.image_size} + image_processor = ViTImageProcessor(size=size) + + if verify_logits: + # Check outputs on an image, prepared by ViTImageProcessor + encoding = image_processor(images=prepare_img(), return_tensors="pt") + pixel_values = encoding["pixel_values"] + with torch.no_grad(): + outputs = model(pixel_values) + + expected_slices = { + "ijepa_vith14_1k": torch.Tensor( + [[-0.0621, -0.0054, -2.7513], [-0.1952, 0.0909, -3.9536], [0.0942, -0.0331, -1.2833]] + ), + "ijepa_vith14_22k": torch.Tensor( + [[0.0358, -0.0045, -0.2154], [0.0418, -0.0246, 0.0108], [0.2529, -0.0345, -0.0246]] + ), + "ijepa_vith16_1k": torch.Tensor( + [[0.5145, -0.1259, 0.0615], [0.1132, 0.0028, -0.0496], [1.1586, -0.0056, -0.0387]] + ), + "ijepa_vitg16_22k": torch.Tensor( + [[0.0512, -0.0510, -0.0649], [0.1972, 0.0380, -0.0790], [0.1667, -0.0834, -0.1240]] + ), + } + + assert torch.allclose( + expected_slices[model_name], + outputs.last_hidden_state[0, :3, :3], + atol=1e-4, + ) + + if output_dir: + Path(output_dir).mkdir(exist_ok=True) + print(f"Saving model {model_name} to {output_dir}") + image_processor.save_pretrained(output_dir, safe_serialization=safe_serialization) + model.save_pretrained(output_dir, safe_serialization=safe_serialization) + + if push_to_hub: + image_processor.push_to_hub(repo_id=f"jmtzt/{model_name}", safe_serialization=safe_serialization) + model.push_to_hub(repo_id=f"jmtzt/{model_name}", safe_serialization=safe_serialization) + + if output_dir: + del model, state_dict + gc.collect() + print("Reloading the model to check if it's saved correctly.") + IJepaModel.from_pretrained(output_dir, device_map="auto") + print("Model reloaded successfully.") + + +def main(): + parser = argparse.ArgumentParser() + # Required parameters + parser.add_argument( + "--model_name", + default="ijepa_vith14_1k", + type=str, + choices=[ + "ijepa_vith14_1k", + "ijepa_vith14_22k", + "ijepa_vith16_1k", + "ijepa_vitg16_22k", + ], + help="Name of the model you'd like to convert.", + ) + parser.add_argument( + "--output_dir", + default=None, + type=str, + help="Path to the output PyTorch model directory.", + ) + parser.add_argument( + "--safe_serialization", default=True, type=bool, help="Whether or not to save using `safetensors`." + ) + parser.add_argument( + "--push_to_hub", + action="store_true", + help="Whether or not to push the model to the 🤗 Hub.", + ) + parser.add_argument( + "--verify_logits", action="store_false", help="Whether or not to verify logits after conversion." + ) + + parser.set_defaults() + args = parser.parse_args() + write_model(args.model_name, args.output_dir, args.safe_serialization, args.push_to_hub, args.verify_logits) + + +if __name__ == "__main__": + main() diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/modeling_ijepa.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/modeling_ijepa.py new file mode 100644 index 0000000000000000000000000000000000000000..7d4619480c385f82e1e6df81b3e43554804e109c --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/modeling_ijepa.py @@ -0,0 +1,752 @@ +# 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 +# This file was automatically generated from src/transformers/models/ijepa/modular_ijepa.py. +# Do NOT edit this file manually as any edits will be overwritten by the generation of +# the file from the modular. If any change should be done, please apply the change to the +# modular_ijepa.py file directly. One of our CI enforces this. +# 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 +import collections.abc +import math +from typing import Dict, List, Optional, Set, Tuple, Union + +import torch +import torch.nn as nn +from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss + +from ...activations import ACT2FN +from ...modeling_outputs import BaseModelOutput, BaseModelOutputWithPooling, ImageClassifierOutput +from ...modeling_utils import PreTrainedModel +from ...pytorch_utils import find_pruneable_heads_and_indices, prune_linear_layer +from ...utils import ( + add_code_sample_docstrings, + add_start_docstrings, + add_start_docstrings_to_model_forward, + logging, + torch_int, +) +from .configuration_ijepa import IJepaConfig + + +logger = logging.get_logger(__name__) + + +_CHECKPOINT_FOR_DOC = "facebook/ijepa_vith14_1k" + +# General docstring +_CONFIG_FOR_DOC = "IJepaConfig" + + +class IJepaPatchEmbeddings(nn.Module): + """ + This class turns `pixel_values` of shape `(batch_size, num_channels, height, width)` into the initial + `hidden_states` (patch embeddings) of shape `(batch_size, seq_length, hidden_size)` to be consumed by a + Transformer. + """ + + def __init__(self, config): + super().__init__() + image_size, patch_size = config.image_size, config.patch_size + num_channels, hidden_size = config.num_channels, config.hidden_size + + image_size = image_size if isinstance(image_size, collections.abc.Iterable) else (image_size, image_size) + patch_size = patch_size if isinstance(patch_size, collections.abc.Iterable) else (patch_size, patch_size) + num_patches = (image_size[1] // patch_size[1]) * (image_size[0] // patch_size[0]) + self.image_size = image_size + self.patch_size = patch_size + self.num_channels = num_channels + self.num_patches = num_patches + + self.projection = nn.Conv2d(num_channels, hidden_size, kernel_size=patch_size, stride=patch_size) + + def forward(self, pixel_values: torch.Tensor, interpolate_pos_encoding: bool = False) -> torch.Tensor: + batch_size, num_channels, height, width = pixel_values.shape + if num_channels != self.num_channels: + raise ValueError( + "Make sure that the channel dimension of the pixel values match with the one set in the configuration." + f" Expected {self.num_channels} but got {num_channels}." + ) + if not interpolate_pos_encoding: + if height != self.image_size[0] or width != self.image_size[1]: + raise ValueError( + f"Input image size ({height}*{width}) doesn't match model" + f" ({self.image_size[0]}*{self.image_size[1]})." + ) + embeddings = self.projection(pixel_values).flatten(2).transpose(1, 2) + return embeddings + + +class IJepaEmbeddings(nn.Module): + """ + Construct the CLS token, position and patch embeddings. Optionally, also the mask token. + """ + + def __init__(self, config: IJepaConfig, use_mask_token: bool = False) -> None: + super().__init__() + self.mask_token = nn.Parameter(torch.zeros(1, 1, config.hidden_size)) if use_mask_token else None + self.patch_embeddings = IJepaPatchEmbeddings(config) + num_patches = self.patch_embeddings.num_patches + self.position_embeddings = nn.Parameter(torch.randn(1, num_patches, config.hidden_size)) + self.dropout = nn.Dropout(config.hidden_dropout_prob) + self.patch_size = config.patch_size + self.config = config + + def interpolate_pos_encoding(self, embeddings: torch.Tensor, height: int, width: int) -> torch.Tensor: + """ + This method allows to interpolate the pre-trained position encodings, to be able to use the model on higher resolution + images. This method is also adapted to support torch.jit tracing. + + Adapted from: + - https://github.com/facebookresearch/dino/blob/de9ee3df6cf39fac952ab558447af1fa1365362a/vision_transformer.py#L174-L194, and + - https://github.com/facebookresearch/dinov2/blob/e1277af2ba9496fbadf7aec6eba56e8d882d1e35/dinov2/models/vision_transformer.py#L179-L211 + """ + + num_patches = embeddings.shape[1] + num_positions = self.position_embeddings.shape[1] + + # always interpolate when tracing to ensure the exported model works for dynamic input shapes + if not torch.jit.is_tracing() and num_patches == num_positions and height == width: + return self.position_embeddings + + patch_pos_embed = self.position_embeddings + + dim = embeddings.shape[-1] + + new_height = height // self.patch_size + new_width = width // self.patch_size + + sqrt_num_positions = torch_int(num_positions**0.5) + patch_pos_embed = patch_pos_embed.reshape(1, sqrt_num_positions, sqrt_num_positions, dim) + patch_pos_embed = patch_pos_embed.permute(0, 3, 1, 2) + + patch_pos_embed = nn.functional.interpolate( + patch_pos_embed, + size=(new_height, new_width), + mode="bicubic", + align_corners=False, + ) + + patch_pos_embed = patch_pos_embed.permute(0, 2, 3, 1).view(1, -1, dim) + + return patch_pos_embed + + def forward( + self, + pixel_values: torch.Tensor, + bool_masked_pos: Optional[torch.BoolTensor] = None, + interpolate_pos_encoding: bool = False, + ) -> torch.Tensor: + batch_size, _, height, width = pixel_values.shape + embeddings = self.patch_embeddings(pixel_values, interpolate_pos_encoding=interpolate_pos_encoding) + + if bool_masked_pos is not None: + seq_length = embeddings.shape[1] + mask_tokens = self.mask_token.expand(batch_size, seq_length, -1) + # replace the masked visual tokens by mask_tokens + mask = bool_masked_pos.unsqueeze(-1).type_as(mask_tokens) + embeddings = embeddings * (1.0 - mask) + mask_tokens * mask + + # add positional encoding to each token + if interpolate_pos_encoding: + embeddings = embeddings + self.interpolate_pos_encoding(embeddings, height, width) + else: + embeddings = embeddings + self.position_embeddings + + embeddings = self.dropout(embeddings) + + return embeddings + + +class IJepaPreTrainedModel(PreTrainedModel): + """ + An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained + models. + """ + + config_class = IJepaConfig + base_model_prefix = "ijepa" + main_input_name = "pixel_values" + supports_gradient_checkpointing = True + _no_split_modules = ["IJepaEmbeddings", "IJepaLayer"] + _supports_sdpa = True + + def _init_weights(self, module: Union[nn.Linear, nn.Conv2d, nn.LayerNorm]) -> None: + """Initialize the weights""" + if isinstance(module, (nn.Linear, nn.Conv2d)): + # Upcast the input in `fp32` and cast it back to desired `dtype` to avoid + # `trunc_normal_cpu` not implemented in `half` issues + module.weight.data = nn.init.trunc_normal_( + module.weight.data.to(torch.float32), mean=0.0, std=self.config.initializer_range + ).to(module.weight.dtype) + if module.bias is not None: + module.bias.data.zero_() + elif isinstance(module, nn.LayerNorm): + module.bias.data.zero_() + module.weight.data.fill_(1.0) + elif isinstance(module, IJepaEmbeddings): + module.position_embeddings.data = nn.init.trunc_normal_( + module.position_embeddings.data.to(torch.float32), + mean=0.0, + std=self.config.initializer_range, + ).to(module.position_embeddings.dtype) + + +class IJepaSelfAttention(nn.Module): + def __init__(self, config: IJepaConfig) -> None: + super().__init__() + if config.hidden_size % config.num_attention_heads != 0 and not hasattr(config, "embedding_size"): + raise ValueError( + f"The hidden size {config.hidden_size} is not a multiple of the number of attention " + f"heads {config.num_attention_heads}." + ) + + self.num_attention_heads = config.num_attention_heads + self.attention_head_size = int(config.hidden_size / config.num_attention_heads) + self.all_head_size = self.num_attention_heads * self.attention_head_size + + self.query = nn.Linear(config.hidden_size, self.all_head_size, bias=config.qkv_bias) + self.key = nn.Linear(config.hidden_size, self.all_head_size, bias=config.qkv_bias) + self.value = nn.Linear(config.hidden_size, self.all_head_size, bias=config.qkv_bias) + + self.dropout = nn.Dropout(config.attention_probs_dropout_prob) + + def transpose_for_scores(self, x: torch.Tensor) -> torch.Tensor: + new_x_shape = x.size()[:-1] + (self.num_attention_heads, self.attention_head_size) + x = x.view(new_x_shape) + return x.permute(0, 2, 1, 3) + + def forward( + self, hidden_states, head_mask: Optional[torch.Tensor] = None, output_attentions: bool = False + ) -> Union[Tuple[torch.Tensor, torch.Tensor], Tuple[torch.Tensor]]: + mixed_query_layer = self.query(hidden_states) + + key_layer = self.transpose_for_scores(self.key(hidden_states)) + value_layer = self.transpose_for_scores(self.value(hidden_states)) + query_layer = self.transpose_for_scores(mixed_query_layer) + + # Take the dot product between "query" and "key" to get the raw attention scores. + attention_scores = torch.matmul(query_layer, key_layer.transpose(-1, -2)) + + attention_scores = attention_scores / math.sqrt(self.attention_head_size) + + # Normalize the attention scores to probabilities. + attention_probs = nn.functional.softmax(attention_scores, dim=-1) + + # This is actually dropping out entire tokens to attend to, which might + # seem a bit unusual, but is taken from the original Transformer paper. + attention_probs = self.dropout(attention_probs) + + # Mask heads if we want to + if head_mask is not None: + attention_probs = attention_probs * head_mask + + context_layer = torch.matmul(attention_probs, value_layer) + + context_layer = context_layer.permute(0, 2, 1, 3).contiguous() + new_context_layer_shape = context_layer.size()[:-2] + (self.all_head_size,) + context_layer = context_layer.view(new_context_layer_shape) + + outputs = (context_layer, attention_probs) if output_attentions else (context_layer,) + + return outputs + + +class IJepaSdpaSelfAttention(IJepaSelfAttention): + def __init__(self, config: IJepaConfig) -> None: + super().__init__(config) + self.attention_probs_dropout_prob = config.attention_probs_dropout_prob + + def forward( + self, + hidden_states: torch.FloatTensor, + head_mask: Optional[torch.Tensor] = None, + output_attentions: bool = False, + ) -> Union[Tuple[torch.Tensor, torch.Tensor], Tuple[torch.Tensor]]: + if output_attentions or head_mask is not None: + logger.warning_once( + "`IJepaSdpaAttention` is used but `torch.nn.functional.scaled_dot_product_attention` does not support " + "`output_attentions=True` or `head_mask`. Falling back to the manual attention implementation, but " + "specifying the manual implementation will be required from Transformers version v5.0.0 onwards. " + 'This warning can be removed using the argument `attn_implementation="eager"` when loading the model.' + ) + return super().forward( + hidden_states=hidden_states, + head_mask=head_mask, + output_attentions=output_attentions, + ) + + mixed_query_layer = self.query(hidden_states) + + key_layer = self.transpose_for_scores(self.key(hidden_states)) + value_layer = self.transpose_for_scores(self.value(hidden_states)) + query_layer = self.transpose_for_scores(mixed_query_layer) + + context_layer = torch.nn.functional.scaled_dot_product_attention( + query_layer, + key_layer, + value_layer, + head_mask, + self.attention_probs_dropout_prob if self.training else 0.0, + is_causal=False, + scale=None, + ) + + context_layer = context_layer.permute(0, 2, 1, 3).contiguous() + new_context_layer_shape = context_layer.size()[:-2] + (self.all_head_size,) + context_layer = context_layer.view(new_context_layer_shape) + + return context_layer, None + + +class IJepaSelfOutput(nn.Module): + """ + The residual connection is defined in IJepaLayer instead of here (as is the case with other models), due to the + layernorm applied before each block. + """ + + def __init__(self, config: IJepaConfig) -> None: + super().__init__() + self.dense = nn.Linear(config.hidden_size, config.hidden_size) + self.dropout = nn.Dropout(config.hidden_dropout_prob) + + def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor: + hidden_states = self.dense(hidden_states) + hidden_states = self.dropout(hidden_states) + + return hidden_states + + +class IJepaAttention(nn.Module): + def __init__(self, config: IJepaConfig) -> None: + super().__init__() + self.attention = IJepaSelfAttention(config) + self.output = IJepaSelfOutput(config) + self.pruned_heads = set() + + def prune_heads(self, heads: Set[int]) -> None: + if len(heads) == 0: + return + heads, index = find_pruneable_heads_and_indices( + heads, self.attention.num_attention_heads, self.attention.attention_head_size, self.pruned_heads + ) + + # Prune linear layers + self.attention.query = prune_linear_layer(self.attention.query, index) + self.attention.key = prune_linear_layer(self.attention.key, index) + self.attention.value = prune_linear_layer(self.attention.value, index) + self.output.dense = prune_linear_layer(self.output.dense, index, dim=1) + + # Update hyper params and store pruned heads + self.attention.num_attention_heads = self.attention.num_attention_heads - len(heads) + self.attention.all_head_size = self.attention.attention_head_size * self.attention.num_attention_heads + self.pruned_heads = self.pruned_heads.union(heads) + + def forward( + self, + hidden_states: torch.Tensor, + head_mask: Optional[torch.Tensor] = None, + output_attentions: bool = False, + ) -> Union[Tuple[torch.Tensor, torch.Tensor], Tuple[torch.Tensor]]: + self_outputs = self.attention(hidden_states, head_mask, output_attentions) + + attention_output = self.output(self_outputs[0], hidden_states) + + outputs = (attention_output,) + self_outputs[1:] # add attentions if we output them + return outputs + + +class IJepaSdpaAttention(IJepaAttention): + def __init__(self, config: IJepaConfig) -> None: + super().__init__(config) + self.attention = IJepaSdpaSelfAttention(config) + + +class IJepaIntermediate(nn.Module): + def __init__(self, config: IJepaConfig) -> None: + super().__init__() + self.dense = nn.Linear(config.hidden_size, config.intermediate_size) + if isinstance(config.hidden_act, str): + self.intermediate_act_fn = ACT2FN[config.hidden_act] + else: + self.intermediate_act_fn = config.hidden_act + + def forward(self, hidden_states: torch.Tensor) -> torch.Tensor: + hidden_states = self.dense(hidden_states) + hidden_states = self.intermediate_act_fn(hidden_states) + + return hidden_states + + +class IJepaOutput(nn.Module): + def __init__(self, config: IJepaConfig) -> None: + super().__init__() + self.dense = nn.Linear(config.intermediate_size, config.hidden_size) + self.dropout = nn.Dropout(config.hidden_dropout_prob) + + def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor: + hidden_states = self.dense(hidden_states) + hidden_states = self.dropout(hidden_states) + + hidden_states = hidden_states + input_tensor + + return hidden_states + + +IJEPA_ATTENTION_CLASSES = { + "eager": IJepaAttention, + "sdpa": IJepaSdpaAttention, +} + + +class IJepaLayer(nn.Module): + """This corresponds to the Block class in the timm implementation.""" + + def __init__(self, config: IJepaConfig) -> None: + super().__init__() + self.chunk_size_feed_forward = config.chunk_size_feed_forward + self.seq_len_dim = 1 + self.attention = IJEPA_ATTENTION_CLASSES[config._attn_implementation](config) + self.intermediate = IJepaIntermediate(config) + self.output = IJepaOutput(config) + self.layernorm_before = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.layernorm_after = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + + def forward( + self, + hidden_states: torch.Tensor, + head_mask: Optional[torch.Tensor] = None, + output_attentions: bool = False, + ) -> Union[Tuple[torch.Tensor, torch.Tensor], Tuple[torch.Tensor]]: + self_attention_outputs = self.attention( + self.layernorm_before(hidden_states), # in IJepa, layernorm is applied before self-attention + head_mask, + output_attentions=output_attentions, + ) + attention_output = self_attention_outputs[0] + outputs = self_attention_outputs[1:] # add self attentions if we output attention weights + + # first residual connection + hidden_states = attention_output + hidden_states + + # in IJepa, layernorm is also applied after self-attention + layer_output = self.layernorm_after(hidden_states) + layer_output = self.intermediate(layer_output) + + # second residual connection is done here + layer_output = self.output(layer_output, hidden_states) + + outputs = (layer_output,) + outputs + + return outputs + + +class IJepaEncoder(nn.Module): + def __init__(self, config: IJepaConfig) -> None: + super().__init__() + self.config = config + self.layer = nn.ModuleList([IJepaLayer(config) for _ in range(config.num_hidden_layers)]) + self.gradient_checkpointing = False + + def forward( + self, + hidden_states: torch.Tensor, + head_mask: Optional[torch.Tensor] = None, + output_attentions: bool = False, + output_hidden_states: bool = False, + return_dict: bool = True, + ) -> Union[tuple, BaseModelOutput]: + all_hidden_states = () if output_hidden_states else None + all_self_attentions = () if output_attentions else None + + for i, layer_module in enumerate(self.layer): + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + layer_head_mask = head_mask[i] if head_mask is not None else None + + if self.gradient_checkpointing and self.training: + layer_outputs = self._gradient_checkpointing_func( + layer_module.__call__, + hidden_states, + layer_head_mask, + output_attentions, + ) + else: + layer_outputs = layer_module(hidden_states, layer_head_mask, output_attentions) + + hidden_states = layer_outputs[0] + + if output_attentions: + all_self_attentions = all_self_attentions + (layer_outputs[1],) + + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + if not return_dict: + return tuple(v for v in [hidden_states, all_hidden_states, all_self_attentions] if v is not None) + return BaseModelOutput( + last_hidden_state=hidden_states, + hidden_states=all_hidden_states, + attentions=all_self_attentions, + ) + + +class IJepaPooler(nn.Module): + def __init__(self, config: IJepaConfig): + super().__init__() + self.dense = nn.Linear(config.hidden_size, config.hidden_size) + self.activation = nn.Tanh() + + def forward(self, hidden_states): + # We "pool" the model by simply taking the hidden state corresponding + # to the first token. + first_token_tensor = hidden_states[:, 0] + pooled_output = self.dense(first_token_tensor) + pooled_output = self.activation(pooled_output) + return pooled_output + + +IJEPA_INPUTS_DOCSTRING = r""" + Args: + pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`): + Pixel values. Pixel values can be obtained using [`AutoImageProcessor`]. See [`IJepaImageProcessor.__call__`] + for details. + + head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*): + Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`: + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + interpolate_pos_encoding (`bool`, *optional*): + Whether to interpolate the pre-trained position encodings. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. +""" + + +_EXPECTED_OUTPUT_SHAPE = [1, 256, 1280] + + +IJEPA_START_DOCSTRING = r""" + This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. Use it + as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and + behavior. + + Parameters: + config ([`IJepaConfig`]): Model configuration class with all the parameters of the model. + Initializing with a config file does not load the weights associated with the model, only the + configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + + +@add_start_docstrings( + "The bare IJepa Model transformer outputting raw hidden-states without any specific head on top.", + IJEPA_START_DOCSTRING, +) +class IJepaModel(IJepaPreTrainedModel): + def __init__(self, config: IJepaConfig, add_pooling_layer: bool = False, use_mask_token: bool = False): + super().__init__(config) + self.config = config + self.embeddings = IJepaEmbeddings(config, use_mask_token=use_mask_token) + self.encoder = IJepaEncoder(config) + + self.layernorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.pooler = IJepaPooler(config) if add_pooling_layer else None + + # Initialize weights and apply final processing + self.post_init() + + def get_input_embeddings(self) -> IJepaPatchEmbeddings: + return self.embeddings.patch_embeddings + + def _prune_heads(self, heads_to_prune: Dict[int, List[int]]) -> None: + """ + Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base + class PreTrainedModel + """ + for layer, heads in heads_to_prune.items(): + self.encoder.layer[layer].attention.prune_heads(heads) + + @add_start_docstrings_to_model_forward(IJEPA_INPUTS_DOCSTRING) + @add_code_sample_docstrings( + checkpoint=_CHECKPOINT_FOR_DOC, + output_type=BaseModelOutputWithPooling, + config_class=_CONFIG_FOR_DOC, + modality="vision", + expected_output=_EXPECTED_OUTPUT_SHAPE, + ) + def forward( + self, + pixel_values: Optional[torch.Tensor] = None, + bool_masked_pos: Optional[torch.BoolTensor] = None, + head_mask: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + interpolate_pos_encoding: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, BaseModelOutputWithPooling]: + r""" + bool_masked_pos (`torch.BoolTensor` of shape `(batch_size, num_patches)`, *optional*): + Boolean masked positions. Indicates which patches are masked (1) and which aren't (0). + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if pixel_values is None: + raise ValueError("You have to specify pixel_values") + + # Prepare head mask if needed + # 1.0 in head_mask indicate we keep the head + # attention_probs has shape bsz x n_heads x N x N + # input head_mask has shape [num_heads] or [num_hidden_layers x num_heads] + # and head_mask is converted to shape [num_hidden_layers x batch x num_heads x seq_length x seq_length] + head_mask = self.get_head_mask(head_mask, self.config.num_hidden_layers) + + # TODO: maybe have a cleaner way to cast the input (from `ImageProcessor` side?) + expected_dtype = self.embeddings.patch_embeddings.projection.weight.dtype + if pixel_values.dtype != expected_dtype: + pixel_values = pixel_values.to(expected_dtype) + + embedding_output = self.embeddings( + pixel_values, bool_masked_pos=bool_masked_pos, interpolate_pos_encoding=interpolate_pos_encoding + ) + + encoder_outputs = self.encoder( + embedding_output, + head_mask=head_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + sequence_output = encoder_outputs[0] + sequence_output = self.layernorm(sequence_output) + pooled_output = self.pooler(sequence_output) if self.pooler is not None else None + + if not return_dict: + head_outputs = (sequence_output, pooled_output) if pooled_output is not None else (sequence_output,) + return head_outputs + encoder_outputs[1:] + + return BaseModelOutputWithPooling( + last_hidden_state=sequence_output, + pooler_output=pooled_output, + hidden_states=encoder_outputs.hidden_states, + attentions=encoder_outputs.attentions, + ) + + +_IMAGE_CLASS_CHECKPOINT = "facebook/ijepa_vith14_1k" +_IMAGE_CLASS_EXPECTED_OUTPUT = "Egyptian cat" + + +@add_start_docstrings( + """ + IJepa Model transformer with an image classification head on top (a linear layer on top of the final hidden states) + e.g. for ImageNet. + + + + Note that it's possible to fine-tune IJepa on higher resolution images than the ones it has been trained on, by + setting `interpolate_pos_encoding` to `True` in the forward of the model. This will interpolate the pre-trained + position embeddings to the higher resolution. + + + """, + IJEPA_START_DOCSTRING, +) +class IJepaForImageClassification(IJepaPreTrainedModel): + def __init__(self, config: IJepaConfig) -> None: + super().__init__(config) + + self.num_labels = config.num_labels + self.ijepa = IJepaModel(config, add_pooling_layer=False) + + # Classifier head + self.classifier = nn.Linear(config.hidden_size, config.num_labels) if config.num_labels > 0 else nn.Identity() + + # Initialize weights and apply final processing + self.post_init() + + @add_start_docstrings_to_model_forward(IJEPA_INPUTS_DOCSTRING) + @add_code_sample_docstrings( + checkpoint=_IMAGE_CLASS_CHECKPOINT, + output_type=ImageClassifierOutput, + config_class=_CONFIG_FOR_DOC, + expected_output=_IMAGE_CLASS_EXPECTED_OUTPUT, + ) + def forward( + self, + pixel_values: Optional[torch.Tensor] = None, + head_mask: Optional[torch.Tensor] = None, + labels: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + interpolate_pos_encoding: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[tuple, ImageClassifierOutput]: + r""" + labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*): + Labels for computing the image classification/regression loss. Indices should be in `[0, ..., + config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If + `config.num_labels > 1` a classification loss is computed (Cross-Entropy). + """ + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + outputs = self.ijepa( + pixel_values, + head_mask=head_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + interpolate_pos_encoding=interpolate_pos_encoding, + return_dict=return_dict, + ) + + sequence_output = outputs[0] + + logits = self.classifier(sequence_output.mean(dim=1)) + + loss = None + if labels is not None: + # move labels to correct device to enable model parallelism + labels = labels.to(logits.device) + if self.config.problem_type is None: + if self.num_labels == 1: + self.config.problem_type = "regression" + elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int): + self.config.problem_type = "single_label_classification" + else: + self.config.problem_type = "multi_label_classification" + + if self.config.problem_type == "regression": + loss_fct = MSELoss() + if self.num_labels == 1: + loss = loss_fct(logits.squeeze(), labels.squeeze()) + else: + loss = loss_fct(logits, labels) + elif self.config.problem_type == "single_label_classification": + loss_fct = CrossEntropyLoss() + loss = loss_fct(logits.view(-1, self.num_labels), labels.view(-1)) + elif self.config.problem_type == "multi_label_classification": + loss_fct = BCEWithLogitsLoss() + loss = loss_fct(logits, labels) + + if not return_dict: + output = (logits,) + outputs[1:] + return ((loss,) + output) if loss is not None else output + + return ImageClassifierOutput( + loss=loss, + logits=logits, + hidden_states=outputs.hidden_states, + attentions=outputs.attentions, + ) + + +__all__ = ["IJepaPreTrainedModel", "IJepaModel", "IJepaForImageClassification"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/modular_ijepa.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/modular_ijepa.py new file mode 100644 index 0000000000000000000000000000000000000000..3b3756dd5ce6970cad53ed5215db3e35a8359b1f --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/ijepa/modular_ijepa.py @@ -0,0 +1,255 @@ +from typing import Optional, Union + +import torch +import torch.nn as nn +from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss + +from transformers.models.ijepa.configuration_ijepa import IJepaConfig + +from ...modeling_outputs import ImageClassifierOutput +from ...modeling_utils import PreTrainedModel +from ...utils import ( + add_start_docstrings, + torch_int, +) +from ..vit.modeling_vit import ( + ViTEmbeddings, + ViTForImageClassification, + ViTModel, +) + + +_CHECKPOINT_FOR_DOC = "facebook/ijepa_vith14_1k" + + +class IJepaEmbeddings(ViTEmbeddings): + def __init__(self, config: IJepaConfig, use_mask_token: bool = False) -> None: + super().__init__(config, use_mask_token) + # Remove cls_token from IJepaEmbeddings, as it is not used in the model + del self.cls_token + num_patches = self.patch_embeddings.num_patches + self.position_embeddings = nn.Parameter(torch.randn(1, num_patches, config.hidden_size)) + + def interpolate_pos_encoding(self, embeddings: torch.Tensor, height: int, width: int) -> torch.Tensor: + """ + This method allows to interpolate the pre-trained position encodings, to be able to use the model on higher resolution + images. This method is also adapted to support torch.jit tracing. + + Adapted from: + - https://github.com/facebookresearch/dino/blob/de9ee3df6cf39fac952ab558447af1fa1365362a/vision_transformer.py#L174-L194, and + - https://github.com/facebookresearch/dinov2/blob/e1277af2ba9496fbadf7aec6eba56e8d882d1e35/dinov2/models/vision_transformer.py#L179-L211 + """ + + num_patches = embeddings.shape[1] + num_positions = self.position_embeddings.shape[1] + + # always interpolate when tracing to ensure the exported model works for dynamic input shapes + if not torch.jit.is_tracing() and num_patches == num_positions and height == width: + return self.position_embeddings + + patch_pos_embed = self.position_embeddings + + dim = embeddings.shape[-1] + + new_height = height // self.patch_size + new_width = width // self.patch_size + + sqrt_num_positions = torch_int(num_positions**0.5) + patch_pos_embed = patch_pos_embed.reshape(1, sqrt_num_positions, sqrt_num_positions, dim) + patch_pos_embed = patch_pos_embed.permute(0, 3, 1, 2) + + patch_pos_embed = nn.functional.interpolate( + patch_pos_embed, + size=(new_height, new_width), + mode="bicubic", + align_corners=False, + ) + + patch_pos_embed = patch_pos_embed.permute(0, 2, 3, 1).view(1, -1, dim) + + return patch_pos_embed + + def forward( + self, + pixel_values: torch.Tensor, + bool_masked_pos: Optional[torch.BoolTensor] = None, + interpolate_pos_encoding: bool = False, + ) -> torch.Tensor: + batch_size, _, height, width = pixel_values.shape + embeddings = self.patch_embeddings(pixel_values, interpolate_pos_encoding=interpolate_pos_encoding) + + if bool_masked_pos is not None: + seq_length = embeddings.shape[1] + mask_tokens = self.mask_token.expand(batch_size, seq_length, -1) + # replace the masked visual tokens by mask_tokens + mask = bool_masked_pos.unsqueeze(-1).type_as(mask_tokens) + embeddings = embeddings * (1.0 - mask) + mask_tokens * mask + + # add positional encoding to each token + if interpolate_pos_encoding: + embeddings = embeddings + self.interpolate_pos_encoding(embeddings, height, width) + else: + embeddings = embeddings + self.position_embeddings + + embeddings = self.dropout(embeddings) + + return embeddings + + +class IJepaPreTrainedModel(PreTrainedModel): + """ + An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained + models. + """ + + config_class = IJepaConfig + base_model_prefix = "ijepa" + main_input_name = "pixel_values" + supports_gradient_checkpointing = True + _no_split_modules = ["IJepaEmbeddings", "IJepaLayer"] + _supports_sdpa = True + + def _init_weights(self, module: Union[nn.Linear, nn.Conv2d, nn.LayerNorm]) -> None: + """Initialize the weights""" + if isinstance(module, (nn.Linear, nn.Conv2d)): + # Upcast the input in `fp32` and cast it back to desired `dtype` to avoid + # `trunc_normal_cpu` not implemented in `half` issues + module.weight.data = nn.init.trunc_normal_( + module.weight.data.to(torch.float32), mean=0.0, std=self.config.initializer_range + ).to(module.weight.dtype) + if module.bias is not None: + module.bias.data.zero_() + elif isinstance(module, nn.LayerNorm): + module.bias.data.zero_() + module.weight.data.fill_(1.0) + elif isinstance(module, IJepaEmbeddings): + module.position_embeddings.data = nn.init.trunc_normal_( + module.position_embeddings.data.to(torch.float32), + mean=0.0, + std=self.config.initializer_range, + ).to(module.position_embeddings.dtype) + + +_EXPECTED_OUTPUT_SHAPE = [1, 256, 1280] + +IJEPA_START_DOCSTRING = r""" + This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. Use it + as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and + behavior. + + Parameters: + config ([`IJepaConfig`]): Model configuration class with all the parameters of the model. + Initializing with a config file does not load the weights associated with the model, only the + configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + + +@add_start_docstrings( + "The bare IJepa Model transformer outputting raw hidden-states without any specific head on top.", + IJEPA_START_DOCSTRING, +) +class IJepaModel(IJepaPreTrainedModel, ViTModel): + def __init__(self, config: IJepaConfig, add_pooling_layer: bool = False, use_mask_token: bool = False): + super().__init__(config) + self.config = config + self.embeddings = IJepaEmbeddings(config, use_mask_token=use_mask_token) + + +_IMAGE_CLASS_CHECKPOINT = "facebook/ijepa_vith14_1k" +_IMAGE_CLASS_EXPECTED_OUTPUT = "Egyptian cat" + + +@add_start_docstrings( + """ + IJepa Model transformer with an image classification head on top (a linear layer on top of the final hidden states) + e.g. for ImageNet. + + + + Note that it's possible to fine-tune IJepa on higher resolution images than the ones it has been trained on, by + setting `interpolate_pos_encoding` to `True` in the forward of the model. This will interpolate the pre-trained + position embeddings to the higher resolution. + + + """, + IJEPA_START_DOCSTRING, +) +class IJepaForImageClassification(IJepaPreTrainedModel, ViTForImageClassification): + def __init__(self, config: IJepaConfig): + super().__init__(config) + self.ijepa = IJepaModel(config, add_pooling_layer=False) + self.post_init() + + def forward( + self, + pixel_values: Optional[torch.Tensor] = None, + head_mask: Optional[torch.Tensor] = None, + labels: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + interpolate_pos_encoding: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[tuple, ImageClassifierOutput]: + r""" + labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*): + Labels for computing the image classification/regression loss. Indices should be in `[0, ..., + config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If + `config.num_labels > 1` a classification loss is computed (Cross-Entropy). + """ + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + outputs = self.ijepa( + pixel_values, + head_mask=head_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + interpolate_pos_encoding=interpolate_pos_encoding, + return_dict=return_dict, + ) + + sequence_output = outputs[0] + + logits = self.classifier(sequence_output.mean(dim=1)) + + loss = None + if labels is not None: + # move labels to correct device to enable model parallelism + labels = labels.to(logits.device) + if self.config.problem_type is None: + if self.num_labels == 1: + self.config.problem_type = "regression" + elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int): + self.config.problem_type = "single_label_classification" + else: + self.config.problem_type = "multi_label_classification" + + if self.config.problem_type == "regression": + loss_fct = MSELoss() + if self.num_labels == 1: + loss = loss_fct(logits.squeeze(), labels.squeeze()) + else: + loss = loss_fct(logits, labels) + elif self.config.problem_type == "single_label_classification": + loss_fct = CrossEntropyLoss() + loss = loss_fct(logits.view(-1, self.num_labels), labels.view(-1)) + elif self.config.problem_type == "multi_label_classification": + loss_fct = BCEWithLogitsLoss() + loss = loss_fct(logits, labels) + + if not return_dict: + output = (logits,) + outputs[1:] + return ((loss,) + output) if loss is not None else output + + return ImageClassifierOutput( + loss=loss, + logits=logits, + hidden_states=outputs.hidden_states, + attentions=outputs.attentions, + ) + + +__all__ = [ + "IJepaPreTrainedModel", + "IJepaModel", + "IJepaForImageClassification", +] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/__init__.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..cb79cea50d6e4ba0633886027cf826248e485aaa --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/__init__.py @@ -0,0 +1,29 @@ +# Copyright 2024 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +from typing import TYPE_CHECKING + +from ...utils import _LazyModule +from ...utils.import_utils import define_import_structure + + +if TYPE_CHECKING: + from .configuration_imagegpt import * + from .feature_extraction_imagegpt import * + from .image_processing_imagegpt import * + from .modeling_imagegpt import * +else: + import sys + + _file = globals()["__file__"] + sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__) diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/configuration_imagegpt.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/configuration_imagegpt.py new file mode 100644 index 0000000000000000000000000000000000000000..1a4e238b0e54cfb2fa3ae610fdf83d4bc06b44e2 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/configuration_imagegpt.py @@ -0,0 +1,199 @@ +# coding=utf-8 +# Copyright 2021 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""OpenAI ImageGPT configuration""" + +from collections import OrderedDict +from typing import TYPE_CHECKING, Any, Mapping, Optional + +from ...configuration_utils import PretrainedConfig +from ...onnx import OnnxConfig +from ...utils import logging + + +if TYPE_CHECKING: + from ... import FeatureExtractionMixin, TensorType + +logger = logging.get_logger(__name__) + + +class ImageGPTConfig(PretrainedConfig): + """ + This is the configuration class to store the configuration of a [`ImageGPTModel`] or a [`TFImageGPTModel`]. It is + used to instantiate a GPT-2 model according to the specified arguments, defining the model architecture. + Instantiating a configuration with the defaults will yield a similar configuration to that of the ImageGPT + [openai/imagegpt-small](https://huggingface.co/openai/imagegpt-small) architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + + Args: + vocab_size (`int`, *optional*, defaults to 512): + Vocabulary size of the GPT-2 model. Defines the number of different tokens that can be represented by the + `inputs_ids` passed when calling [`ImageGPTModel`] or [`TFImageGPTModel`]. + n_positions (`int`, *optional*, defaults to 32*32): + The maximum sequence length that this model might ever be used with. Typically set this to something large + just in case (e.g., 512 or 1024 or 2048). + n_embd (`int`, *optional*, defaults to 512): + Dimensionality of the embeddings and hidden states. + n_layer (`int`, *optional*, defaults to 24): + Number of hidden layers in the Transformer encoder. + n_head (`int`, *optional*, defaults to 8): + Number of attention heads for each attention layer in the Transformer encoder. + n_inner (`int`, *optional*, defaults to None): + Dimensionality of the inner feed-forward layers. `None` will set it to 4 times n_embd + activation_function (`str`, *optional*, defaults to `"quick_gelu"`): + Activation function (can be one of the activation functions defined in src/transformers/activations.py). + Defaults to "quick_gelu". + resid_pdrop (`float`, *optional*, defaults to 0.1): + The dropout probability for all fully connected layers in the embeddings, encoder, and pooler. + embd_pdrop (`int`, *optional*, defaults to 0.1): + The dropout ratio for the embeddings. + attn_pdrop (`float`, *optional*, defaults to 0.1): + The dropout ratio for the attention. + layer_norm_epsilon (`float`, *optional*, defaults to 1e-5): + The epsilon to use in the layer normalization layers. + initializer_range (`float`, *optional*, defaults to 0.02): + The standard deviation of the truncated_normal_initializer for initializing all weight matrices. + scale_attn_weights (`bool`, *optional*, defaults to `True`): + Scale attention weights by dividing by sqrt(hidden_size).. + use_cache (`bool`, *optional*, defaults to `True`): + Whether or not the model should return the last key/values attentions (not used by all models). + scale_attn_by_inverse_layer_idx (`bool`, *optional*, defaults to `False`): + Whether to additionally scale attention weights by `1 / layer_idx + 1`. + reorder_and_upcast_attn (`bool`, *optional*, defaults to `False`): + Whether to scale keys (K) prior to computing attention (dot-product) and upcast attention + dot-product/softmax to float() when training with mixed precision. + + Example: + + ```python + >>> from transformers import ImageGPTConfig, ImageGPTModel + + >>> # Initializing a ImageGPT configuration + >>> configuration = ImageGPTConfig() + + >>> # Initializing a model (with random weights) from the configuration + >>> model = ImageGPTModel(configuration) + + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "imagegpt" + keys_to_ignore_at_inference = ["past_key_values"] + attribute_map = { + "hidden_size": "n_embd", + "max_position_embeddings": "n_positions", + "num_attention_heads": "n_head", + "num_hidden_layers": "n_layer", + } + + def __init__( + self, + vocab_size=512 + 1, # add one for start of sentence (sos) token + n_positions=32 * 32, + n_embd=512, + n_layer=24, + n_head=8, + n_inner=None, + activation_function="quick_gelu", + resid_pdrop=0.1, + embd_pdrop=0.1, + attn_pdrop=0.1, + layer_norm_epsilon=1e-5, + initializer_range=0.02, + scale_attn_weights=True, + use_cache=True, + tie_word_embeddings=False, + scale_attn_by_inverse_layer_idx=False, + reorder_and_upcast_attn=False, + **kwargs, + ): + self.vocab_size = vocab_size + self.n_positions = n_positions + self.n_embd = n_embd + self.n_layer = n_layer + self.n_head = n_head + self.n_inner = n_inner + self.activation_function = activation_function + self.resid_pdrop = resid_pdrop + self.embd_pdrop = embd_pdrop + self.attn_pdrop = attn_pdrop + self.layer_norm_epsilon = layer_norm_epsilon + self.initializer_range = initializer_range + self.scale_attn_weights = scale_attn_weights + self.use_cache = use_cache + self.scale_attn_by_inverse_layer_idx = scale_attn_by_inverse_layer_idx + self.reorder_and_upcast_attn = reorder_and_upcast_attn + self.tie_word_embeddings = tie_word_embeddings + + super().__init__(tie_word_embeddings=tie_word_embeddings, **kwargs) + + +class ImageGPTOnnxConfig(OnnxConfig): + @property + def inputs(self) -> Mapping[str, Mapping[int, str]]: + return OrderedDict( + [ + ("input_ids", {0: "batch", 1: "sequence"}), + ] + ) + + def generate_dummy_inputs( + self, + preprocessor: "FeatureExtractionMixin", + batch_size: int = 1, + seq_length: int = -1, + is_pair: bool = False, + framework: Optional["TensorType"] = None, + num_channels: int = 3, + image_width: int = 32, + image_height: int = 32, + ) -> Mapping[str, Any]: + """ + Generate inputs to provide to the ONNX exporter for the specific framework + + Args: + preprocessor ([`PreTrainedTokenizerBase`] or [`FeatureExtractionMixin`]): + The preprocessor associated with this model configuration. + batch_size (`int`, *optional*, defaults to -1): + The batch size to export the model for (-1 means dynamic axis). + num_choices (`int`, *optional*, defaults to -1): + The number of candidate answers provided for multiple choice task (-1 means dynamic axis). + seq_length (`int`, *optional*, defaults to -1): + The sequence length to export the model for (-1 means dynamic axis). + is_pair (`bool`, *optional*, defaults to `False`): + Indicate if the input is a pair (sentence 1, sentence 2) + framework (`TensorType`, *optional*, defaults to `None`): + The framework (PyTorch or TensorFlow) that the tokenizer will generate tensors for. + num_channels (`int`, *optional*, defaults to 3): + The number of channels of the generated images. + image_width (`int`, *optional*, defaults to 40): + The width of the generated images. + image_height (`int`, *optional*, defaults to 40): + The height of the generated images. + + Returns: + Mapping[str, Tensor] holding the kwargs to provide to the model's forward function + """ + + input_image = self._generate_dummy_images(batch_size, num_channels, image_height, image_width) + inputs = dict(preprocessor(images=input_image, return_tensors=framework)) + + return inputs + + +__all__ = ["ImageGPTConfig", "ImageGPTOnnxConfig"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/convert_imagegpt_original_tf2_to_pytorch.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/convert_imagegpt_original_tf2_to_pytorch.py new file mode 100644 index 0000000000000000000000000000000000000000..182d66b9af282382f4e8ea98380cc7d2ff76e29d --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/convert_imagegpt_original_tf2_to_pytorch.py @@ -0,0 +1,71 @@ +# coding=utf-8 +# Copyright 2021 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Convert OpenAI Image GPT checkpoints.""" + +import argparse + +import torch + +from transformers import ImageGPTConfig, ImageGPTForCausalLM, load_tf_weights_in_imagegpt +from transformers.utils import CONFIG_NAME, WEIGHTS_NAME, logging + + +logging.set_verbosity_info() + + +def convert_imagegpt_checkpoint_to_pytorch(imagegpt_checkpoint_path, model_size, pytorch_dump_folder_path): + # Construct configuration depending on size + MODELS = {"small": (512, 8, 24), "medium": (1024, 8, 36), "large": (1536, 16, 48)} + n_embd, n_head, n_layer = MODELS[model_size] # set model hyperparameters + config = ImageGPTConfig(n_embd=n_embd, n_layer=n_layer, n_head=n_head) + model = ImageGPTForCausalLM(config) + + # Load weights from numpy + load_tf_weights_in_imagegpt(model, config, imagegpt_checkpoint_path) + + # Save pytorch-model + pytorch_weights_dump_path = pytorch_dump_folder_path + "/" + WEIGHTS_NAME + pytorch_config_dump_path = pytorch_dump_folder_path + "/" + CONFIG_NAME + print(f"Save PyTorch model to {pytorch_weights_dump_path}") + torch.save(model.state_dict(), pytorch_weights_dump_path) + print(f"Save configuration file to {pytorch_config_dump_path}") + with open(pytorch_config_dump_path, "w", encoding="utf-8") as f: + f.write(config.to_json_string()) + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + # Required parameters + parser.add_argument( + "--imagegpt_checkpoint_path", + default=None, + type=str, + required=True, + help="Path to the TensorFlow checkpoint path.", + ) + parser.add_argument( + "--model_size", + default=None, + type=str, + required=True, + help="Size of the model (can be either 'small', 'medium' or 'large').", + ) + parser.add_argument( + "--pytorch_dump_folder_path", default=None, type=str, required=True, help="Path to the output PyTorch model." + ) + args = parser.parse_args() + convert_imagegpt_checkpoint_to_pytorch( + args.imagegpt_checkpoint_path, args.model_size, args.pytorch_dump_folder_path + ) diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/feature_extraction_imagegpt.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/feature_extraction_imagegpt.py new file mode 100644 index 0000000000000000000000000000000000000000..15ecddd307c5fbfaf6f612e67bb7e80f4ff5c296 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/feature_extraction_imagegpt.py @@ -0,0 +1,36 @@ +# coding=utf-8 +# Copyright 2021 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Feature extractor class for ImageGPT.""" + +import warnings + +from ...utils import logging +from .image_processing_imagegpt import ImageGPTImageProcessor + + +logger = logging.get_logger(__name__) + + +class ImageGPTFeatureExtractor(ImageGPTImageProcessor): + def __init__(self, *args, **kwargs) -> None: + warnings.warn( + "The class ImageGPTFeatureExtractor is deprecated and will be removed in version 5 of Transformers." + " Please use ImageGPTImageProcessor instead.", + FutureWarning, + ) + super().__init__(*args, **kwargs) + + +__all__ = ["ImageGPTFeatureExtractor"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/image_processing_imagegpt.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/image_processing_imagegpt.py new file mode 100644 index 0000000000000000000000000000000000000000..357baf70d6cf5d77ed5e55e9d67ab9ade48352aa --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/image_processing_imagegpt.py @@ -0,0 +1,302 @@ +# coding=utf-8 +# Copyright 2022 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Image processor class for ImageGPT.""" + +from typing import Dict, List, Optional, Union + +import numpy as np + +from ...image_processing_utils import BaseImageProcessor, BatchFeature, get_size_dict +from ...image_transforms import rescale, resize, to_channel_dimension_format +from ...image_utils import ( + ChannelDimension, + ImageInput, + PILImageResampling, + infer_channel_dimension_format, + is_scaled_image, + make_list_of_images, + to_numpy_array, + valid_images, + validate_preprocess_arguments, +) +from ...utils import TensorType, filter_out_non_signature_kwargs, is_vision_available, logging + + +if is_vision_available(): + import PIL + + +logger = logging.get_logger(__name__) + + +def squared_euclidean_distance(a, b): + b = b.T + a2 = np.sum(np.square(a), axis=1) + b2 = np.sum(np.square(b), axis=0) + ab = np.matmul(a, b) + d = a2[:, None] - 2 * ab + b2[None, :] + return d + + +def color_quantize(x, clusters): + x = x.reshape(-1, 3) + d = squared_euclidean_distance(x, clusters) + return np.argmin(d, axis=1) + + +class ImageGPTImageProcessor(BaseImageProcessor): + r""" + Constructs a ImageGPT image processor. This image processor can be used to resize images to a smaller resolution + (such as 32x32 or 64x64), normalize them and finally color quantize them to obtain sequences of "pixel values" + (color clusters). + + Args: + clusters (`np.ndarray` or `List[List[int]]`, *optional*): + The color clusters to use, of shape `(n_clusters, 3)` when color quantizing. Can be overriden by `clusters` + in `preprocess`. + do_resize (`bool`, *optional*, defaults to `True`): + Whether to resize the image's dimensions to `(size["height"], size["width"])`. Can be overridden by + `do_resize` in `preprocess`. + size (`Dict[str, int]` *optional*, defaults to `{"height": 256, "width": 256}`): + Size of the image after resizing. Can be overridden by `size` in `preprocess`. + resample (`PILImageResampling`, *optional*, defaults to `Resampling.BILINEAR`): + Resampling filter to use if resizing the image. Can be overridden by `resample` in `preprocess`. + do_normalize (`bool`, *optional*, defaults to `True`): + Whether to normalize the image pixel value to between [-1, 1]. Can be overridden by `do_normalize` in + `preprocess`. + do_color_quantize (`bool`, *optional*, defaults to `True`): + Whether to color quantize the image. Can be overridden by `do_color_quantize` in `preprocess`. + """ + + model_input_names = ["pixel_values"] + + def __init__( + self, + # clusters is a first argument to maintain backwards compatibility with the old ImageGPTImageProcessor + clusters: Optional[Union[List[List[int]], np.ndarray]] = None, + do_resize: bool = True, + size: Dict[str, int] = None, + resample: PILImageResampling = PILImageResampling.BILINEAR, + do_normalize: bool = True, + do_color_quantize: bool = True, + **kwargs, + ) -> None: + super().__init__(**kwargs) + size = size if size is not None else {"height": 256, "width": 256} + size = get_size_dict(size) + self.clusters = np.array(clusters) if clusters is not None else None + self.do_resize = do_resize + self.size = size + self.resample = resample + self.do_normalize = do_normalize + self.do_color_quantize = do_color_quantize + + # Copied from transformers.models.vit.image_processing_vit.ViTImageProcessor.resize + def resize( + self, + image: np.ndarray, + size: Dict[str, int], + resample: PILImageResampling = PILImageResampling.BILINEAR, + data_format: Optional[Union[str, ChannelDimension]] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + **kwargs, + ) -> np.ndarray: + """ + Resize an image to `(size["height"], size["width"])`. + + Args: + image (`np.ndarray`): + Image to resize. + size (`Dict[str, int]`): + Dictionary in the format `{"height": int, "width": int}` specifying the size of the output image. + resample (`PILImageResampling`, *optional*, defaults to `PILImageResampling.BILINEAR`): + `PILImageResampling` filter to use when resizing the image e.g. `PILImageResampling.BILINEAR`. + data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format for the output image. If unset, the channel dimension format of the input + image is used. Can be one of: + - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format. + - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format. + - `"none"` or `ChannelDimension.NONE`: image in (height, width) format. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format for the input image. If unset, the channel dimension format is inferred + from the input image. Can be one of: + - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format. + - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format. + - `"none"` or `ChannelDimension.NONE`: image in (height, width) format. + + Returns: + `np.ndarray`: The resized image. + """ + size = get_size_dict(size) + if "height" not in size or "width" not in size: + raise ValueError(f"The `size` dictionary must contain the keys `height` and `width`. Got {size.keys()}") + output_size = (size["height"], size["width"]) + return resize( + image, + size=output_size, + resample=resample, + data_format=data_format, + input_data_format=input_data_format, + **kwargs, + ) + + def normalize( + self, + image: np.ndarray, + data_format: Optional[Union[str, ChannelDimension]] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ) -> np.ndarray: + """ + Normalizes an images' pixel values to between [-1, 1]. + + Args: + image (`np.ndarray`): + Image to normalize. + data_format (`str` or `ChannelDimension`, *optional*): + The channel dimension format of the image. If not provided, it will be the same as the input image. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format of the input image. If not provided, it will be inferred. + """ + image = rescale(image=image, scale=1 / 127.5, data_format=data_format, input_data_format=input_data_format) + image = image - 1 + return image + + @filter_out_non_signature_kwargs() + def preprocess( + self, + images: ImageInput, + do_resize: bool = None, + size: Dict[str, int] = None, + resample: PILImageResampling = None, + do_normalize: bool = None, + do_color_quantize: Optional[bool] = None, + clusters: Optional[Union[List[List[int]], np.ndarray]] = None, + return_tensors: Optional[Union[str, TensorType]] = None, + data_format: Optional[Union[str, ChannelDimension]] = ChannelDimension.FIRST, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ) -> PIL.Image.Image: + """ + Preprocess an image or batch of images. + + Args: + images (`ImageInput`): + Image to preprocess. Expects a single or batch of images with pixel values ranging from 0 to 255. If + passing in images with pixel values between 0 and 1, set `do_normalize=False`. + do_resize (`bool`, *optional*, defaults to `self.do_resize`): + Whether to resize the image. + size (`Dict[str, int]`, *optional*, defaults to `self.size`): + Size of the image after resizing. + resample (`int`, *optional*, defaults to `self.resample`): + Resampling filter to use if resizing the image. This can be one of the enum `PILImageResampling`, Only + has an effect if `do_resize` is set to `True`. + do_normalize (`bool`, *optional*, defaults to `self.do_normalize`): + Whether to normalize the image + do_color_quantize (`bool`, *optional*, defaults to `self.do_color_quantize`): + Whether to color quantize the image. + clusters (`np.ndarray` or `List[List[int]]`, *optional*, defaults to `self.clusters`): + Clusters used to quantize the image of shape `(n_clusters, 3)`. Only has an effect if + `do_color_quantize` is set to `True`. + return_tensors (`str` or `TensorType`, *optional*): + The type of tensors to return. Can be one of: + - Unset: Return a list of `np.ndarray`. + - `TensorType.TENSORFLOW` or `'tf'`: Return a batch of type `tf.Tensor`. + - `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`. + - `TensorType.NUMPY` or `'np'`: Return a batch of type `np.ndarray`. + - `TensorType.JAX` or `'jax'`: Return a batch of type `jax.numpy.ndarray`. + data_format (`ChannelDimension` or `str`, *optional*, defaults to `ChannelDimension.FIRST`): + The channel dimension format for the output image. Can be one of: + - `ChannelDimension.FIRST`: image in (num_channels, height, width) format. + - `ChannelDimension.LAST`: image in (height, width, num_channels) format. + Only has an effect if `do_color_quantize` is set to `False`. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format for the input image. If unset, the channel dimension format is inferred + from the input image. Can be one of: + - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format. + - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format. + - `"none"` or `ChannelDimension.NONE`: image in (height, width) format. + """ + do_resize = do_resize if do_resize is not None else self.do_resize + size = size if size is not None else self.size + size = get_size_dict(size) + resample = resample if resample is not None else self.resample + do_normalize = do_normalize if do_normalize is not None else self.do_normalize + do_color_quantize = do_color_quantize if do_color_quantize is not None else self.do_color_quantize + clusters = clusters if clusters is not None else self.clusters + clusters = np.array(clusters) + + images = make_list_of_images(images) + + if not valid_images(images): + raise ValueError( + "Invalid image type. Must be of type PIL.Image.Image, numpy.ndarray, " + "torch.Tensor, tf.Tensor or jax.ndarray." + ) + + # Here, normalize() is using a constant factor to divide pixel values. + # hence, the method does not need iamge_mean and image_std. + validate_preprocess_arguments( + do_resize=do_resize, + size=size, + resample=resample, + ) + + if do_color_quantize and clusters is None: + raise ValueError("Clusters must be specified if do_color_quantize is True.") + + # All transformations expect numpy arrays. + images = [to_numpy_array(image) for image in images] + + if do_normalize and is_scaled_image(images[0]): + logger.warning_once( + "It looks like you are trying to rescale already rescaled images. If you wish to do this, " + "make sure to set `do_normalize` to `False` and that pixel values are between [-1, 1].", + ) + + if input_data_format is None: + # We assume that all images have the same channel dimension format. + input_data_format = infer_channel_dimension_format(images[0]) + + if do_resize: + images = [ + self.resize(image=image, size=size, resample=resample, input_data_format=input_data_format) + for image in images + ] + + if do_normalize: + images = [self.normalize(image=image, input_data_format=input_data_format) for image in images] + + if do_color_quantize: + images = [to_channel_dimension_format(image, ChannelDimension.LAST, input_data_format) for image in images] + # color quantize from (batch_size, height, width, 3) to (batch_size, height, width) + images = np.array(images) + images = color_quantize(images, clusters).reshape(images.shape[:-1]) + + # flatten to (batch_size, height*width) + batch_size = images.shape[0] + images = images.reshape(batch_size, -1) + + # We need to convert back to a list of images to keep consistent behaviour across processors. + images = list(images) + else: + images = [ + to_channel_dimension_format(image, data_format, input_channel_dim=input_data_format) + for image in images + ] + + data = {"input_ids": images} + return BatchFeature(data=data, tensor_type=return_tensors) + + +__all__ = ["ImageGPTImageProcessor"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/modeling_imagegpt.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/modeling_imagegpt.py new file mode 100644 index 0000000000000000000000000000000000000000..be8b0d6567ec95f39f53298827ac0cc977ca7dfe --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/imagegpt/modeling_imagegpt.py @@ -0,0 +1,1172 @@ +# coding=utf-8 +# Copyright 2021 The OpenAI Team Authors and HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""PyTorch OpenAI ImageGPT model.""" + +import math +import os +import warnings +from typing import Any, Optional, Tuple, Union + +import torch +import torch.utils.checkpoint +from torch import nn +from torch.cuda.amp import autocast +from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss + +from ...activations import ACT2FN +from ...generation import GenerationMixin +from ...modeling_outputs import ( + BaseModelOutputWithPastAndCrossAttentions, + CausalLMOutputWithCrossAttentions, + SequenceClassifierOutputWithPast, +) +from ...modeling_utils import PreTrainedModel +from ...pytorch_utils import Conv1D, find_pruneable_heads_and_indices, prune_conv1d_layer +from ...utils import ( + add_start_docstrings, + add_start_docstrings_to_model_forward, + logging, + replace_return_docstrings, + torch_float, +) +from .configuration_imagegpt import ImageGPTConfig + + +logger = logging.get_logger(__name__) + +_CHECKPOINT_FOR_DOC = "openai/imagegpt-small" +_CONFIG_FOR_DOC = "ImageGPTConfig" + + +def load_tf_weights_in_imagegpt(model, config, imagegpt_checkpoint_path): + """ + Load tf checkpoints in a pytorch model + """ + try: + import re + + import tensorflow as tf + except ImportError: + logger.error( + "Loading a TensorFlow model in PyTorch, requires TensorFlow to be installed. Please see " + "https://www.tensorflow.org/install/ for installation instructions." + ) + raise + tf_path = os.path.abspath(imagegpt_checkpoint_path) + logger.info("Converting TensorFlow checkpoint from {}".format(tf_path)) + # Load weights from TF model + init_vars = tf.train.list_variables(tf_path) + names = [] + arrays = [] + + for name, shape in init_vars: + logger.info("Loading TF weight {} with shape {}".format(name, shape)) + array = tf.train.load_variable(tf_path, name) + names.append(name) + arrays.append(array.squeeze()) + + for name, array in zip(names, arrays): + name = name[6:] # skip "model/" + name = name.split("/") + + # adam_v and adam_m are variables used in AdamWeightDecayOptimizer to calculated m and v + # which are not required for using pretrained model + if any( + n in ["adam_v", "adam_m", "AdamWeightDecayOptimizer", "AdamWeightDecayOptimizer_1", "global_step"] + for n in name + ) or name[-1] in ["_step"]: + logger.info("Skipping {}".format("/".join(name))) + continue + + pointer = model + if name[-1] not in ["wtet"]: + pointer = getattr(pointer, "transformer") + + for m_name in name: + if re.fullmatch(r"[A-Za-z]+\d+", m_name): + scope_names = re.split(r"(\d+)", m_name) + else: + scope_names = [m_name] + + if scope_names[0] == "w" or scope_names[0] == "g": + pointer = getattr(pointer, "weight") + elif scope_names[0] == "b": + pointer = getattr(pointer, "bias") + elif scope_names[0] == "wpe" or scope_names[0] == "wte": + pointer = getattr(pointer, scope_names[0]) + pointer = getattr(pointer, "weight") + elif scope_names[0] in ["q_proj", "k_proj", "v_proj"]: + pointer = getattr(pointer, "c_attn") + pointer = getattr(pointer, "weight") + elif len(name) == 3 and name[1] == "attn" and scope_names[0] == "c_proj": + pointer = getattr(pointer, scope_names[0]) + pointer = getattr(pointer, "weight") + elif scope_names[0] == "wtet": + pointer = getattr(pointer, "lm_head") + pointer = getattr(pointer, "weight") + elif scope_names[0] == "sos": + pointer = getattr(pointer, "wte") + pointer = getattr(pointer, "weight") + else: + pointer = getattr(pointer, scope_names[0]) + if len(scope_names) >= 2: + num = int(scope_names[1]) + pointer = pointer[num] + + if len(name) > 1 and name[1] == "attn" or name[-1] == "wtet" or name[-1] == "sos" or name[-1] == "wte": + pass # array is used to initialize only part of the pointer so sizes won't match + else: + try: + assert pointer.shape == array.shape + except AssertionError as e: + e.args += (pointer.shape, array.shape) + raise + + logger.info("Initialize PyTorch weight {}".format(name)) + + if name[-1] == "q_proj": + pointer.data[:, : config.n_embd] = torch.from_numpy(array.reshape(config.n_embd, config.n_embd)).T + elif name[-1] == "k_proj": + pointer.data[:, config.n_embd : 2 * config.n_embd] = torch.from_numpy( + array.reshape(config.n_embd, config.n_embd) + ).T + elif name[-1] == "v_proj": + pointer.data[:, 2 * config.n_embd :] = torch.from_numpy(array.reshape(config.n_embd, config.n_embd)).T + elif len(name) == 3 and name[1] == "attn" and name[2] == "c_proj": + pointer.data = torch.from_numpy(array.reshape(config.n_embd, config.n_embd)) + elif name[-1] == "wtet": + pointer.data = torch.from_numpy(array) + elif name[-1] == "wte": + pointer.data[: config.vocab_size - 1, :] = torch.from_numpy(array) + elif name[-1] == "sos": + pointer.data[-1] = torch.from_numpy(array) + else: + pointer.data = torch.from_numpy(array) + + return model + + +class ImageGPTLayerNorm(nn.Module): + def __init__(self, hidden_size: Tuple[int], eps: float = 1e-5): + super().__init__() + self.eps = eps + self.weight = nn.Parameter(torch.Tensor(hidden_size)) + + def forward(self, tensor: torch.Tensor) -> torch.Tensor: + # input is not mean centered + tensor = tensor / torch.sqrt(torch.mean(torch.square(tensor), axis=-1, keepdim=True) + self.eps) + tensor = tensor * self.weight + return tensor + + +class ImageGPTAttention(nn.Module): + def __init__(self, config, is_cross_attention: Optional[bool] = False, layer_idx: Optional[int] = None): + super().__init__() + + max_positions = config.max_position_embeddings + self.register_buffer( + "bias", + torch.tril(torch.ones((max_positions, max_positions), dtype=torch.bool)).view( + 1, 1, max_positions, max_positions + ), + persistent=False, + ) + self.register_buffer("masked_bias", torch.tensor(-1e4), persistent=False) + + self.embed_dim = config.hidden_size + self.num_heads = config.num_attention_heads + self.head_dim = self.embed_dim // self.num_heads + self.split_size = self.embed_dim + if self.head_dim * self.num_heads != self.embed_dim: + raise ValueError( + f"`embed_dim` must be divisible by num_heads (got `embed_dim`: {self.embed_dim} and `num_heads`:" + f" {self.num_heads})." + ) + + self.scale_attn_weights = config.scale_attn_weights + self.is_cross_attention = is_cross_attention + + # Layer-wise attention scaling, reordering, and upcasting + self.scale_attn_by_inverse_layer_idx = config.scale_attn_by_inverse_layer_idx + self.layer_idx = layer_idx + self.reorder_and_upcast_attn = config.reorder_and_upcast_attn + + if self.is_cross_attention: + self.c_attn = Conv1D(2 * self.embed_dim, self.embed_dim) + self.q_attn = Conv1D(self.embed_dim, self.embed_dim) + else: + self.c_attn = Conv1D(3 * self.embed_dim, self.embed_dim) + self.c_proj = Conv1D(self.embed_dim, self.embed_dim) + + self.attn_dropout = nn.Dropout(config.attn_pdrop) + self.resid_dropout = nn.Dropout(config.resid_pdrop) + + self.pruned_heads = set() + + def prune_heads(self, heads): + if len(heads) == 0: + return + heads, index = find_pruneable_heads_and_indices(heads, self.num_heads, self.head_dim, self.pruned_heads) + index_attn = torch.cat([index, index + self.split_size, index + (2 * self.split_size)]) + + # Prune conv1d layers + self.c_attn = prune_conv1d_layer(self.c_attn, index_attn, dim=1) + self.c_proj = prune_conv1d_layer(self.c_proj, index, dim=0) + + # Update hyper params + self.split_size = (self.split_size // self.num_heads) * (self.num_heads - len(heads)) + self.num_heads = self.num_heads - len(heads) + self.pruned_heads = self.pruned_heads.union(heads) + + def _attn(self, query, key, value, attention_mask=None, head_mask=None): + attn_weights = torch.matmul(query, key.transpose(-1, -2)) + + if self.scale_attn_weights: + attn_weights = attn_weights / torch_float(value.size(-1) ** 0.5) + + # Layer-wise attention scaling + if self.scale_attn_by_inverse_layer_idx: + attn_weights = attn_weights / float(self.layer_idx + 1) + + if not self.is_cross_attention: + # if only "normal" attention layer implements causal mask + query_length, key_length = query.size(-2), key.size(-2) + causal_mask = self.bias[:, :, key_length - query_length : key_length, :key_length] + mask_value = torch.finfo(attn_weights.dtype).min + # Need to be a tensor, otherwise we get error: `RuntimeError: expected scalar type float but found double`. + # Need to be on the same device, otherwise `RuntimeError: ..., x and y to be on the same device` + mask_value = torch.tensor(mask_value, dtype=attn_weights.dtype).to(attn_weights.device) + attn_weights = torch.where(causal_mask, attn_weights, mask_value) + + if attention_mask is not None: + # Apply the attention mask + attn_weights = attn_weights + attention_mask + + attn_weights = nn.Softmax(dim=-1)(attn_weights) + + # Downcast (if necessary) back to V's dtype (if in mixed-precision) -- No-Op otherwise + attn_weights = attn_weights.type(value.dtype) + attn_weights = self.attn_dropout(attn_weights) + + # Mask heads if we want to + if head_mask is not None: + attn_weights = attn_weights * head_mask + + attn_output = torch.matmul(attn_weights, value) + + return attn_output, attn_weights + + def _upcast_and_reordered_attn(self, query, key, value, attention_mask=None, head_mask=None): + # Use `torch.baddbmm` (a bit more efficient w/ alpha param for scaling -- from Megatron-LM) + bsz, num_heads, q_seq_len, dk = query.size() + _, _, k_seq_len, _ = key.size() + + # Preallocate attn_weights for `baddbmm` + attn_weights = torch.empty(bsz * num_heads, q_seq_len, k_seq_len, dtype=torch.float32, device=query.device) + + # Compute Scale Factor + scale_factor = 1.0 + if self.scale_attn_weights: + scale_factor /= float(value.size(-1)) ** 0.5 + + if self.scale_attn_by_inverse_layer_idx: + scale_factor /= float(self.layer_idx + 1) + + # Upcast (turn off autocast) and reorder (Scale K by 1 / root(dk)) + with autocast(enabled=False): + q, k = query.reshape(-1, q_seq_len, dk), key.transpose(-1, -2).reshape(-1, dk, k_seq_len) + attn_weights = torch.baddbmm(attn_weights, q.float(), k.float(), beta=0, alpha=scale_factor) + attn_weights = attn_weights.reshape(bsz, num_heads, q_seq_len, k_seq_len) + + if not self.is_cross_attention: + # if only "normal" attention layer implements causal mask + query_length, key_length = query.size(-2), key.size(-2) + causal_mask = self.bias[:, :, key_length - query_length : key_length, :key_length] + mask_value = torch.finfo(attn_weights.dtype).min + # Need to be a tensor, otherwise we get error: `RuntimeError: expected scalar type float but found double`. + # Need to be on the same device, otherwise `RuntimeError: ..., x and y to be on the same device` + mask_value = torch.tensor(mask_value, dtype=attn_weights.dtype).to(attn_weights.device) + attn_weights = torch.where(causal_mask, attn_weights, mask_value) + + if attention_mask is not None: + # Apply the attention mask + attn_weights = attn_weights + attention_mask + + attn_weights = nn.Softmax(dim=-1)(attn_weights) + + # Downcast (if necessary) back to V's dtype (if in mixed-precision) -- No-Op if otherwise + if attn_weights.dtype != torch.float32: + raise RuntimeError("Error with upcasting, attn_weights does not have dtype torch.float32") + attn_weights = attn_weights.type(value.dtype) + attn_weights = self.attn_dropout(attn_weights) + + # Mask heads if we want to + if head_mask is not None: + attn_weights = attn_weights * head_mask + + attn_output = torch.matmul(attn_weights, value) + + return attn_output, attn_weights + + def _split_heads(self, tensor, num_heads, attn_head_size): + """ + Splits hidden_size dim into attn_head_size and num_heads + """ + new_shape = tensor.size()[:-1] + (num_heads, attn_head_size) + tensor = tensor.view(*new_shape) + return tensor.permute(0, 2, 1, 3) # (batch, head, seq_length, head_features) + + def _merge_heads(self, tensor, num_heads, attn_head_size): + """ + Merges attn_head_size dim and num_attn_heads dim into hidden_size + """ + tensor = tensor.permute(0, 2, 1, 3).contiguous() + new_shape = tensor.size()[:-2] + (num_heads * attn_head_size,) + return tensor.view(new_shape) + + def forward( + self, + hidden_states: torch.Tensor, + layer_past: Optional[bool] = None, + attention_mask: Optional[torch.Tensor] = None, + head_mask: Optional[torch.Tensor] = None, + encoder_hidden_states: Optional[torch.Tensor] = None, + encoder_attention_mask: Optional[torch.Tensor] = None, + use_cache: Optional[bool] = False, + output_attentions: Optional[bool] = False, + ) -> tuple: + if encoder_hidden_states is not None: + if not hasattr(self, "q_attn"): + raise ValueError( + "If class is used as cross attention, the weights `q_attn` have to be defined. " + "Please make sure to instantiate class with `ImageGPTAttention(..., is_cross_attention=True)`." + ) + + query = self.q_attn(hidden_states) + key, value = self.c_attn(encoder_hidden_states).split(self.split_size, dim=2) + attention_mask = encoder_attention_mask + else: + query, key, value = self.c_attn(hidden_states).split(self.split_size, dim=2) + + query = self._split_heads(query, self.num_heads, self.head_dim) + key = self._split_heads(key, self.num_heads, self.head_dim) + value = self._split_heads(value, self.num_heads, self.head_dim) + + if layer_past is not None: + past_key, past_value = layer_past + key = torch.cat((past_key, key), dim=-2) + value = torch.cat((past_value, value), dim=-2) + + if use_cache is True: + present = (key, value) + else: + present = None + + if self.reorder_and_upcast_attn: + attn_output, attn_weights = self._upcast_and_reordered_attn(query, key, value, attention_mask, head_mask) + else: + attn_output, attn_weights = self._attn(query, key, value, attention_mask, head_mask) + + attn_output = self._merge_heads(attn_output, self.num_heads, self.head_dim) + attn_output = self.c_proj(attn_output) + attn_output = self.resid_dropout(attn_output) + + outputs = (attn_output, present) + if output_attentions: + outputs += (attn_weights,) + + return outputs # a, present, (attentions) + + +class ImageGPTMLP(nn.Module): + def __init__(self, intermediate_size, config): + super().__init__() + embed_dim = config.hidden_size + self.c_fc = Conv1D(intermediate_size, embed_dim) + self.c_proj = Conv1D(embed_dim, intermediate_size) + self.act = ACT2FN[config.activation_function] + self.dropout = nn.Dropout(config.resid_pdrop) + + def forward(self, hidden_states: torch.Tensor) -> torch.Tensor: + hidden_states = self.c_fc(hidden_states) + hidden_states = self.act(hidden_states) + hidden_states = self.c_proj(hidden_states) + hidden_states = self.dropout(hidden_states) + return hidden_states + + +class ImageGPTBlock(nn.Module): + def __init__(self, config, layer_idx=None): + super().__init__() + hidden_size = config.hidden_size + inner_dim = config.n_inner if config.n_inner is not None else 4 * hidden_size + + self.ln_1 = ImageGPTLayerNorm(hidden_size, eps=config.layer_norm_epsilon) + self.attn = ImageGPTAttention(config, layer_idx=layer_idx) + self.ln_2 = ImageGPTLayerNorm(hidden_size, eps=config.layer_norm_epsilon) + + if config.add_cross_attention: + self.crossattention = ImageGPTAttention(config, is_cross_attention=True, layer_idx=layer_idx) + self.ln_cross_attn = ImageGPTLayerNorm(hidden_size, eps=config.layer_norm_epsilon) + + self.mlp = ImageGPTMLP(inner_dim, config) + + def forward( + self, + hidden_states: torch.Tensor, + layer_past: Optional[bool] = None, + attention_mask: Optional[torch.Tensor] = None, + head_mask: Optional[torch.Tensor] = None, + encoder_hidden_states: Optional[torch.Tensor] = None, + encoder_attention_mask: Optional[torch.Tensor] = None, + use_cache: Optional[bool] = False, + output_attentions: Optional[bool] = False, + ) -> tuple: + residual = hidden_states + hidden_states = self.ln_1(hidden_states) + attn_outputs = self.attn( + hidden_states, + layer_past=layer_past, + attention_mask=attention_mask, + head_mask=head_mask, + use_cache=use_cache, + output_attentions=output_attentions, + ) + attn_output = attn_outputs[0] # output_attn: a, present, (attentions) + outputs = attn_outputs[1:] + # residual connection + hidden_states = attn_output + residual + + if encoder_hidden_states is not None: + # add one self-attention block for cross-attention + if not hasattr(self, "crossattention"): + raise ValueError( + f"If `encoder_hidden_states` are passed, {self} has to be instantiated with " + "cross-attention layers by setting `config.add_cross_attention=True`" + ) + residual = hidden_states + hidden_states = self.ln_cross_attn(hidden_states) + cross_attn_outputs = self.crossattention( + hidden_states, + attention_mask=attention_mask, + head_mask=head_mask, + encoder_hidden_states=encoder_hidden_states, + encoder_attention_mask=encoder_attention_mask, + output_attentions=output_attentions, + ) + attn_output = cross_attn_outputs[0] + # residual connection + hidden_states = residual + attn_output + outputs = outputs + cross_attn_outputs[2:] # add cross attentions if we output attention weights + + residual = hidden_states + hidden_states = self.ln_2(hidden_states) + feed_forward_hidden_states = self.mlp(hidden_states) + # residual connection + hidden_states = residual + feed_forward_hidden_states + + outputs = (hidden_states,) + (outputs if use_cache else outputs[1:]) + + return outputs # hidden_states, present, (attentions, cross_attentions) + + +class ImageGPTPreTrainedModel(PreTrainedModel): + """ + An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained + models. + """ + + config_class = ImageGPTConfig + load_tf_weights = load_tf_weights_in_imagegpt + base_model_prefix = "transformer" + main_input_name = "input_ids" + supports_gradient_checkpointing = True + _no_split_modules = ["ImageGPTBlock"] + + def __init__(self, *inputs, **kwargs): + super().__init__(*inputs, **kwargs) + + def _init_weights(self, module): + """Initialize the weights.""" + if isinstance(module, (nn.Linear, Conv1D)): + # Slightly different from the TF version which uses truncated_normal for initialization + # cf https://github.com/pytorch/pytorch/pull/5617 + module.weight.data.normal_(mean=0.0, std=self.config.initializer_range) + if module.bias is not None: + module.bias.data.zero_() + elif isinstance(module, nn.Embedding): + module.weight.data.normal_(mean=0.0, std=self.config.initializer_range) + if module.padding_idx is not None: + module.weight.data[module.padding_idx].zero_() + elif isinstance(module, ImageGPTLayerNorm): + module.weight.data.fill_(1.0) + + # Reinitialize selected weights subject to the OpenAI GPT-2 Paper Scheme: + # > A modified initialization which accounts for the accumulation on the residual path with model depth. Scale + # > the weights of residual layers at initialization by a factor of 1/√N where N is the # of residual layers. + # > -- GPT-2 :: https://openai.com/blog/better-language-models/ + # + # Reference (Megatron-LM): https://github.com/NVIDIA/Megatron-LM/blob/main/megatron/model/gpt_model.py + for name, p in module.named_parameters(): + if "c_proj" in name and "weight" in name: + # Special Scaled Initialization --> There are 2 Layer Norms per Transformer Block + p.data.normal_(mean=0.0, std=(self.config.initializer_range / math.sqrt(2 * self.config.n_layer))) + + +IMAGEGPT_START_DOCSTRING = r""" + + This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the + library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads + etc.) + + This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. + Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage + and behavior. + + Parameters: + config ([`ImageGPTConfig`]): Model configuration class with all the parameters of the model. + Initializing with a config file does not load the weights associated with the model, only the + configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + +IMAGEGPT_INPUTS_DOCSTRING = r""" + Args: + input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`): + `input_ids_length` = `sequence_length` if `past_key_values` is `None` else + `past_key_values[0][0].shape[-2]` (`sequence_length` of input past key value states). Indices of input + sequence tokens in the vocabulary. + + If `past_key_values` is used, only `input_ids` that do not have their past calculated should be passed as + `input_ids`. + + Indices can be obtained using [`AutoImageProcessor`]. See [`ImageGPTImageProcessor.__call__`] for details. + + past_key_values (`Tuple[Tuple[torch.Tensor]]` of length `config.n_layers`): + Contains precomputed hidden-states (key and values in the attention blocks) as computed by the model (see + `past_key_values` output below). Can be used to speed up sequential decoding. The `input_ids` which have + their past given to this model should not be passed as `input_ids` as they have already been computed. + attention_mask (`torch.FloatTensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + token_type_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Segment token indices to indicate first and second portions of the inputs. Indices are selected in `[0, + 1]`: + + - 0 corresponds to a *sentence A* token, + - 1 corresponds to a *sentence B* token. + + [What are token type IDs?](../glossary#token-type-ids) + position_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0, + config.max_position_embeddings - 1]`. + + [What are position IDs?](../glossary#position-ids) + head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*): + Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`: + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This + is useful if you want more control over how to convert `input_ids` indices into associated vectors than the + model's internal embedding lookup matrix. + + If `past_key_values` is used, optionally only the last `inputs_embeds` have to be input (see + `past_key_values`). + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. +""" + + +@add_start_docstrings( + "The bare ImageGPT Model transformer outputting raw hidden-states without any specific head on top.", + IMAGEGPT_START_DOCSTRING, +) +class ImageGPTModel(ImageGPTPreTrainedModel): + def __init__(self, config: ImageGPTConfig): + super().__init__(config) + + self.embed_dim = config.hidden_size + + self.wte = nn.Embedding(config.vocab_size, self.embed_dim) + self.wpe = nn.Embedding(config.max_position_embeddings, self.embed_dim) + + self.drop = nn.Dropout(config.embd_pdrop) + self.h = nn.ModuleList([ImageGPTBlock(config, layer_idx=i) for i in range(config.num_hidden_layers)]) + self.ln_f = ImageGPTLayerNorm(self.embed_dim, eps=config.layer_norm_epsilon) + + # Model parallel + self.model_parallel = False + self.device_map = None + self.gradient_checkpointing = False + # Initialize weights and apply final processing + self.post_init() + + def get_input_embeddings(self): + return self.wte + + def set_input_embeddings(self, new_embeddings): + self.wte = new_embeddings + + def _prune_heads(self, heads_to_prune): + """ + Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} + """ + for layer, heads in heads_to_prune.items(): + self.h[layer].attn.prune_heads(heads) + + @add_start_docstrings_to_model_forward(IMAGEGPT_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=BaseModelOutputWithPastAndCrossAttentions, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: Optional[torch.Tensor] = None, + past_key_values: Optional[Tuple[Tuple[torch.Tensor]]] = None, + attention_mask: Optional[torch.Tensor] = None, + token_type_ids: Optional[torch.Tensor] = None, + position_ids: Optional[torch.Tensor] = None, + head_mask: Optional[torch.Tensor] = None, + inputs_embeds: Optional[torch.Tensor] = None, + encoder_hidden_states: Optional[torch.Tensor] = None, + encoder_attention_mask: Optional[torch.Tensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + **kwargs: Any, + ) -> Union[Tuple, BaseModelOutputWithPastAndCrossAttentions]: + r""" + labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Labels for language modeling. Note that the labels **are shifted** inside the model, i.e. you can set + `labels = input_ids` Indices are selected in `[-100, 0, ..., config.vocab_size]` All labels set to `-100` + are ignored (masked), the loss is only computed for labels in `[0, ..., config.vocab_size]` + + Returns: + + Examples: + + ```python + >>> from transformers import AutoImageProcessor, ImageGPTModel + >>> from PIL import Image + >>> import requests + + >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg" + >>> image = Image.open(requests.get(url, stream=True).raw) + + >>> image_processor = AutoImageProcessor.from_pretrained("openai/imagegpt-small") + >>> model = ImageGPTModel.from_pretrained("openai/imagegpt-small") + + >>> inputs = image_processor(images=image, return_tensors="pt") + >>> outputs = model(**inputs) + >>> last_hidden_states = outputs.last_hidden_state + ```""" + + if "pixel_values" in kwargs: + warnings.warn( + "The `pixel_values` argument is deprecated and will be removed in v4.47, use `input_ids` instead.", + FutureWarning, + ) + + if input_ids is not None: + raise ValueError( + "You cannot pass both `pixel_values` and `input_ids`. Please make sure to only pass `input_ids`." + ) + + input_ids = kwargs.pop("pixel_values") + + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + use_cache = use_cache if use_cache is not None else self.config.use_cache + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if input_ids is not None and inputs_embeds is not None: + raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time") + elif input_ids is not None: + self.warn_if_padding_and_no_attention_mask(input_ids, attention_mask) + input_shape = input_ids.size() + input_ids = input_ids.view(-1, input_shape[-1]) + batch_size = input_ids.shape[0] + elif inputs_embeds is not None: + input_shape = inputs_embeds.size()[:-1] + batch_size = inputs_embeds.shape[0] + else: + raise ValueError("You have to specify either input_ids or inputs_embeds") + + device = input_ids.device if input_ids is not None else inputs_embeds.device + + if token_type_ids is not None: + token_type_ids = token_type_ids.view(-1, input_shape[-1]) + + if past_key_values is None: + past_length = 0 + past_key_values = tuple([None] * len(self.h)) + else: + past_length = past_key_values[0][0].size(-2) + if position_ids is None: + position_ids = torch.arange(past_length, input_shape[-1] + past_length, dtype=torch.long, device=device) + position_ids = position_ids.unsqueeze(0) + + # ImageGPTAttention mask. + if attention_mask is not None: + if batch_size <= 0: + raise ValueError("batch_size has to be defined and > 0") + attention_mask = attention_mask.view(batch_size, -1) + # We create a 3D attention mask from a 2D tensor mask. + # Sizes are [batch_size, 1, 1, to_seq_length] + # So we can broadcast to [batch_size, num_heads, from_seq_length, to_seq_length] + # this attention mask is more simple than the triangular masking of causal attention + # used in OpenAI GPT, we just need to prepare the broadcast dimension here. + attention_mask = attention_mask[:, None, None, :] + + # Since attention_mask is 1.0 for positions we want to attend and 0.0 for + # masked positions, this operation will create a tensor which is 0.0 for + # positions we want to attend and the dtype's smallest value for masked positions. + # Since we are adding it to the raw scores before the softmax, this is + # effectively the same as removing these entirely. + attention_mask = attention_mask.to(dtype=self.dtype) # fp16 compatibility + attention_mask = (1.0 - attention_mask) * torch.finfo(self.dtype).min + + # If a 2D or 3D attention mask is provided for the cross-attention + # we need to make broadcastable to [batch_size, num_heads, seq_length, seq_length] + if self.config.add_cross_attention and encoder_hidden_states is not None: + encoder_batch_size, encoder_sequence_length, _ = encoder_hidden_states.size() + encoder_hidden_shape = (encoder_batch_size, encoder_sequence_length) + if encoder_attention_mask is None: + encoder_attention_mask = torch.ones(encoder_hidden_shape, device=device) + encoder_attention_mask = self.invert_attention_mask(encoder_attention_mask) + else: + encoder_attention_mask = None + + # Prepare head mask if needed + # 1.0 in head_mask indicate we keep the head + # attention_probs has shape bsz x n_heads x N x N + # head_mask has shape n_layer x batch x n_heads x N x N + head_mask = self.get_head_mask(head_mask, self.config.n_layer) + + if inputs_embeds is None: + inputs_embeds = self.wte(input_ids) + position_embeds = self.wpe(position_ids) + hidden_states = inputs_embeds + position_embeds.to(inputs_embeds.device) + + if token_type_ids is not None: + token_type_embeds = self.wte(token_type_ids) + hidden_states = hidden_states + token_type_embeds + + hidden_states = self.drop(hidden_states) + + output_shape = input_shape + (hidden_states.size(-1),) + + if self.gradient_checkpointing and self.training: + if use_cache: + logger.warning_once( + "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..." + ) + use_cache = False + + presents = () if use_cache else None + all_self_attentions = () if output_attentions else None + all_cross_attentions = () if output_attentions and self.config.add_cross_attention else None + all_hidden_states = () if output_hidden_states else None + for i, (block, layer_past) in enumerate(zip(self.h, past_key_values)): + # Model parallel + if self.model_parallel: + torch.cuda.set_device(hidden_states.device) + # Ensure layer_past is on same device as hidden_states (might not be correct) + if layer_past is not None: + layer_past = tuple(past_state.to(hidden_states.device) for past_state in layer_past) + # Ensure that attention_mask is always on the same device as hidden_states + if attention_mask is not None: + attention_mask = attention_mask.to(hidden_states.device) + if isinstance(head_mask, torch.Tensor): + head_mask = head_mask.to(hidden_states.device) + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + if self.gradient_checkpointing and self.training: + outputs = self._gradient_checkpointing_func( + block.__call__, + hidden_states, + None, + attention_mask, + head_mask[i], + encoder_hidden_states, + encoder_attention_mask, + use_cache, + output_attentions, + ) + else: + outputs = block( + hidden_states, + layer_past=layer_past, + attention_mask=attention_mask, + head_mask=head_mask[i], + encoder_hidden_states=encoder_hidden_states, + encoder_attention_mask=encoder_attention_mask, + use_cache=use_cache, + output_attentions=output_attentions, + ) + + hidden_states = outputs[0] + if use_cache is True: + presents = presents + (outputs[1],) + + if output_attentions: + all_self_attentions = all_self_attentions + (outputs[2 if use_cache else 1],) + if self.config.add_cross_attention: + all_cross_attentions = all_cross_attentions + (outputs[3 if use_cache else 2],) + + # Model Parallel: If it's the last layer for that device, put things on the next device + if self.model_parallel: + for k, v in self.device_map.items(): + if i == v[-1] and "cuda:" + str(k) != self.last_device: + hidden_states = hidden_states.to("cuda:" + str(k + 1)) + + hidden_states = self.ln_f(hidden_states) + + hidden_states = hidden_states.view(*output_shape) + # Add last hidden state + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + if not return_dict: + return tuple( + v + for v in [hidden_states, presents, all_hidden_states, all_self_attentions, all_cross_attentions] + if v is not None + ) + + return BaseModelOutputWithPastAndCrossAttentions( + last_hidden_state=hidden_states, + past_key_values=presents, + hidden_states=all_hidden_states, + attentions=all_self_attentions, + cross_attentions=all_cross_attentions, + ) + + +@add_start_docstrings( + """ + The ImageGPT Model transformer with a language modeling head on top (linear layer with weights tied to the input + embeddings). + """, + IMAGEGPT_START_DOCSTRING, +) +class ImageGPTForCausalImageModeling(ImageGPTPreTrainedModel, GenerationMixin): + _tied_weights_keys = ["lm_head.weight"] + + def __init__(self, config: ImageGPTConfig): + super().__init__(config) + self.transformer = ImageGPTModel(config) + self.lm_head = nn.Linear(config.n_embd, config.vocab_size - 1, bias=False) + + # Model parallel + self.model_parallel = False + self.device_map = None + # Initialize weights and apply final processing + self.post_init() + + def get_output_embeddings(self): + return self.lm_head + + def set_output_embeddings(self, new_embeddings): + self.lm_head = new_embeddings + + @add_start_docstrings_to_model_forward(IMAGEGPT_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=CausalLMOutputWithCrossAttentions, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: Optional[torch.Tensor] = None, + past_key_values: Optional[Tuple[Tuple[torch.Tensor]]] = None, + attention_mask: Optional[torch.Tensor] = None, + token_type_ids: Optional[torch.Tensor] = None, + position_ids: Optional[torch.Tensor] = None, + head_mask: Optional[torch.Tensor] = None, + inputs_embeds: Optional[torch.Tensor] = None, + encoder_hidden_states: Optional[torch.Tensor] = None, + encoder_attention_mask: Optional[torch.Tensor] = None, + labels: Optional[torch.Tensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + **kwargs: Any, + ) -> Union[Tuple, CausalLMOutputWithCrossAttentions]: + r""" + labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Labels for language modeling. Note that the labels **are shifted** inside the model, i.e. you can set + `labels = input_ids` Indices are selected in `[-100, 0, ..., config.vocab_size]` All labels set to `-100` + are ignored (masked), the loss is only computed for labels in `[0, ..., config.vocab_size]` + + Returns: + + Examples: + + ```python + >>> from transformers import AutoImageProcessor, ImageGPTForCausalImageModeling + >>> import torch + >>> import matplotlib.pyplot as plt + >>> import numpy as np + + >>> image_processor = AutoImageProcessor.from_pretrained("openai/imagegpt-small") + >>> model = ImageGPTForCausalImageModeling.from_pretrained("openai/imagegpt-small") + >>> device = torch.device("cuda" if torch.cuda.is_available() else "cpu") + >>> model.to(device) # doctest: +IGNORE_RESULT + + >>> # unconditional generation of 8 images + >>> batch_size = 4 + >>> context = torch.full((batch_size, 1), model.config.vocab_size - 1) # initialize with SOS token + >>> context = context.to(device) + >>> output = model.generate( + ... input_ids=context, max_length=model.config.n_positions + 1, temperature=1.0, do_sample=True, top_k=40 + ... ) + + >>> clusters = image_processor.clusters + >>> height = image_processor.size["height"] + >>> width = image_processor.size["width"] + + >>> samples = output[:, 1:].cpu().detach().numpy() + >>> samples_img = [ + ... np.reshape(np.rint(127.5 * (clusters[s] + 1.0)), [height, width, 3]).astype(np.uint8) for s in samples + ... ] # convert color cluster tokens back to pixels + >>> f, axes = plt.subplots(1, batch_size, dpi=300) + + >>> for img, ax in zip(samples_img, axes): # doctest: +IGNORE_RESULT + ... ax.axis("off") + ... ax.imshow(img) + ```""" + + if "pixel_values" in kwargs: + warnings.warn( + "The `pixel_values` argument is deprecated and will be removed in v4.47, use `input_ids` instead.", + FutureWarning, + ) + + if input_ids is not None: + raise ValueError( + "You cannot pass both `pixel_values` and `input_ids`. Please make sure to only pass `input_ids`." + ) + + input_ids = kwargs.pop("pixel_values") + + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + transformer_outputs = self.transformer( + input_ids, + past_key_values=past_key_values, + attention_mask=attention_mask, + token_type_ids=token_type_ids, + position_ids=position_ids, + head_mask=head_mask, + inputs_embeds=inputs_embeds, + encoder_hidden_states=encoder_hidden_states, + encoder_attention_mask=encoder_attention_mask, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + hidden_states = transformer_outputs[0] + + lm_logits = self.lm_head(hidden_states) + + loss = None + if labels is not None: + # Shift so that tokens < n predict n + shift_logits = lm_logits[..., :-1, :].contiguous() + shift_labels = labels[..., 1:].contiguous() + # Flatten the tokens + loss_fct = CrossEntropyLoss() + loss = loss_fct(shift_logits.view(-1, shift_logits.size(-1)), shift_labels.view(-1)) + + if not return_dict: + output = (lm_logits,) + transformer_outputs[1:] + return ((loss,) + output) if loss is not None else output + + return CausalLMOutputWithCrossAttentions( + loss=loss, + logits=lm_logits, + past_key_values=transformer_outputs.past_key_values, + hidden_states=transformer_outputs.hidden_states, + attentions=transformer_outputs.attentions, + cross_attentions=transformer_outputs.cross_attentions, + ) + + @staticmethod + def _reorder_cache( + past_key_values: Tuple[Tuple[torch.Tensor]], beam_idx: torch.Tensor + ) -> Tuple[Tuple[torch.Tensor]]: + """ + This function is used to re-order the `past_key_values` cache if [`~PreTrainedModel.beam_search`] or + [`~PreTrainedModel.beam_sample`] is called. This is required to match `past_key_values` with the correct + beam_idx at every generation step. + """ + return tuple( + tuple(past_state.index_select(0, beam_idx.to(past_state.device)) for past_state in layer_past) + for layer_past in past_key_values + ) + + +@add_start_docstrings( + """ + The ImageGPT Model transformer with an image classification head on top (linear layer). + [`ImageGPTForImageClassification`] average-pools the hidden states in order to do the classification. + """, + IMAGEGPT_START_DOCSTRING, +) +class ImageGPTForImageClassification(ImageGPTPreTrainedModel): + def __init__(self, config: ImageGPTConfig): + super().__init__(config) + self.num_labels = config.num_labels + self.transformer = ImageGPTModel(config) + self.score = nn.Linear(config.n_embd, self.num_labels, bias=False) + + # Initialize weights and apply final processing + self.post_init() + + @add_start_docstrings_to_model_forward(IMAGEGPT_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=SequenceClassifierOutputWithPast, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: Optional[torch.Tensor] = None, + past_key_values: Optional[Tuple[Tuple[torch.Tensor]]] = None, + attention_mask: Optional[torch.Tensor] = None, + token_type_ids: Optional[torch.Tensor] = None, + position_ids: Optional[torch.Tensor] = None, + head_mask: Optional[torch.Tensor] = None, + inputs_embeds: Optional[torch.Tensor] = None, + labels: Optional[torch.Tensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + **kwargs: Any, + ) -> Union[Tuple, SequenceClassifierOutputWithPast]: + r""" + labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*): + Labels for computing the sequence classification/regression loss. Indices should be in `[0, ..., + config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If + `config.num_labels > 1` a classification loss is computed (Cross-Entropy). + + Returns: + + Examples: + + ```python + >>> from transformers import AutoImageProcessor, ImageGPTForImageClassification + >>> from PIL import Image + >>> import requests + + >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg" + >>> image = Image.open(requests.get(url, stream=True).raw) + + >>> image_processor = AutoImageProcessor.from_pretrained("openai/imagegpt-small") + >>> model = ImageGPTForImageClassification.from_pretrained("openai/imagegpt-small") + + >>> inputs = image_processor(images=image, return_tensors="pt") + >>> outputs = model(**inputs) + >>> logits = outputs.logits + ```""" + + if "pixel_values" in kwargs: + warnings.warn( + "The `pixel_values` argument is deprecated and will be removed in v4.47, use `input_ids` instead.", + FutureWarning, + ) + + if input_ids is not None: + raise ValueError( + "You cannot pass both `pixel_values` and `input_ids`. Please make sure to only pass `input_ids`." + ) + + input_ids = kwargs.pop("pixel_values") + + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + transformer_outputs = self.transformer( + input_ids, + past_key_values=past_key_values, + attention_mask=attention_mask, + token_type_ids=token_type_ids, + position_ids=position_ids, + head_mask=head_mask, + inputs_embeds=inputs_embeds, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + hidden_states = transformer_outputs[0] + # average-pool the hidden states along the sequence dimension + pooled_hidden_states = hidden_states.mean(dim=1) + # project from (batch_size, hidden_size) to (batch_size, num_labels) + logits = self.score(pooled_hidden_states) + + loss = None + if labels is not None: + if self.config.problem_type is None: + if self.num_labels == 1: + self.config.problem_type = "regression" + elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int): + self.config.problem_type = "single_label_classification" + else: + self.config.problem_type = "multi_label_classification" + + if self.config.problem_type == "regression": + loss_fct = MSELoss() + if self.num_labels == 1: + loss = loss_fct(logits.squeeze(), labels.squeeze()) + else: + loss = loss_fct(logits, labels) + elif self.config.problem_type == "single_label_classification": + loss_fct = CrossEntropyLoss() + loss = loss_fct(logits.view(-1, self.num_labels), labels.view(-1)) + elif self.config.problem_type == "multi_label_classification": + loss_fct = BCEWithLogitsLoss() + loss = loss_fct(logits, labels) + if not return_dict: + output = (logits,) + transformer_outputs[1:] + return ((loss,) + output) if loss is not None else output + + return SequenceClassifierOutputWithPast( + loss=loss, + logits=logits, + past_key_values=transformer_outputs.past_key_values, + hidden_states=transformer_outputs.hidden_states, + attentions=transformer_outputs.attentions, + ) + + +__all__ = [ + "ImageGPTForCausalImageModeling", + "ImageGPTForImageClassification", + "ImageGPTModel", + "ImageGPTPreTrainedModel", + "load_tf_weights_in_imagegpt", +] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/informer/__init__.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/informer/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..cd7a901eab235ecd14d2127a9eb78022c720c0f3 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/informer/__init__.py @@ -0,0 +1,27 @@ +# Copyright 2024 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +from typing import TYPE_CHECKING + +from ...utils import _LazyModule +from ...utils.import_utils import define_import_structure + + +if TYPE_CHECKING: + from .configuration_informer import * + from .modeling_informer import * +else: + import sys + + _file = globals()["__file__"] + sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__) diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/informer/configuration_informer.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/informer/configuration_informer.py new file mode 100644 index 0000000000000000000000000000000000000000..028f5b32295e37eb534f77ba9da71fec623eb094 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/informer/configuration_informer.py @@ -0,0 +1,249 @@ +# coding=utf-8 +# Copyright 2023 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Informer model configuration""" + +from typing import List, Optional, Union + +from ...configuration_utils import PretrainedConfig +from ...utils import logging + + +logger = logging.get_logger(__name__) + + +class InformerConfig(PretrainedConfig): + r""" + This is the configuration class to store the configuration of an [`InformerModel`]. It is used to instantiate an + Informer model according to the specified arguments, defining the model architecture. Instantiating a configuration + with the defaults will yield a similar configuration to that of the Informer + [huggingface/informer-tourism-monthly](https://huggingface.co/huggingface/informer-tourism-monthly) architecture. + + Configuration objects inherit from [`PretrainedConfig`] can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Args: + prediction_length (`int`): + The prediction length for the decoder. In other words, the prediction horizon of the model. This value is + typically dictated by the dataset and we recommend to set it appropriately. + context_length (`int`, *optional*, defaults to `prediction_length`): + The context length for the encoder. If `None`, the context length will be the same as the + `prediction_length`. + distribution_output (`string`, *optional*, defaults to `"student_t"`): + The distribution emission head for the model. Could be either "student_t", "normal" or "negative_binomial". + loss (`string`, *optional*, defaults to `"nll"`): + The loss function for the model corresponding to the `distribution_output` head. For parametric + distributions it is the negative log likelihood (nll) - which currently is the only supported one. + input_size (`int`, *optional*, defaults to 1): + The size of the target variable which by default is 1 for univariate targets. Would be > 1 in case of + multivariate targets. + scaling (`string` or `bool`, *optional* defaults to `"mean"`): + Whether to scale the input targets via "mean" scaler, "std" scaler or no scaler if `None`. If `True`, the + scaler is set to "mean". + lags_sequence (`list[int]`, *optional*, defaults to `[1, 2, 3, 4, 5, 6, 7]`): + The lags of the input time series as covariates often dictated by the frequency of the data. Default is + `[1, 2, 3, 4, 5, 6, 7]` but we recommend to change it based on the dataset appropriately. + num_time_features (`int`, *optional*, defaults to 0): + The number of time features in the input time series. + num_dynamic_real_features (`int`, *optional*, defaults to 0): + The number of dynamic real valued features. + num_static_categorical_features (`int`, *optional*, defaults to 0): + The number of static categorical features. + num_static_real_features (`int`, *optional*, defaults to 0): + The number of static real valued features. + cardinality (`list[int]`, *optional*): + The cardinality (number of different values) for each of the static categorical features. Should be a list + of integers, having the same length as `num_static_categorical_features`. Cannot be `None` if + `num_static_categorical_features` is > 0. + embedding_dimension (`list[int]`, *optional*): + The dimension of the embedding for each of the static categorical features. Should be a list of integers, + having the same length as `num_static_categorical_features`. Cannot be `None` if + `num_static_categorical_features` is > 0. + d_model (`int`, *optional*, defaults to 64): + Dimensionality of the transformer layers. + encoder_layers (`int`, *optional*, defaults to 2): + Number of encoder layers. + decoder_layers (`int`, *optional*, defaults to 2): + Number of decoder layers. + encoder_attention_heads (`int`, *optional*, defaults to 2): + Number of attention heads for each attention layer in the Transformer encoder. + decoder_attention_heads (`int`, *optional*, defaults to 2): + Number of attention heads for each attention layer in the Transformer decoder. + encoder_ffn_dim (`int`, *optional*, defaults to 32): + Dimension of the "intermediate" (often named feed-forward) layer in encoder. + decoder_ffn_dim (`int`, *optional*, defaults to 32): + Dimension of the "intermediate" (often named feed-forward) layer in decoder. + activation_function (`str` or `function`, *optional*, defaults to `"gelu"`): + The non-linear activation function (function or string) in the encoder and decoder. If string, `"gelu"` and + `"relu"` are supported. + dropout (`float`, *optional*, defaults to 0.1): + The dropout probability for all fully connected layers in the encoder, and decoder. + encoder_layerdrop (`float`, *optional*, defaults to 0.1): + The dropout probability for the attention and fully connected layers for each encoder layer. + decoder_layerdrop (`float`, *optional*, defaults to 0.1): + The dropout probability for the attention and fully connected layers for each decoder layer. + attention_dropout (`float`, *optional*, defaults to 0.1): + The dropout probability for the attention probabilities. + activation_dropout (`float`, *optional*, defaults to 0.1): + The dropout probability used between the two layers of the feed-forward networks. + num_parallel_samples (`int`, *optional*, defaults to 100): + The number of samples to generate in parallel for each time step of inference. + init_std (`float`, *optional*, defaults to 0.02): + The standard deviation of the truncated normal weight initialization distribution. + use_cache (`bool`, *optional*, defaults to `True`): + Whether to use the past key/values attentions (if applicable to the model) to speed up decoding. + attention_type (`str`, *optional*, defaults to "prob"): + Attention used in encoder. This can be set to "prob" (Informer's ProbAttention) or "full" (vanilla + transformer's canonical self-attention). + sampling_factor (`int`, *optional*, defaults to 5): + ProbSparse sampling factor (only makes affect when `attention_type`="prob"). It is used to control the + reduced query matrix (Q_reduce) input length. + distil (`bool`, *optional*, defaults to `True`): + Whether to use distilling in encoder. + + Example: + + ```python + >>> from transformers import InformerConfig, InformerModel + + >>> # Initializing an Informer configuration with 12 time steps for prediction + >>> configuration = InformerConfig(prediction_length=12) + + >>> # Randomly initializing a model (with random weights) from the configuration + >>> model = InformerModel(configuration) + + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "informer" + attribute_map = { + "hidden_size": "d_model", + "num_attention_heads": "encoder_attention_heads", + "num_hidden_layers": "encoder_layers", + } + + def __init__( + self, + prediction_length: Optional[int] = None, + context_length: Optional[int] = None, + distribution_output: str = "student_t", + loss: str = "nll", + input_size: int = 1, + lags_sequence: List[int] = None, + scaling: Optional[Union[str, bool]] = "mean", + num_dynamic_real_features: int = 0, + num_static_real_features: int = 0, + num_static_categorical_features: int = 0, + num_time_features: int = 0, + cardinality: Optional[List[int]] = None, + embedding_dimension: Optional[List[int]] = None, + d_model: int = 64, + encoder_ffn_dim: int = 32, + decoder_ffn_dim: int = 32, + encoder_attention_heads: int = 2, + decoder_attention_heads: int = 2, + encoder_layers: int = 2, + decoder_layers: int = 2, + is_encoder_decoder: bool = True, + activation_function: str = "gelu", + dropout: float = 0.05, + encoder_layerdrop: float = 0.1, + decoder_layerdrop: float = 0.1, + attention_dropout: float = 0.1, + activation_dropout: float = 0.1, + num_parallel_samples: int = 100, + init_std: float = 0.02, + use_cache=True, + # Informer arguments + attention_type: str = "prob", + sampling_factor: int = 5, + distil: bool = True, + **kwargs, + ): + # time series specific configuration + self.prediction_length = prediction_length + self.context_length = context_length or prediction_length + self.distribution_output = distribution_output + self.loss = loss + self.input_size = input_size + self.num_time_features = num_time_features + self.lags_sequence = lags_sequence if lags_sequence is not None else [1, 2, 3, 4, 5, 6, 7] + self.scaling = scaling + self.num_dynamic_real_features = num_dynamic_real_features + self.num_static_real_features = num_static_real_features + self.num_static_categorical_features = num_static_categorical_features + + # set cardinality + if cardinality and num_static_categorical_features > 0: + if len(cardinality) != num_static_categorical_features: + raise ValueError( + "The cardinality should be a list of the same length as `num_static_categorical_features`" + ) + self.cardinality = cardinality + else: + self.cardinality = [0] + + # set embedding_dimension + if embedding_dimension and num_static_categorical_features > 0: + if len(embedding_dimension) != num_static_categorical_features: + raise ValueError( + "The embedding dimension should be a list of the same length as `num_static_categorical_features`" + ) + self.embedding_dimension = embedding_dimension + else: + self.embedding_dimension = [min(50, (cat + 1) // 2) for cat in self.cardinality] + + self.num_parallel_samples = num_parallel_samples + + # Transformer architecture configuration + self.feature_size = input_size * len(self.lags_sequence) + self._number_of_features + self.d_model = d_model + self.encoder_attention_heads = encoder_attention_heads + self.decoder_attention_heads = decoder_attention_heads + self.encoder_ffn_dim = encoder_ffn_dim + self.decoder_ffn_dim = decoder_ffn_dim + self.encoder_layers = encoder_layers + self.decoder_layers = decoder_layers + + self.dropout = dropout + self.attention_dropout = attention_dropout + self.activation_dropout = activation_dropout + self.encoder_layerdrop = encoder_layerdrop + self.decoder_layerdrop = decoder_layerdrop + + self.activation_function = activation_function + self.init_std = init_std + + self.use_cache = use_cache + + # Informer + self.attention_type = attention_type + self.sampling_factor = sampling_factor + self.distil = distil + + super().__init__(is_encoder_decoder=is_encoder_decoder, **kwargs) + + @property + def _number_of_features(self) -> int: + return ( + sum(self.embedding_dimension) + + self.num_dynamic_real_features + + self.num_time_features + + self.num_static_real_features + + self.input_size * 2 # the log1p(abs(loc)) and log(scale) features + ) + + +__all__ = ["InformerConfig"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/informer/modeling_informer.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/informer/modeling_informer.py new file mode 100644 index 0000000000000000000000000000000000000000..f5c856dad6c2089b744700b9e0a45113f5cf9405 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/informer/modeling_informer.py @@ -0,0 +1,2046 @@ +# coding=utf-8 +# Copyright 2023 Amazon and The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""PyTorch Informer model.""" + +from typing import List, Optional, Tuple, Union + +import numpy as np +import torch +from torch import nn + +from ...activations import ACT2FN +from ...modeling_attn_mask_utils import _prepare_4d_attention_mask, _prepare_4d_causal_attention_mask +from ...modeling_outputs import ( + BaseModelOutput, + BaseModelOutputWithPastAndCrossAttentions, + SampleTSPredictionOutput, + Seq2SeqTSModelOutput, + Seq2SeqTSPredictionOutput, +) +from ...modeling_utils import PreTrainedModel +from ...time_series_utils import NegativeBinomialOutput, NormalOutput, StudentTOutput +from ...utils import add_start_docstrings, add_start_docstrings_to_model_forward, logging, replace_return_docstrings +from .configuration_informer import InformerConfig + + +logger = logging.get_logger(__name__) + +_CONFIG_FOR_DOC = "InformerConfig" + + +# Copied from transformers.models.time_series_transformer.modeling_time_series_transformer.TimeSeriesFeatureEmbedder with TimeSeries->Informer +class InformerFeatureEmbedder(nn.Module): + """ + Embed a sequence of categorical features. + + Args: + cardinalities (`list[int]`): + List of cardinalities of the categorical features. + embedding_dims (`list[int]`): + List of embedding dimensions of the categorical features. + """ + + def __init__(self, cardinalities: List[int], embedding_dims: List[int]) -> None: + super().__init__() + + self.num_features = len(cardinalities) + self.embedders = nn.ModuleList([nn.Embedding(c, d) for c, d in zip(cardinalities, embedding_dims)]) + + def forward(self, features: torch.Tensor) -> torch.Tensor: + if self.num_features > 1: + # we slice the last dimension, giving an array of length + # self.num_features with shape (N,T) or (N) + cat_feature_slices = torch.chunk(features, self.num_features, dim=-1) + else: + cat_feature_slices = [features] + + return torch.cat( + [ + embed(cat_feature_slice.squeeze(-1)) + for embed, cat_feature_slice in zip(self.embedders, cat_feature_slices) + ], + dim=-1, + ) + + +# Copied from transformers.models.time_series_transformer.modeling_time_series_transformer.TimeSeriesStdScaler with TimeSeriesTransformer->Informer,TimeSeries->Informer +class InformerStdScaler(nn.Module): + """ + Standardize features by calculating the mean and scaling along the first dimension, and then normalizes it by + subtracting from the mean and dividing by the standard deviation. + """ + + def __init__(self, config: InformerConfig): + super().__init__() + self.dim = config.scaling_dim if hasattr(config, "scaling_dim") else 1 + self.keepdim = config.keepdim if hasattr(config, "keepdim") else True + self.minimum_scale = config.minimum_scale if hasattr(config, "minimum_scale") else 1e-5 + + def forward( + self, data: torch.Tensor, observed_indicator: torch.Tensor + ) -> Tuple[torch.Tensor, torch.Tensor, torch.Tensor]: + """ + Parameters: + data (`torch.Tensor` of shape `(batch_size, sequence_length, num_input_channels)`): + input for Batch norm calculation + observed_indicator (`torch.BoolTensor` of shape `(batch_size, sequence_length, num_input_channels)`): + Calculating the scale on the observed indicator. + Returns: + tuple of `torch.Tensor` of shapes + (`(batch_size, sequence_length, num_input_channels)`,`(batch_size, 1, num_input_channels)`, + `(batch_size, 1, num_input_channels)`) + """ + denominator = observed_indicator.sum(self.dim, keepdim=self.keepdim) + denominator = denominator.clamp_min(1.0) + loc = (data * observed_indicator).sum(self.dim, keepdim=self.keepdim) / denominator + + variance = (((data - loc) * observed_indicator) ** 2).sum(self.dim, keepdim=self.keepdim) / denominator + scale = torch.sqrt(variance + self.minimum_scale) + return (data - loc) / scale, loc, scale + + +# Copied from transformers.models.time_series_transformer.modeling_time_series_transformer.TimeSeriesMeanScaler with TimeSeriesTransformer->Informer,TimeSeries->Informer +class InformerMeanScaler(nn.Module): + """ + Computes a scaling factor as the weighted average absolute value along the first dimension, and scales the data + accordingly. + """ + + def __init__(self, config: InformerConfig): + super().__init__() + self.dim = config.scaling_dim if hasattr(config, "scaling_dim") else 1 + self.keepdim = config.keepdim if hasattr(config, "keepdim") else True + self.minimum_scale = config.minimum_scale if hasattr(config, "minimum_scale") else 1e-10 + self.default_scale = config.default_scale if hasattr(config, "default_scale") else None + + def forward( + self, data: torch.Tensor, observed_indicator: torch.Tensor + ) -> Tuple[torch.Tensor, torch.Tensor, torch.Tensor]: + """ + Parameters: + data (`torch.Tensor` of shape `(batch_size, sequence_length, num_input_channels)`): + input for Batch norm calculation + observed_indicator (`torch.BoolTensor` of shape `(batch_size, sequence_length, num_input_channels)`): + Calculating the scale on the observed indicator. + Returns: + tuple of `torch.Tensor` of shapes + (`(batch_size, sequence_length, num_input_channels)`,`(batch_size, 1, num_input_channels)`, + `(batch_size, 1, num_input_channels)`) + """ + ts_sum = (data * observed_indicator).abs().sum(self.dim, keepdim=True) + num_observed = observed_indicator.sum(self.dim, keepdim=True) + + scale = ts_sum / torch.clamp(num_observed, min=1) + + # If `default_scale` is provided, we use it, otherwise we use the scale + # of the batch. + if self.default_scale is None: + batch_sum = ts_sum.sum(dim=0) + batch_observations = torch.clamp(num_observed.sum(0), min=1) + default_scale = torch.squeeze(batch_sum / batch_observations) + else: + default_scale = self.default_scale * torch.ones_like(scale) + + # apply default scale where there are no observations + scale = torch.where(num_observed > 0, scale, default_scale) + + # ensure the scale is at least `self.minimum_scale` + scale = torch.clamp(scale, min=self.minimum_scale) + scaled_data = data / scale + + if not self.keepdim: + scale = scale.squeeze(dim=self.dim) + + return scaled_data, torch.zeros_like(scale), scale + + +# Copied from transformers.models.time_series_transformer.modeling_time_series_transformer.TimeSeriesNOPScaler with TimeSeriesTransformer->Informer,TimeSeries->Informer +class InformerNOPScaler(nn.Module): + """ + Assigns a scaling factor equal to 1 along the first dimension, and therefore applies no scaling to the input data. + """ + + def __init__(self, config: InformerConfig): + super().__init__() + self.dim = config.scaling_dim if hasattr(config, "scaling_dim") else 1 + self.keepdim = config.keepdim if hasattr(config, "keepdim") else True + + def forward( + self, data: torch.Tensor, observed_indicator: torch.Tensor = None + ) -> Tuple[torch.Tensor, torch.Tensor, torch.Tensor]: + """ + Parameters: + data (`torch.Tensor` of shape `(batch_size, sequence_length, num_input_channels)`): + input for Batch norm calculation + Returns: + tuple of `torch.Tensor` of shapes + (`(batch_size, sequence_length, num_input_channels)`,`(batch_size, 1, num_input_channels)`, + `(batch_size, 1, num_input_channels)`) + """ + scale = torch.ones_like(data, requires_grad=False).mean(dim=self.dim, keepdim=self.keepdim) + loc = torch.zeros_like(data, requires_grad=False).mean(dim=self.dim, keepdim=self.keepdim) + return data, loc, scale + + +# Copied from transformers.models.time_series_transformer.modeling_time_series_transformer.weighted_average +def weighted_average(input_tensor: torch.Tensor, weights: Optional[torch.Tensor] = None, dim=None) -> torch.Tensor: + """ + Computes the weighted average of a given tensor across a given `dim`, masking values associated with weight zero, + meaning instead of `nan * 0 = nan` you will get `0 * 0 = 0`. + + Args: + input_tensor (`torch.FloatTensor`): + Input tensor, of which the average must be computed. + weights (`torch.FloatTensor`, *optional*): + Weights tensor, of the same shape as `input_tensor`. + dim (`int`, *optional*): + The dim along which to average `input_tensor`. + + Returns: + `torch.FloatTensor`: The tensor with values averaged along the specified `dim`. + """ + if weights is not None: + weighted_tensor = torch.where(weights != 0, input_tensor * weights, torch.zeros_like(input_tensor)) + sum_weights = torch.clamp(weights.sum(dim=dim) if dim else weights.sum(), min=1.0) + return (weighted_tensor.sum(dim=dim) if dim else weighted_tensor.sum()) / sum_weights + else: + return input_tensor.mean(dim=dim) + + +# Copied from transformers.models.time_series_transformer.modeling_time_series_transformer.nll +def nll(input: torch.distributions.Distribution, target: torch.Tensor) -> torch.Tensor: + """ + Computes the negative log likelihood loss from input distribution with respect to target. + """ + return -input.log_prob(target) + + +# Copied from transformers.models.marian.modeling_marian.MarianSinusoidalPositionalEmbedding with Marian->Informer +class InformerSinusoidalPositionalEmbedding(nn.Embedding): + """This module produces sinusoidal positional embeddings of any length.""" + + def __init__(self, num_positions: int, embedding_dim: int, padding_idx: Optional[int] = None) -> None: + super().__init__(num_positions, embedding_dim) + self.weight = self._init_weight(self.weight) + + @staticmethod + def _init_weight(out: nn.Parameter) -> nn.Parameter: + """ + Identical to the XLM create_sinusoidal_embeddings except features are not interleaved. The cos features are in + the 2nd half of the vector. [dim // 2:] + """ + n_pos, dim = out.shape + position_enc = np.array( + [[pos / np.power(10000, 2 * (j // 2) / dim) for j in range(dim)] for pos in range(n_pos)] + ) + out.requires_grad = False # set early to avoid an error in pytorch-1.8+ + sentinel = dim // 2 if dim % 2 == 0 else (dim // 2) + 1 + out[:, 0:sentinel] = torch.FloatTensor(np.sin(position_enc[:, 0::2])) + out[:, sentinel:] = torch.FloatTensor(np.cos(position_enc[:, 1::2])) + out.detach_() + return out + + @torch.no_grad() + def forward(self, input_ids_shape: torch.Size, past_key_values_length: int = 0) -> torch.Tensor: + """`input_ids_shape` is expected to be [bsz x seqlen].""" + bsz, seq_len = input_ids_shape[:2] + positions = torch.arange( + past_key_values_length, past_key_values_length + seq_len, dtype=torch.long, device=self.weight.device + ) + return super().forward(positions) + + +# Copied from transformers.models.time_series_transformer.modeling_time_series_transformer.TimeSeriesValueEmbedding with TimeSeries->Info +class InformerValueEmbedding(nn.Module): + def __init__(self, feature_size, d_model): + super().__init__() + self.value_projection = nn.Linear(in_features=feature_size, out_features=d_model, bias=False) + + def forward(self, x): + return self.value_projection(x) + + +# Copied from transformers.models.bart.modeling_bart.BartAttention with Bart->Informer +class InformerAttention(nn.Module): + """Multi-headed attention from 'Attention Is All You Need' paper""" + + def __init__( + self, + embed_dim: int, + num_heads: int, + dropout: float = 0.0, + is_decoder: bool = False, + bias: bool = True, + is_causal: bool = False, + config: Optional[InformerConfig] = None, + ): + super().__init__() + self.embed_dim = embed_dim + self.num_heads = num_heads + self.dropout = dropout + self.head_dim = embed_dim // num_heads + self.config = config + + if (self.head_dim * num_heads) != self.embed_dim: + raise ValueError( + f"embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim}" + f" and `num_heads`: {num_heads})." + ) + self.scaling = self.head_dim**-0.5 + self.is_decoder = is_decoder + self.is_causal = is_causal + + self.k_proj = nn.Linear(embed_dim, embed_dim, bias=bias) + self.v_proj = nn.Linear(embed_dim, embed_dim, bias=bias) + self.q_proj = nn.Linear(embed_dim, embed_dim, bias=bias) + self.out_proj = nn.Linear(embed_dim, embed_dim, bias=bias) + + def _shape(self, tensor: torch.Tensor, seq_len: int, bsz: int): + return tensor.view(bsz, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous() + + def forward( + self, + hidden_states: torch.Tensor, + key_value_states: Optional[torch.Tensor] = None, + past_key_value: Optional[Tuple[torch.Tensor]] = None, + attention_mask: Optional[torch.Tensor] = None, + layer_head_mask: Optional[torch.Tensor] = None, + output_attentions: bool = False, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]: + """Input shape: Batch x Time x Channel""" + + # if key_value_states are provided this layer is used as a cross-attention layer + # for the decoder + is_cross_attention = key_value_states is not None + + bsz, tgt_len, _ = hidden_states.size() + + # get query proj + query_states = self.q_proj(hidden_states) * self.scaling + # get key, value proj + # `past_key_value[0].shape[2] == key_value_states.shape[1]` + # is checking that the `sequence_length` of the `past_key_value` is the same as + # the provided `key_value_states` to support prefix tuning + if ( + is_cross_attention + and past_key_value is not None + and past_key_value[0].shape[2] == key_value_states.shape[1] + ): + # reuse k,v, cross_attentions + key_states = past_key_value[0] + value_states = past_key_value[1] + elif is_cross_attention: + # cross_attentions + key_states = self._shape(self.k_proj(key_value_states), -1, bsz) + value_states = self._shape(self.v_proj(key_value_states), -1, bsz) + elif past_key_value is not None: + # reuse k, v, self_attention + key_states = self._shape(self.k_proj(hidden_states), -1, bsz) + value_states = self._shape(self.v_proj(hidden_states), -1, bsz) + key_states = torch.cat([past_key_value[0], key_states], dim=2) + value_states = torch.cat([past_key_value[1], value_states], dim=2) + else: + # self_attention + key_states = self._shape(self.k_proj(hidden_states), -1, bsz) + value_states = self._shape(self.v_proj(hidden_states), -1, bsz) + + if self.is_decoder: + # if cross_attention save Tuple(torch.Tensor, torch.Tensor) of all cross attention key/value_states. + # Further calls to cross_attention layer can then reuse all cross-attention + # key/value_states (first "if" case) + # if uni-directional self-attention (decoder) save Tuple(torch.Tensor, torch.Tensor) of + # all previous decoder key/value_states. Further calls to uni-directional self-attention + # can concat previous decoder key/value_states to current projected key/value_states (third "elif" case) + # if encoder bi-directional self-attention `past_key_value` is always `None` + past_key_value = (key_states, value_states) + + proj_shape = (bsz * self.num_heads, -1, self.head_dim) + query_states = self._shape(query_states, tgt_len, bsz).view(*proj_shape) + key_states = key_states.reshape(*proj_shape) + value_states = value_states.reshape(*proj_shape) + + src_len = key_states.size(1) + attn_weights = torch.bmm(query_states, key_states.transpose(1, 2)) + + if attn_weights.size() != (bsz * self.num_heads, tgt_len, src_len): + raise ValueError( + f"Attention weights should be of size {(bsz * self.num_heads, tgt_len, src_len)}, but is" + f" {attn_weights.size()}" + ) + + if attention_mask is not None: + if attention_mask.size() != (bsz, 1, tgt_len, src_len): + raise ValueError( + f"Attention mask should be of size {(bsz, 1, tgt_len, src_len)}, but is {attention_mask.size()}" + ) + attn_weights = attn_weights.view(bsz, self.num_heads, tgt_len, src_len) + attention_mask + attn_weights = attn_weights.view(bsz * self.num_heads, tgt_len, src_len) + + attn_weights = nn.functional.softmax(attn_weights, dim=-1) + + if layer_head_mask is not None: + if layer_head_mask.size() != (self.num_heads,): + raise ValueError( + f"Head mask for a single layer should be of size {(self.num_heads,)}, but is" + f" {layer_head_mask.size()}" + ) + attn_weights = layer_head_mask.view(1, -1, 1, 1) * attn_weights.view(bsz, self.num_heads, tgt_len, src_len) + attn_weights = attn_weights.view(bsz * self.num_heads, tgt_len, src_len) + + if output_attentions: + # this operation is a bit awkward, but it's required to + # make sure that attn_weights keeps its gradient. + # In order to do so, attn_weights have to be reshaped + # twice and have to be reused in the following + attn_weights_reshaped = attn_weights.view(bsz, self.num_heads, tgt_len, src_len) + attn_weights = attn_weights_reshaped.view(bsz * self.num_heads, tgt_len, src_len) + else: + attn_weights_reshaped = None + + attn_probs = nn.functional.dropout(attn_weights, p=self.dropout, training=self.training) + + attn_output = torch.bmm(attn_probs, value_states) + + if attn_output.size() != (bsz * self.num_heads, tgt_len, self.head_dim): + raise ValueError( + f"`attn_output` should be of size {(bsz * self.num_heads, tgt_len, self.head_dim)}, but is" + f" {attn_output.size()}" + ) + + attn_output = attn_output.view(bsz, self.num_heads, tgt_len, self.head_dim) + attn_output = attn_output.transpose(1, 2) + + # Use the `embed_dim` from the config (stored in the class) rather than `hidden_state` because `attn_output` can be + # partitioned across GPUs when using tensor-parallelism. + attn_output = attn_output.reshape(bsz, tgt_len, self.embed_dim) + + attn_output = self.out_proj(attn_output) + + return attn_output, attn_weights_reshaped, past_key_value + + +class InformerProbSparseAttention(nn.Module): + """Probabilistic Attention mechanism to select the "active" + queries rather than the "lazy" queries and provides a sparse Transformer thus mitigating the quadratic compute and + memory requirements of vanilla attention""" + + def __init__( + self, + embed_dim: int, + num_heads: int, + dropout: float = 0.0, + is_decoder: bool = False, + sampling_factor: int = 5, + bias: bool = True, + ): + super().__init__() + self.factor = sampling_factor + self.embed_dim = embed_dim + self.num_heads = num_heads + self.dropout = dropout + self.head_dim = embed_dim // num_heads + + if (self.head_dim * num_heads) != self.embed_dim: + raise ValueError( + f"embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim}" + f" and `num_heads`: {num_heads})." + ) + self.scaling = self.head_dim**-0.5 + self.is_decoder = is_decoder + + self.k_proj = nn.Linear(embed_dim, embed_dim, bias=bias) + self.v_proj = nn.Linear(embed_dim, embed_dim, bias=bias) + self.q_proj = nn.Linear(embed_dim, embed_dim, bias=bias) + self.out_proj = nn.Linear(embed_dim, embed_dim, bias=bias) + + def _shape(self, tensor: torch.Tensor, seq_len: int, bsz: int): + return tensor.view(bsz, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous() + + def forward( + self, + hidden_states: torch.Tensor, + key_value_states: Optional[torch.Tensor] = None, + past_key_value: Optional[Tuple[torch.Tensor]] = None, + attention_mask: Optional[torch.Tensor] = None, + layer_head_mask: Optional[torch.Tensor] = None, + output_attentions: bool = False, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]: + """Input shape: Batch x Time x Channel""" + + # if key_value_states are provided this layer is used as a cross-attention layer + # for the decoder + is_cross_attention = key_value_states is not None + + bsz, tgt_len, _ = hidden_states.size() + + # get query proj + query_states = self.q_proj(hidden_states) * self.scaling + # get key, value proj + # `past_key_value[0].shape[2] == key_value_states.shape[1]` + # is checking that the `sequence_length` of the `past_key_value` is the same as + # the provided `key_value_states` to support prefix tuning + if ( + is_cross_attention + and past_key_value is not None + and past_key_value[0].shape[2] == key_value_states.shape[1] + ): + # reuse k,v, cross_attentions + key_states = past_key_value[0] + value_states = past_key_value[1] + elif is_cross_attention: + # cross_attentions + key_states = self._shape(self.k_proj(key_value_states), -1, bsz) + value_states = self._shape(self.v_proj(key_value_states), -1, bsz) + elif past_key_value is not None: + # reuse k, v, self_attention + key_states = self._shape(self.k_proj(hidden_states), -1, bsz) + value_states = self._shape(self.v_proj(hidden_states), -1, bsz) + key_states = torch.cat([past_key_value[0], key_states], dim=2) + value_states = torch.cat([past_key_value[1], value_states], dim=2) + else: + # self_attention + key_states = self._shape(self.k_proj(hidden_states), -1, bsz) + value_states = self._shape(self.v_proj(hidden_states), -1, bsz) + + if self.is_decoder: + # if cross_attention save Tuple(torch.Tensor, torch.Tensor) of all cross attention key/value_states. + # Further calls to cross_attention layer can then reuse all cross-attention + # key/value_states (first "if" case) + # if uni-directional self-attention (decoder) save Tuple(torch.Tensor, torch.Tensor) of + # all previous decoder key/value_states. Further calls to uni-directional self-attention + # can concat previous decoder key/value_states to current projected key/value_states (third "elif" case) + # if encoder bi-directional self-attention `past_key_value` is always `None` + past_key_value = (key_states, value_states) + + proj_shape = (bsz * self.num_heads, -1, self.head_dim) + query_states = self._shape(query_states, tgt_len, bsz).view(*proj_shape) + key_states = key_states.reshape(*proj_shape) + value_states = value_states.reshape(*proj_shape) + + key_states_time_length = key_states.size(1) # L_K + log_key_states_time_length = np.ceil(np.log1p(key_states_time_length)).astype("int").item() # log_L_K + + query_states_time_length = query_states.size(1) # L_Q + log_query_states_time_length = np.ceil(np.log1p(query_states_time_length)).astype("int").item() # log_L_Q + + u_part = min(self.factor * query_states_time_length * log_key_states_time_length, key_states_time_length) + u = min(self.factor * log_query_states_time_length, query_states_time_length) + + if key_states_time_length > 0: + index_sample = torch.randint(0, key_states_time_length, (u_part,)) + k_sample = key_states[:, index_sample, :] + else: + k_sample = key_states + + queries_keys_sample = torch.bmm(query_states, k_sample.transpose(1, 2)) # Q_K_sampled + + # find the Top_k query with sparsity measurement + if u > 0: + sparsity_measurement = queries_keys_sample.max(dim=-1)[0] - torch.div( + queries_keys_sample.sum(dim=-1), key_states_time_length + ) # M + top_u_sparsity_measurement = sparsity_measurement.topk(u, sorted=False)[1] # M_top + + # calculate q_reduce: query_states[:, top_u_sparsity_measurement] + dim_for_slice = torch.arange(query_states.size(0)).unsqueeze(-1) + q_reduce = query_states[dim_for_slice, top_u_sparsity_measurement] + else: + q_reduce = query_states + top_u_sparsity_measurement = None + + # Use q_reduce to calculate attention weights + attn_weights = torch.bmm(q_reduce, key_states.transpose(1, 2)) + + src_len = key_states.size(1) + if attn_weights.size() != (bsz * self.num_heads, u, src_len): + raise ValueError( + f"Attention weights should be of size {(bsz * self.num_heads, u, src_len)}, but is" + f" {attn_weights.size()}" + ) + + if attention_mask is not None: + if attention_mask.size() != (bsz, 1, tgt_len, src_len): + raise ValueError( + f"Attention mask should be of size {(bsz, 1, tgt_len, src_len)}, but is {attention_mask.size()}" + ) + prob_mask = attention_mask.expand(bsz, self.num_heads, tgt_len, src_len).reshape( + bsz * self.num_heads, tgt_len, src_len + ) + + if top_u_sparsity_measurement is not None: + dim_for_slice = torch.arange(prob_mask.size(0)).unsqueeze(-1) + prob_mask = prob_mask[dim_for_slice, top_u_sparsity_measurement, :] + + attn_weights = attn_weights.view(bsz, self.num_heads, u, src_len) + prob_mask.view( + bsz, self.num_heads, u, src_len + ) + attn_weights = attn_weights.view(bsz * self.num_heads, u, src_len) + + attn_weights = nn.functional.softmax(attn_weights, dim=-1) + + if layer_head_mask is not None: + if layer_head_mask.size() != (self.num_heads,): + raise ValueError( + f"Head mask for a single layer should be of size {(self.num_heads,)}, but is" + f" {layer_head_mask.size()}" + ) + attn_weights = layer_head_mask.view(1, -1, 1, 1) * attn_weights.view(bsz, self.num_heads, u, src_len) + attn_weights = attn_weights.view(bsz * self.num_heads, u, src_len) + + if output_attentions: + # this operation is a bit awkward, but it's required to + # make sure that attn_weights keeps its gradient. + # In order to do so, attn_weights have to be reshaped + # twice and have to be reused in the following + attn_weights_reshaped = attn_weights.view(bsz, self.num_heads, u, src_len) + attn_weights = attn_weights_reshaped.view(bsz * self.num_heads, u, src_len) + else: + attn_weights_reshaped = None + + attn_probs = nn.functional.dropout(attn_weights, p=self.dropout, training=self.training) + attn_output = torch.bmm(attn_probs, value_states) + + # calculate context for updating the attn_output, based on: + # https://github.com/zhouhaoyi/Informer2020/blob/ac59c7447135473fb2aafeafe94395f884d5c7a5/models/attn.py#L74 + if self.is_decoder: + # cast to float32 before operation to avoid overflow + context = value_states.cumsum(dim=-2, dtype=torch.float32).to(value_states.dtype) + else: + v_mean_dim_time = value_states.mean(dim=-2) + context = ( + v_mean_dim_time.unsqueeze(dim=1) + .expand(bsz * self.num_heads, query_states_time_length, v_mean_dim_time.size(-1)) + .clone() + ) + + if top_u_sparsity_measurement is not None: + # update context: copy the attention output to the context at top_u_sparsity_measurement index + dim_for_slice = torch.arange(context.size(0)).unsqueeze(-1) + context[dim_for_slice, top_u_sparsity_measurement, :] = attn_output + attn_output = context + + if attn_output.size() != (bsz * self.num_heads, tgt_len, self.head_dim): + raise ValueError( + f"`attn_output` should be of size {(bsz * self.num_heads, tgt_len, self.head_dim)}, but is" + f" {attn_output.size()}" + ) + + attn_output = attn_output.view(bsz, self.num_heads, tgt_len, self.head_dim) + attn_output = attn_output.transpose(1, 2) + + # Use the `embed_dim` from the config (stored in the class) rather than `hidden_state` because `attn_output` can be + # partitioned across GPUs when using tensor-parallelism. + attn_output = attn_output.reshape(bsz, tgt_len, self.embed_dim) + + attn_output = self.out_proj(attn_output) + + return attn_output, attn_weights_reshaped, past_key_value + + +# source: https://github.com/zhouhaoyi/Informer2020/blob/main/models/encoder.py +class InformerConvLayer(nn.Module): + def __init__(self, c_in): + super().__init__() + self.downConv = nn.Conv1d( + in_channels=c_in, + out_channels=c_in, + kernel_size=3, + padding=1, + padding_mode="circular", + ) + self.norm = nn.BatchNorm1d(c_in) + self.activation = nn.ELU() + self.maxPool = nn.MaxPool1d(kernel_size=3, stride=2, padding=1) + + def forward(self, x): + x = self.downConv(x.permute(0, 2, 1)) + x = self.norm(x) + x = self.activation(x) + x = self.maxPool(x) + x = x.transpose(1, 2) + return x + + +class InformerEncoderLayer(nn.Module): + def __init__(self, config: InformerConfig): + super().__init__() + self.embed_dim = config.d_model + if config.attention_type == "prob": + self.self_attn = InformerProbSparseAttention( + embed_dim=self.embed_dim, + num_heads=config.encoder_attention_heads, + dropout=config.attention_dropout, + sampling_factor=config.sampling_factor, + ) + else: + self.self_attn = InformerAttention( + embed_dim=self.embed_dim, + num_heads=config.encoder_attention_heads, + dropout=config.attention_dropout, + ) + self.self_attn_layer_norm = nn.LayerNorm(self.embed_dim) + self.dropout = config.dropout + self.activation_fn = ACT2FN[config.activation_function] + self.activation_dropout = config.activation_dropout + self.fc1 = nn.Linear(self.embed_dim, config.encoder_ffn_dim) + self.fc2 = nn.Linear(config.encoder_ffn_dim, self.embed_dim) + self.final_layer_norm = nn.LayerNorm(self.embed_dim) + + def forward( + self, + hidden_states: torch.FloatTensor, + attention_mask: torch.FloatTensor, + layer_head_mask: torch.FloatTensor, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.FloatTensor, Optional[torch.FloatTensor]]: + """ + Args: + hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)` + attention_mask (`torch.FloatTensor`): attention mask of size + `(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values. + layer_head_mask (`torch.FloatTensor`): mask for attention heads in a given layer of size + `(encoder_attention_heads,)`. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + """ + residual = hidden_states + hidden_states, attn_weights, _ = self.self_attn( + hidden_states=hidden_states, + attention_mask=attention_mask, + layer_head_mask=layer_head_mask, + output_attentions=output_attentions, + ) + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + hidden_states = residual + hidden_states + hidden_states = self.self_attn_layer_norm(hidden_states) + + residual = hidden_states + hidden_states = self.activation_fn(self.fc1(hidden_states)) + hidden_states = nn.functional.dropout(hidden_states, p=self.activation_dropout, training=self.training) + hidden_states = self.fc2(hidden_states) + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + hidden_states = residual + hidden_states + hidden_states = self.final_layer_norm(hidden_states) + + if hidden_states.dtype == torch.float16 and ( + torch.isinf(hidden_states).any() or torch.isnan(hidden_states).any() + ): + clamp_value = torch.finfo(hidden_states.dtype).max - 1000 + hidden_states = torch.clamp(hidden_states, min=-clamp_value, max=clamp_value) + + outputs = (hidden_states,) + + if output_attentions: + outputs += (attn_weights,) + + return outputs + + +class InformerDecoderLayer(nn.Module): + def __init__(self, config: InformerConfig): + super().__init__() + self.embed_dim = config.d_model + + if config.attention_type == "prob": + self.self_attn = InformerProbSparseAttention( + embed_dim=self.embed_dim, + num_heads=config.decoder_attention_heads, + dropout=config.attention_dropout, + sampling_factor=config.sampling_factor, + is_decoder=True, + ) + else: + self.self_attn = InformerAttention( + embed_dim=self.embed_dim, + num_heads=config.decoder_attention_heads, + dropout=config.attention_dropout, + is_decoder=True, + ) + self.dropout = config.dropout + self.activation_fn = ACT2FN[config.activation_function] + self.activation_dropout = config.activation_dropout + + self.self_attn_layer_norm = nn.LayerNorm(self.embed_dim) + self.encoder_attn = InformerAttention( + self.embed_dim, + config.decoder_attention_heads, + dropout=config.attention_dropout, + is_decoder=True, + ) + self.encoder_attn_layer_norm = nn.LayerNorm(self.embed_dim) + self.fc1 = nn.Linear(self.embed_dim, config.decoder_ffn_dim) + self.fc2 = nn.Linear(config.decoder_ffn_dim, self.embed_dim) + self.final_layer_norm = nn.LayerNorm(self.embed_dim) + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + encoder_hidden_states: Optional[torch.Tensor] = None, + encoder_attention_mask: Optional[torch.Tensor] = None, + layer_head_mask: Optional[torch.Tensor] = None, + cross_attn_layer_head_mask: Optional[torch.Tensor] = None, + past_key_value: Optional[Tuple[torch.Tensor]] = None, + output_attentions: Optional[bool] = False, + use_cache: Optional[bool] = True, + ) -> Tuple[torch.FloatTensor, Optional[Tuple[torch.FloatTensor, torch.FloatTensor]]]: + """ + Args: + hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)` + attention_mask (`torch.FloatTensor`): attention mask of size + `(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values. + encoder_hidden_states (`torch.FloatTensor`): + cross attention input to the layer of shape `(batch, seq_len, embed_dim)` + encoder_attention_mask (`torch.FloatTensor`): encoder attention mask of size + `(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values. + layer_head_mask (`torch.FloatTensor`): mask for attention heads in a given layer of size + `(encoder_attention_heads,)`. + cross_attn_layer_head_mask (`torch.FloatTensor`): mask for cross-attention heads in a given layer of + size `(decoder_attention_heads,)`. + past_key_value (`Tuple(torch.FloatTensor)`): cached past key and value projection states + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + """ + residual = hidden_states + + # Self Attention + # decoder uni-directional self-attention cached key/values tuple is at positions 1,2 + self_attn_past_key_value = past_key_value[:2] if past_key_value is not None else None + # add present self-attn cache to positions 1,2 of present_key_value tuple + hidden_states, self_attn_weights, present_key_value = self.self_attn( + hidden_states=hidden_states, + past_key_value=self_attn_past_key_value, + attention_mask=attention_mask, + layer_head_mask=layer_head_mask, + output_attentions=output_attentions, + ) + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + hidden_states = residual + hidden_states + hidden_states = self.self_attn_layer_norm(hidden_states) + + # Cross-Attention Block + cross_attn_present_key_value = None + cross_attn_weights = None + if encoder_hidden_states is not None: + residual = hidden_states + + # cross_attn cached key/values tuple is at positions 3,4 of present_key_value tuple + cross_attn_past_key_value = past_key_value[-2:] if past_key_value is not None else None + hidden_states, cross_attn_weights, cross_attn_present_key_value = self.encoder_attn( + hidden_states=hidden_states, + key_value_states=encoder_hidden_states, + attention_mask=encoder_attention_mask, + layer_head_mask=cross_attn_layer_head_mask, + past_key_value=cross_attn_past_key_value, + output_attentions=output_attentions, + ) + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + hidden_states = residual + hidden_states + hidden_states = self.encoder_attn_layer_norm(hidden_states) + + # add cross-attn to positions 3,4 of present_key_value tuple + present_key_value = present_key_value + cross_attn_present_key_value + + # Fully Connected + residual = hidden_states + hidden_states = self.activation_fn(self.fc1(hidden_states)) + hidden_states = nn.functional.dropout(hidden_states, p=self.activation_dropout, training=self.training) + hidden_states = self.fc2(hidden_states) + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + hidden_states = residual + hidden_states + hidden_states = self.final_layer_norm(hidden_states) + + outputs = (hidden_states,) + + if output_attentions: + outputs += (self_attn_weights, cross_attn_weights) + + if use_cache: + outputs += (present_key_value,) + + return outputs + + +class InformerPreTrainedModel(PreTrainedModel): + config_class = InformerConfig + base_model_prefix = "model" + main_input_name = "past_values" + supports_gradient_checkpointing = True + + def _init_weights(self, module): + std = self.config.init_std + if isinstance(module, (nn.Linear, nn.Conv1d)): + module.weight.data.normal_(mean=0.0, std=std) + if module.bias is not None: + module.bias.data.zero_() + elif isinstance(module, nn.Embedding) and not isinstance(module, InformerSinusoidalPositionalEmbedding): + module.weight.data.normal_(mean=0.0, std=std) + if module.padding_idx is not None: + module.weight.data[module.padding_idx].zero_() + + +INFORMER_START_DOCSTRING = r""" + This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the + library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads + etc.) + + This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. + Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage + and behavior. + + Parameters: + config ([`TimeSeriesTransformerConfig`]): + Model configuration class with all the parameters of the model. Initializing with a config file does not + load the weights associated with the model, only the configuration. Check out the + [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + +INFORMER_INPUTS_DOCSTRING = r""" + Args: + past_values (`torch.FloatTensor` of shape `(batch_size, sequence_length)` or `(batch_size, sequence_length, input_size)`): + Past values of the time series, that serve as context in order to predict the future. The sequence size of + this tensor must be larger than the `context_length` of the model, since the model will use the larger size + to construct lag features, i.e. additional values from the past which are added in order to serve as "extra + context". + + The `sequence_length` here is equal to `config.context_length` + `max(config.lags_sequence)`, which if no + `lags_sequence` is configured, is equal to `config.context_length` + 7 (as by default, the largest + look-back index in `config.lags_sequence` is 7). The property `_past_length` returns the actual length of + the past. + + The `past_values` is what the Transformer encoder gets as input (with optional additional features, such as + `static_categorical_features`, `static_real_features`, `past_time_features` and lags). + + Optionally, missing values need to be replaced with zeros and indicated via the `past_observed_mask`. + + For multivariate time series, the `input_size` > 1 dimension is required and corresponds to the number of + variates in the time series per time step. + past_time_features (`torch.FloatTensor` of shape `(batch_size, sequence_length, num_features)`): + Required time features, which the model internally will add to `past_values`. These could be things like + "month of year", "day of the month", etc. encoded as vectors (for instance as Fourier features). These + could also be so-called "age" features, which basically help the model know "at which point in life" a + time-series is. Age features have small values for distant past time steps and increase monotonically the + more we approach the current time step. Holiday features are also a good example of time features. + + These features serve as the "positional encodings" of the inputs. So contrary to a model like BERT, where + the position encodings are learned from scratch internally as parameters of the model, the Time Series + Transformer requires to provide additional time features. The Time Series Transformer only learns + additional embeddings for `static_categorical_features`. + + Additional dynamic real covariates can be concatenated to this tensor, with the caveat that these features + must but known at prediction time. + + The `num_features` here is equal to `config.`num_time_features` + `config.num_dynamic_real_features`. + past_observed_mask (`torch.BoolTensor` of shape `(batch_size, sequence_length)` or `(batch_size, sequence_length, input_size)`, *optional*): + Boolean mask to indicate which `past_values` were observed and which were missing. Mask values selected in + `[0, 1]`: + + - 1 for values that are **observed**, + - 0 for values that are **missing** (i.e. NaNs that were replaced by zeros). + + static_categorical_features (`torch.LongTensor` of shape `(batch_size, number of static categorical features)`, *optional*): + Optional static categorical features for which the model will learn an embedding, which it will add to the + values of the time series. + + Static categorical features are features which have the same value for all time steps (static over time). + + A typical example of a static categorical feature is a time series ID. + static_real_features (`torch.FloatTensor` of shape `(batch_size, number of static real features)`, *optional*): + Optional static real features which the model will add to the values of the time series. + + Static real features are features which have the same value for all time steps (static over time). + + A typical example of a static real feature is promotion information. + future_values (`torch.FloatTensor` of shape `(batch_size, prediction_length)` or `(batch_size, prediction_length, input_size)`, *optional*): + Future values of the time series, that serve as labels for the model. The `future_values` is what the + Transformer needs during training to learn to output, given the `past_values`. + + The sequence length here is equal to `prediction_length`. + + See the demo notebook and code snippets for details. + + Optionally, during training any missing values need to be replaced with zeros and indicated via the + `future_observed_mask`. + + For multivariate time series, the `input_size` > 1 dimension is required and corresponds to the number of + variates in the time series per time step. + future_time_features (`torch.FloatTensor` of shape `(batch_size, prediction_length, num_features)`): + Required time features for the prediction window, which the model internally will add to `future_values`. + These could be things like "month of year", "day of the month", etc. encoded as vectors (for instance as + Fourier features). These could also be so-called "age" features, which basically help the model know "at + which point in life" a time-series is. Age features have small values for distant past time steps and + increase monotonically the more we approach the current time step. Holiday features are also a good example + of time features. + + These features serve as the "positional encodings" of the inputs. So contrary to a model like BERT, where + the position encodings are learned from scratch internally as parameters of the model, the Time Series + Transformer requires to provide additional time features. The Time Series Transformer only learns + additional embeddings for `static_categorical_features`. + + Additional dynamic real covariates can be concatenated to this tensor, with the caveat that these features + must but known at prediction time. + + The `num_features` here is equal to `config.`num_time_features` + `config.num_dynamic_real_features`. + future_observed_mask (`torch.BoolTensor` of shape `(batch_size, sequence_length)` or `(batch_size, sequence_length, input_size)`, *optional*): + Boolean mask to indicate which `future_values` were observed and which were missing. Mask values selected + in `[0, 1]`: + + - 1 for values that are **observed**, + - 0 for values that are **missing** (i.e. NaNs that were replaced by zeros). + + This mask is used to filter out missing values for the final loss calculation. + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on certain token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + decoder_attention_mask (`torch.LongTensor` of shape `(batch_size, target_sequence_length)`, *optional*): + Mask to avoid performing attention on certain token indices. By default, a causal mask will be used, to + make sure the model can only look at previous inputs in order to predict the future. + head_mask (`torch.Tensor` of shape `(encoder_layers, encoder_attention_heads)`, *optional*): + Mask to nullify selected heads of the attention modules in the encoder. Mask values selected in `[0, 1]`: + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + + decoder_head_mask (`torch.Tensor` of shape `(decoder_layers, decoder_attention_heads)`, *optional*): + Mask to nullify selected heads of the attention modules in the decoder. Mask values selected in `[0, 1]`: + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + + cross_attn_head_mask (`torch.Tensor` of shape `(decoder_layers, decoder_attention_heads)`, *optional*): + Mask to nullify selected heads of the cross-attention modules. Mask values selected in `[0, 1]`: + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + + encoder_outputs (`tuple(tuple(torch.FloatTensor)`, *optional*): + Tuple consists of `last_hidden_state`, `hidden_states` (*optional*) and `attentions` (*optional*) + `last_hidden_state` of shape `(batch_size, sequence_length, hidden_size)` (*optional*) is a sequence of + hidden-states at the output of the last layer of the encoder. Used in the cross-attention of the decoder. + past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape + `(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of shape + `(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)`. + + Contains pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention + blocks) that can be used (see `past_key_values` input) to speed up sequential decoding. + + If `past_key_values` are used, the user can optionally input only the last `decoder_input_ids` (those that + don't have their past key value states given to this model) of shape `(batch_size, 1)` instead of all + `decoder_input_ids` of shape `(batch_size, sequence_length)`. + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This + is useful if you want more control over how to convert `input_ids` indices into associated vectors than the + model's internal embedding lookup matrix. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. +""" + + +class InformerEncoder(InformerPreTrainedModel): + """ + Informer encoder consisting of *config.encoder_layers* self attention layers with distillation layers. Each + attention layer is an [`InformerEncoderLayer`]. + + Args: + config: InformerConfig + """ + + def __init__(self, config: InformerConfig): + super().__init__(config) + + self.dropout = config.dropout + self.layerdrop = config.encoder_layerdrop + self.gradient_checkpointing = False + if config.prediction_length is None: + raise ValueError("The `prediction_length` config needs to be specified.") + + self.value_embedding = InformerValueEmbedding(feature_size=config.feature_size, d_model=config.d_model) + self.embed_positions = InformerSinusoidalPositionalEmbedding( + config.context_length + config.prediction_length, config.d_model + ) + self.layers = nn.ModuleList([InformerEncoderLayer(config) for _ in range(config.encoder_layers)]) + self.layernorm_embedding = nn.LayerNorm(config.d_model) + + if config.distil: + self.conv_layers = nn.ModuleList( + [InformerConvLayer(config.d_model) for _ in range(config.encoder_layers - 1)] + ) + self.conv_layers.append(None) + else: + self.conv_layers = [None] * config.encoder_layers + + # Initialize weights and apply final processing + self.post_init() + + def forward( + self, + attention_mask: Optional[torch.Tensor] = None, + head_mask: Optional[torch.Tensor] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, BaseModelOutput]: + r""" + Args: + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + head_mask (`torch.Tensor` of shape `(encoder_layers, encoder_attention_heads)`, *optional*): + Mask to nullify selected heads of the attention modules. Mask values selected in `[0, 1]`: + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. + This is useful if you want more control over how to convert `input_ids` indices into associated vectors + than the model's internal embedding lookup matrix. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors + for more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + hidden_states = self.value_embedding(inputs_embeds) + embed_pos = self.embed_positions(inputs_embeds.size()) + + hidden_states = self.layernorm_embedding(hidden_states + embed_pos) + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + + # expand attention_mask + if attention_mask is not None: + # [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len] + attention_mask = _prepare_4d_attention_mask(attention_mask, inputs_embeds.dtype) + + encoder_states = () if output_hidden_states else None + all_attentions = () if output_attentions else None + + # check if head_mask has a correct number of layers specified if desired + if head_mask is not None: + if head_mask.size()[0] != (len(self.layers)): + raise ValueError( + f"The head_mask should be specified for {len(self.layers)} layers, but it is for" + f" {head_mask.size()[0]}." + ) + + for idx, (encoder_layer, conv_layer) in enumerate(zip(self.layers, self.conv_layers)): + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + # add LayerDrop (see https://arxiv.org/abs/1909.11556 for description) + to_drop = False + if self.training: + dropout_probability = torch.rand([]) + if dropout_probability < self.layerdrop: # skip the layer + to_drop = True + + if to_drop: + layer_outputs = (None, None) + else: + if self.gradient_checkpointing and self.training: + layer_outputs = self._gradient_checkpointing_func( + encoder_layer.__call__, + hidden_states, + attention_mask, + (head_mask[idx] if head_mask is not None else None), + output_attentions, + ) + if conv_layer is not None: + output = self._gradient_checkpointing_func(conv_layer, layer_outputs[0]) + layer_outputs = (output,) + layer_outputs[1:] + else: + layer_outputs = encoder_layer( + hidden_states, + attention_mask, + layer_head_mask=(head_mask[idx] if head_mask is not None else None), + output_attentions=output_attentions, + ) + if conv_layer is not None: + output = conv_layer(layer_outputs[0]) + layer_outputs = (output,) + layer_outputs[1:] + + hidden_states = layer_outputs[0] + + if output_attentions: + all_attentions = all_attentions + (layer_outputs[1],) + + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + + if not return_dict: + return tuple(v for v in [hidden_states, encoder_states, all_attentions] if v is not None) + return BaseModelOutput( + last_hidden_state=hidden_states, hidden_states=encoder_states, attentions=all_attentions + ) + + +# Copied from transformers.models.time_series_transformer.modeling_time_series_transformer.TimeSeriesTransformerDecoder with TimeSeriesTransformer->Informer,TimeSeriesTransformerConfig->InformerConfig,time-series-transformer->informer,Transformer->Informer,TimeSeries->Informer +class InformerDecoder(InformerPreTrainedModel): + """ + Informer decoder consisting of *config.decoder_layers* layers. Each layer is a + [`InformerDecoderLayer`] + + Args: + config: InformerConfig + """ + + def __init__(self, config: InformerConfig): + super().__init__(config) + self.dropout = config.dropout + self.layerdrop = config.decoder_layerdrop + if config.prediction_length is None: + raise ValueError("The `prediction_length` config needs to be specified.") + + self.value_embedding = InformerValueEmbedding(feature_size=config.feature_size, d_model=config.d_model) + self.embed_positions = InformerSinusoidalPositionalEmbedding( + config.context_length + config.prediction_length, config.d_model + ) + self.layers = nn.ModuleList([InformerDecoderLayer(config) for _ in range(config.decoder_layers)]) + self.layernorm_embedding = nn.LayerNorm(config.d_model) + + self.gradient_checkpointing = False + # Initialize weights and apply final processing + self.post_init() + + def forward( + self, + attention_mask: Optional[torch.Tensor] = None, + encoder_hidden_states: Optional[torch.FloatTensor] = None, + encoder_attention_mask: Optional[torch.LongTensor] = None, + head_mask: Optional[torch.Tensor] = None, + cross_attn_head_mask: Optional[torch.Tensor] = None, + past_key_values: Optional[List[torch.FloatTensor]] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, BaseModelOutputWithPastAndCrossAttentions]: + r""" + Args: + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + encoder_hidden_states (`torch.FloatTensor` of shape `(batch_size, encoder_sequence_length, hidden_size)`, *optional*): + Sequence of hidden-states at the output of the last layer of the encoder. Used in the cross-attention + of the decoder. + encoder_attention_mask (`torch.LongTensor` of shape `(batch_size, encoder_sequence_length)`, *optional*): + Mask to avoid performing cross-attention on padding tokens indices of encoder input_ids. Mask values + selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + head_mask (`torch.Tensor` of shape `(decoder_layers, decoder_attention_heads)`, *optional*): + Mask to nullify selected heads of the attention modules. Mask values selected in `[0, 1]`: + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + + cross_attn_head_mask (`torch.Tensor` of shape `(decoder_layers, decoder_attention_heads)`, *optional*): + Mask to nullify selected heads of the cross-attention modules in the decoder to avoid performing + cross-attention on hidden heads. Mask values selected in `[0, 1]`: + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + + past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of + shape `(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of + shape `(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)`. + + Contains pre-computed hidden-states (key and values in the self-attention blocks and in the + cross-attention blocks) that can be used (see `past_key_values` input) to speed up sequential decoding. + + If `past_key_values` are used, the user can optionally input only the last `decoder_input_ids` (those + that don't have their past key value states given to this model) of shape `(batch_size, 1)` instead of + all `decoder_input_ids` of shape `(batch_size, sequence_length)`. + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. + This is useful if you want more control over how to convert `input_ids` indices into associated vectors + than the model's internal embedding lookup matrix. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors + for more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + use_cache = use_cache if use_cache is not None else self.config.use_cache + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + input_shape = inputs_embeds.size()[:-1] + + # past_key_values_length + past_key_values_length = past_key_values[0][0].shape[2] if past_key_values is not None else 0 + + attention_mask = _prepare_4d_causal_attention_mask( + attention_mask, input_shape, inputs_embeds, past_key_values_length + ) + + # expand encoder attention mask + if encoder_hidden_states is not None and encoder_attention_mask is not None: + # [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len] + encoder_attention_mask = _prepare_4d_attention_mask( + encoder_attention_mask, inputs_embeds.dtype, tgt_len=input_shape[-1] + ) + + hidden_states = self.value_embedding(inputs_embeds) + embed_pos = self.embed_positions(inputs_embeds.size(), past_key_values_length=self.config.context_length) + hidden_states = self.layernorm_embedding(hidden_states + embed_pos) + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + + if self.gradient_checkpointing and self.training: + if use_cache: + logger.warning_once( + "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..." + ) + use_cache = False + + # decoder layers + all_hidden_states = () if output_hidden_states else None + all_self_attns = () if output_attentions else None + all_cross_attentions = () if (output_attentions and encoder_hidden_states is not None) else None + next_decoder_cache = () if use_cache else None + + # check if head_mask/cross_attn_head_mask has a correct number of layers specified if desired + for attn_mask, mask_name in zip([head_mask, cross_attn_head_mask], ["head_mask", "cross_attn_head_mask"]): + if attn_mask is not None: + if attn_mask.size()[0] != (len(self.layers)): + raise ValueError( + f"The `{mask_name}` should be specified for {len(self.layers)} layers, but it is for" + f" {head_mask.size()[0]}." + ) + + for idx, decoder_layer in enumerate(self.layers): + # add LayerDrop (see https://arxiv.org/abs/1909.11556 for description) + if output_hidden_states: + all_hidden_states += (hidden_states,) + if self.training: + dropout_probability = torch.rand([]) + if dropout_probability < self.layerdrop: + continue + + past_key_value = past_key_values[idx] if past_key_values is not None else None + + if self.gradient_checkpointing and self.training: + layer_outputs = self._gradient_checkpointing_func( + decoder_layer.__call__, + hidden_states, + attention_mask, + encoder_hidden_states, + encoder_attention_mask, + head_mask[idx] if head_mask is not None else None, + cross_attn_head_mask[idx] if cross_attn_head_mask is not None else None, + None, + output_attentions, + use_cache, + ) + else: + layer_outputs = decoder_layer( + hidden_states, + attention_mask=attention_mask, + encoder_hidden_states=encoder_hidden_states, + encoder_attention_mask=encoder_attention_mask, + layer_head_mask=(head_mask[idx] if head_mask is not None else None), + cross_attn_layer_head_mask=( + cross_attn_head_mask[idx] if cross_attn_head_mask is not None else None + ), + past_key_value=past_key_value, + output_attentions=output_attentions, + use_cache=use_cache, + ) + hidden_states = layer_outputs[0] + + if use_cache: + next_decoder_cache += (layer_outputs[3 if output_attentions else 1],) + + if output_attentions: + all_self_attns += (layer_outputs[1],) + + if encoder_hidden_states is not None: + all_cross_attentions += (layer_outputs[2],) + + # add hidden states from the last decoder layer + if output_hidden_states: + all_hidden_states += (hidden_states,) + + next_cache = next_decoder_cache if use_cache else None + if not return_dict: + return tuple( + v + for v in [hidden_states, next_cache, all_hidden_states, all_self_attns, all_cross_attentions] + if v is not None + ) + return BaseModelOutputWithPastAndCrossAttentions( + last_hidden_state=hidden_states, + past_key_values=next_cache, + hidden_states=all_hidden_states, + attentions=all_self_attns, + cross_attentions=all_cross_attentions, + ) + + +@add_start_docstrings( + "The bare Informer Model outputting raw hidden-states without any specific head on top.", + INFORMER_START_DOCSTRING, +) +# Copied from transformers.models.time_series_transformer.modeling_time_series_transformer.TimeSeriesTransformerModel with TimeSeriesTransformer->Informer,TIME_SERIES_TRANSFORMER->INFORMER,time-series-transformer->informer,TimeSeries->Informer +class InformerModel(InformerPreTrainedModel): + def __init__(self, config: InformerConfig): + super().__init__(config) + + if config.scaling == "mean" or config.scaling is True: + self.scaler = InformerMeanScaler(config) + elif config.scaling == "std": + self.scaler = InformerStdScaler(config) + else: + self.scaler = InformerNOPScaler(config) + + if config.num_static_categorical_features > 0: + self.embedder = InformerFeatureEmbedder( + cardinalities=config.cardinality, + embedding_dims=config.embedding_dimension, + ) + + # transformer encoder-decoder and mask initializer + self.encoder = InformerEncoder(config) + self.decoder = InformerDecoder(config) + + # Initialize weights and apply final processing + self.post_init() + + @property + def _past_length(self) -> int: + return self.config.context_length + max(self.config.lags_sequence) + + def get_lagged_subsequences( + self, sequence: torch.Tensor, subsequences_length: int, shift: int = 0 + ) -> torch.Tensor: + """ + Returns lagged subsequences of a given sequence. Returns a tensor of shape (N, S, C, I), + where S = subsequences_length and I = len(indices), containing lagged subsequences. Specifically, lagged[i, + j, :, k] = sequence[i, -indices[k]-S+j, :]. + + Args: + sequence: Tensor + The sequence from which lagged subsequences should be extracted. Shape: (N, T, C). + subsequences_length : int + Length of the subsequences to be extracted. + shift: int + Shift the lags by this amount back. + """ + sequence_length = sequence.shape[1] + indices = [lag - shift for lag in self.config.lags_sequence] + + if max(indices) + subsequences_length > sequence_length: + raise ValueError( + f"lags cannot go further than history length, found lag {max(indices)} " + f"while history length is only {sequence_length}" + ) + + lagged_values = [] + for lag_index in indices: + begin_index = -lag_index - subsequences_length + end_index = -lag_index if lag_index > 0 else None + lagged_values.append(sequence[:, begin_index:end_index, ...]) + return torch.stack(lagged_values, dim=-1) + + def create_network_inputs( + self, + past_values: torch.Tensor, + past_time_features: torch.Tensor, + static_categorical_features: Optional[torch.Tensor] = None, + static_real_features: Optional[torch.Tensor] = None, + past_observed_mask: Optional[torch.Tensor] = None, + future_values: Optional[torch.Tensor] = None, + future_time_features: Optional[torch.Tensor] = None, + ): + # time feature + time_feat = ( + torch.cat( + ( + past_time_features[:, self._past_length - self.config.context_length :, ...], + future_time_features, + ), + dim=1, + ) + if future_values is not None + else past_time_features[:, self._past_length - self.config.context_length :, ...] + ) + + # target + if past_observed_mask is None: + past_observed_mask = torch.ones_like(past_values) + + context = past_values[:, -self.config.context_length :] + observed_context = past_observed_mask[:, -self.config.context_length :] + _, loc, scale = self.scaler(context, observed_context) + + inputs = ( + (torch.cat((past_values, future_values), dim=1) - loc) / scale + if future_values is not None + else (past_values - loc) / scale + ) + + # static features + log_abs_loc = loc.abs().log1p() if self.config.input_size == 1 else loc.squeeze(1).abs().log1p() + log_scale = scale.log() if self.config.input_size == 1 else scale.squeeze(1).log() + static_feat = torch.cat((log_abs_loc, log_scale), dim=1) + + if static_real_features is not None: + static_feat = torch.cat((static_real_features, static_feat), dim=1) + if static_categorical_features is not None: + embedded_cat = self.embedder(static_categorical_features) + static_feat = torch.cat((embedded_cat, static_feat), dim=1) + expanded_static_feat = static_feat.unsqueeze(1).expand(-1, time_feat.shape[1], -1) + + # all features + features = torch.cat((expanded_static_feat, time_feat), dim=-1) + + # lagged features + subsequences_length = ( + self.config.context_length + self.config.prediction_length + if future_values is not None + else self.config.context_length + ) + lagged_sequence = self.get_lagged_subsequences(sequence=inputs, subsequences_length=subsequences_length) + lags_shape = lagged_sequence.shape + reshaped_lagged_sequence = lagged_sequence.reshape(lags_shape[0], lags_shape[1], -1) + + if reshaped_lagged_sequence.shape[1] != time_feat.shape[1]: + raise ValueError( + f"input length {reshaped_lagged_sequence.shape[1]} and time feature lengths {time_feat.shape[1]} does not match" + ) + + # transformer inputs + transformer_inputs = torch.cat((reshaped_lagged_sequence, features), dim=-1) + + return transformer_inputs, loc, scale, static_feat + + def get_encoder(self): + return self.encoder + + def get_decoder(self): + return self.decoder + + @add_start_docstrings_to_model_forward(INFORMER_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=Seq2SeqTSModelOutput, config_class=_CONFIG_FOR_DOC) + def forward( + self, + past_values: torch.Tensor, + past_time_features: torch.Tensor, + past_observed_mask: torch.Tensor, + static_categorical_features: Optional[torch.Tensor] = None, + static_real_features: Optional[torch.Tensor] = None, + future_values: Optional[torch.Tensor] = None, + future_time_features: Optional[torch.Tensor] = None, + decoder_attention_mask: Optional[torch.LongTensor] = None, + head_mask: Optional[torch.Tensor] = None, + decoder_head_mask: Optional[torch.Tensor] = None, + cross_attn_head_mask: Optional[torch.Tensor] = None, + encoder_outputs: Optional[List[torch.FloatTensor]] = None, + past_key_values: Optional[List[torch.FloatTensor]] = None, + output_hidden_states: Optional[bool] = None, + output_attentions: Optional[bool] = None, + use_cache: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Seq2SeqTSModelOutput, Tuple]: + r""" + Returns: + + Examples: + + ```python + >>> from huggingface_hub import hf_hub_download + >>> import torch + >>> from transformers import InformerModel + + >>> file = hf_hub_download( + ... repo_id="hf-internal-testing/tourism-monthly-batch", filename="train-batch.pt", repo_type="dataset" + ... ) + >>> batch = torch.load(file) + + >>> model = InformerModel.from_pretrained("huggingface/informer-tourism-monthly") + + >>> # during training, one provides both past and future values + >>> # as well as possible additional features + >>> outputs = model( + ... past_values=batch["past_values"], + ... past_time_features=batch["past_time_features"], + ... past_observed_mask=batch["past_observed_mask"], + ... static_categorical_features=batch["static_categorical_features"], + ... static_real_features=batch["static_real_features"], + ... future_values=batch["future_values"], + ... future_time_features=batch["future_time_features"], + ... ) + + >>> last_hidden_state = outputs.last_hidden_state + ```""" + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + use_cache = use_cache if use_cache is not None else self.config.use_cache + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + transformer_inputs, loc, scale, static_feat = self.create_network_inputs( + past_values=past_values, + past_time_features=past_time_features, + past_observed_mask=past_observed_mask, + static_categorical_features=static_categorical_features, + static_real_features=static_real_features, + future_values=future_values, + future_time_features=future_time_features, + ) + + if encoder_outputs is None: + enc_input = transformer_inputs[:, : self.config.context_length, ...] + encoder_outputs = self.encoder( + inputs_embeds=enc_input, + head_mask=head_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + # If the user passed a tuple for encoder_outputs, we wrap it in a BaseModelOutput when return_dict=True + elif return_dict and not isinstance(encoder_outputs, BaseModelOutput): + encoder_outputs = BaseModelOutput( + last_hidden_state=encoder_outputs[0], + hidden_states=encoder_outputs[1] if len(encoder_outputs) > 1 else None, + attentions=encoder_outputs[2] if len(encoder_outputs) > 2 else None, + ) + + dec_input = transformer_inputs[:, self.config.context_length :, ...] + decoder_outputs = self.decoder( + inputs_embeds=dec_input, + attention_mask=decoder_attention_mask, + encoder_hidden_states=encoder_outputs[0], + head_mask=decoder_head_mask, + cross_attn_head_mask=cross_attn_head_mask, + past_key_values=past_key_values, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + + if not return_dict: + return decoder_outputs + encoder_outputs + (loc, scale, static_feat) + + return Seq2SeqTSModelOutput( + last_hidden_state=decoder_outputs.last_hidden_state, + past_key_values=decoder_outputs.past_key_values, + decoder_hidden_states=decoder_outputs.hidden_states, + decoder_attentions=decoder_outputs.attentions, + cross_attentions=decoder_outputs.cross_attentions, + encoder_last_hidden_state=encoder_outputs.last_hidden_state, + encoder_hidden_states=encoder_outputs.hidden_states, + encoder_attentions=encoder_outputs.attentions, + loc=loc, + scale=scale, + static_features=static_feat, + ) + + +@add_start_docstrings( + "The Informer Model with a distribution head on top for time-series forecasting.", + INFORMER_START_DOCSTRING, +) +# Copied from transformers.models.time_series_transformer.modeling_time_series_transformer.TimeSeriesTransformerForPrediction with TimeSeriesTransformer->Informer,TIME_SERIES_TRANSFORMER->INFORMER,time-series-transformer->informer +class InformerForPrediction(InformerPreTrainedModel): + def __init__(self, config: InformerConfig): + super().__init__(config) + self.model = InformerModel(config) + if config.distribution_output == "student_t": + self.distribution_output = StudentTOutput(dim=config.input_size) + elif config.distribution_output == "normal": + self.distribution_output = NormalOutput(dim=config.input_size) + elif config.distribution_output == "negative_binomial": + self.distribution_output = NegativeBinomialOutput(dim=config.input_size) + else: + raise ValueError(f"Unknown distribution output {config.distribution_output}") + + self.parameter_projection = self.distribution_output.get_parameter_projection(self.model.config.d_model) + self.target_shape = self.distribution_output.event_shape + + if config.loss == "nll": + self.loss = nll + else: + raise ValueError(f"Unknown loss function {config.loss}") + + # Initialize weights of distribution_output and apply final processing + self.post_init() + + def output_params(self, dec_output): + return self.parameter_projection(dec_output) + + def get_encoder(self): + return self.model.get_encoder() + + def get_decoder(self): + return self.model.get_decoder() + + @torch.jit.ignore + def output_distribution(self, params, loc=None, scale=None, trailing_n=None) -> torch.distributions.Distribution: + sliced_params = params + if trailing_n is not None: + sliced_params = [p[:, -trailing_n:] for p in params] + return self.distribution_output.distribution(sliced_params, loc=loc, scale=scale) + + @add_start_docstrings_to_model_forward(INFORMER_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=Seq2SeqTSModelOutput, config_class=_CONFIG_FOR_DOC) + def forward( + self, + past_values: torch.Tensor, + past_time_features: torch.Tensor, + past_observed_mask: torch.Tensor, + static_categorical_features: Optional[torch.Tensor] = None, + static_real_features: Optional[torch.Tensor] = None, + future_values: Optional[torch.Tensor] = None, + future_time_features: Optional[torch.Tensor] = None, + future_observed_mask: Optional[torch.Tensor] = None, + decoder_attention_mask: Optional[torch.LongTensor] = None, + head_mask: Optional[torch.Tensor] = None, + decoder_head_mask: Optional[torch.Tensor] = None, + cross_attn_head_mask: Optional[torch.Tensor] = None, + encoder_outputs: Optional[List[torch.FloatTensor]] = None, + past_key_values: Optional[List[torch.FloatTensor]] = None, + output_hidden_states: Optional[bool] = None, + output_attentions: Optional[bool] = None, + use_cache: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Seq2SeqTSModelOutput, Tuple]: + r""" + Returns: + + Examples: + + ```python + >>> from huggingface_hub import hf_hub_download + >>> import torch + >>> from transformers import InformerForPrediction + + >>> file = hf_hub_download( + ... repo_id="hf-internal-testing/tourism-monthly-batch", filename="train-batch.pt", repo_type="dataset" + ... ) + >>> batch = torch.load(file) + + >>> model = InformerForPrediction.from_pretrained( + ... "huggingface/informer-tourism-monthly" + ... ) + + >>> # during training, one provides both past and future values + >>> # as well as possible additional features + >>> outputs = model( + ... past_values=batch["past_values"], + ... past_time_features=batch["past_time_features"], + ... past_observed_mask=batch["past_observed_mask"], + ... static_categorical_features=batch["static_categorical_features"], + ... static_real_features=batch["static_real_features"], + ... future_values=batch["future_values"], + ... future_time_features=batch["future_time_features"], + ... ) + + >>> loss = outputs.loss + >>> loss.backward() + + >>> # during inference, one only provides past values + >>> # as well as possible additional features + >>> # the model autoregressively generates future values + >>> outputs = model.generate( + ... past_values=batch["past_values"], + ... past_time_features=batch["past_time_features"], + ... past_observed_mask=batch["past_observed_mask"], + ... static_categorical_features=batch["static_categorical_features"], + ... static_real_features=batch["static_real_features"], + ... future_time_features=batch["future_time_features"], + ... ) + + >>> mean_prediction = outputs.sequences.mean(dim=1) + ```""" + + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + if future_values is not None: + use_cache = False + + outputs = self.model( + past_values=past_values, + past_time_features=past_time_features, + past_observed_mask=past_observed_mask, + static_categorical_features=static_categorical_features, + static_real_features=static_real_features, + future_values=future_values, + future_time_features=future_time_features, + decoder_attention_mask=decoder_attention_mask, + head_mask=head_mask, + decoder_head_mask=decoder_head_mask, + cross_attn_head_mask=cross_attn_head_mask, + encoder_outputs=encoder_outputs, + past_key_values=past_key_values, + output_hidden_states=output_hidden_states, + output_attentions=output_attentions, + use_cache=use_cache, + return_dict=return_dict, + ) + + prediction_loss = None + params = None + if future_values is not None: + params = self.output_params(outputs[0]) # outputs.last_hidden_state + # loc is 3rd last and scale is 2nd last output + distribution = self.output_distribution(params, loc=outputs[-3], scale=outputs[-2]) + + loss = self.loss(distribution, future_values) + + if future_observed_mask is None: + future_observed_mask = torch.ones_like(future_values) + + if len(self.target_shape) == 0: + loss_weights = future_observed_mask + else: + loss_weights, _ = future_observed_mask.min(dim=-1, keepdim=False) + + prediction_loss = weighted_average(loss, weights=loss_weights) + + if not return_dict: + outputs = ((params,) + outputs[1:]) if params is not None else outputs[1:] + return ((prediction_loss,) + outputs) if prediction_loss is not None else outputs + + return Seq2SeqTSPredictionOutput( + loss=prediction_loss, + params=params, + past_key_values=outputs.past_key_values, + decoder_hidden_states=outputs.decoder_hidden_states, + decoder_attentions=outputs.decoder_attentions, + cross_attentions=outputs.cross_attentions, + encoder_last_hidden_state=outputs.encoder_last_hidden_state, + encoder_hidden_states=outputs.encoder_hidden_states, + encoder_attentions=outputs.encoder_attentions, + loc=outputs.loc, + scale=outputs.scale, + static_features=outputs.static_features, + ) + + @torch.no_grad() + def generate( + self, + past_values: torch.Tensor, + past_time_features: torch.Tensor, + future_time_features: torch.Tensor, + past_observed_mask: Optional[torch.Tensor] = None, + static_categorical_features: Optional[torch.Tensor] = None, + static_real_features: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + ) -> SampleTSPredictionOutput: + r""" + Greedily generate sequences of sample predictions from a model with a probability distribution head. + + Parameters: + past_values (`torch.FloatTensor` of shape `(batch_size, sequence_length)` or `(batch_size, sequence_length, input_size)`): + Past values of the time series, that serve as context in order to predict the future. The sequence size + of this tensor must be larger than the `context_length` of the model, since the model will use the + larger size to construct lag features, i.e. additional values from the past which are added in order to + serve as "extra context". + + The `sequence_length` here is equal to `config.context_length` + `max(config.lags_sequence)`, which if + no `lags_sequence` is configured, is equal to `config.context_length` + 7 (as by default, the largest + look-back index in `config.lags_sequence` is 7). The property `_past_length` returns the actual length + of the past. + + The `past_values` is what the Transformer encoder gets as input (with optional additional features, + such as `static_categorical_features`, `static_real_features`, `past_time_features` and lags). + + Optionally, missing values need to be replaced with zeros and indicated via the `past_observed_mask`. + + For multivariate time series, the `input_size` > 1 dimension is required and corresponds to the number + of variates in the time series per time step. + past_time_features (`torch.FloatTensor` of shape `(batch_size, sequence_length, num_features)`): + Required time features, which the model internally will add to `past_values`. These could be things + like "month of year", "day of the month", etc. encoded as vectors (for instance as Fourier features). + These could also be so-called "age" features, which basically help the model know "at which point in + life" a time-series is. Age features have small values for distant past time steps and increase + monotonically the more we approach the current time step. Holiday features are also a good example of + time features. + + These features serve as the "positional encodings" of the inputs. So contrary to a model like BERT, + where the position encodings are learned from scratch internally as parameters of the model, the Time + Series Transformer requires to provide additional time features. The Time Series Transformer only + learns additional embeddings for `static_categorical_features`. + + Additional dynamic real covariates can be concatenated to this tensor, with the caveat that these + features must but known at prediction time. + + The `num_features` here is equal to `config.`num_time_features` + `config.num_dynamic_real_features`. + future_time_features (`torch.FloatTensor` of shape `(batch_size, prediction_length, num_features)`): + Required time features for the prediction window, which the model internally will add to sampled + predictions. These could be things like "month of year", "day of the month", etc. encoded as vectors + (for instance as Fourier features). These could also be so-called "age" features, which basically help + the model know "at which point in life" a time-series is. Age features have small values for distant + past time steps and increase monotonically the more we approach the current time step. Holiday features + are also a good example of time features. + + These features serve as the "positional encodings" of the inputs. So contrary to a model like BERT, + where the position encodings are learned from scratch internally as parameters of the model, the Time + Series Transformer requires to provide additional time features. The Time Series Transformer only + learns additional embeddings for `static_categorical_features`. + + Additional dynamic real covariates can be concatenated to this tensor, with the caveat that these + features must but known at prediction time. + + The `num_features` here is equal to `config.`num_time_features` + `config.num_dynamic_real_features`. + past_observed_mask (`torch.BoolTensor` of shape `(batch_size, sequence_length)` or `(batch_size, sequence_length, input_size)`, *optional*): + Boolean mask to indicate which `past_values` were observed and which were missing. Mask values selected + in `[0, 1]`: + + - 1 for values that are **observed**, + - 0 for values that are **missing** (i.e. NaNs that were replaced by zeros). + + static_categorical_features (`torch.LongTensor` of shape `(batch_size, number of static categorical features)`, *optional*): + Optional static categorical features for which the model will learn an embedding, which it will add to + the values of the time series. + + Static categorical features are features which have the same value for all time steps (static over + time). + + A typical example of a static categorical feature is a time series ID. + static_real_features (`torch.FloatTensor` of shape `(batch_size, number of static real features)`, *optional*): + Optional static real features which the model will add to the values of the time series. + + Static real features are features which have the same value for all time steps (static over time). + + A typical example of a static real feature is promotion information. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. + + Return: + [`SampleTSPredictionOutput`] where the outputs `sequences` tensor will have shape `(batch_size, number of + samples, prediction_length)` or `(batch_size, number of samples, prediction_length, input_size)` for + multivariate predictions. + """ + outputs = self( + static_categorical_features=static_categorical_features, + static_real_features=static_real_features, + past_time_features=past_time_features, + past_values=past_values, + past_observed_mask=past_observed_mask, + future_time_features=future_time_features, + future_values=None, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=True, + use_cache=True, + ) + + decoder = self.model.get_decoder() + enc_last_hidden = outputs.encoder_last_hidden_state + loc = outputs.loc + scale = outputs.scale + static_feat = outputs.static_features + + num_parallel_samples = self.config.num_parallel_samples + repeated_loc = loc.repeat_interleave(repeats=num_parallel_samples, dim=0) + repeated_scale = scale.repeat_interleave(repeats=num_parallel_samples, dim=0) + + repeated_past_values = ( + past_values.repeat_interleave(repeats=num_parallel_samples, dim=0) - repeated_loc + ) / repeated_scale + + expanded_static_feat = static_feat.unsqueeze(1).expand(-1, future_time_features.shape[1], -1) + features = torch.cat((expanded_static_feat, future_time_features), dim=-1) + repeated_features = features.repeat_interleave(repeats=num_parallel_samples, dim=0) + + repeated_enc_last_hidden = enc_last_hidden.repeat_interleave(repeats=num_parallel_samples, dim=0) + + future_samples = [] + + # greedy decoding + for k in range(self.config.prediction_length): + lagged_sequence = self.model.get_lagged_subsequences( + sequence=repeated_past_values, + subsequences_length=1 + k, + shift=1, + ) + + lags_shape = lagged_sequence.shape + reshaped_lagged_sequence = lagged_sequence.reshape(lags_shape[0], lags_shape[1], -1) + + decoder_input = torch.cat((reshaped_lagged_sequence, repeated_features[:, : k + 1]), dim=-1) + + dec_output = decoder(inputs_embeds=decoder_input, encoder_hidden_states=repeated_enc_last_hidden) + dec_last_hidden = dec_output.last_hidden_state + + params = self.parameter_projection(dec_last_hidden[:, -1:]) + distr = self.output_distribution(params, loc=repeated_loc, scale=repeated_scale) + next_sample = distr.sample() + + repeated_past_values = torch.cat( + (repeated_past_values, (next_sample - repeated_loc) / repeated_scale), dim=1 + ) + future_samples.append(next_sample) + + concat_future_samples = torch.cat(future_samples, dim=1) + + return SampleTSPredictionOutput( + sequences=concat_future_samples.reshape( + (-1, num_parallel_samples, self.config.prediction_length) + self.target_shape, + ) + ) + + +__all__ = ["InformerForPrediction", "InformerModel", "InformerPreTrainedModel"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/__init__.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..ed2bd053d2c8b9fdaec4211b2b74e964bb88a5e3 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/__init__.py @@ -0,0 +1,28 @@ +# Copyright 2024 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +from typing import TYPE_CHECKING + +from ...utils import _LazyModule +from ...utils.import_utils import define_import_structure + + +if TYPE_CHECKING: + from .configuration_instructblip import * + from .modeling_instructblip import * + from .processing_instructblip import * +else: + import sys + + _file = globals()["__file__"] + sys.modules[__name__] = _LazyModule(__name__, _file, define_import_structure(_file), module_spec=__spec__) diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/configuration_instructblip.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/configuration_instructblip.py new file mode 100644 index 0000000000000000000000000000000000000000..328d64761a566704a0c598d76a540c426a6084fe --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/configuration_instructblip.py @@ -0,0 +1,336 @@ +# coding=utf-8 +# Copyright 2023 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""InstructBLIP model configuration""" + +from ...configuration_utils import PretrainedConfig +from ...models.auto.modeling_auto import MODEL_FOR_CAUSAL_LM_MAPPING_NAMES +from ...utils import logging +from ..auto import CONFIG_MAPPING, AutoConfig + + +logger = logging.get_logger(__name__) + + +class InstructBlipVisionConfig(PretrainedConfig): + r""" + This is the configuration class to store the configuration of a [`InstructBlipVisionModel`]. It is used to + instantiate a InstructBLIP vision encoder according to the specified arguments, defining the model architecture. + Instantiating a configuration defaults will yield a similar configuration to that of the InstructBLIP + [Salesforce/instruct-blip-flan-t5](https://huggingface.co/Salesforce/instruct-blip-flan-t5) architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Args: + hidden_size (`int`, *optional*, defaults to 1408): + Dimensionality of the encoder layers and the pooler layer. + intermediate_size (`int`, *optional*, defaults to 6144): + Dimensionality of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder. + num_hidden_layers (`int`, *optional*, defaults to 39): + Number of hidden layers in the Transformer encoder. + num_attention_heads (`int`, *optional*, defaults to 16): + Number of attention heads for each attention layer in the Transformer encoder. + image_size (`int`, *optional*, defaults to 224): + The size (resolution) of each image. + patch_size (`int`, *optional*, defaults to 14): + The size (resolution) of each patch. + hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`): + The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`, + `"relu"`, `"selu"` and `"gelu_new"` `"gelu"` are supported. to 1e-5): The epsilon used by the layer + normalization layers. + layer_norm_eps (`float`, *optional*, defaults to 1e-06): + The epsilon used by the layer normalization layers. + attention_dropout (`float`, *optional*, defaults to 0.0): + The dropout ratio for the attention probabilities. + initializer_range (`float`, *optional*, defaults to 1e-10): + The standard deviation of the truncated_normal_initializer for initializing all weight matrices. + qkv_bias (`bool`, *optional*, defaults to `True`): + Whether to add a bias to the queries and values in the self-attention layers. + + Example: + + ```python + >>> from transformers import InstructBlipVisionConfig, InstructBlipVisionModel + + >>> # Initializing a InstructBlipVisionConfig with Salesforce/instruct-blip-flan-t5 style configuration + >>> configuration = InstructBlipVisionConfig() + + >>> # Initializing a InstructBlipVisionModel (with random weights) from the Salesforce/instruct-blip-flan-t5 style configuration + >>> model = InstructBlipVisionModel(configuration) + + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "instructblip_vision_model" + base_config_key = "vision_config" + + def __init__( + self, + hidden_size=1408, + intermediate_size=6144, + num_hidden_layers=39, + num_attention_heads=16, + image_size=224, + patch_size=14, + hidden_act="gelu", + layer_norm_eps=1e-6, + attention_dropout=0.0, + initializer_range=1e-10, + qkv_bias=True, + **kwargs, + ): + super().__init__(**kwargs) + + self.hidden_size = hidden_size + self.intermediate_size = intermediate_size + self.num_hidden_layers = num_hidden_layers + self.num_attention_heads = num_attention_heads + self.patch_size = patch_size + self.image_size = image_size + self.initializer_range = initializer_range + self.attention_dropout = attention_dropout + self.layer_norm_eps = layer_norm_eps + self.hidden_act = hidden_act + self.qkv_bias = qkv_bias + + +class InstructBlipQFormerConfig(PretrainedConfig): + r""" + This is the configuration class to store the configuration of a [`InstructBlipQFormerModel`]. It is used to + instantiate a InstructBLIP Querying Transformer (Q-Former) model according to the specified arguments, defining the + model architecture. Instantiating a configuration with the defaults will yield a similar configuration to that of + the InstructBLIP [Salesforce/instruct-blip-flan-t5](https://huggingface.co/Salesforce/instruct-blip-flan-t5) + architecture. Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. + Read the documentation from [`PretrainedConfig`] for more information. + + Note that [`InstructBlipQFormerModel`] is very similar to [`BertLMHeadModel`] with interleaved cross-attention. + + Args: + vocab_size (`int`, *optional*, defaults to 30522): + Vocabulary size of the Q-Former model. Defines the number of different tokens that can be represented by + the `inputs_ids` passed when calling the model. + hidden_size (`int`, *optional*, defaults to 768): + Dimensionality of the encoder layers and the pooler layer. + num_hidden_layers (`int`, *optional*, defaults to 12): + Number of hidden layers in the Transformer encoder. + num_attention_heads (`int`, *optional*, defaults to 12): + Number of attention heads for each attention layer in the Transformer encoder. + intermediate_size (`int`, *optional*, defaults to 3072): + Dimensionality of the "intermediate" (often named feed-forward) layer in the Transformer encoder. + hidden_act (`str` or `Callable`, *optional*, defaults to `"gelu"`): + The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`, + `"relu"`, `"silu"` and `"gelu_new"` are supported. + hidden_dropout_prob (`float`, *optional*, defaults to 0.1): + The dropout probability for all fully connected layers in the embeddings, encoder, and pooler. + attention_probs_dropout_prob (`float`, *optional*, defaults to 0.1): + The dropout ratio for the attention probabilities. + max_position_embeddings (`int`, *optional*, defaults to 512): + The maximum sequence length that this model might ever be used with. Typically set this to something large + just in case (e.g., 512 or 1024 or 2048). + initializer_range (`float`, *optional*, defaults to 0.02): + The standard deviation of the truncated_normal_initializer for initializing all weight matrices. + layer_norm_eps (`float`, *optional*, defaults to 1e-12): + The epsilon used by the layer normalization layers. + pad_token_id (`int`, *optional*, defaults to 0): + Token id used for padding sequences. + position_embedding_type (`str`, *optional*, defaults to `"absolute"`): + Type of position embedding. Choose one of `"absolute"`, `"relative_key"`, `"relative_key_query"`. For + positional embeddings use `"absolute"`. For more information on `"relative_key"`, please refer to + [Self-Attention with Relative Position Representations (Shaw et al.)](https://arxiv.org/abs/1803.02155). + For more information on `"relative_key_query"`, please refer to *Method 4* in [Improve Transformer Models + with Better Relative Position Embeddings (Huang et al.)](https://arxiv.org/abs/2009.13658). + cross_attention_frequency (`int`, *optional*, defaults to 2): + The frequency of adding cross-attention to the Transformer layers. + encoder_hidden_size (`int`, *optional*, defaults to 1408): + The hidden size of the hidden states for cross-attention. + + Examples: + + ```python + >>> from transformers import InstructBlipQFormerConfig, InstructBlipQFormerModel + + >>> # Initializing a InstructBLIP Salesforce/instruct-blip-flan-t5 style configuration + >>> configuration = InstructBlipQFormerConfig() + + >>> # Initializing a model (with random weights) from the Salesforce/instruct-blip-flan-t5 style configuration + >>> model = InstructBlipQFormerModel(configuration) + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "instructblip_qformer" + base_config_key = "qformer_config" + + def __init__( + self, + vocab_size=30522, + hidden_size=768, + num_hidden_layers=12, + num_attention_heads=12, + intermediate_size=3072, + hidden_act="gelu", + hidden_dropout_prob=0.1, + attention_probs_dropout_prob=0.1, + max_position_embeddings=512, + initializer_range=0.02, + layer_norm_eps=1e-12, + pad_token_id=0, + position_embedding_type="absolute", + cross_attention_frequency=2, + encoder_hidden_size=1408, + **kwargs, + ): + super().__init__(pad_token_id=pad_token_id, **kwargs) + + self.vocab_size = vocab_size + self.hidden_size = hidden_size + self.num_hidden_layers = num_hidden_layers + self.num_attention_heads = num_attention_heads + self.hidden_act = hidden_act + self.intermediate_size = intermediate_size + self.hidden_dropout_prob = hidden_dropout_prob + self.attention_probs_dropout_prob = attention_probs_dropout_prob + self.max_position_embeddings = max_position_embeddings + self.initializer_range = initializer_range + self.layer_norm_eps = layer_norm_eps + self.position_embedding_type = position_embedding_type + self.cross_attention_frequency = cross_attention_frequency + self.encoder_hidden_size = encoder_hidden_size + + +class InstructBlipConfig(PretrainedConfig): + r""" + [`InstructBlipConfig`] is the configuration class to store the configuration of a + [`InstructBlipForConditionalGeneration`]. It is used to instantiate a InstructBLIP model according to the specified + arguments, defining the vision model, Q-Former model and language model configs. Instantiating a configuration with + the defaults will yield a similar configuration to that of the InstructBLIP + [Salesforce/instruct-blip-flan-t5](https://huggingface.co/Salesforce/instruct-blip-flan-t5) architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Args: + vision_config (`dict`, *optional*): + Dictionary of configuration options used to initialize [`InstructBlipVisionConfig`]. + qformer_config (`dict`, *optional*): + Dictionary of configuration options used to initialize [`InstructBlipQFormerConfig`]. + text_config (`dict`, *optional*): + Dictionary of configuration options used to initialize any [`PretrainedConfig`]. + num_query_tokens (`int`, *optional*, defaults to 32): + The number of query tokens passed through the Transformer. + + image_token_index (`int`, *optional*): + Token index of special image token. + kwargs (*optional*): + Dictionary of keyword arguments. + + Example: + + ```python + >>> from transformers import ( + ... InstructBlipVisionConfig, + ... InstructBlipQFormerConfig, + ... OPTConfig, + ... InstructBlipConfig, + ... InstructBlipForConditionalGeneration, + ... ) + + >>> # Initializing a InstructBlipConfig with Salesforce/instruct-blip-flan-t5 style configuration + >>> configuration = InstructBlipConfig() + + >>> # Initializing a InstructBlipForConditionalGeneration (with random weights) from the Salesforce/instruct-blip-flan-t5 style configuration + >>> model = InstructBlipForConditionalGeneration(configuration) + + >>> # Accessing the model configuration + >>> configuration = model.config + + >>> # We can also initialize a InstructBlipConfig from a InstructBlipVisionConfig, InstructBlipQFormerConfig and any PretrainedConfig + + >>> # Initializing InstructBLIP vision, InstructBLIP Q-Former and language model configurations + >>> vision_config = InstructBlipVisionConfig() + >>> qformer_config = InstructBlipQFormerConfig() + >>> text_config = OPTConfig() + + >>> config = InstructBlipConfig.from_text_vision_configs(vision_config, qformer_config, text_config) + ```""" + + model_type = "instructblip" + sub_configs = { + "text_config": AutoConfig, + "qformer_config": InstructBlipQFormerConfig, + "vision_config": InstructBlipVisionConfig, + } + + def __init__( + self, + vision_config=None, + qformer_config=None, + text_config=None, + num_query_tokens=32, + image_token_index=None, + **kwargs, + ): + super().__init__(**kwargs) + + if vision_config is None: + vision_config = {} + logger.info("vision_config is None. initializing the InstructBlipVisionConfig with default values.") + + if qformer_config is None: + qformer_config = {} + logger.info("qformer_config is None. Initializing the InstructBlipQFormerConfig with default values.") + + if text_config is None: + text_config = {} + logger.info("text_config is None. Initializing the text config with default values (`OPTConfig`).") + + self.vision_config = InstructBlipVisionConfig(**vision_config) + self.qformer_config = InstructBlipQFormerConfig(**qformer_config) + text_model_type = text_config["model_type"] if "model_type" in text_config else "opt" + self.text_config = CONFIG_MAPPING[text_model_type](**text_config) + + self.num_query_tokens = num_query_tokens + self.image_token_index = image_token_index + self.qformer_config.encoder_hidden_size = self.vision_config.hidden_size + self.use_decoder_only_language_model = self.text_config.model_type in MODEL_FOR_CAUSAL_LM_MAPPING_NAMES + self.initializer_factor = 1.0 + self.initializer_range = 0.02 + + @classmethod + def from_vision_qformer_text_configs( + cls, + vision_config: InstructBlipVisionConfig, + qformer_config: InstructBlipQFormerConfig, + text_config: PretrainedConfig, + **kwargs, + ): + r""" + Instantiate a [`InstructBlipConfig`] (or a derived class) from a InstructBLIP vision model, Q-Former and + language model configurations. + + Returns: + [`InstructBlipConfig`]: An instance of a configuration object + """ + + return cls( + vision_config=vision_config.to_dict(), + qformer_config=qformer_config.to_dict(), + text_config=text_config.to_dict(), + **kwargs, + ) + + +__all__ = ["InstructBlipConfig", "InstructBlipQFormerConfig", "InstructBlipVisionConfig"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/convert_instructblip_original_to_pytorch.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/convert_instructblip_original_to_pytorch.py new file mode 100644 index 0000000000000000000000000000000000000000..f8b9c86cfddcd6e973b63822d8d91908723a59b9 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/convert_instructblip_original_to_pytorch.py @@ -0,0 +1,303 @@ +# coding=utf-8 +# Copyright 2023 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Convert InstructBLIP checkpoints from the original repository. + +URL: https://github.com/salesforce/LAVIS/tree/main/projects/instructblip +""" + +import argparse + +import requests +import torch + +# pip3 install salesforce-lavis +# I'm actually installing a slightly modified version: pip3 install git+https://github.com/nielsrogge/LAVIS.git@fix_lavis_float32 (there's also the fix_lavis branch) +# also note: to convert Vicuna checkpoints, we had to include /home/niels/python_projects/checkpoints/FastChat/vicuna-7b in lavis/configs/models/blip2/blip2_instruct_vicuna7b.yaml +# same for Vicuna-13b +from lavis.models import load_model_and_preprocess +from PIL import Image + +from transformers import ( + AutoTokenizer, + BlipImageProcessor, + InstructBlipConfig, + InstructBlipForConditionalGeneration, + InstructBlipProcessor, + InstructBlipQFormerConfig, + InstructBlipVisionConfig, + LlamaConfig, + LlamaTokenizerFast, + T5Config, + T5TokenizerFast, +) +from transformers.utils.constants import OPENAI_CLIP_MEAN, OPENAI_CLIP_STD + + +def load_demo_image(): + url = "https://raw.githubusercontent.com/salesforce/LAVIS/main/docs/_static/Confusing-Pictures.jpg" + image = Image.open(requests.get(url, stream=True).raw).convert("RGB") + + return image + + +# here we list all keys to be renamed (original name on the left, our name on the right) +def create_rename_keys(config): + rename_keys = [] + # fmt: off + + # vision encoder + rename_keys.append(("visual_encoder.cls_token", "vision_model.embeddings.class_embedding")) + rename_keys.append(("visual_encoder.pos_embed", "vision_model.embeddings.position_embedding")) + rename_keys.append(("visual_encoder.patch_embed.proj.weight", "vision_model.embeddings.patch_embedding.weight")) + rename_keys.append(("visual_encoder.patch_embed.proj.bias", "vision_model.embeddings.patch_embedding.bias")) + rename_keys.append(("ln_vision.weight", "vision_model.post_layernorm.weight")) + rename_keys.append(("ln_vision.bias", "vision_model.post_layernorm.bias")) + + for i in range(config.vision_config.num_hidden_layers): + rename_keys.append((f"visual_encoder.blocks.{i}.norm1.weight", f"vision_model.encoder.layers.{i}.layer_norm1.weight")) + rename_keys.append((f"visual_encoder.blocks.{i}.norm1.bias", f"vision_model.encoder.layers.{i}.layer_norm1.bias")) + rename_keys.append((f"visual_encoder.blocks.{i}.norm2.weight", f"vision_model.encoder.layers.{i}.layer_norm2.weight")) + rename_keys.append((f"visual_encoder.blocks.{i}.norm2.bias", f"vision_model.encoder.layers.{i}.layer_norm2.bias")) + rename_keys.append((f"visual_encoder.blocks.{i}.attn.qkv.weight", f"vision_model.encoder.layers.{i}.self_attn.qkv.weight")) + rename_keys.append((f"visual_encoder.blocks.{i}.attn.proj.weight", f"vision_model.encoder.layers.{i}.self_attn.projection.weight",)) + rename_keys.append((f"visual_encoder.blocks.{i}.attn.proj.bias", f"vision_model.encoder.layers.{i}.self_attn.projection.bias")) + rename_keys.append((f"visual_encoder.blocks.{i}.mlp.fc1.weight", f"vision_model.encoder.layers.{i}.mlp.fc1.weight")) + rename_keys.append((f"visual_encoder.blocks.{i}.mlp.fc1.bias", f"vision_model.encoder.layers.{i}.mlp.fc1.bias")) + rename_keys.append((f"visual_encoder.blocks.{i}.mlp.fc2.weight", f"vision_model.encoder.layers.{i}.mlp.fc2.weight")) + rename_keys.append((f"visual_encoder.blocks.{i}.mlp.fc2.bias", f"vision_model.encoder.layers.{i}.mlp.fc2.bias")) + + # QFormer + rename_keys.append(("Qformer.bert.embeddings.LayerNorm.weight", "qformer.embeddings.layernorm.weight")) + rename_keys.append(("Qformer.bert.embeddings.LayerNorm.bias", "qformer.embeddings.layernorm.bias")) + + # fmt: on + return rename_keys + + +def rename_key(dct, old, new): + val = dct.pop(old) + dct[new] = val + + +def read_in_q_v_bias(state_dict, config): + for i in range(config.vision_config.num_hidden_layers): + # read in original q and v biases + q_bias = state_dict.pop(f"visual_encoder.blocks.{i}.attn.q_bias") + v_bias = state_dict.pop(f"visual_encoder.blocks.{i}.attn.v_bias") + + # next, set bias in the state dict + qkv_bias = torch.cat((q_bias, torch.zeros_like(v_bias, requires_grad=False), v_bias)) + state_dict[f"vision_model.encoder.layers.{i}.self_attn.qkv.bias"] = qkv_bias + + +def get_blip2_config(model_name): + image_size = 364 if "coco" in model_name else 224 + vision_config = InstructBlipVisionConfig(image_size=image_size).to_dict() + + # make sure the models have proper bos_token_id and eos_token_id set (important for generation) + # seems like flan-T5 models don't have bos_token_id properly set? + if "t5-xl" in model_name: + text_config = T5Config.from_pretrained("google/flan-t5-xl", dense_act_fn="gelu", bos_token_id=1).to_dict() + elif "t5-xxl" in model_name: + text_config = T5Config.from_pretrained("google/flan-t5-xxl", dense_act_fn="gelu", bos_token_id=1).to_dict() + elif "vicuna-7b" in model_name: + text_config = LlamaConfig.from_pretrained("decapoda-research/llama-7b-hf", vocab_size=32001).to_dict() + elif "vicuna-13b" in model_name: + text_config = LlamaConfig.from_pretrained("decapoda-research/llama-13b-hf", vocab_size=32001).to_dict() + else: + raise ValueError("Model name not supported") + + # the authors add one special "[DEC]" token to the vocab of Q-Former, hence vocab size = 30522 + 1 + qformer_config = InstructBlipQFormerConfig(vocab_size=30523).to_dict() + config = InstructBlipConfig(vision_config=vision_config, text_config=text_config, qformer_config=qformer_config) + + return config, image_size + + +@torch.no_grad() +def convert_blip2_checkpoint(model_name, pytorch_dump_folder_path=None, push_to_hub=False): + """ + Copy/paste/tweak model's weights to Transformers design. + """ + qformer_tokenizer = AutoTokenizer.from_pretrained("google-bert/bert-base-uncased", truncation_side="left") + qformer_tokenizer.add_special_tokens({"bos_token": "[DEC]"}) + + if "t5" in model_name: + tokenizer = T5TokenizerFast.from_pretrained("google/flan-t5-xl", truncation_side="left") + elif "vicuna" in model_name: + # the following was used in the original implementation: + # tokenizer = LlamaTokenizer.from_pretrained("huggyllama/llama-7b", use_fast=False, truncation_side="left") + # tokenizer.add_special_tokens({"pad_token": "[PAD]"}) + # tokenizer.add_special_tokens({"bos_token": ""}) + # tokenizer.add_special_tokens({"eos_token": ""}) + # tokenizer.add_special_tokens({"unk_token": ""}) + tokenizer = LlamaTokenizerFast.from_pretrained( + "huggyllama/llama-7b", truncation_side="left", bos_token="", unk_token="" + ) + tokenizer.add_special_tokens({"pad_token": "[PAD]"}) + + config, image_size = get_blip2_config(model_name) + hf_model = InstructBlipForConditionalGeneration(config).eval() + + model_name_to_original = { + "instructblip-vicuna-7b": ("blip2_vicuna_instruct", "vicuna7b"), + "instructblip-vicuna-13b": ("blip2_vicuna_instruct", "vicuna13b"), + "instructblip-flan-t5-xl": ("blip2_t5_instruct", "flant5xl"), + "instructblip-flan-t5-xxl": ("blip2_t5_instruct", "flant5xxl"), + } + + name, type = model_name_to_original[model_name] + + # load original model + print("Loading original model...") + hf_model_device = "cuda:1" if torch.cuda.is_available() else "cpu" + lavis_device = "cuda:2" if torch.cuda.is_available() else "cpu" + original_model, vis_processors, _ = load_model_and_preprocess( + name=name, model_type=type, is_eval=True, device=lavis_device + ) + original_model.eval() + print("Done!") + + # update state dict keys + state_dict = original_model.state_dict() + rename_keys = create_rename_keys(config) + for src, dest in rename_keys: + rename_key(state_dict, src, dest) + + # some keys can be renamed efficiently + for key, val in state_dict.copy().items(): + val = state_dict.pop(key) + if key.startswith("Qformer.bert"): + key = key.replace("Qformer.bert", "qformer") + if "attention.self" in key: + key = key.replace("self", "attention") + if "llm_proj" in key: + key = key.replace("llm_proj", "language_projection") + if "t5_proj" in key: + key = key.replace("t5_proj", "language_projection") + if key.startswith("llm_model"): + key = key.replace("llm_model", "language_model") + if key.startswith("t5"): + key = key.replace("t5", "language") + state_dict[key] = val + + # read in qv biases + read_in_q_v_bias(state_dict, config) + + # note: weights get loaded in torch.float32 by default + hf_model.load_state_dict(state_dict, strict=True) + + image = load_demo_image() + prompt = "What is unusual about this image?" + + # create processor + image_processor = BlipImageProcessor( + size={"height": image_size, "width": image_size}, image_mean=OPENAI_CLIP_MEAN, image_std=OPENAI_CLIP_STD + ) + processor = InstructBlipProcessor( + image_processor=image_processor, + tokenizer=tokenizer, + qformer_tokenizer=qformer_tokenizer, + ) + inputs = processor(images=image, text=prompt, return_tensors="pt").to(hf_model_device) + + # make sure processor creates exact same pixel values + original_pixel_values = vis_processors["eval"](image).unsqueeze(0).to(lavis_device) + pixel_values = inputs.pixel_values + assert torch.allclose(original_pixel_values.to(pixel_values.device), pixel_values) + + original_model.to(lavis_device) + hf_model.to(hf_model_device) + with torch.no_grad(): + if "vicuna" in model_name: + original_logits = original_model({"image": original_pixel_values, "text_input": [prompt]}).logits + logits = hf_model(**inputs).logits + else: + original_logits = original_model( + {"image": original_pixel_values, "text_input": [prompt], "text_output": ["\n"]} + ).logits + label_input_ids = tokenizer("\n", return_tensors="pt").input_ids.to(hf_model_device) + labels = label_input_ids.masked_fill(label_input_ids == tokenizer.pad_token_id, -100) + logits = hf_model(**inputs, labels=labels).logits + + print("First values of original logits:", original_logits[0, :3, :3]) + print("First values of HF logits:", logits[0, :3, :3]) + + # assert values + assert original_logits.shape == logits.shape + atol = 1e-4 if "vicuna" in model_name else 1e-5 + assert torch.allclose(original_logits.to(logits.device), logits, atol=atol) + print("Looks ok!") + + print("Generating with original model...") + original_outputs = original_model.generate({"image": original_pixel_values, "prompt": prompt}, num_beams=5) + + # important: we need to cast the weights of the HF model to the appropriate type + print("Generating with HF model...") + outputs = hf_model.generate( + **inputs, + do_sample=False, + num_beams=5, + max_length=256, + min_length=1, + top_p=0.9, + repetition_penalty=1.5, + length_penalty=1.0, + temperature=1, + ) + if "vicuna" in model_name: + # convert output id 0 to 2 (eos_token_id) + # TODO add this in the generate method? + outputs[outputs == 0] = 2 + print("Original generation:", original_outputs) + output_text = processor.batch_decode(outputs, skip_special_tokens=True) + output_text = [text.strip() for text in output_text] + print("HF generation:", output_text) + + if pytorch_dump_folder_path is not None: + processor.save_pretrained(pytorch_dump_folder_path) + hf_model.save_pretrained(pytorch_dump_folder_path) + + if push_to_hub: + processor.push_to_hub(f"Salesforce/{model_name}") + hf_model.push_to_hub(f"Salesforce/{model_name}") + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + choices = [ + "instructblip-vicuna-7b", + "instructblip-vicuna-13b", + "instructblip-flan-t5-xl", + "instructblip-flan-t5-xxl", + ] + parser.add_argument( + "--model_name", + default="instructblip-flan-t5-xl", + choices=choices, + type=str, + help="Path to hf config.json of model to convert", + ) + parser.add_argument("--pytorch_dump_folder_path", default=None, type=str, help="Path to the output PyTorch model.") + parser.add_argument( + "--push_to_hub", + action="store_true", + help="Whether to push the model and processor to the hub after converting", + ) + + args = parser.parse_args() + + convert_blip2_checkpoint(args.model_name, args.pytorch_dump_folder_path, args.push_to_hub) diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/modeling_instructblip.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/modeling_instructblip.py new file mode 100644 index 0000000000000000000000000000000000000000..d685dd6e99b39453670edee5c27d860e80b78594 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/modeling_instructblip.py @@ -0,0 +1,1652 @@ +# coding=utf-8 +# Copyright 2023 The Salesforce Authors and The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""PyTorch InstructBLIP model.""" + +import math +from dataclasses import dataclass +from typing import Any, Optional, Tuple, Union + +import torch +import torch.utils.checkpoint +from torch import nn +from torch.nn import CrossEntropyLoss + +from ...activations import ACT2FN +from ...generation import GenerationMixin +from ...modeling_outputs import ( + BaseModelOutput, + BaseModelOutputWithPastAndCrossAttentions, + BaseModelOutputWithPooling, + BaseModelOutputWithPoolingAndCrossAttentions, +) +from ...modeling_utils import PreTrainedModel +from ...pytorch_utils import apply_chunking_to_forward, find_pruneable_heads_and_indices, prune_linear_layer +from ...utils import ( + ModelOutput, + add_start_docstrings, + add_start_docstrings_to_model_forward, + logging, + replace_return_docstrings, + torch_int, +) +from ..auto import AutoModelForCausalLM, AutoModelForSeq2SeqLM +from .configuration_instructblip import InstructBlipConfig, InstructBlipQFormerConfig, InstructBlipVisionConfig + + +logger = logging.get_logger(__name__) + +_CHECKPOINT_FOR_DOC = "Salesforce/instructblip-flan-t5-xl" + + +@dataclass +# Copied from transformers.models.blip_2.modeling_blip_2.Blip2ForConditionalGenerationModelOutput with Blip2->InstructBlip +class InstructBlipForConditionalGenerationModelOutput(ModelOutput): + """ + Class defining the outputs of [`InstructBlipForConditionalGeneration`]. + + Args: + loss (`torch.FloatTensor`, *optional*, returned when `labels` is provided, `torch.FloatTensor` of shape `(1,)`): + Language modeling loss from the language model. + logits (`torch.FloatTensor` of shape `(batch_size, sequence_length, config.vocab_size)`): + Prediction scores of the language modeling head of the language model. + vision_outputs (`BaseModelOutputWithPooling`): + Outputs of the vision encoder. + qformer_outputs (`BaseModelOutputWithPoolingAndCrossAttentions`): + Outputs of the Q-Former (Querying Transformer). + language_model_outputs (`CausalLMOutputWithPast` or `Seq2SeqLMOutput`): + Outputs of the language model. + """ + + loss: Optional[Tuple[torch.FloatTensor]] = None + logits: Optional[Tuple[torch.FloatTensor]] = None + vision_outputs: Optional[torch.FloatTensor] = None + qformer_outputs: Optional[Tuple[torch.FloatTensor]] = None + language_model_outputs: Optional[Tuple[torch.FloatTensor]] = None + + def to_tuple(self) -> Tuple[Any]: + return tuple( + self[k] + if k not in ["vision_outputs", "qformer_outputs", "language_model_outputs"] + else getattr(self, k).to_tuple() + for k in self.keys() + ) + + +# Copied from transformers.models.blip.modeling_blip.BlipVisionEmbeddings with Blip->InstructBlip +class InstructBlipVisionEmbeddings(nn.Module): + def __init__(self, config: InstructBlipVisionConfig): + super().__init__() + self.config = config + self.embed_dim = config.hidden_size + self.image_size = config.image_size + self.patch_size = config.patch_size + + self.class_embedding = nn.Parameter(torch.randn(1, 1, self.embed_dim)) + + self.patch_embedding = nn.Conv2d( + in_channels=3, out_channels=self.embed_dim, kernel_size=self.patch_size, stride=self.patch_size + ) + + self.num_patches = (self.image_size // self.patch_size) ** 2 + self.num_positions = self.num_patches + 1 + + self.position_embedding = nn.Parameter(torch.randn(1, self.num_positions, self.embed_dim)) + + def interpolate_pos_encoding(self, embeddings: torch.Tensor, height: int, width: int) -> torch.Tensor: + """ + This method allows to interpolate the pre-trained position encodings, to be able to use the model on higher resolution + images. This method is also adapted to support torch.jit tracing. + + Adapted from: + - https://github.com/facebookresearch/dino/blob/de9ee3df6cf39fac952ab558447af1fa1365362a/vision_transformer.py#L174-L194, and + - https://github.com/facebookresearch/dinov2/blob/e1277af2ba9496fbadf7aec6eba56e8d882d1e35/dinov2/models/vision_transformer.py#L179-L211 + """ + + num_patches = embeddings.shape[1] - 1 + num_positions = self.position_embedding.shape[1] - 1 + + # always interpolate when tracing to ensure the exported model works for dynamic input shapes + if not torch.jit.is_tracing() and num_patches == num_positions and height == width: + return self.position_embedding + + class_pos_embed = self.position_embedding[:, :1] + patch_pos_embed = self.position_embedding[:, 1:] + + dim = embeddings.shape[-1] + + new_height = height // self.patch_size + new_width = width // self.patch_size + + sqrt_num_positions = torch_int(num_positions**0.5) + patch_pos_embed = patch_pos_embed.reshape(1, sqrt_num_positions, sqrt_num_positions, dim) + patch_pos_embed = patch_pos_embed.permute(0, 3, 1, 2) + + patch_pos_embed = nn.functional.interpolate( + patch_pos_embed, + size=(new_height, new_width), + mode="bicubic", + align_corners=False, + ) + + patch_pos_embed = patch_pos_embed.permute(0, 2, 3, 1).view(1, -1, dim) + + return torch.cat((class_pos_embed, patch_pos_embed), dim=1) + + def forward(self, pixel_values: torch.FloatTensor, interpolate_pos_encoding: bool = False) -> torch.Tensor: + batch_size, _, height, width = pixel_values.shape + target_dtype = self.patch_embedding.weight.dtype + patch_embeds = self.patch_embedding(pixel_values.to(dtype=target_dtype)) # shape = [*, width, grid, grid] + patch_embeds = patch_embeds.flatten(2).transpose(1, 2) + class_embeds = self.class_embedding.expand(batch_size, 1, -1).to(target_dtype) + embeddings = torch.cat([class_embeds, patch_embeds], dim=1) + if interpolate_pos_encoding: + position_embedding = self.interpolate_pos_encoding(embeddings, height, width) + else: + position_embedding = self.position_embedding + embeddings = embeddings + position_embedding[:, : embeddings.size(1), :].to(target_dtype) + return embeddings + + +# Copied from transformers.models.blip_2.modeling_blip_2.Blip2Attention with Blip2->InstructBlip +class InstructBlipAttention(nn.Module): + """Multi-headed attention from 'Attention Is All You Need' paper""" + + def __init__(self, config): + super().__init__() + self.config = config + self.embed_dim = config.hidden_size + self.num_heads = config.num_attention_heads + self.head_dim = self.embed_dim // self.num_heads + if self.head_dim * self.num_heads != self.embed_dim: + raise ValueError( + f"embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim} and `num_heads`:" + f" {self.num_heads})." + ) + self.scale = self.head_dim**-0.5 + self.dropout = nn.Dropout(config.attention_dropout) + + # small tweak here compared to CLIP, no bias here + self.qkv = nn.Linear(self.embed_dim, 3 * self.embed_dim, bias=False) + + if config.qkv_bias: + q_bias = nn.Parameter(torch.zeros(self.embed_dim)) + v_bias = nn.Parameter(torch.zeros(self.embed_dim)) + else: + q_bias = None + v_bias = None + + if q_bias is not None: + qkv_bias = torch.cat((q_bias, torch.zeros_like(v_bias, requires_grad=False), v_bias)) + self.qkv.bias = nn.Parameter(qkv_bias) + + self.projection = nn.Linear(self.embed_dim, self.embed_dim) + + def _shape(self, tensor: torch.Tensor, seq_len: int, bsz: int): + return tensor.view(bsz, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous() + + def forward( + self, + hidden_states: torch.Tensor, + head_mask: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]: + """Input shape: Batch x Time x Channel""" + + bsz, tgt_len, embed_dim = hidden_states.size() + + mixed_qkv = self.qkv(hidden_states) + + mixed_qkv = mixed_qkv.reshape(bsz, tgt_len, 3, self.num_heads, embed_dim // self.num_heads).permute( + 2, 0, 3, 1, 4 + ) + query_states, key_states, value_states = mixed_qkv[0], mixed_qkv[1], mixed_qkv[2] + + # Take the dot product between "query" and "key" to get the raw attention scores. + attention_scores = torch.matmul(query_states, key_states.transpose(-1, -2)) + + attention_scores = attention_scores * self.scale + + # Normalize the attention scores to probabilities. + attention_probs = nn.functional.softmax(attention_scores, dim=-1) + + # This is actually dropping out entire tokens to attend to, which might + # seem a bit unusual, but is taken from the original Transformer paper. + attention_probs = self.dropout(attention_probs) + + # Mask heads if we want to + if head_mask is not None: + attention_probs = attention_probs * head_mask + + context_layer = torch.matmul(attention_probs, value_states).permute(0, 2, 1, 3) + + new_context_layer_shape = context_layer.size()[:-2] + (self.embed_dim,) + context_layer = context_layer.reshape(new_context_layer_shape) + + output = self.projection(context_layer) + + outputs = (output, attention_probs) if output_attentions else (output, None) + + return outputs + + +# Copied from transformers.models.blip.modeling_blip.BlipMLP +class InstructBlipMLP(nn.Module): + def __init__(self, config): + super().__init__() + self.config = config + self.activation_fn = ACT2FN[config.hidden_act] + self.fc1 = nn.Linear(config.hidden_size, config.intermediate_size) + self.fc2 = nn.Linear(config.intermediate_size, config.hidden_size) + + def forward(self, hidden_states: torch.Tensor) -> torch.Tensor: + hidden_states = self.fc1(hidden_states) + hidden_states = self.activation_fn(hidden_states) + hidden_states = self.fc2(hidden_states) + return hidden_states + + +# Copied from transformers.models.blip.modeling_blip.BlipEncoderLayer with Blip->InstructBlip +class InstructBlipEncoderLayer(nn.Module): + def __init__(self, config: InstructBlipConfig): + super().__init__() + self.embed_dim = config.hidden_size + self.self_attn = InstructBlipAttention(config) + self.layer_norm1 = nn.LayerNorm(self.embed_dim, eps=config.layer_norm_eps) + self.mlp = InstructBlipMLP(config) + self.layer_norm2 = nn.LayerNorm(self.embed_dim, eps=config.layer_norm_eps) + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: torch.Tensor, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.FloatTensor]: + """ + Args: + hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)` + attention_mask (`torch.FloatTensor`): attention mask of size + `(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values. + `(config.encoder_attention_heads,)`. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + """ + residual = hidden_states + + hidden_states = self.layer_norm1(hidden_states) + hidden_states, attn_weights = self.self_attn( + hidden_states=hidden_states, + head_mask=attention_mask, + output_attentions=output_attentions, + ) + hidden_states = hidden_states + residual + residual = hidden_states + hidden_states = self.layer_norm2(hidden_states) + hidden_states = self.mlp(hidden_states) + + hidden_states = hidden_states + residual + + outputs = (hidden_states,) + + if output_attentions: + outputs += (attn_weights,) + + return outputs + + +class InstructBlipPreTrainedModel(PreTrainedModel): + """ + An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained + models. + """ + + config_class = InstructBlipConfig + base_model_prefix = "blip" + supports_gradient_checkpointing = True + + _no_split_modules = [ + "InstructBlipQFormerEmbeddings", + "InstructBlipAttention", + "InstructBlipQFormerMultiHeadAttention", + "InstructBlipQFormerSelfOutput", + ] + + # Copied from transformers.models.blip_2.modeling_blip_2.Blip2PreTrainedModel._init_weights with Blip2->InstructBlip + def _init_weights(self, module): + """Initialize the weights""" + factor = self.config.initializer_range + if isinstance(module, nn.Conv2d) or isinstance(module, nn.Embedding) or isinstance(module, nn.Linear): + module.weight.data.normal_(mean=0.0, std=factor) + if hasattr(module, "bias") and module.bias is not None: + module.bias.data.zero_() + + if isinstance(module, InstructBlipVisionEmbeddings): + if hasattr(self.config, "vision_config") and not isinstance(self.config, InstructBlipVisionConfig): + factor = self.config.vision_config.initializer_range + nn.init.trunc_normal_(module.position_embedding, mean=0.0, std=factor) + nn.init.trunc_normal_(module.class_embedding, mean=0.0, std=factor) + + elif isinstance(module, nn.LayerNorm): + module.bias.data.zero_() + module.weight.data.fill_(1.0) + elif isinstance(module, nn.Linear) and module.bias is not None: + module.bias.data.zero_() + + +INSTRUCTBLIP_START_DOCSTRING = r""" + This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the + library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads + etc.) + + This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. + Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage + and behavior. + + Parameters: + config ([`InstructBlipConfig`]): Model configuration class with all the parameters of the model. + Initializing with a config file does not load the weights associated with the model, only the + configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + +INSTRUCTBLIP_VISION_INPUTS_DOCSTRING = r""" + Args: + pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`): + Pixel values. Pixel values can be obtained using [`InstructBlipProcessor`]. See + [`InstructBlipProcessor.__call__`] for details. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + interpolate_pos_encoding (`bool`, *optional*, defaults to `False`): + Whether to interpolate the pre-trained position encodings. +""" + +INSTRUCTBLIP_INPUTS_DOCSTRING = r""" + Args: + pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`): + Pixel values. Pixel values can be obtained using [`InstructBlipProcessor`]. See + [`InstructBlipProcessor.__call__`] for details. + + qformer_input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Indices of input sequence tokens in the vocabulary of the Q-Former. Input tokens can optionally be provided + to serve as text prompt, which the Q-Former model will encode. + + Indices can be obtained using [`InstructBlipProcessor`]. See [`InstructBlipProcessor.__call__`] for + details. + + [What are input IDs?](../glossary#input-ids) + + qformer_attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + + input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Indices of input sequence tokens in the vocabulary of the language model. Input tokens can optionally be + provided to serve as text prompt, which the language model can continue. + + Indices can be obtained using [`InstructBlipProcessor`]. See [`InstructBlipProcessor.__call__`] for + details. + + [What are input IDs?](../glossary#input-ids) + + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + + decoder_input_ids (`torch.LongTensor` of shape `(batch_size, target_sequence_length)`, *optional*): + Indices of decoder input sequence tokens in the vocabulary of the language model. Only relevant in case an + encoder-decoder language model (like T5) is used. + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for details. [What are decoder input IDs?](../glossary#decoder-input-ids) + + decoder_attention_mask (`torch.BoolTensor` of shape `(batch_size, target_sequence_length)`, *optional*): + Default behavior: generate a tensor that ignores pad tokens in `decoder_input_ids`. Causal mask will also + be used by default. + + Only relevant in case an encoder-decoder language model (like T5) is used. + + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + interpolate_pos_encoding (`bool`, *optional*, defaults to `False`): + Whether to interpolate the pre-trained position encodings. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). +""" + + +# Copied from transformers.models.blip.modeling_blip.BlipEncoder with Blip->InstructBlip +class InstructBlipEncoder(nn.Module): + """ + Transformer encoder consisting of `config.num_hidden_layers` self attention layers. Each layer is a + [`InstructBlipEncoderLayer`]. + + Args: + config (`InstructBlipConfig`): + The corresponding vision configuration for the `InstructBlipEncoder`. + """ + + def __init__(self, config: InstructBlipConfig): + super().__init__() + self.config = config + self.layers = nn.ModuleList([InstructBlipEncoderLayer(config) for _ in range(config.num_hidden_layers)]) + self.gradient_checkpointing = False + + def forward( + self, + inputs_embeds, + attention_mask: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, BaseModelOutput]: + r""" + Args: + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + Embedded representation of the inputs. Should be float, not int tokens. + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors + for more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + encoder_states = () if output_hidden_states else None + all_attentions = () if output_attentions else None + + hidden_states = inputs_embeds + for idx, encoder_layer in enumerate(self.layers): + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + if self.gradient_checkpointing and self.training: + layer_outputs = self._gradient_checkpointing_func( + encoder_layer.__call__, + hidden_states, + attention_mask, + output_attentions, + ) + else: + layer_outputs = encoder_layer( + hidden_states, + attention_mask, + output_attentions=output_attentions, + ) + + hidden_states = layer_outputs[0] + + if output_attentions: + all_attentions = all_attentions + (layer_outputs[1],) + + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + + if not return_dict: + return tuple(v for v in [hidden_states, encoder_states, all_attentions] if v is not None) + return BaseModelOutput( + last_hidden_state=hidden_states, hidden_states=encoder_states, attentions=all_attentions + ) + + +# Copied from transformers.models.blip.modeling_blip.BlipVisionModel with Blip->InstructBlip, BLIP->INSTRUCTBLIP +class InstructBlipVisionModel(InstructBlipPreTrainedModel): + main_input_name = "pixel_values" + config_class = InstructBlipVisionConfig + + def __init__(self, config: InstructBlipVisionConfig): + super().__init__(config) + self.config = config + embed_dim = config.hidden_size + + self.embeddings = InstructBlipVisionEmbeddings(config) + self.encoder = InstructBlipEncoder(config) + self.post_layernorm = nn.LayerNorm(embed_dim, eps=config.layer_norm_eps) + + self.post_init() + + @add_start_docstrings_to_model_forward(INSTRUCTBLIP_VISION_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=BaseModelOutputWithPooling, config_class=InstructBlipVisionConfig) + def forward( + self, + pixel_values: Optional[torch.FloatTensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + interpolate_pos_encoding: bool = False, + ) -> Union[Tuple, BaseModelOutputWithPooling]: + r""" + Returns: + + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if pixel_values is None: + raise ValueError("You have to specify pixel_values") + + hidden_states = self.embeddings(pixel_values, interpolate_pos_encoding=interpolate_pos_encoding) + + encoder_outputs = self.encoder( + inputs_embeds=hidden_states, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + + last_hidden_state = encoder_outputs[0] + last_hidden_state = self.post_layernorm(last_hidden_state) + + pooled_output = last_hidden_state[:, 0, :] + pooled_output = self.post_layernorm(pooled_output) + + if not return_dict: + return (last_hidden_state, pooled_output) + encoder_outputs[1:] + + return BaseModelOutputWithPooling( + last_hidden_state=last_hidden_state, + pooler_output=pooled_output, + hidden_states=encoder_outputs.hidden_states, + attentions=encoder_outputs.attentions, + ) + + def get_input_embeddings(self): + return self.embeddings + + +class InstructBlipQFormerMultiHeadAttention(nn.Module): + def __init__(self, config, is_cross_attention=False): + super().__init__() + self.config = config + if config.hidden_size % config.num_attention_heads != 0 and not hasattr(config, "embedding_size"): + raise ValueError( + "The hidden size (%d) is not a multiple of the number of attention heads (%d)" + % (config.hidden_size, config.num_attention_heads) + ) + + self.num_attention_heads = config.num_attention_heads + self.attention_head_size = int(config.hidden_size / config.num_attention_heads) + self.all_head_size = self.num_attention_heads * self.attention_head_size + + self.query = nn.Linear(config.hidden_size, self.all_head_size) + if is_cross_attention: + self.key = nn.Linear(config.encoder_hidden_size, self.all_head_size) + self.value = nn.Linear(config.encoder_hidden_size, self.all_head_size) + else: + self.key = nn.Linear(config.hidden_size, self.all_head_size) + self.value = nn.Linear(config.hidden_size, self.all_head_size) + + self.dropout = nn.Dropout(config.attention_probs_dropout_prob) + self.position_embedding_type = getattr(config, "position_embedding_type", "absolute") + if self.position_embedding_type == "relative_key" or self.position_embedding_type == "relative_key_query": + self.max_position_embeddings = config.max_position_embeddings + self.distance_embedding = nn.Embedding(2 * config.max_position_embeddings - 1, self.attention_head_size) + self.save_attention = False + + def save_attn_gradients(self, attn_gradients): + self.attn_gradients = attn_gradients + + def get_attn_gradients(self): + return self.attn_gradients + + def save_attention_map(self, attention_map): + self.attention_map = attention_map + + def get_attention_map(self): + return self.attention_map + + def transpose_for_scores(self, x): + new_x_shape = x.size()[:-1] + (self.num_attention_heads, self.attention_head_size) + x = x.view(*new_x_shape) + return x.permute(0, 2, 1, 3) + + def forward( + self, + hidden_states, + attention_mask=None, + head_mask=None, + encoder_hidden_states=None, + encoder_attention_mask=None, + past_key_value=None, + output_attentions=False, + ): + # If this is instantiated as a cross-attention module, the keys + # and values come from an encoder; the attention mask needs to be + # such that the encoder's padding tokens are not attended to. + is_cross_attention = encoder_hidden_states is not None + + if is_cross_attention: + key_layer = self.transpose_for_scores(self.key(encoder_hidden_states)) + value_layer = self.transpose_for_scores(self.value(encoder_hidden_states)) + attention_mask = encoder_attention_mask + elif past_key_value is not None: + key_layer = self.transpose_for_scores(self.key(hidden_states)) + value_layer = self.transpose_for_scores(self.value(hidden_states)) + key_layer = torch.cat([past_key_value[0], key_layer], dim=2) + value_layer = torch.cat([past_key_value[1], value_layer], dim=2) + else: + key_layer = self.transpose_for_scores(self.key(hidden_states)) + value_layer = self.transpose_for_scores(self.value(hidden_states)) + + mixed_query_layer = self.query(hidden_states) + + query_layer = self.transpose_for_scores(mixed_query_layer) + + past_key_value = (key_layer, value_layer) + + # Take the dot product between "query" and "key" to get the raw attention scores. + attention_scores = torch.matmul(query_layer, key_layer.transpose(-1, -2)) + + if self.position_embedding_type == "relative_key" or self.position_embedding_type == "relative_key_query": + seq_length = hidden_states.size()[1] + position_ids_l = torch.arange(seq_length, dtype=torch.long, device=hidden_states.device).view(-1, 1) + position_ids_r = torch.arange(seq_length, dtype=torch.long, device=hidden_states.device).view(1, -1) + distance = position_ids_l - position_ids_r + positional_embedding = self.distance_embedding(distance + self.max_position_embeddings - 1) + positional_embedding = positional_embedding.to(dtype=query_layer.dtype) # fp16 compatibility + + if self.position_embedding_type == "relative_key": + relative_position_scores = torch.einsum("bhld,lrd->bhlr", query_layer, positional_embedding) + attention_scores = attention_scores + relative_position_scores + elif self.position_embedding_type == "relative_key_query": + relative_position_scores_query = torch.einsum("bhld,lrd->bhlr", query_layer, positional_embedding) + relative_position_scores_key = torch.einsum("bhrd,lrd->bhlr", key_layer, positional_embedding) + attention_scores = attention_scores + relative_position_scores_query + relative_position_scores_key + + attention_scores = attention_scores / math.sqrt(self.attention_head_size) + attention_scores_dtype = attention_scores.dtype + + if attention_mask is not None: + # Apply the attention mask is (precomputed for all layers in BertModel forward() function) + attention_scores = attention_scores + attention_mask + + # Normalize the attention scores to probabilities. + attention_probs = nn.Softmax(dim=-1)(attention_scores).to(attention_scores_dtype) + + if is_cross_attention and self.save_attention: + self.save_attention_map(attention_probs) + attention_probs.register_hook(self.save_attn_gradients) + + # This is actually dropping out entire tokens to attend to, which might + # seem a bit unusual, but is taken from the original Transformer paper. + attention_probs_dropped = self.dropout(attention_probs) + + # Mask heads if we want to + if head_mask is not None: + attention_probs_dropped = attention_probs_dropped * head_mask + + context_layer = torch.matmul(attention_probs_dropped, value_layer) + + context_layer = context_layer.permute(0, 2, 1, 3).contiguous() + new_context_layer_shape = context_layer.size()[:-2] + (self.all_head_size,) + context_layer = context_layer.view(*new_context_layer_shape) + + outputs = (context_layer, attention_probs) if output_attentions else (context_layer,) + + outputs = outputs + (past_key_value,) + return outputs + + +# Copied from transformers.models.bert.modeling_bert.BertSelfOutput with Bert->InstructBlipQFormer +class InstructBlipQFormerSelfOutput(nn.Module): + def __init__(self, config): + super().__init__() + self.dense = nn.Linear(config.hidden_size, config.hidden_size) + self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.dropout = nn.Dropout(config.hidden_dropout_prob) + + def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor: + hidden_states = self.dense(hidden_states) + hidden_states = self.dropout(hidden_states) + hidden_states = self.LayerNorm(hidden_states + input_tensor) + return hidden_states + + +# Copied from transformers.models.blip_2.modeling_blip_2.Blip2QFormerAttention with Blip2->InstructBlip +class InstructBlipQFormerAttention(nn.Module): + def __init__(self, config, is_cross_attention=False): + super().__init__() + self.attention = InstructBlipQFormerMultiHeadAttention(config, is_cross_attention) + self.output = InstructBlipQFormerSelfOutput(config) + self.pruned_heads = set() + + def prune_heads(self, heads): + if len(heads) == 0: + return + heads, index = find_pruneable_heads_and_indices( + heads, self.attention.num_attention_heads, self.attention.attention_head_size, self.pruned_heads + ) + + # Prune linear layers + self.attention.query = prune_linear_layer(self.attention.query, index) + self.attention.key = prune_linear_layer(self.attention.key, index) + self.attention.value = prune_linear_layer(self.attention.value, index) + self.output.dense = prune_linear_layer(self.output.dense, index, dim=1) + + # Update hyper params and store pruned heads + self.attention.num_attention_heads = self.attention.num_attention_heads - len(heads) + self.attention.all_head_size = self.attention.attention_head_size * self.attention.num_attention_heads + self.pruned_heads = self.pruned_heads.union(heads) + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.FloatTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + encoder_hidden_states: Optional[torch.FloatTensor] = None, + encoder_attention_mask: Optional[torch.FloatTensor] = None, + past_key_value: Optional[Tuple[Tuple[torch.FloatTensor]]] = None, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.Tensor]: + self_outputs = self.attention( + hidden_states, + attention_mask, + head_mask, + encoder_hidden_states, + encoder_attention_mask, + past_key_value, + output_attentions, + ) + attention_output = self.output(self_outputs[0], hidden_states) + outputs = (attention_output,) + self_outputs[1:] # add attentions if we output them + return outputs + + +# Copied from transformers.models.bert.modeling_bert.BertIntermediate with Bert->InstructBlipQFormer +class InstructBlipQFormerIntermediate(nn.Module): + def __init__(self, config): + super().__init__() + self.dense = nn.Linear(config.hidden_size, config.intermediate_size) + if isinstance(config.hidden_act, str): + self.intermediate_act_fn = ACT2FN[config.hidden_act] + else: + self.intermediate_act_fn = config.hidden_act + + def forward(self, hidden_states: torch.Tensor) -> torch.Tensor: + hidden_states = self.dense(hidden_states) + hidden_states = self.intermediate_act_fn(hidden_states) + return hidden_states + + +# Copied from transformers.models.bert.modeling_bert.BertOutput with Bert->InstructBlipQFormer +class InstructBlipQFormerOutput(nn.Module): + def __init__(self, config): + super().__init__() + self.dense = nn.Linear(config.intermediate_size, config.hidden_size) + self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.dropout = nn.Dropout(config.hidden_dropout_prob) + + def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor: + hidden_states = self.dense(hidden_states) + hidden_states = self.dropout(hidden_states) + hidden_states = self.LayerNorm(hidden_states + input_tensor) + return hidden_states + + +class InstructBlipQFormerLayer(nn.Module): + def __init__(self, config, layer_idx): + super().__init__() + self.chunk_size_feed_forward = config.chunk_size_feed_forward + self.seq_len_dim = 1 + self.attention = InstructBlipQFormerAttention(config) + + self.layer_idx = layer_idx + + if layer_idx % config.cross_attention_frequency == 0: + self.crossattention = InstructBlipQFormerAttention(config, is_cross_attention=True) + self.has_cross_attention = True + else: + self.has_cross_attention = False + + self.intermediate = InstructBlipQFormerIntermediate(config) + self.output = InstructBlipQFormerOutput(config) + + self.intermediate_query = InstructBlipQFormerIntermediate(config) + self.output_query = InstructBlipQFormerOutput(config) + + def forward( + self, + hidden_states, + attention_mask=None, + head_mask=None, + encoder_hidden_states=None, + encoder_attention_mask=None, + past_key_value=None, + output_attentions=False, + query_length=0, + ): + # decoder uni-directional self-attention cached key/values tuple is at positions 1,2 + self_attn_past_key_value = past_key_value[:2] if past_key_value is not None else None + self_attention_outputs = self.attention( + hidden_states, + attention_mask, + head_mask, + output_attentions=output_attentions, + past_key_value=self_attn_past_key_value, + ) + attention_output = self_attention_outputs[0] + outputs = self_attention_outputs[1:-1] + + present_key_value = self_attention_outputs[-1] + + if query_length > 0: + query_attention_output = attention_output[:, :query_length, :] + + if self.has_cross_attention: + if encoder_hidden_states is None: + raise ValueError("encoder_hidden_states must be given for cross-attention layers") + cross_attention_outputs = self.crossattention( + query_attention_output, + attention_mask, + head_mask, + encoder_hidden_states, + encoder_attention_mask, + output_attentions=output_attentions, + ) + query_attention_output = cross_attention_outputs[0] + # add cross attentions if we output attention weights + outputs = outputs + cross_attention_outputs[1:-1] + + layer_output = apply_chunking_to_forward( + self.feed_forward_chunk_query, + self.chunk_size_feed_forward, + self.seq_len_dim, + query_attention_output, + ) + + if attention_output.shape[1] > query_length: + layer_output_text = apply_chunking_to_forward( + self.feed_forward_chunk, + self.chunk_size_feed_forward, + self.seq_len_dim, + attention_output[:, query_length:, :], + ) + layer_output = torch.cat([layer_output, layer_output_text], dim=1) + else: + layer_output = apply_chunking_to_forward( + self.feed_forward_chunk, + self.chunk_size_feed_forward, + self.seq_len_dim, + attention_output, + ) + outputs = (layer_output,) + outputs + + outputs = outputs + (present_key_value,) + + return outputs + + def feed_forward_chunk(self, attention_output): + intermediate_output = self.intermediate(attention_output) + layer_output = self.output(intermediate_output, attention_output) + return layer_output + + def feed_forward_chunk_query(self, attention_output): + intermediate_output = self.intermediate_query(attention_output) + layer_output = self.output_query(intermediate_output, attention_output) + return layer_output + + +# Copied from transformers.models.blip_2.modeling_blip_2.Blip2QFormerEncoder with Blip2->InstructBlip +class InstructBlipQFormerEncoder(nn.Module): + def __init__(self, config): + super().__init__() + self.config = config + self.layer = nn.ModuleList( + [InstructBlipQFormerLayer(config, layer_idx) for layer_idx in range(config.num_hidden_layers)] + ) + self.gradient_checkpointing = False + + def forward( + self, + hidden_states, + attention_mask=None, + head_mask=None, + encoder_hidden_states=None, + encoder_attention_mask=None, + past_key_values=None, + use_cache=None, + output_attentions=False, + output_hidden_states=False, + return_dict=True, + query_length=0, + ): + all_hidden_states = () if output_hidden_states else None + all_self_attentions = () if output_attentions else None + all_cross_attentions = () if output_attentions else None + + next_decoder_cache = () if use_cache else None + + for i in range(self.config.num_hidden_layers): + layer_module = self.layer[i] + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + layer_head_mask = head_mask[i] if head_mask is not None else None + past_key_value = past_key_values[i] if past_key_values is not None else None + + if getattr(self.config, "gradient_checkpointing", False) and self.training: + if use_cache: + logger.warning( + "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..." + ) + use_cache = False + layer_outputs = self._gradient_checkpointing_func( + layer_module.__call__, + hidden_states, + attention_mask, + layer_head_mask, + encoder_hidden_states, + encoder_attention_mask, + ) + else: + layer_outputs = layer_module( + hidden_states, + attention_mask, + layer_head_mask, + encoder_hidden_states, + encoder_attention_mask, + past_key_value, + output_attentions, + query_length, + ) + + hidden_states = layer_outputs[0] + if use_cache: + next_decoder_cache += (layer_outputs[-1],) + if output_attentions: + all_self_attentions = all_self_attentions + (layer_outputs[1],) + if layer_module.has_cross_attention: + all_cross_attentions = all_cross_attentions + (layer_outputs[2],) + + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + if not return_dict: + return tuple( + v + for v in [ + hidden_states, + next_decoder_cache, + all_hidden_states, + all_self_attentions, + all_cross_attentions, + ] + if v is not None + ) + return BaseModelOutputWithPastAndCrossAttentions( + last_hidden_state=hidden_states, + past_key_values=next_decoder_cache, + hidden_states=all_hidden_states, + attentions=all_self_attentions, + cross_attentions=all_cross_attentions, + ) + + +class InstructBlipQFormerEmbeddings(nn.Module): + """Construct the embeddings from word and position embeddings.""" + + def __init__(self, config): + super().__init__() + self.word_embeddings = nn.Embedding(config.vocab_size, config.hidden_size, padding_idx=config.pad_token_id) + self.position_embeddings = nn.Embedding(config.max_position_embeddings, config.hidden_size) + + self.layernorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.dropout = nn.Dropout(config.hidden_dropout_prob) + + # position_ids (1, len position emb) is contiguous in memory and exported when serialized + self.register_buffer( + "position_ids", torch.arange(config.max_position_embeddings).expand((1, -1)), persistent=False + ) + self.position_embedding_type = getattr(config, "position_embedding_type", "absolute") + + self.config = config + + def forward( + self, + input_ids=None, + position_ids=None, + query_embeds=None, + past_key_values_length=0, + ): + if input_ids is not None: + seq_length = input_ids.size()[1] + else: + seq_length = 0 + + if position_ids is None: + position_ids = self.position_ids[:, past_key_values_length : seq_length + past_key_values_length].clone() + + if input_ids is not None: + embeddings = self.word_embeddings(input_ids) + if self.position_embedding_type == "absolute": + position_embeddings = self.position_embeddings(position_ids.to(embeddings.device)) + embeddings = embeddings + position_embeddings + + if query_embeds is not None: + embeddings = torch.cat((query_embeds, embeddings), dim=1) + else: + embeddings = query_embeds + + embeddings = embeddings.to(self.layernorm.weight.dtype) + embeddings = self.layernorm(embeddings) + embeddings = self.dropout(embeddings) + return embeddings + + +class InstructBlipQFormerModel(InstructBlipPreTrainedModel): + """ + Querying Transformer (Q-Former), used in InstructBLIP. Slightly modified from BLIP-2 as it also takes the + instruction as input. + """ + + def __init__(self, config: InstructBlipQFormerConfig): + super().__init__(config) + self.config = config + + self.embeddings = InstructBlipQFormerEmbeddings(config) + + self.encoder = InstructBlipQFormerEncoder(config) + + self.post_init() + + def get_input_embeddings(self): + return self.embeddings.word_embeddings + + def set_input_embeddings(self, value): + self.embeddings.word_embeddings = value + + def _prune_heads(self, heads_to_prune): + """ + Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base + class PreTrainedModel + """ + for layer, heads in heads_to_prune.items(): + self.encoder.layer[layer].attention.prune_heads(heads) + + def get_extended_attention_mask( + self, + attention_mask: torch.Tensor, + input_shape: Tuple[int], + device: torch.device, + has_query: bool = False, + ) -> torch.Tensor: + """ + Makes broadcastable attention and causal masks so that future and masked tokens are ignored. + + Arguments: + attention_mask (`torch.Tensor`): + Mask with ones indicating tokens to attend to, zeros for tokens to ignore. + input_shape (`Tuple[int]`): + The shape of the input to the model. + device: (`torch.device`): + The device of the input to the model. + + Returns: + `torch.Tensor` The extended attention mask, with a the same dtype as `attention_mask.dtype`. + """ + # We can provide a self-attention mask of dimensions [batch_size, from_seq_length, to_seq_length] + # ourselves in which case we just need to make it broadcastable to all heads. + if attention_mask.dim() == 3: + extended_attention_mask = attention_mask[:, None, :, :] + elif attention_mask.dim() == 2: + # Provided a padding mask of dimensions [batch_size, seq_length] + # - the model is an encoder, so make the mask broadcastable to [batch_size, num_heads, seq_length, seq_length] + extended_attention_mask = attention_mask[:, None, None, :] + else: + raise ValueError( + f"Wrong shape for input_ids (shape {input_shape}) or attention_mask (shape {attention_mask.shape})", + ) + + # Since attention_mask is 1.0 for positions we want to attend and 0.0 for + # masked positions, this operation will create a tensor which is 0.0 for + # positions we want to attend and -10000.0 for masked positions. + # Since we are adding it to the raw scores before the softmax, this is + # effectively the same as removing these entirely. + extended_attention_mask = extended_attention_mask.to(dtype=self.dtype) # fp16 compatibility + extended_attention_mask = (1.0 - extended_attention_mask) * -10000.0 + return extended_attention_mask + + def forward( + self, + input_ids: torch.LongTensor, + attention_mask: Optional[torch.FloatTensor] = None, + position_ids: Optional[torch.LongTensor] = None, + query_embeds: Optional[torch.Tensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + encoder_hidden_states: Optional[torch.FloatTensor] = None, + encoder_attention_mask: Optional[torch.FloatTensor] = None, + past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple[torch.FloatTensor], BaseModelOutputWithPoolingAndCrossAttentions]: + r""" + encoder_hidden_states (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Sequence of hidden-states at the output of the last layer of the encoder. Used in the cross-attention if + the model is configured as a decoder. + encoder_attention_mask (`torch.FloatTensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on the padding token indices of the encoder input. This mask is used in + the cross-attention if the model is configured as a decoder. Mask values selected in `[0, 1]`: + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + past_key_values (`tuple(tuple(torch.FloatTensor))` of length `config.n_layers` with each tuple having 4 tensors of: + shape `(batch_size, num_heads, sequence_length - 1, embed_size_per_head)`): Contains precomputed key and + value hidden states of the attention blocks. Can be used to speed up decoding. If `past_key_values` are + used, the user can optionally input only the last `decoder_input_ids` (those that don't have their past key + value states given to this model) of shape `(batch_size, 1)` instead of all `decoder_input_ids` of shape + `(batch_size, sequence_length)`. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if input_ids is None and query_embeds is None: + raise ValueError("You have to specify query_embeds when input_ids is None") + + # past_key_values_length + past_key_values_length = ( + past_key_values[0][0].shape[2] - self.config.query_length if past_key_values is not None else 0 + ) + + query_length = query_embeds.shape[1] if query_embeds is not None else 0 + + embedding_output = self.embeddings( + input_ids=input_ids, + position_ids=position_ids, + query_embeds=query_embeds, + past_key_values_length=past_key_values_length, + ) + + input_shape = embedding_output.size()[:-1] + batch_size, seq_length = input_shape + device = embedding_output.device + + if attention_mask is None: + attention_mask = torch.ones(((batch_size, seq_length + past_key_values_length)), device=device) + + # We can provide a self-attention mask of dimensions [batch_size, from_seq_length, to_seq_length] + # ourselves in which case we just need to make it broadcastable to all heads. + extended_attention_mask = self.get_extended_attention_mask(attention_mask, input_shape, device) + + # If a 2D or 3D attention mask is provided for the cross-attention + # we need to make broadcastable to [batch_size, num_heads, seq_length, seq_length] + if encoder_hidden_states is not None: + if isinstance(encoder_hidden_states, list): + encoder_batch_size, encoder_sequence_length, _ = encoder_hidden_states[0].size() + else: + encoder_batch_size, encoder_sequence_length, _ = encoder_hidden_states.size() + encoder_hidden_shape = (encoder_batch_size, encoder_sequence_length) + + if isinstance(encoder_attention_mask, list): + encoder_extended_attention_mask = [self.invert_attention_mask(mask) for mask in encoder_attention_mask] + elif encoder_attention_mask is None: + encoder_attention_mask = torch.ones(encoder_hidden_shape, device=device) + encoder_extended_attention_mask = self.invert_attention_mask(encoder_attention_mask) + else: + encoder_extended_attention_mask = self.invert_attention_mask(encoder_attention_mask) + else: + encoder_extended_attention_mask = None + + # Prepare head mask if needed + # 1.0 in head_mask indicate we keep the head + # attention_probs has shape bsz x n_heads x N x N + # input head_mask has shape [num_heads] or [num_hidden_layers x num_heads] + # and head_mask is converted to shape [num_hidden_layers x batch x num_heads x seq_length x seq_length] + head_mask = self.get_head_mask(head_mask, self.config.num_hidden_layers) + + encoder_outputs = self.encoder( + embedding_output, + attention_mask=extended_attention_mask, + head_mask=head_mask, + encoder_hidden_states=encoder_hidden_states, + encoder_attention_mask=encoder_extended_attention_mask, + past_key_values=past_key_values, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + query_length=query_length, + ) + sequence_output = encoder_outputs[0] + pooled_output = sequence_output[:, 0, :] + + if not return_dict: + return (sequence_output, pooled_output) + encoder_outputs[1:] + + return BaseModelOutputWithPoolingAndCrossAttentions( + last_hidden_state=sequence_output, + pooler_output=pooled_output, + past_key_values=encoder_outputs.past_key_values, + hidden_states=encoder_outputs.hidden_states, + attentions=encoder_outputs.attentions, + cross_attentions=encoder_outputs.cross_attentions, + ) + + +@add_start_docstrings( + """ + InstructBLIP Model for generating text given an image and an optional text prompt. The model consists of a vision + encoder, Querying Transformer (Q-Former) and a language model. + + One can optionally pass `input_ids` to the model, which serve as a text prompt, to make the language model continue + the prompt. Otherwise, the language model starts generating text from the [BOS] (beginning-of-sequence) token. + """, + INSTRUCTBLIP_START_DOCSTRING, +) +class InstructBlipForConditionalGeneration(InstructBlipPreTrainedModel, GenerationMixin): + config_class = InstructBlipConfig + main_input_name = "pixel_values" + _supports_cache_class = True + _supports_static_cache = True + _supports_quantized_cache = False # not all LM bacbones support (e.g. T5) + _keep_in_fp32_modules = ["query_tokens"] # TODO @ArthurZucker I don't know why this is required for FP8 + + def __init__(self, config: InstructBlipConfig): + super().__init__(config) + + self.vision_model = InstructBlipVisionModel(config.vision_config) + + self.query_tokens = nn.Parameter(torch.zeros(1, config.num_query_tokens, config.qformer_config.hidden_size)) + self.qformer = InstructBlipQFormerModel(config.qformer_config) + + self.language_projection = nn.Linear(config.qformer_config.hidden_size, config.text_config.hidden_size) + + if config.use_decoder_only_language_model: + language_model = AutoModelForCausalLM.from_config(config.text_config) + else: + language_model = AutoModelForSeq2SeqLM.from_config(config.text_config) + + if language_model._no_split_modules is not None: + self._no_split_modules.extend(language_model._no_split_modules) + + if language_model._keep_in_fp32_modules is not None: + self._keep_in_fp32_modules.extend(language_model._keep_in_fp32_modules) + + self.language_model = language_model + + # Initialize weights and apply final processing + self.post_init() + + def get_input_embeddings(self): + return self.language_model.get_input_embeddings() + + def set_input_embeddings(self, value): + self.language_model.set_input_embeddings(value) + + def set_output_embeddings(self, new_embeddings): + self.language_model.set_output_embeddings(new_embeddings) + + def get_output_embeddings(self) -> nn.Module: + return self.language_model.get_output_embeddings() + + def get_encoder(self): + return self.language_model.get_encoder() + + def get_decoder(self): + return self.language_model.get_decoder() + + def _tie_weights(self): + if not self.config.use_decoder_only_language_model: + self.language_model.encoder.embed_tokens = self.language_model.shared + self.language_model.decoder.embed_tokens = self.language_model.shared + + def _preprocess_accelerate(self): + r""" + Some pre-processing hacks to make the model `accelerate` compatible. Check + https://github.com/huggingface/transformers/pull/21707 for more details. + """ + hf_device_map = self.hf_device_map + + if len(hf_device_map) > 1 and "language_model" not in hf_device_map and torch.cuda.device_count() > 1: + # warn users about unexpected behavior when using multi-GPU + InstructBLIP + `accelerate`. + logger.warning( + "The `language_model` is not in the `hf_device_map` dictionary and you are running your script" + " in a multi-GPU environment. this may lead to unexpected behavior when using `accelerate`." + " Please pass a `device_map` that contains `language_model` to remove this warning." + " Please refer to https://github.com/huggingface/blog/blob/main/accelerate-large-models.md for" + " more details on creating a `device_map` for large models.", + ) + + if hasattr(self.language_model, "_hf_hook"): + self.language_model._hf_hook.io_same_device = True # For `generate` compatibility + + @add_start_docstrings_to_model_forward(INSTRUCTBLIP_INPUTS_DOCSTRING) + @replace_return_docstrings( + output_type=InstructBlipForConditionalGenerationModelOutput, config_class=InstructBlipVisionConfig + ) + def forward( + self, + pixel_values: torch.FloatTensor, + qformer_input_ids: torch.FloatTensor, + qformer_attention_mask: Optional[torch.LongTensor] = None, + input_ids: Optional[torch.FloatTensor] = None, + attention_mask: Optional[torch.LongTensor] = None, + decoder_input_ids: Optional[torch.LongTensor] = None, + decoder_attention_mask: Optional[torch.LongTensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + labels: Optional[torch.LongTensor] = None, + return_dict: Optional[bool] = None, + interpolate_pos_encoding: bool = False, + use_cache: Optional[bool] = None, + ) -> Union[Tuple, InstructBlipForConditionalGenerationModelOutput]: + r""" + labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*): + Labels for computing the language modeling loss. Indices should be in `[-100, 0, ..., config.vocab_size - + 1]`. All labels set to `-100` are ignored (masked), the loss is only computed for labels in `[0, ..., + config.vocab_size]` + + Returns: + + Examples: + + ```python + >>> from transformers import InstructBlipProcessor, InstructBlipForConditionalGeneration + >>> import torch + >>> from PIL import Image + >>> import requests + + >>> model = InstructBlipForConditionalGeneration.from_pretrained("Salesforce/instructblip-vicuna-7b") + >>> processor = InstructBlipProcessor.from_pretrained("Salesforce/instructblip-vicuna-7b") + + >>> device = "cuda" if torch.cuda.is_available() else "cpu" + >>> model.to(device) # doctest: +IGNORE_RESULT + + >>> url = "https://raw.githubusercontent.com/salesforce/LAVIS/main/docs/_static/Confusing-Pictures.jpg" + >>> image = Image.open(requests.get(url, stream=True).raw).convert("RGB") + >>> prompt = "What is unusual about this image?" + >>> inputs = processor(images=image, text=prompt, return_tensors="pt").to(device) + + >>> outputs = model.generate( + ... **inputs, + ... do_sample=False, + ... num_beams=5, + ... max_length=256, + ... min_length=1, + ... top_p=0.9, + ... repetition_penalty=1.5, + ... length_penalty=1.0, + ... temperature=1, + ... ) + >>> generated_text = processor.batch_decode(outputs, skip_special_tokens=True)[0].strip() + >>> print(generated_text) + The unusual aspect of this image is that a man is ironing clothes on the back of a yellow SUV, which is parked in the middle of a busy city street. This is an unconventional approach to ironing clothes, as it requires the man to balance himself and his ironing equipment on top of the vehicle while navigating through traffic. Additionally, the presence of taxis and other vehicles in the scene further emphasizes the unusual nature of this situation. + ```""" + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + # step 1: forward the images through the vision encoder, + # to get image embeddings of shape (batch_size, seq_len, hidden_size) + vision_outputs = self.vision_model( + pixel_values=pixel_values, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + interpolate_pos_encoding=interpolate_pos_encoding, + ) + image_embeds = vision_outputs[0] + + # step 2: forward the query tokens through the QFormer, using the image embeddings for cross-attention + image_attention_mask = torch.ones(image_embeds.size()[:-1], dtype=torch.long, device=image_embeds.device) + + # difference with BLIP-2 here: we also feed the instruction prompt to the Q-Former + query_tokens = self.query_tokens.expand(image_embeds.shape[0], -1, -1) + query_attention_mask = torch.ones(query_tokens.size()[:-1], dtype=torch.long, device=image_embeds.device) + if qformer_attention_mask is None: + qformer_attention_mask = torch.ones_like(qformer_input_ids) + qformer_attention_mask = torch.cat([query_attention_mask, qformer_attention_mask], dim=1) + query_outputs = self.qformer( + input_ids=qformer_input_ids, + attention_mask=qformer_attention_mask, + query_embeds=query_tokens, + encoder_hidden_states=image_embeds, + encoder_attention_mask=image_attention_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + query_output = query_outputs[0][:, : query_tokens.size(1), :] + + # step 3: use the language model, conditioned on the query outputs and the prompt + language_model_inputs = self.language_projection(query_output) + language_model_attention_mask = torch.ones( + language_model_inputs.size()[:-1], dtype=torch.long, device=language_model_inputs.device + ) + + inputs_embeds = self.language_model.get_input_embeddings()(input_ids) + if attention_mask is None: + attention_mask = torch.ones_like(input_ids) + + # if the model already has "image_token_index" then the input is expanded to account for image embeds + # otherwise we expand manually by concatenating + if getattr(self.config, "image_token_index", None) is not None: + special_image_mask = (input_ids == self.config.image_token_index).unsqueeze(-1).expand_as(inputs_embeds) + inputs_embeds[special_image_mask] = language_model_inputs.flatten() + else: + logger.warning_once( + "Expanding inputs for image tokens in InstructBLIP should be done in processing. " + "Please follow instruction here (https://gist.github.com/zucchini-nlp/e9f20b054fa322f84ac9311d9ab67042) to update your InstructBLIP model. " + "Using processors without these attributes in the config is deprecated and will throw an error in v4.50." + ) + inputs_embeds = torch.cat([language_model_inputs, inputs_embeds.to(language_model_inputs.device)], dim=1) + attention_mask = torch.cat( + [language_model_attention_mask, attention_mask.to(language_model_attention_mask.device)], dim=1 + ) + + if self.config.use_decoder_only_language_model: + outputs = self.language_model( + inputs_embeds=inputs_embeds, + attention_mask=attention_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + use_cache=use_cache, + ) + logits = outputs.logits if return_dict else outputs[0] + loss = None + # we compute the loss here since we need to take into account the sequence length of the query embeds + if labels is not None: + labels = labels.to(logits.device) + logits = logits[:, -labels.size(1) :, :] + # Shift so that tokens < n predict n + shift_logits = logits[..., :-1, :].contiguous() + shift_labels = labels[..., 1:].contiguous().to(logits.device) + + # Flatten the tokens + loss_fct = CrossEntropyLoss(reduction="mean") + + loss = loss_fct(shift_logits.view(-1, self.config.text_config.vocab_size), shift_labels.view(-1)) + else: + outputs = self.language_model( + inputs_embeds=inputs_embeds, + attention_mask=attention_mask, + decoder_input_ids=decoder_input_ids, + decoder_attention_mask=decoder_attention_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + labels=labels, + use_cache=use_cache, + ) + loss = outputs.loss if return_dict else outputs[0] + logits = outputs.logits if return_dict else outputs[1] + + if not return_dict: + output = (logits, vision_outputs, query_outputs, outputs) + return ((loss,) + output) if loss is not None else output + + return InstructBlipForConditionalGenerationModelOutput( + loss=loss, + logits=logits, + vision_outputs=vision_outputs, + qformer_outputs=query_outputs, + language_model_outputs=outputs, + ) + + @torch.no_grad() + def generate( + self, + pixel_values: torch.FloatTensor, + qformer_input_ids: Optional[torch.LongTensor] = None, + qformer_attention_mask: Optional[torch.LongTensor] = None, + input_ids: Optional[torch.LongTensor] = None, + attention_mask: Optional[torch.LongTensor] = None, + interpolate_pos_encoding: bool = False, + **generate_kwargs, + ) -> torch.LongTensor: + """ + Overrides `generate` function to be able to use the model as a conditional generator. + + Args: + pixel_values (`torch.FloatTensor` of shape (batch_size, num_channels, height, width)): + Input images to be processed. + qformer_input_ids (`torch.LongTensor` of shape (batch_size, sequence_length), *optional*): + The sequence used as a prompt to be fed to the Q-Former module. + qformer_attention_mask (`torch.LongTensor` of shape (batch_size, sequence_length), *optional*): + Mask to avoid performing attention on padding token indices. + input_ids (`torch.LongTensor` of shape (batch_size, sequence_length), *optional*): + The sequence used as a prompt for the generation. + attention_mask (`torch.LongTensor` of shape (batch_size, sequence_length), *optional*): + Mask to avoid performing attention on padding token indices. + interpolate_pos_encoding (`bool`, *optional*, defaults to `False`): + Whether to interpolate the positional encoding of the image embeddings. + + Returns: + captions (list): A list of strings of length batch_size * num_captions. + """ + if hasattr(self, "hf_device_map"): + # preprocess for `accelerate` + self._preprocess_accelerate() + + batch_size = pixel_values.shape[0] + image_embeds = self.vision_model( + pixel_values, + return_dict=True, + interpolate_pos_encoding=interpolate_pos_encoding, + ).last_hidden_state + + image_attention_mask = torch.ones(image_embeds.size()[:-1], dtype=torch.long, device=image_embeds.device) + + query_tokens = self.query_tokens.expand(image_embeds.shape[0], -1, -1) + query_attention_mask = torch.ones(query_tokens.size()[:-1], dtype=torch.long, device=image_embeds.device) + if qformer_attention_mask is None: + qformer_attention_mask = torch.ones_like(qformer_input_ids) + qformer_attention_mask = torch.cat([query_attention_mask, qformer_attention_mask], dim=1) + query_outputs = self.qformer( + input_ids=qformer_input_ids, + attention_mask=qformer_attention_mask, + query_embeds=query_tokens, + encoder_hidden_states=image_embeds, + encoder_attention_mask=image_attention_mask, + return_dict=True, + ) + query_output = query_outputs.last_hidden_state[:, : query_tokens.size(1), :] + + language_model_inputs = self.language_projection(query_output) + language_attention_mask = torch.ones( + language_model_inputs.size()[:-1], dtype=torch.long, device=language_model_inputs.device + ) + + if input_ids is None: + start_tokens = [self.config.text_config.bos_token_id] + if getattr(self.config, "image_token_index", None) is not None: + start_tokens = [self.config.image_token_index] * self.config.num_query_tokens + start_tokens + input_ids = torch.tensor([start_tokens], dtype=torch.long, device=image_embeds.device) + input_ids = input_ids.repeat(batch_size, 1) + + if attention_mask is None: + attention_mask = torch.ones_like(input_ids) + + inputs_embeds = self.get_input_embeddings()(input_ids) + + # if the model already has "image_token_index" then the input is expanded to account for image embeds + # otherwise we expand manually by concatenating + if getattr(self.config, "image_token_index", None) is not None: + special_image_mask = (input_ids == self.config.image_token_index).unsqueeze(-1).expand_as(inputs_embeds) + inputs_embeds[special_image_mask] = language_model_inputs.flatten().to(inputs_embeds.device) + else: + logger.warning_once( + "Expanding inputs for image tokens in InstructBLIP should be done in processing. " + "Please follow instruction here (https://gist.github.com/zucchini-nlp/e9f20b054fa322f84ac9311d9ab67042) to update your InstructBLIP model. " + "Using processors without these attributes in the config is deprecated and will throw an error in v4.50." + ) + inputs_embeds = torch.cat([language_model_inputs, inputs_embeds.to(language_model_inputs.device)], dim=1) + attention_mask = torch.cat( + [language_attention_mask, attention_mask.to(language_attention_mask.device)], dim=1 + ) + + # add image_embeds length to max_length, so that the final max_length in counted only on token embeds + # -1 is to account for the prepended BOS after `generate.` + if not self.language_model.config.is_encoder_decoder: + generate_kwargs["max_length"] = ( + generate_kwargs.get("max_length", 20) + language_model_inputs.shape[1] - 1 + ) + generate_kwargs["min_length"] = generate_kwargs.get("min_length", 0) + language_model_inputs.shape[1] + + inputs = {"inputs_embeds": inputs_embeds, "attention_mask": attention_mask} + if not self.language_model.config.is_encoder_decoder: + inputs["input_ids"] = input_ids + + outputs = self.language_model.generate(**inputs, **generate_kwargs) + + return outputs + + +__all__ = [ + "InstructBlipQFormerModel", + "InstructBlipPreTrainedModel", + "InstructBlipForConditionalGeneration", + "InstructBlipVisionModel", +] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/processing_instructblip.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/processing_instructblip.py new file mode 100644 index 0000000000000000000000000000000000000000..408dfbd07565d0db8c3776bf100d231d2df997db --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblip/processing_instructblip.py @@ -0,0 +1,223 @@ +# coding=utf-8 +# Copyright 2023 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Processor class for InstructBLIP. Largely copy of Blip2Processor with addition of a tokenizer for the Q-Former. +""" + +import os +from typing import List, Union + +from ...image_processing_utils import BatchFeature +from ...image_utils import ImageInput +from ...processing_utils import ProcessingKwargs, ProcessorMixin, Unpack +from ...tokenization_utils_base import ( + AddedToken, + BatchEncoding, + PreTokenizedInput, + TextInput, +) +from ...utils import logging +from ..auto import AutoTokenizer + + +logger = logging.get_logger(__name__) + + +class InstructBlipProcessorKwargs(ProcessingKwargs, total=False): + _defaults = { + "text_kwargs": { + "add_special_tokens": True, + "padding": False, + "stride": 0, + "return_overflowing_tokens": False, + "return_special_tokens_mask": False, + "return_offsets_mapping": False, + "return_token_type_ids": False, + "return_length": False, + "verbose": True, + }, + "images_kwargs": {}, + } + + +class InstructBlipProcessor(ProcessorMixin): + r""" + Constructs an InstructBLIP processor which wraps a BLIP image processor and a LLaMa/T5 tokenizer into a single + processor. + + [`InstructBlipProcessor`] offers all the functionalities of [`BlipImageProcessor`] and [`AutoTokenizer`]. See the + docstring of [`~BlipProcessor.__call__`] and [`~BlipProcessor.decode`] for more information. + + Args: + image_processor (`BlipImageProcessor`): + An instance of [`BlipImageProcessor`]. The image processor is a required input. + tokenizer (`AutoTokenizer`): + An instance of ['PreTrainedTokenizer`]. The tokenizer is a required input. + qformer_tokenizer (`AutoTokenizer`): + An instance of ['PreTrainedTokenizer`]. The Q-Former tokenizer is a required input. + num_query_tokens (`int`, *optional*):" + Number of tokens used by the Qformer as queries, should be same as in model's config. + """ + + attributes = ["image_processor", "tokenizer", "qformer_tokenizer"] + valid_kwargs = ["num_query_tokens"] + image_processor_class = ("BlipImageProcessor", "BlipImageProcessorFast") + tokenizer_class = "AutoTokenizer" + qformer_tokenizer_class = "AutoTokenizer" + + def __init__(self, image_processor, tokenizer, qformer_tokenizer, num_query_tokens=None, **kwargs): + if not hasattr(tokenizer, "image_token"): + self.image_token = AddedToken("", normalized=False, special=True) + tokenizer.add_tokens([self.image_token], special_tokens=True) + else: + self.image_token = tokenizer.image_token + self.num_query_tokens = num_query_tokens + super().__init__(image_processor, tokenizer, qformer_tokenizer) + + def __call__( + self, + images: ImageInput = None, + text: Union[TextInput, PreTokenizedInput, List[TextInput], List[PreTokenizedInput]] = None, + audio=None, + videos=None, + **kwargs: Unpack[InstructBlipProcessorKwargs], + ) -> BatchFeature: + """ + This method uses [`BlipImageProcessor.__call__`] method to prepare image(s) for the model, and + [`BertTokenizerFast.__call__`] to prepare text for the model. + + Please refer to the docstring of the above two methods for more information. + Args: + images (`ImageInput`): + The image or batch of images to be prepared. Each image can be a PIL image, NumPy array or PyTorch + tensor. Both channels-first and channels-last formats are supported. + text (`TextInput`, `PreTokenizedInput`, `List[TextInput]`, `List[PreTokenizedInput]`): + The sequence or batch of sequences to be encoded. Each sequence can be a string or a list of strings + (pretokenized string). If the sequences are provided as list of strings (pretokenized), you must set + `is_split_into_words=True` (to lift the ambiguity with a batch of sequences). + """ + if images is None and text is None: + raise ValueError("You have to specify at least images or text.") + + output_kwargs = self._merge_kwargs( + InstructBlipProcessorKwargs, + tokenizer_init_kwargs=self.tokenizer.init_kwargs, + **kwargs, + ) + + encoding = BatchFeature() + + if text is not None: + if isinstance(text, str): + text = [text] + elif not isinstance(text, list) and not isinstance(text[0], str): + raise ValueError("Invalid input text. Please provide a string, or a list of strings") + + # we have to concatenate lists - so we keep track of return_tensors here + return_tensors = output_kwargs["text_kwargs"].pop("return_tensors", None) + _text_encoding = self.tokenizer(text, **output_kwargs["text_kwargs"], return_tensors=None) + output_kwargs["text_kwargs"]["return_tensors"] = return_tensors + # if we know how many query tokens, expand text inside processor. We need this hacky manipulation + # because BLIP expects image tokens to be at the beginning even before BOS token + if self.num_query_tokens is not None and images is not None: + text_encoding = {} + image_tokens = self.image_token.content * self.num_query_tokens + image_token_encoding = self.tokenizer( + [image_tokens] * len(text), add_special_tokens=False, return_tensors=None + ) + for k in _text_encoding: + text_encoding[k] = [ + img_encoding + txt_encoding + for img_encoding, txt_encoding in zip(image_token_encoding[k], _text_encoding[k]) + ] + else: + text_encoding = _text_encoding + if images is not None: + logger.warning_once( + "Expanding inputs for image tokens in InstructBLIP should be done in processing. " + "Please follow instruction here (https://gist.github.com/zucchini-nlp/e9f20b054fa322f84ac9311d9ab67042) to update your InstructBLIP model. " + "Using processors without these attributes in the config is deprecated and will throw an error in v4.50." + ) + + # cast to desired return tensors type after concatenating + text_encoding = BatchEncoding(text_encoding, tensor_type=return_tensors) + + encoding.update(text_encoding) + qformer_text_encoding = self.qformer_tokenizer(text, **output_kwargs["text_kwargs"]) + encoding["qformer_input_ids"] = qformer_text_encoding.pop("input_ids") + encoding["qformer_attention_mask"] = qformer_text_encoding.pop("attention_mask") + + if images is not None: + image_encoding = self.image_processor(images, **output_kwargs["images_kwargs"]) + encoding.update(image_encoding) + + return encoding + + # Copied from transformers.models.blip.processing_blip.BlipProcessor.batch_decode with BertTokenizerFast->PreTrainedTokenizer + def batch_decode(self, *args, **kwargs): + """ + This method forwards all its arguments to PreTrainedTokenizer's [`~PreTrainedTokenizer.batch_decode`]. Please + refer to the docstring of this method for more information. + """ + return self.tokenizer.batch_decode(*args, **kwargs) + + # Copied from transformers.models.blip.processing_blip.BlipProcessor.decode with BertTokenizerFast->PreTrainedTokenizer + def decode(self, *args, **kwargs): + """ + This method forwards all its arguments to PreTrainedTokenizer's [`~PreTrainedTokenizer.decode`]. Please refer to + the docstring of this method for more information. + """ + return self.tokenizer.decode(*args, **kwargs) + + @property + # Copied from transformers.models.blip.processing_blip.BlipProcessor.model_input_names + def model_input_names(self): + tokenizer_input_names = self.tokenizer.model_input_names + image_processor_input_names = self.image_processor.model_input_names + return list(dict.fromkeys(tokenizer_input_names + image_processor_input_names)) + + # overwrite to save the Q-Former tokenizer in a separate folder + def save_pretrained(self, save_directory, **kwargs): + if os.path.isfile(save_directory): + raise ValueError(f"Provided path ({save_directory}) should be a directory, not a file") + os.makedirs(save_directory, exist_ok=True) + qformer_tokenizer_path = os.path.join(save_directory, "qformer_tokenizer") + self.qformer_tokenizer.save_pretrained(qformer_tokenizer_path) + + # We modify the attributes so that only the tokenizer and image processor are saved in the main folder + qformer_present = "qformer_tokenizer" in self.attributes + if qformer_present: + self.attributes.remove("qformer_tokenizer") + + outputs = super().save_pretrained(save_directory, **kwargs) + + if qformer_present: + self.attributes += ["qformer_tokenizer"] + return outputs + + # overwrite to load the Q-Former tokenizer from a separate folder + @classmethod + def from_pretrained(cls, pretrained_model_name_or_path, **kwargs): + processor = super().from_pretrained(pretrained_model_name_or_path, **kwargs) + + # if return_unused_kwargs a tuple is returned where the second element is 'unused_kwargs' + if isinstance(processor, tuple): + processor = processor[0] + qformer_tokenizer = AutoTokenizer.from_pretrained(pretrained_model_name_or_path, subfolder="qformer_tokenizer") + processor.qformer_tokenizer = qformer_tokenizer + return processor + + +__all__ = ["InstructBlipProcessor"] diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/__init__.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..18d20d0401501a81abe91be896d78a2258e010df --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/__init__.py @@ -0,0 +1,83 @@ +# Copyright 2024 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +from typing import TYPE_CHECKING + +from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available, is_vision_available + + +_import_structure = { + "configuration_instructblipvideo": [ + "InstructBlipVideoConfig", + "InstructBlipVideoQFormerConfig", + "InstructBlipVideoVisionConfig", + ], + "processing_instructblipvideo": ["InstructBlipVideoProcessor"], +} + + +try: + if not is_vision_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + pass +else: + _import_structure["image_processing_instructblipvideo"] = ["InstructBlipVideoImageProcessor"] + + +try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + pass +else: + _import_structure["modeling_instructblipvideo"] = [ + "InstructBlipVideoQFormerModel", + "InstructBlipVideoPreTrainedModel", + "InstructBlipVideoForConditionalGeneration", + "InstructBlipVideoVisionModel", + ] + +if TYPE_CHECKING: + from .configuration_instructblipvideo import ( + InstructBlipVideoConfig, + InstructBlipVideoQFormerConfig, + InstructBlipVideoVisionConfig, + ) + from .processing_instructblipvideo import InstructBlipVideoProcessor + + try: + if not is_vision_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + pass + else: + from .image_processing_instructblipvideo import InstructBlipVideoImageProcessor + + try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + pass + else: + from .modeling_instructblipvideo import ( + InstructBlipVideoForConditionalGeneration, + InstructBlipVideoPreTrainedModel, + InstructBlipVideoQFormerModel, + InstructBlipVideoVisionModel, + ) + +else: + import sys + + sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__) diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/configuration_instructblipvideo.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/configuration_instructblipvideo.py new file mode 100644 index 0000000000000000000000000000000000000000..6776c1b62b88523e0482aa010b64764197693d61 --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/configuration_instructblipvideo.py @@ -0,0 +1,339 @@ +# 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 +# This file was automatically generated from src/transformers/models/instructblipvideo/modular_instructblipvideo.py. +# Do NOT edit this file manually as any edits will be overwritten by the generation of +# the file from the modular. If any change should be done, please apply the change to the +# modular_instructblipvideo.py file directly. One of our CI enforces this. +# 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 +# coding=utf-8 +# Copyright 2024 HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + + +from ...configuration_utils import PretrainedConfig +from ...models.auto.modeling_auto import MODEL_FOR_CAUSAL_LM_MAPPING_NAMES +from ...utils import logging +from ..auto import CONFIG_MAPPING, AutoConfig + + +logger = logging.get_logger(__name__) + + +class InstructBlipVideoVisionConfig(PretrainedConfig): + r""" + This is the configuration class to store the configuration of a [`InstructBlipVideoVisionModel`]. It is used to + instantiate a InstructBlipVideo vision encoder according to the specified arguments, defining the model architecture. + Instantiating a configuration defaults will yield a similar configuration to that of the InstructBlipVideo + [Salesforce/instruct-blip-flan-t5](https://huggingface.co/Salesforce/instruct-blip-flan-t5) architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Args: + hidden_size (`int`, *optional*, defaults to 1408): + Dimensionality of the encoder layers and the pooler layer. + intermediate_size (`int`, *optional*, defaults to 6144): + Dimensionality of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder. + num_hidden_layers (`int`, *optional*, defaults to 39): + Number of hidden layers in the Transformer encoder. + num_attention_heads (`int`, *optional*, defaults to 16): + Number of attention heads for each attention layer in the Transformer encoder. + image_size (`int`, *optional*, defaults to 224): + The size (resolution) of each image. + patch_size (`int`, *optional*, defaults to 14): + The size (resolution) of each patch. + hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`): + The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`, + `"relu"`, `"selu"` and `"gelu_new"` `"gelu"` are supported. to 1e-5): The epsilon used by the layer + normalization layers. + layer_norm_eps (`float`, *optional*, defaults to 1e-06): + The epsilon used by the layer normalization layers. + attention_dropout (`float`, *optional*, defaults to 0.0): + The dropout ratio for the attention probabilities. + initializer_range (`float`, *optional*, defaults to 1e-10): + The standard deviation of the truncated_normal_initializer for initializing all weight matrices. + qkv_bias (`bool`, *optional*, defaults to `True`): + Whether to add a bias to the queries and values in the self-attention layers. + + Example: + + ```python + >>> from transformers import InstructBlipVideoVisionConfig, InstructBlipVideoVisionModel + + >>> # Initializing a InstructBlipVideoVisionConfig with Salesforce/instruct-blip-flan-t5 style configuration + >>> configuration = InstructBlipVideoVisionConfig() + + >>> # Initializing a InstructBlipVideoVisionModel (with random weights) from the Salesforce/instruct-blip-flan-t5 style configuration + >>> model = InstructBlipVideoVisionModel(configuration) + + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "instructblipvideo_vision_model" + base_config_key = "vision_config" + + def __init__( + self, + hidden_size=1408, + intermediate_size=6144, + num_hidden_layers=39, + num_attention_heads=16, + image_size=224, + patch_size=14, + hidden_act="gelu", + layer_norm_eps=1e-6, + attention_dropout=0.0, + initializer_range=1e-10, + qkv_bias=True, + **kwargs, + ): + super().__init__(**kwargs) + + self.hidden_size = hidden_size + self.intermediate_size = intermediate_size + self.num_hidden_layers = num_hidden_layers + self.num_attention_heads = num_attention_heads + self.patch_size = patch_size + self.image_size = image_size + self.initializer_range = initializer_range + self.attention_dropout = attention_dropout + self.layer_norm_eps = layer_norm_eps + self.hidden_act = hidden_act + self.qkv_bias = qkv_bias + + +class InstructBlipVideoQFormerConfig(PretrainedConfig): + r""" + This is the configuration class to store the configuration of a [`InstructBlipVideoQFormerModel`]. It is used to + instantiate a InstructBlipVideo Querying Transformer (Q-Former) model according to the specified arguments, defining the + model architecture. Instantiating a configuration with the defaults will yield a similar configuration to that of + the InstructBlipVideo [Salesforce/instruct-blip-flan-t5](https://huggingface.co/Salesforce/instruct-blip-flan-t5) + architecture. Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. + Read the documentation from [`PretrainedConfig`] for more information. + + Note that [`InstructBlipVideoQFormerModel`] is very similar to [`BertLMHeadModel`] with interleaved cross-attention. + + Args: + vocab_size (`int`, *optional*, defaults to 30522): + Vocabulary size of the Q-Former model. Defines the number of different tokens that can be represented by + the `inputs_ids` passed when calling the model. + hidden_size (`int`, *optional*, defaults to 768): + Dimensionality of the encoder layers and the pooler layer. + num_hidden_layers (`int`, *optional*, defaults to 12): + Number of hidden layers in the Transformer encoder. + num_attention_heads (`int`, *optional*, defaults to 12): + Number of attention heads for each attention layer in the Transformer encoder. + intermediate_size (`int`, *optional*, defaults to 3072): + Dimensionality of the "intermediate" (often named feed-forward) layer in the Transformer encoder. + hidden_act (`str` or `Callable`, *optional*, defaults to `"gelu"`): + The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`, + `"relu"`, `"silu"` and `"gelu_new"` are supported. + hidden_dropout_prob (`float`, *optional*, defaults to 0.1): + The dropout probability for all fully connected layers in the embeddings, encoder, and pooler. + attention_probs_dropout_prob (`float`, *optional*, defaults to 0.1): + The dropout ratio for the attention probabilities. + max_position_embeddings (`int`, *optional*, defaults to 512): + The maximum sequence length that this model might ever be used with. Typically set this to something large + just in case (e.g., 512 or 1024 or 2048). + initializer_range (`float`, *optional*, defaults to 0.02): + The standard deviation of the truncated_normal_initializer for initializing all weight matrices. + layer_norm_eps (`float`, *optional*, defaults to 1e-12): + The epsilon used by the layer normalization layers. + pad_token_id (`int`, *optional*, defaults to 0): + Token id used for padding sequences. + position_embedding_type (`str`, *optional*, defaults to `"absolute"`): + Type of position embedding. Choose one of `"absolute"`, `"relative_key"`, `"relative_key_query"`. For + positional embeddings use `"absolute"`. For more information on `"relative_key"`, please refer to + [Self-Attention with Relative Position Representations (Shaw et al.)](https://arxiv.org/abs/1803.02155). + For more information on `"relative_key_query"`, please refer to *Method 4* in [Improve Transformer Models + with Better Relative Position Embeddings (Huang et al.)](https://arxiv.org/abs/2009.13658). + cross_attention_frequency (`int`, *optional*, defaults to 2): + The frequency of adding cross-attention to the Transformer layers. + encoder_hidden_size (`int`, *optional*, defaults to 1408): + The hidden size of the hidden states for cross-attention. + + Examples: + + ```python + >>> from transformers import InstructBlipVideoQFormerConfig, InstructBlipVideoQFormerModel + + >>> # Initializing a InstructBlipVideo Salesforce/instruct-blip-flan-t5 style configuration + >>> configuration = InstructBlipVideoQFormerConfig() + + >>> # Initializing a model (with random weights) from the Salesforce/instruct-blip-flan-t5 style configuration + >>> model = InstructBlipVideoQFormerModel(configuration) + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "instructblipvideo_qformer" + base_config_key = "qformer_config" + + def __init__( + self, + vocab_size=30522, + hidden_size=768, + num_hidden_layers=12, + num_attention_heads=12, + intermediate_size=3072, + hidden_act="gelu", + hidden_dropout_prob=0.1, + attention_probs_dropout_prob=0.1, + max_position_embeddings=512, + initializer_range=0.02, + layer_norm_eps=1e-12, + pad_token_id=0, + position_embedding_type="absolute", + cross_attention_frequency=2, + encoder_hidden_size=1408, + **kwargs, + ): + super().__init__(pad_token_id=pad_token_id, **kwargs) + + self.vocab_size = vocab_size + self.hidden_size = hidden_size + self.num_hidden_layers = num_hidden_layers + self.num_attention_heads = num_attention_heads + self.hidden_act = hidden_act + self.intermediate_size = intermediate_size + self.hidden_dropout_prob = hidden_dropout_prob + self.attention_probs_dropout_prob = attention_probs_dropout_prob + self.max_position_embeddings = max_position_embeddings + self.initializer_range = initializer_range + self.layer_norm_eps = layer_norm_eps + self.position_embedding_type = position_embedding_type + self.cross_attention_frequency = cross_attention_frequency + self.encoder_hidden_size = encoder_hidden_size + + +class InstructBlipVideoConfig(PretrainedConfig): + r""" + [`InstructBlipVideoConfig`] is the configuration class to store the configuration of a + [`InstructBlipVideoForConditionalGeneration`]. It is used to instantiate a Instructblipvideo model according to the specified + arguments, defining the vision model, Q-Former model and language model configs. Instantiating a configuration with + the defaults will yield a similar configuration to that of the Instructblipvideo + [Salesforce/instruct-blip-flan-t5](https://huggingface.co/Salesforce/instruct-blip-flan-t5) architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Args: + vision_config (`dict`, *optional*): + Dictionary of configuration options used to initialize [`InstructBlipVideoVisionConfig`]. + qformer_config (`dict`, *optional*): + Dictionary of configuration options used to initialize [`InstructBlipVideoQFormerConfig`]. + text_config (`dict`, *optional*): + Dictionary of configuration options used to initialize any [`PretrainedConfig`]. + num_query_tokens (`int`, *optional*, defaults to 32): + The number of query tokens passed through the Transformer. + + video_token_index (`int`, *optional*): + Token index of special video token. + kwargs (*optional*): + Dictionary of keyword arguments. + + Example: + + ```python + >>> from transformers import ( + ... InstructBlipVideoVisionConfig, + ... InstructBlipVideoQFormerConfig, + ... OPTConfig, + ... InstructBlipVideoConfig, + ... InstructBlipVideoForConditionalGeneration, + ... ) + + >>> # Initializing a InstructBlipVideoConfig with Salesforce/instruct-blip-flan-t5 style configuration + >>> configuration = InstructBlipVideoConfig() + + >>> # Initializing a InstructBlipVideoForConditionalGeneration (with random weights) from the Salesforce/instruct-blip-flan-t5 style configuration + >>> model = InstructBlipVideoForConditionalGeneration(configuration) + + >>> # Accessing the model configuration + >>> configuration = model.config + + >>> # We can also initialize a InstructBlipVideoConfig from a InstructBlipVideoVisionConfig, InstructBlipVideoQFormerConfig and any PretrainedConfig + + >>> # Initializing Instructblipvideo vision, Instructblipvideo Q-Former and language model configurations + >>> vision_config = InstructBlipVideoVisionConfig() + >>> qformer_config = InstructBlipVideoQFormerConfig() + >>> text_config = OPTConfig() + + >>> config = InstructBlipVideoConfig.from_text_vision_configs(vision_config, qformer_config, text_config) + ```""" + + model_type = "instructblipvideo" + sub_configs = { + "text_config": AutoConfig, + "qformer_config": InstructBlipVideoQFormerConfig, + "vision_config": InstructBlipVideoVisionConfig, + } + + def __init__( + self, + vision_config=None, + qformer_config=None, + text_config=None, + num_query_tokens=32, + video_token_index=None, + **kwargs, + ): + super().__init__(**kwargs) + + if vision_config is None: + vision_config = {} + logger.info("vision_config is None. initializing the InstructBlipVideoVisionConfig with default values.") + + if qformer_config is None: + qformer_config = {} + logger.info("qformer_config is None. Initializing the InstructBlipVideoQFormerConfig with default values.") + + if text_config is None: + text_config = {} + logger.info("text_config is None. Initializing the text config with default values (`OPTConfig`).") + + self.vision_config = InstructBlipVideoVisionConfig(**vision_config) + self.qformer_config = InstructBlipVideoQFormerConfig(**qformer_config) + text_model_type = text_config["model_type"] if "model_type" in text_config else "opt" + self.text_config = CONFIG_MAPPING[text_model_type](**text_config) + + self.num_query_tokens = num_query_tokens + self.video_token_index = video_token_index + self.qformer_config.encoder_hidden_size = self.vision_config.hidden_size + self.use_decoder_only_language_model = self.text_config.model_type in MODEL_FOR_CAUSAL_LM_MAPPING_NAMES + self.initializer_factor = 1.0 + self.initializer_range = 0.02 + + @classmethod + def from_vision_qformer_text_configs( + cls, + vision_config: InstructBlipVideoVisionConfig, + qformer_config: InstructBlipVideoQFormerConfig, + text_config: PretrainedConfig, + **kwargs, + ): + r""" + Instantiate a [`InstructBlipVideoConfig`] (or a derived class) from a InstructBlipVideo vision model, Q-Former and + language model configurations. + + Returns: + [`InstructBlipVideoConfig`]: An instance of a configuration object + """ + + return cls( + vision_config=vision_config.to_dict(), + qformer_config=qformer_config.to_dict(), + text_config=text_config.to_dict(), + **kwargs, + ) diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/convert_instructblipvideo_original_to_pytorch.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/convert_instructblipvideo_original_to_pytorch.py new file mode 100644 index 0000000000000000000000000000000000000000..9b3d508db6ffe6fa7add147ef5fa2cc420070b5b --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/convert_instructblipvideo_original_to_pytorch.py @@ -0,0 +1,305 @@ +# coding=utf-8 +# Copyright 2024 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Convert InstructBlipVideo checkpoints from the original repository. + +URL: https://github.com/salesforce/LAVIS/tree/main/projects/instructblipvideo +""" + +import argparse + +import requests +import torch + +# pip3 install salesforce-lavis +# I'm actually installing a slightly modified version: pip3 install git+https://github.com/nielsrogge/LAVIS.git@fix_lavis_float32 (there's also the fix_lavis branch) +# also note: to convert Vicuna checkpoints, we had to include /home/niels/python_projects/checkpoints/FastChat/vicuna-7b in lavis/configs/models/blip2/blip2_instruct_vicuna7b.yaml +# same for Vicuna-13b +from lavis.models import load_model_and_preprocess +from PIL import Image + +from transformers import ( + AutoTokenizer, + BlipImageProcessor, + InstructBlipProcessor, + InstructBlipVideoConfig, + InstructBlipVideoForConditionalGeneration, + InstructBlipVideoQFormerConfig, + InstructBlipVideoVisionConfig, + LlamaConfig, + LlamaTokenizerFast, + T5Config, + T5TokenizerFast, +) +from transformers.utils.constants import OPENAI_CLIP_MEAN, OPENAI_CLIP_STD + + +def load_demo_image(): + url = "https://raw.githubusercontent.com/salesforce/LAVIS/main/docs/_static/Confusing-Pictures.jpg" + image = Image.open(requests.get(url, stream=True).raw).convert("RGB") + + return image + + +# here we list all keys to be renamed (original name on the left, our name on the right) +def create_rename_keys(config): + rename_keys = [] + # fmt: off + + # vision encoder + rename_keys.append(("visual_encoder.cls_token", "vision_model.embeddings.class_embedding")) + rename_keys.append(("visual_encoder.pos_embed", "vision_model.embeddings.position_embedding")) + rename_keys.append(("visual_encoder.patch_embed.proj.weight", "vision_model.embeddings.patch_embedding.weight")) + rename_keys.append(("visual_encoder.patch_embed.proj.bias", "vision_model.embeddings.patch_embedding.bias")) + rename_keys.append(("ln_vision.weight", "vision_model.post_layernorm.weight")) + rename_keys.append(("ln_vision.bias", "vision_model.post_layernorm.bias")) + + for i in range(config.vision_config.num_hidden_layers): + rename_keys.append((f"visual_encoder.blocks.{i}.norm1.weight", f"vision_model.encoder.layers.{i}.layer_norm1.weight")) + rename_keys.append((f"visual_encoder.blocks.{i}.norm1.bias", f"vision_model.encoder.layers.{i}.layer_norm1.bias")) + rename_keys.append((f"visual_encoder.blocks.{i}.norm2.weight", f"vision_model.encoder.layers.{i}.layer_norm2.weight")) + rename_keys.append((f"visual_encoder.blocks.{i}.norm2.bias", f"vision_model.encoder.layers.{i}.layer_norm2.bias")) + rename_keys.append((f"visual_encoder.blocks.{i}.attn.qkv.weight", f"vision_model.encoder.layers.{i}.self_attn.qkv.weight")) + rename_keys.append((f"visual_encoder.blocks.{i}.attn.proj.weight", f"vision_model.encoder.layers.{i}.self_attn.projection.weight",)) + rename_keys.append((f"visual_encoder.blocks.{i}.attn.proj.bias", f"vision_model.encoder.layers.{i}.self_attn.projection.bias")) + rename_keys.append((f"visual_encoder.blocks.{i}.mlp.fc1.weight", f"vision_model.encoder.layers.{i}.mlp.fc1.weight")) + rename_keys.append((f"visual_encoder.blocks.{i}.mlp.fc1.bias", f"vision_model.encoder.layers.{i}.mlp.fc1.bias")) + rename_keys.append((f"visual_encoder.blocks.{i}.mlp.fc2.weight", f"vision_model.encoder.layers.{i}.mlp.fc2.weight")) + rename_keys.append((f"visual_encoder.blocks.{i}.mlp.fc2.bias", f"vision_model.encoder.layers.{i}.mlp.fc2.bias")) + + # QFormer + rename_keys.append(("Qformer.bert.embeddings.LayerNorm.weight", "qformer.embeddings.layernorm.weight")) + rename_keys.append(("Qformer.bert.embeddings.LayerNorm.bias", "qformer.embeddings.layernorm.bias")) + + # fmt: on + return rename_keys + + +def rename_key(dct, old, new): + val = dct.pop(old) + dct[new] = val + + +def read_in_q_v_bias(state_dict, config): + for i in range(config.vision_config.num_hidden_layers): + # read in original q and v biases + q_bias = state_dict.pop(f"visual_encoder.blocks.{i}.attn.q_bias") + v_bias = state_dict.pop(f"visual_encoder.blocks.{i}.attn.v_bias") + + # next, set bias in the state dict + qkv_bias = torch.cat((q_bias, torch.zeros_like(v_bias, requires_grad=False), v_bias)) + state_dict[f"vision_model.encoder.layers.{i}.self_attn.qkv.bias"] = qkv_bias + + +def get_blip2_config(model_name): + image_size = 364 if "coco" in model_name else 224 + vision_config = InstructBlipVideoVisionConfig(image_size=image_size).to_dict() + + # make sure the models have proper bos_token_id and eos_token_id set (important for generation) + # seems like flan-T5 models don't have bos_token_id properly set? + if "t5-xl" in model_name: + text_config = T5Config.from_pretrained("google/flan-t5-xl", dense_act_fn="gelu", bos_token_id=1).to_dict() + elif "t5-xxl" in model_name: + text_config = T5Config.from_pretrained("google/flan-t5-xxl", dense_act_fn="gelu", bos_token_id=1).to_dict() + elif "vicuna-7b" in model_name: + text_config = LlamaConfig.from_pretrained("decapoda-research/llama-7b-hf", vocab_size=32001).to_dict() + elif "vicuna-13b" in model_name: + text_config = LlamaConfig.from_pretrained("decapoda-research/llama-13b-hf", vocab_size=32001).to_dict() + else: + raise ValueError("Model name not supported") + + # the authors add one special "[DEC]" token to the vocab of Q-Former, hence vocab size = 30522 + 1 + qformer_config = InstructBlipVideoQFormerConfig(vocab_size=30523).to_dict() + config = InstructBlipVideoConfig( + vision_config=vision_config, text_config=text_config, qformer_config=qformer_config + ) + + return config, image_size + + +@torch.no_grad() +def convert_blip2_checkpoint(model_name, pytorch_dump_folder_path=None, push_to_hub=False): + """ + Copy/paste/tweak model's weights to Transformers design. + """ + qformer_tokenizer = AutoTokenizer.from_pretrained("google-bert/bert-base-uncased", truncation_side="left") + qformer_tokenizer.add_special_tokens({"bos_token": "[DEC]"}) + + if "t5" in model_name: + tokenizer = T5TokenizerFast.from_pretrained("google/flan-t5-xl", truncation_side="left") + elif "vicuna" in model_name: + # the following was used in the original implementation: + # tokenizer = LlamaTokenizer.from_pretrained("huggyllama/llama-7b", use_fast=False, truncation_side="left") + # tokenizer.add_special_tokens({"pad_token": "[PAD]"}) + # tokenizer.add_special_tokens({"bos_token": ""}) + # tokenizer.add_special_tokens({"eos_token": ""}) + # tokenizer.add_special_tokens({"unk_token": ""}) + tokenizer = LlamaTokenizerFast.from_pretrained( + "huggyllama/llama-7b", truncation_side="left", bos_token="", unk_token="" + ) + tokenizer.add_special_tokens({"pad_token": "[PAD]"}) + + config, image_size = get_blip2_config(model_name) + hf_model = InstructBlipVideoForConditionalGeneration(config).eval() + + model_name_to_original = { + "instructblipvideo-vicuna-7b": ("blip2_vicuna_instruct", "vicuna7b"), + "instructblipvideo-vicuna-13b": ("blip2_vicuna_instruct", "vicuna13b"), + "instructblipvideo-flan-t5-xl": ("blip2_t5_instruct", "flant5xl"), + "instructblipvideo-flan-t5-xxl": ("blip2_t5_instruct", "flant5xxl"), + } + + name, type = model_name_to_original[model_name] + + # load original model + print("Loading original model...") + hf_model_device = "cuda:1" if torch.cuda.is_available() else "cpu" + lavis_device = "cuda:2" if torch.cuda.is_available() else "cpu" + original_model, vis_processors, _ = load_model_and_preprocess( + name=name, model_type=type, is_eval=True, device=lavis_device + ) + original_model.eval() + print("Done!") + + # update state dict keys + state_dict = original_model.state_dict() + rename_keys = create_rename_keys(config) + for src, dest in rename_keys: + rename_key(state_dict, src, dest) + + # some keys can be renamed efficiently + for key, val in state_dict.copy().items(): + val = state_dict.pop(key) + if key.startswith("Qformer.bert"): + key = key.replace("Qformer.bert", "qformer") + if "attention.self" in key: + key = key.replace("self", "attention") + if "llm_proj" in key: + key = key.replace("llm_proj", "language_projection") + if "t5_proj" in key: + key = key.replace("t5_proj", "language_projection") + if key.startswith("llm_model"): + key = key.replace("llm_model", "language_model") + if key.startswith("t5"): + key = key.replace("t5", "language") + state_dict[key] = val + + # read in qv biases + read_in_q_v_bias(state_dict, config) + + # note: weights get loaded in torch.float32 by default + hf_model.load_state_dict(state_dict, strict=True) + + image = load_demo_image() + prompt = "What is unusual about this image?" + + # create processor + image_processor = BlipImageProcessor( + size={"height": image_size, "width": image_size}, image_mean=OPENAI_CLIP_MEAN, image_std=OPENAI_CLIP_STD + ) + processor = InstructBlipProcessor( + image_processor=image_processor, + tokenizer=tokenizer, + qformer_tokenizer=qformer_tokenizer, + ) + inputs = processor(images=image, text=prompt, return_tensors="pt").to(hf_model_device) + + # make sure processor creates exact same pixel values + original_pixel_values = vis_processors["eval"](image).unsqueeze(0).to(lavis_device) + pixel_values = inputs.pixel_values + assert torch.allclose(original_pixel_values.to(pixel_values.device), pixel_values) + + original_model.to(lavis_device) + hf_model.to(hf_model_device) + with torch.no_grad(): + if "vicuna" in model_name: + original_logits = original_model({"image": original_pixel_values, "text_input": [prompt]}).logits + logits = hf_model(**inputs).logits + else: + original_logits = original_model( + {"image": original_pixel_values, "text_input": [prompt], "text_output": ["\n"]} + ).logits + label_input_ids = tokenizer("\n", return_tensors="pt").input_ids.to(hf_model_device) + labels = label_input_ids.masked_fill(label_input_ids == tokenizer.pad_token_id, -100) + logits = hf_model(**inputs, labels=labels).logits + + print("First values of original logits:", original_logits[0, :3, :3]) + print("First values of HF logits:", logits[0, :3, :3]) + + # assert values + assert original_logits.shape == logits.shape + atol = 1e-4 if "vicuna" in model_name else 1e-5 + assert torch.allclose(original_logits.to(logits.device), logits, atol=atol) + print("Looks ok!") + + print("Generating with original model...") + original_outputs = original_model.generate({"image": original_pixel_values, "prompt": prompt}, num_beams=5) + + # important: we need to cast the weights of the HF model to the appropriate type + print("Generating with HF model...") + outputs = hf_model.generate( + **inputs, + do_sample=False, + num_beams=5, + max_length=256, + min_length=1, + top_p=0.9, + repetition_penalty=1.5, + length_penalty=1.0, + temperature=1, + ) + if "vicuna" in model_name: + # convert output id 0 to 2 (eos_token_id) + # TODO add this in the generate method? + outputs[outputs == 0] = 2 + print("Original generation:", original_outputs) + output_text = processor.batch_decode(outputs, skip_special_tokens=True) + output_text = [text.strip() for text in output_text] + print("HF generation:", output_text) + + if pytorch_dump_folder_path is not None: + processor.save_pretrained(pytorch_dump_folder_path) + hf_model.save_pretrained(pytorch_dump_folder_path) + + if push_to_hub: + processor.push_to_hub(f"Salesforce/{model_name}") + hf_model.push_to_hub(f"Salesforce/{model_name}") + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + choices = [ + "instructblipvideo-vicuna-7b", + "instructblipvideo-vicuna-13b", + "instructblipvideo-flan-t5-xl", + "instructblipvideo-flan-t5-xxl", + ] + parser.add_argument( + "--model_name", + default="instructblipvideo-flan-t5-xl", + choices=choices, + type=str, + help="Path to hf config.json of model to convert", + ) + parser.add_argument("--pytorch_dump_folder_path", default=None, type=str, help="Path to the output PyTorch model.") + parser.add_argument( + "--push_to_hub", + action="store_true", + help="Whether to push the model and processor to the hub after converting", + ) + + args = parser.parse_args() + + convert_blip2_checkpoint(args.model_name, args.pytorch_dump_folder_path, args.push_to_hub) diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/image_processing_instructblipvideo.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/image_processing_instructblipvideo.py new file mode 100644 index 0000000000000000000000000000000000000000..37cec22a9b365817bbf4703631dc4fc3af0a405f --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/image_processing_instructblipvideo.py @@ -0,0 +1,325 @@ +# coding=utf-8 +# Copyright 2024 The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +""" +Image processor class for InstructBLIPVideo. Largely copy of Blip2Processor with addition of a video processing abilities +""" + +from typing import Dict, List, Optional, Union + +import numpy as np + +from ...image_processing_utils import BaseImageProcessor, BatchFeature, get_size_dict +from ...image_transforms import convert_to_rgb, resize, to_channel_dimension_format +from ...image_utils import ( + OPENAI_CLIP_MEAN, + OPENAI_CLIP_STD, + ChannelDimension, + ImageInput, + PILImageResampling, + VideoInput, + infer_channel_dimension_format, + is_scaled_image, + make_batched_videos, + to_numpy_array, + valid_images, + validate_preprocess_arguments, +) +from ...utils import TensorType, filter_out_non_signature_kwargs, logging + + +logger = logging.get_logger(__name__) + + +# Copied from transformers.models.blip.image_processing_blip.BlipImageProcessor with Blip->InstructBlipVideo, BLIP->InstructBLIPVideo +class InstructBlipVideoImageProcessor(BaseImageProcessor): + r""" + Constructs a InstructBLIPVideo image processor. + + Args: + do_resize (`bool`, *optional*, defaults to `True`): + Whether to resize the image's (height, width) dimensions to the specified `size`. Can be overridden by the + `do_resize` parameter in the `preprocess` method. + size (`dict`, *optional*, defaults to `{"height": 384, "width": 384}`): + Size of the output image after resizing. Can be overridden by the `size` parameter in the `preprocess` + method. + resample (`PILImageResampling`, *optional*, defaults to `Resampling.BICUBIC`): + Resampling filter to use if resizing the image. Only has an effect if `do_resize` is set to `True`. Can be + overridden by the `resample` parameter in the `preprocess` method. + do_rescale (`bool`, *optional*, defaults to `True`): + Whether to rescale the image by the specified scale `rescale_factor`. Can be overridden by the + `do_rescale` parameter in the `preprocess` method. + rescale_factor (`int` or `float`, *optional*, defaults to `1/255`): + Scale factor to use if rescaling the image. Only has an effect if `do_rescale` is set to `True`. Can be + overridden by the `rescale_factor` parameter in the `preprocess` method. + do_normalize (`bool`, *optional*, defaults to `True`): + Whether to normalize the image. Can be overridden by the `do_normalize` parameter in the `preprocess` + method. Can be overridden by the `do_normalize` parameter in the `preprocess` method. + image_mean (`float` or `List[float]`, *optional*, defaults to `IMAGENET_STANDARD_MEAN`): + Mean to use if normalizing the image. This is a float or list of floats the length of the number of + channels in the image. Can be overridden by the `image_mean` parameter in the `preprocess` method. Can be + overridden by the `image_mean` parameter in the `preprocess` method. + image_std (`float` or `List[float]`, *optional*, defaults to `IMAGENET_STANDARD_STD`): + Standard deviation to use if normalizing the image. This is a float or list of floats the length of the + number of channels in the image. Can be overridden by the `image_std` parameter in the `preprocess` method. + Can be overridden by the `image_std` parameter in the `preprocess` method. + do_convert_rgb (`bool`, *optional*, defaults to `True`): + Whether to convert the image to RGB. + """ + + model_input_names = ["pixel_values"] + + def __init__( + self, + do_resize: bool = True, + size: Dict[str, int] = None, + resample: PILImageResampling = PILImageResampling.BICUBIC, + do_rescale: bool = True, + rescale_factor: Union[int, float] = 1 / 255, + do_normalize: bool = True, + image_mean: Optional[Union[float, List[float]]] = None, + image_std: Optional[Union[float, List[float]]] = None, + do_convert_rgb: bool = True, + **kwargs, + ) -> None: + super().__init__(**kwargs) + size = size if size is not None else {"height": 384, "width": 384} + size = get_size_dict(size, default_to_square=True) + + self.do_resize = do_resize + self.size = size + self.resample = resample + self.do_rescale = do_rescale + self.rescale_factor = rescale_factor + self.do_normalize = do_normalize + self.image_mean = image_mean if image_mean is not None else OPENAI_CLIP_MEAN + self.image_std = image_std if image_std is not None else OPENAI_CLIP_STD + self.do_convert_rgb = do_convert_rgb + + # Copied from transformers.models.vit.image_processing_vit.ViTImageProcessor.resize with PILImageResampling.BILINEAR->PILImageResampling.BICUBIC + def resize( + self, + image: np.ndarray, + size: Dict[str, int], + resample: PILImageResampling = PILImageResampling.BICUBIC, + data_format: Optional[Union[str, ChannelDimension]] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + **kwargs, + ) -> np.ndarray: + """ + Resize an image to `(size["height"], size["width"])`. + + Args: + image (`np.ndarray`): + Image to resize. + size (`Dict[str, int]`): + Dictionary in the format `{"height": int, "width": int}` specifying the size of the output image. + resample (`PILImageResampling`, *optional*, defaults to `PILImageResampling.BICUBIC`): + `PILImageResampling` filter to use when resizing the image e.g. `PILImageResampling.BICUBIC`. + data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format for the output image. If unset, the channel dimension format of the input + image is used. Can be one of: + - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format. + - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format. + - `"none"` or `ChannelDimension.NONE`: image in (height, width) format. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format for the input image. If unset, the channel dimension format is inferred + from the input image. Can be one of: + - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format. + - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format. + - `"none"` or `ChannelDimension.NONE`: image in (height, width) format. + + Returns: + `np.ndarray`: The resized image. + """ + size = get_size_dict(size) + if "height" not in size or "width" not in size: + raise ValueError(f"The `size` dictionary must contain the keys `height` and `width`. Got {size.keys()}") + + output_size = (size["height"], size["width"]) + return resize( + image, + size=output_size, + resample=resample, + data_format=data_format, + input_data_format=input_data_format, + **kwargs, + ) + + # Ignore copy + @filter_out_non_signature_kwargs() + def preprocess( + self, + images: VideoInput = None, + do_resize: Optional[bool] = None, + size: Optional[Dict[str, int]] = None, + resample: PILImageResampling = None, + do_rescale: Optional[bool] = None, + rescale_factor: Optional[float] = None, + do_normalize: Optional[bool] = None, + image_mean: Optional[Union[float, List[float]]] = None, + image_std: Optional[Union[float, List[float]]] = None, + return_tensors: Optional[Union[str, TensorType]] = None, + do_convert_rgb: bool = None, + data_format: ChannelDimension = ChannelDimension.FIRST, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ) -> BatchFeature: + """ + Preprocess a video or batch of images/videos. + + Args: + videos (`VideoInput`): + Video frames to preprocess. Expects a single or batch of videos as a list of frames with pixel values + ranging from 0 to 255. If passing in video with pixel values between 0 and 1, set `do_rescale=False`. + do_resize (`bool`, *optional*, defaults to `self.do_resize`): + Whether to resize the video. + size (`Dict[str, int]`, *optional*, defaults to `self.size`): + Controls the size of the video after `resize`. The shortest edge of the image is resized to + `size["shortest_edge"]` whilst preserving the aspect ratio. If the longest edge of this resized image + is > `int(size["shortest_edge"] * (1333 / 800))`, then the image is resized again to make the longest + edge equal to `int(size["shortest_edge"] * (1333 / 800))`. + resample (`PILImageResampling`, *optional*, defaults to `self.resample`): + Resampling filter to use if resizing the video. Only has an effect if `do_resize` is set to `True`. + do_rescale (`bool`, *optional*, defaults to `self.do_rescale`): + Whether to rescale the video values between [0 - 1]. + rescale_factor (`float`, *optional*, defaults to `self.rescale_factor`): + Rescale factor to rescale the video by if `do_rescale` is set to `True`. + do_normalize (`bool`, *optional*, defaults to `self.do_normalize`): + Whether to normalize the video. + image_mean (`float` or `List[float]`, *optional*, defaults to `self.image_mean`): + Image mean to normalize the video by if `do_normalize` is set to `True`. + image_std (`float` or `List[float]`, *optional*, defaults to `self.image_std`): + Image standard deviation to normalize the video by if `do_normalize` is set to `True`. + do_convert_rgb (`bool`, *optional*, defaults to `self.do_convert_rgb`): + Whether to convert the image to RGB. + return_tensors (`str` or `TensorType`, *optional*): + The type of tensors to return. Can be one of: + - Unset: Return a list of `np.ndarray`. + - `TensorType.TENSORFLOW` or `'tf'`: Return a batch of type `tf.Tensor`. + - `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`. + - `TensorType.NUMPY` or `'np'`: Return a batch of type `np.ndarray`. + - `TensorType.JAX` or `'jax'`: Return a batch of type `jax.numpy.ndarray`. + data_format (`ChannelDimension` or `str`, *optional*, defaults to `ChannelDimension.FIRST`): + The channel dimension format for the output image. Can be one of: + - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format. + - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format. + - Unset: Use the channel dimension format of the input image. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format for the input image. If unset, the channel dimension format is inferred + from the input image. Can be one of: + - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format. + - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format. + - `"none"` or `ChannelDimension.NONE`: image in (height, width) format. + """ + do_resize = do_resize if do_resize is not None else self.do_resize + resample = resample if resample is not None else self.resample + do_rescale = do_rescale if do_rescale is not None else self.do_rescale + rescale_factor = rescale_factor if rescale_factor is not None else self.rescale_factor + do_normalize = do_normalize if do_normalize is not None else self.do_normalize + image_mean = image_mean if image_mean is not None else self.image_mean + image_std = image_std if image_std is not None else self.image_std + do_convert_rgb = do_convert_rgb if do_convert_rgb is not None else self.do_convert_rgb + + size = size if size is not None else self.size + size = get_size_dict(size, default_to_square=False) + + videos = make_batched_videos(images) + + validate_preprocess_arguments( + do_rescale=do_rescale, + rescale_factor=rescale_factor, + do_normalize=do_normalize, + image_mean=image_mean, + image_std=image_std, + do_resize=do_resize, + size=size, + resample=resample, + ) + + if not valid_images(videos): + raise ValueError( + "Invalid input type. Must be of type PIL.Image.Image, numpy.ndarray, " + "torch.Tensor, tf.Tensor or jax.ndarray." + ) + + pixel_values = [ + [ + self._preprocess_image( + image=frame, + do_resize=do_resize, + size=size, + resample=resample, + do_rescale=do_rescale, + rescale_factor=rescale_factor, + do_normalize=do_normalize, + image_mean=image_mean, + image_std=image_std, + do_convert_rgb=do_convert_rgb, + data_format=data_format, + input_data_format=input_data_format, + ) + for frame in video + ] + for video in videos + ] + + encoded_outputs = BatchFeature(data={"pixel_values": pixel_values}, tensor_type=return_tensors) + return encoded_outputs + + # Ignore copy + def _preprocess_image( + self, + image: ImageInput = None, + do_resize: Optional[bool] = None, + size: Optional[Dict[str, int]] = None, + resample: PILImageResampling = None, + do_rescale: Optional[bool] = None, + rescale_factor: Optional[float] = None, + do_normalize: Optional[bool] = None, + image_mean: Optional[Union[float, List[float]]] = None, + image_std: Optional[Union[float, List[float]]] = None, + do_convert_rgb: bool = None, + data_format: ChannelDimension = ChannelDimension.FIRST, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ) -> np.ndarray: + # PIL RGBA images are converted to RGB + if do_convert_rgb: + image = convert_to_rgb(image) + + # All transformations expect numpy arrays. + image = to_numpy_array(image) + + if do_rescale and is_scaled_image(image): + logger.warning_once( + "It looks like you are trying to rescale already rescaled video frames. If the input" + " images have pixel values between 0 and 1, set `do_rescale=False` to avoid rescaling them again." + ) + + if input_data_format is None: + # We assume that all images have the same channel dimension format. + input_data_format = infer_channel_dimension_format(image) + + if do_resize: + image = self.resize(image=image, size=size, resample=resample, input_data_format=input_data_format) + + if do_rescale: + image = self.rescale(image=image, scale=rescale_factor, input_data_format=input_data_format) + + if do_normalize: + image = self.normalize(image=image, mean=image_mean, std=image_std, input_data_format=input_data_format) + + image = to_channel_dimension_format(image, data_format, input_channel_dim=input_data_format) + + return image diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/modeling_instructblipvideo.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/modeling_instructblipvideo.py new file mode 100644 index 0000000000000000000000000000000000000000..8648d53b87011ce4c7c820c64d601f6d8f858aee --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/modeling_instructblipvideo.py @@ -0,0 +1,1679 @@ +# 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 +# This file was automatically generated from src/transformers/models/instructblipvideo/modular_instructblipvideo.py. +# Do NOT edit this file manually as any edits will be overwritten by the generation of +# the file from the modular. If any change should be done, please apply the change to the +# modular_instructblipvideo.py file directly. One of our CI enforces this. +# 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 +# coding=utf-8 +# Copyright 2024 HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +import math +from dataclasses import dataclass +from typing import Any, Optional, Tuple, Union + +import torch +from torch import nn +from torch.nn import CrossEntropyLoss + +from ...activations import ACT2FN +from ...generation import GenerationMixin +from ...modeling_outputs import ( + BaseModelOutput, + BaseModelOutputWithPastAndCrossAttentions, + BaseModelOutputWithPooling, + BaseModelOutputWithPoolingAndCrossAttentions, +) +from ...modeling_utils import PreTrainedModel +from ...pytorch_utils import apply_chunking_to_forward, find_pruneable_heads_and_indices, prune_linear_layer +from ...utils import ( + ModelOutput, + add_start_docstrings, + add_start_docstrings_to_model_forward, + logging, + replace_return_docstrings, + torch_int, +) +from ..auto import AutoModelForCausalLM, AutoModelForSeq2SeqLM +from .configuration_instructblipvideo import ( + InstructBlipVideoConfig, + InstructBlipVideoQFormerConfig, + InstructBlipVideoVisionConfig, +) + + +logger = logging.get_logger(__name__) + + +@dataclass +class InstructBlipVideoForConditionalGenerationModelOutput(ModelOutput): + """ + Class defining the outputs of [`InstructBlipVideoForConditionalGeneration`]. + + Args: + loss (`torch.FloatTensor`, *optional*, returned when `labels` is provided, `torch.FloatTensor` of shape `(1,)`): + Language modeling loss from the language model. + logits (`torch.FloatTensor` of shape `(batch_size, sequence_length, config.vocab_size)`): + Prediction scores of the language modeling head of the language model. + vision_outputs (`BaseModelOutputWithPooling`): + Outputs of the vision encoder. + qformer_outputs (`BaseModelOutputWithPoolingAndCrossAttentions`): + Outputs of the Q-Former (Querying Transformer). + language_model_outputs (`CausalLMOutputWithPast` or `Seq2SeqLMOutput`): + Outputs of the language model. + """ + + loss: Optional[Tuple[torch.FloatTensor]] = None + logits: Optional[Tuple[torch.FloatTensor]] = None + vision_outputs: Optional[torch.FloatTensor] = None + qformer_outputs: Optional[Tuple[torch.FloatTensor]] = None + language_model_outputs: Optional[Tuple[torch.FloatTensor]] = None + + def to_tuple(self) -> Tuple[Any]: + return tuple( + self[k] + if k not in ["vision_outputs", "qformer_outputs", "language_model_outputs"] + else getattr(self, k).to_tuple() + for k in self.keys() + ) + + +class InstructBlipVideoVisionEmbeddings(nn.Module): + def __init__(self, config: InstructBlipVideoVisionConfig): + super().__init__() + self.config = config + self.embed_dim = config.hidden_size + self.image_size = config.image_size + self.patch_size = config.patch_size + + self.class_embedding = nn.Parameter(torch.randn(1, 1, self.embed_dim)) + + self.patch_embedding = nn.Conv2d( + in_channels=3, out_channels=self.embed_dim, kernel_size=self.patch_size, stride=self.patch_size + ) + + self.num_patches = (self.image_size // self.patch_size) ** 2 + self.num_positions = self.num_patches + 1 + + self.position_embedding = nn.Parameter(torch.randn(1, self.num_positions, self.embed_dim)) + + def interpolate_pos_encoding(self, embeddings: torch.Tensor, height: int, width: int) -> torch.Tensor: + """ + This method allows to interpolate the pre-trained position encodings, to be able to use the model on higher resolution + images. This method is also adapted to support torch.jit tracing. + + Adapted from: + - https://github.com/facebookresearch/dino/blob/de9ee3df6cf39fac952ab558447af1fa1365362a/vision_transformer.py#L174-L194, and + - https://github.com/facebookresearch/dinov2/blob/e1277af2ba9496fbadf7aec6eba56e8d882d1e35/dinov2/models/vision_transformer.py#L179-L211 + """ + + num_patches = embeddings.shape[1] - 1 + num_positions = self.position_embedding.shape[1] - 1 + + # always interpolate when tracing to ensure the exported model works for dynamic input shapes + if not torch.jit.is_tracing() and num_patches == num_positions and height == width: + return self.position_embedding + + class_pos_embed = self.position_embedding[:, :1] + patch_pos_embed = self.position_embedding[:, 1:] + + dim = embeddings.shape[-1] + + new_height = height // self.patch_size + new_width = width // self.patch_size + + sqrt_num_positions = torch_int(num_positions**0.5) + patch_pos_embed = patch_pos_embed.reshape(1, sqrt_num_positions, sqrt_num_positions, dim) + patch_pos_embed = patch_pos_embed.permute(0, 3, 1, 2) + + patch_pos_embed = nn.functional.interpolate( + patch_pos_embed, + size=(new_height, new_width), + mode="bicubic", + align_corners=False, + ) + + patch_pos_embed = patch_pos_embed.permute(0, 2, 3, 1).view(1, -1, dim) + + return torch.cat((class_pos_embed, patch_pos_embed), dim=1) + + def forward(self, pixel_values: torch.FloatTensor, interpolate_pos_encoding: bool = False) -> torch.Tensor: + batch_size, _, height, width = pixel_values.shape + target_dtype = self.patch_embedding.weight.dtype + patch_embeds = self.patch_embedding(pixel_values.to(dtype=target_dtype)) # shape = [*, width, grid, grid] + patch_embeds = patch_embeds.flatten(2).transpose(1, 2) + class_embeds = self.class_embedding.expand(batch_size, 1, -1).to(target_dtype) + embeddings = torch.cat([class_embeds, patch_embeds], dim=1) + if interpolate_pos_encoding: + position_embedding = self.interpolate_pos_encoding(embeddings, height, width) + else: + position_embedding = self.position_embedding + embeddings = embeddings + position_embedding[:, : embeddings.size(1), :].to(target_dtype) + return embeddings + + +class InstructBlipVideoAttention(nn.Module): + """Multi-headed attention from 'Attention Is All You Need' paper""" + + def __init__(self, config): + super().__init__() + self.config = config + self.embed_dim = config.hidden_size + self.num_heads = config.num_attention_heads + self.head_dim = self.embed_dim // self.num_heads + if self.head_dim * self.num_heads != self.embed_dim: + raise ValueError( + f"embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim} and `num_heads`:" + f" {self.num_heads})." + ) + self.scale = self.head_dim**-0.5 + self.dropout = nn.Dropout(config.attention_dropout) + + # small tweak here compared to CLIP, no bias here + self.qkv = nn.Linear(self.embed_dim, 3 * self.embed_dim, bias=False) + + if config.qkv_bias: + q_bias = nn.Parameter(torch.zeros(self.embed_dim)) + v_bias = nn.Parameter(torch.zeros(self.embed_dim)) + else: + q_bias = None + v_bias = None + + if q_bias is not None: + qkv_bias = torch.cat((q_bias, torch.zeros_like(v_bias, requires_grad=False), v_bias)) + self.qkv.bias = nn.Parameter(qkv_bias) + + self.projection = nn.Linear(self.embed_dim, self.embed_dim) + + def _shape(self, tensor: torch.Tensor, seq_len: int, bsz: int): + return tensor.view(bsz, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous() + + def forward( + self, + hidden_states: torch.Tensor, + head_mask: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]: + """Input shape: Batch x Time x Channel""" + + bsz, tgt_len, embed_dim = hidden_states.size() + + mixed_qkv = self.qkv(hidden_states) + + mixed_qkv = mixed_qkv.reshape(bsz, tgt_len, 3, self.num_heads, embed_dim // self.num_heads).permute( + 2, 0, 3, 1, 4 + ) + query_states, key_states, value_states = mixed_qkv[0], mixed_qkv[1], mixed_qkv[2] + + # Take the dot product between "query" and "key" to get the raw attention scores. + attention_scores = torch.matmul(query_states, key_states.transpose(-1, -2)) + + attention_scores = attention_scores * self.scale + + # Normalize the attention scores to probabilities. + attention_probs = nn.functional.softmax(attention_scores, dim=-1) + + # This is actually dropping out entire tokens to attend to, which might + # seem a bit unusual, but is taken from the original Transformer paper. + attention_probs = self.dropout(attention_probs) + + # Mask heads if we want to + if head_mask is not None: + attention_probs = attention_probs * head_mask + + context_layer = torch.matmul(attention_probs, value_states).permute(0, 2, 1, 3) + + new_context_layer_shape = context_layer.size()[:-2] + (self.embed_dim,) + context_layer = context_layer.reshape(new_context_layer_shape) + + output = self.projection(context_layer) + + outputs = (output, attention_probs) if output_attentions else (output, None) + + return outputs + + +class InstructBlipVideoMLP(nn.Module): + def __init__(self, config): + super().__init__() + self.config = config + self.activation_fn = ACT2FN[config.hidden_act] + self.fc1 = nn.Linear(config.hidden_size, config.intermediate_size) + self.fc2 = nn.Linear(config.intermediate_size, config.hidden_size) + + def forward(self, hidden_states: torch.Tensor) -> torch.Tensor: + hidden_states = self.fc1(hidden_states) + hidden_states = self.activation_fn(hidden_states) + hidden_states = self.fc2(hidden_states) + return hidden_states + + +class InstructBlipVideoEncoderLayer(nn.Module): + def __init__(self, config: InstructBlipVideoConfig): + super().__init__() + self.embed_dim = config.hidden_size + self.self_attn = InstructBlipVideoAttention(config) + self.layer_norm1 = nn.LayerNorm(self.embed_dim, eps=config.layer_norm_eps) + self.mlp = InstructBlipVideoMLP(config) + self.layer_norm2 = nn.LayerNorm(self.embed_dim, eps=config.layer_norm_eps) + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: torch.Tensor, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.FloatTensor]: + """ + Args: + hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)` + attention_mask (`torch.FloatTensor`): attention mask of size + `(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values. + `(config.encoder_attention_heads,)`. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + """ + residual = hidden_states + + hidden_states = self.layer_norm1(hidden_states) + hidden_states, attn_weights = self.self_attn( + hidden_states=hidden_states, + head_mask=attention_mask, + output_attentions=output_attentions, + ) + hidden_states = hidden_states + residual + residual = hidden_states + hidden_states = self.layer_norm2(hidden_states) + hidden_states = self.mlp(hidden_states) + + hidden_states = hidden_states + residual + + outputs = (hidden_states,) + + if output_attentions: + outputs += (attn_weights,) + + return outputs + + +class InstructBlipVideoPreTrainedModel(PreTrainedModel): + """ + An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained + models. + """ + + config_class = InstructBlipVideoConfig + base_model_prefix = "blip" + supports_gradient_checkpointing = True + + _no_split_modules = [ + "InstructBlipVideoQFormerEmbeddings", + "InstructBlipVideoAttention", + "InstructBlipVideoQFormerMultiHeadAttention", + "InstructBlipVideoQFormerSelfOutput", + ] + + def _init_weights(self, module): + """Initialize the weights""" + factor = self.config.initializer_range + if isinstance(module, nn.Conv2d) or isinstance(module, nn.Embedding) or isinstance(module, nn.Linear): + module.weight.data.normal_(mean=0.0, std=factor) + if hasattr(module, "bias") and module.bias is not None: + module.bias.data.zero_() + + if isinstance(module, InstructBlipVideoVisionEmbeddings): + if hasattr(self.config, "vision_config") and not isinstance(self.config, InstructBlipVideoVisionConfig): + factor = self.config.vision_config.initializer_range + nn.init.trunc_normal_(module.position_embedding, mean=0.0, std=factor) + nn.init.trunc_normal_(module.class_embedding, mean=0.0, std=factor) + + elif isinstance(module, nn.LayerNorm): + module.bias.data.zero_() + module.weight.data.fill_(1.0) + elif isinstance(module, nn.Linear) and module.bias is not None: + module.bias.data.zero_() + + +class InstructBlipVideoEncoder(nn.Module): + """ + Transformer encoder consisting of `config.num_hidden_layers` self attention layers. Each layer is a + [`InstructBlipVideoEncoderLayer`]. + + Args: + config (`InstructBlipVideoConfig`): + The corresponding vision configuration for the `InstructBlipVideoEncoder`. + """ + + def __init__(self, config: InstructBlipVideoConfig): + super().__init__() + self.config = config + self.layers = nn.ModuleList([InstructBlipVideoEncoderLayer(config) for _ in range(config.num_hidden_layers)]) + self.gradient_checkpointing = False + + def forward( + self, + inputs_embeds, + attention_mask: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, BaseModelOutput]: + r""" + Args: + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + Embedded representation of the inputs. Should be float, not int tokens. + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors + for more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + encoder_states = () if output_hidden_states else None + all_attentions = () if output_attentions else None + + hidden_states = inputs_embeds + for idx, encoder_layer in enumerate(self.layers): + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + if self.gradient_checkpointing and self.training: + layer_outputs = self._gradient_checkpointing_func( + encoder_layer.__call__, + hidden_states, + attention_mask, + output_attentions, + ) + else: + layer_outputs = encoder_layer( + hidden_states, + attention_mask, + output_attentions=output_attentions, + ) + + hidden_states = layer_outputs[0] + + if output_attentions: + all_attentions = all_attentions + (layer_outputs[1],) + + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + + if not return_dict: + return tuple(v for v in [hidden_states, encoder_states, all_attentions] if v is not None) + return BaseModelOutput( + last_hidden_state=hidden_states, hidden_states=encoder_states, attentions=all_attentions + ) + + +INSTRUCTBLIPVIDEO_VISION_INPUTS_DOCSTRING = r""" + Args: + pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`): + Pixel values. Pixel values can be obtained using [`InstructBlipVideoProcessor`]. See + [`InstructBlipVideoProcessor.__call__`] for details. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + interpolate_pos_encoding (`bool`, *optional*, defaults to `False`): + Whether to interpolate the pre-trained position encodings. +""" + + +class InstructBlipVideoVisionModel(InstructBlipVideoPreTrainedModel): + main_input_name = "pixel_values" + config_class = InstructBlipVideoVisionConfig + + def __init__(self, config: InstructBlipVideoVisionConfig): + super().__init__(config) + self.config = config + embed_dim = config.hidden_size + + self.embeddings = InstructBlipVideoVisionEmbeddings(config) + self.encoder = InstructBlipVideoEncoder(config) + self.post_layernorm = nn.LayerNorm(embed_dim, eps=config.layer_norm_eps) + + self.post_init() + + @add_start_docstrings_to_model_forward(INSTRUCTBLIPVIDEO_VISION_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=BaseModelOutputWithPooling, config_class=InstructBlipVideoVisionConfig) + def forward( + self, + pixel_values: Optional[torch.FloatTensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + interpolate_pos_encoding: bool = False, + ) -> Union[Tuple, BaseModelOutputWithPooling]: + r""" + Returns: + + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if pixel_values is None: + raise ValueError("You have to specify pixel_values") + + hidden_states = self.embeddings(pixel_values, interpolate_pos_encoding=interpolate_pos_encoding) + + encoder_outputs = self.encoder( + inputs_embeds=hidden_states, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + + last_hidden_state = encoder_outputs[0] + last_hidden_state = self.post_layernorm(last_hidden_state) + + pooled_output = last_hidden_state[:, 0, :] + pooled_output = self.post_layernorm(pooled_output) + + if not return_dict: + return (last_hidden_state, pooled_output) + encoder_outputs[1:] + + return BaseModelOutputWithPooling( + last_hidden_state=last_hidden_state, + pooler_output=pooled_output, + hidden_states=encoder_outputs.hidden_states, + attentions=encoder_outputs.attentions, + ) + + def get_input_embeddings(self): + return self.embeddings + + +class InstructBlipVideoQFormerMultiHeadAttention(nn.Module): + def __init__(self, config, is_cross_attention=False): + super().__init__() + self.config = config + if config.hidden_size % config.num_attention_heads != 0 and not hasattr(config, "embedding_size"): + raise ValueError( + "The hidden size (%d) is not a multiple of the number of attention heads (%d)" + % (config.hidden_size, config.num_attention_heads) + ) + + self.num_attention_heads = config.num_attention_heads + self.attention_head_size = int(config.hidden_size / config.num_attention_heads) + self.all_head_size = self.num_attention_heads * self.attention_head_size + + self.query = nn.Linear(config.hidden_size, self.all_head_size) + if is_cross_attention: + self.key = nn.Linear(config.encoder_hidden_size, self.all_head_size) + self.value = nn.Linear(config.encoder_hidden_size, self.all_head_size) + else: + self.key = nn.Linear(config.hidden_size, self.all_head_size) + self.value = nn.Linear(config.hidden_size, self.all_head_size) + + self.dropout = nn.Dropout(config.attention_probs_dropout_prob) + self.position_embedding_type = getattr(config, "position_embedding_type", "absolute") + if self.position_embedding_type == "relative_key" or self.position_embedding_type == "relative_key_query": + self.max_position_embeddings = config.max_position_embeddings + self.distance_embedding = nn.Embedding(2 * config.max_position_embeddings - 1, self.attention_head_size) + self.save_attention = False + + def save_attn_gradients(self, attn_gradients): + self.attn_gradients = attn_gradients + + def get_attn_gradients(self): + return self.attn_gradients + + def save_attention_map(self, attention_map): + self.attention_map = attention_map + + def get_attention_map(self): + return self.attention_map + + def transpose_for_scores(self, x): + new_x_shape = x.size()[:-1] + (self.num_attention_heads, self.attention_head_size) + x = x.view(*new_x_shape) + return x.permute(0, 2, 1, 3) + + def forward( + self, + hidden_states, + attention_mask=None, + head_mask=None, + encoder_hidden_states=None, + encoder_attention_mask=None, + past_key_value=None, + output_attentions=False, + ): + # If this is instantiated as a cross-attention module, the keys + # and values come from an encoder; the attention mask needs to be + # such that the encoder's padding tokens are not attended to. + is_cross_attention = encoder_hidden_states is not None + + if is_cross_attention: + key_layer = self.transpose_for_scores(self.key(encoder_hidden_states)) + value_layer = self.transpose_for_scores(self.value(encoder_hidden_states)) + attention_mask = encoder_attention_mask + elif past_key_value is not None: + key_layer = self.transpose_for_scores(self.key(hidden_states)) + value_layer = self.transpose_for_scores(self.value(hidden_states)) + key_layer = torch.cat([past_key_value[0], key_layer], dim=2) + value_layer = torch.cat([past_key_value[1], value_layer], dim=2) + else: + key_layer = self.transpose_for_scores(self.key(hidden_states)) + value_layer = self.transpose_for_scores(self.value(hidden_states)) + + mixed_query_layer = self.query(hidden_states) + + query_layer = self.transpose_for_scores(mixed_query_layer) + + past_key_value = (key_layer, value_layer) + + # Take the dot product between "query" and "key" to get the raw attention scores. + attention_scores = torch.matmul(query_layer, key_layer.transpose(-1, -2)) + + if self.position_embedding_type == "relative_key" or self.position_embedding_type == "relative_key_query": + seq_length = hidden_states.size()[1] + position_ids_l = torch.arange(seq_length, dtype=torch.long, device=hidden_states.device).view(-1, 1) + position_ids_r = torch.arange(seq_length, dtype=torch.long, device=hidden_states.device).view(1, -1) + distance = position_ids_l - position_ids_r + positional_embedding = self.distance_embedding(distance + self.max_position_embeddings - 1) + positional_embedding = positional_embedding.to(dtype=query_layer.dtype) # fp16 compatibility + + if self.position_embedding_type == "relative_key": + relative_position_scores = torch.einsum("bhld,lrd->bhlr", query_layer, positional_embedding) + attention_scores = attention_scores + relative_position_scores + elif self.position_embedding_type == "relative_key_query": + relative_position_scores_query = torch.einsum("bhld,lrd->bhlr", query_layer, positional_embedding) + relative_position_scores_key = torch.einsum("bhrd,lrd->bhlr", key_layer, positional_embedding) + attention_scores = attention_scores + relative_position_scores_query + relative_position_scores_key + + attention_scores = attention_scores / math.sqrt(self.attention_head_size) + attention_scores_dtype = attention_scores.dtype + + if attention_mask is not None: + # Apply the attention mask is (precomputed for all layers in BertModel forward() function) + attention_scores = attention_scores + attention_mask + + # Normalize the attention scores to probabilities. + attention_probs = nn.Softmax(dim=-1)(attention_scores).to(attention_scores_dtype) + + if is_cross_attention and self.save_attention: + self.save_attention_map(attention_probs) + attention_probs.register_hook(self.save_attn_gradients) + + # This is actually dropping out entire tokens to attend to, which might + # seem a bit unusual, but is taken from the original Transformer paper. + attention_probs_dropped = self.dropout(attention_probs) + + # Mask heads if we want to + if head_mask is not None: + attention_probs_dropped = attention_probs_dropped * head_mask + + context_layer = torch.matmul(attention_probs_dropped, value_layer) + + context_layer = context_layer.permute(0, 2, 1, 3).contiguous() + new_context_layer_shape = context_layer.size()[:-2] + (self.all_head_size,) + context_layer = context_layer.view(*new_context_layer_shape) + + outputs = (context_layer, attention_probs) if output_attentions else (context_layer,) + + outputs = outputs + (past_key_value,) + return outputs + + +class InstructBlipVideoQFormerSelfOutput(nn.Module): + def __init__(self, config): + super().__init__() + self.dense = nn.Linear(config.hidden_size, config.hidden_size) + self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.dropout = nn.Dropout(config.hidden_dropout_prob) + + def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor: + hidden_states = self.dense(hidden_states) + hidden_states = self.dropout(hidden_states) + hidden_states = self.LayerNorm(hidden_states + input_tensor) + return hidden_states + + +class InstructBlipVideoQFormerAttention(nn.Module): + def __init__(self, config, is_cross_attention=False): + super().__init__() + self.attention = InstructBlipVideoQFormerMultiHeadAttention(config, is_cross_attention) + self.output = InstructBlipVideoQFormerSelfOutput(config) + self.pruned_heads = set() + + def prune_heads(self, heads): + if len(heads) == 0: + return + heads, index = find_pruneable_heads_and_indices( + heads, self.attention.num_attention_heads, self.attention.attention_head_size, self.pruned_heads + ) + + # Prune linear layers + self.attention.query = prune_linear_layer(self.attention.query, index) + self.attention.key = prune_linear_layer(self.attention.key, index) + self.attention.value = prune_linear_layer(self.attention.value, index) + self.output.dense = prune_linear_layer(self.output.dense, index, dim=1) + + # Update hyper params and store pruned heads + self.attention.num_attention_heads = self.attention.num_attention_heads - len(heads) + self.attention.all_head_size = self.attention.attention_head_size * self.attention.num_attention_heads + self.pruned_heads = self.pruned_heads.union(heads) + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.FloatTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + encoder_hidden_states: Optional[torch.FloatTensor] = None, + encoder_attention_mask: Optional[torch.FloatTensor] = None, + past_key_value: Optional[Tuple[Tuple[torch.FloatTensor]]] = None, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.Tensor]: + self_outputs = self.attention( + hidden_states, + attention_mask, + head_mask, + encoder_hidden_states, + encoder_attention_mask, + past_key_value, + output_attentions, + ) + attention_output = self.output(self_outputs[0], hidden_states) + outputs = (attention_output,) + self_outputs[1:] # add attentions if we output them + return outputs + + +class InstructBlipVideoQFormerIntermediate(nn.Module): + def __init__(self, config): + super().__init__() + self.dense = nn.Linear(config.hidden_size, config.intermediate_size) + if isinstance(config.hidden_act, str): + self.intermediate_act_fn = ACT2FN[config.hidden_act] + else: + self.intermediate_act_fn = config.hidden_act + + def forward(self, hidden_states: torch.Tensor) -> torch.Tensor: + hidden_states = self.dense(hidden_states) + hidden_states = self.intermediate_act_fn(hidden_states) + return hidden_states + + +class InstructBlipVideoQFormerOutput(nn.Module): + def __init__(self, config): + super().__init__() + self.dense = nn.Linear(config.intermediate_size, config.hidden_size) + self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.dropout = nn.Dropout(config.hidden_dropout_prob) + + def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor: + hidden_states = self.dense(hidden_states) + hidden_states = self.dropout(hidden_states) + hidden_states = self.LayerNorm(hidden_states + input_tensor) + return hidden_states + + +class InstructBlipVideoQFormerLayer(nn.Module): + def __init__(self, config, layer_idx): + super().__init__() + self.chunk_size_feed_forward = config.chunk_size_feed_forward + self.seq_len_dim = 1 + self.attention = InstructBlipVideoQFormerAttention(config) + + self.layer_idx = layer_idx + + if layer_idx % config.cross_attention_frequency == 0: + self.crossattention = InstructBlipVideoQFormerAttention(config, is_cross_attention=True) + self.has_cross_attention = True + else: + self.has_cross_attention = False + + self.intermediate = InstructBlipVideoQFormerIntermediate(config) + self.output = InstructBlipVideoQFormerOutput(config) + + self.intermediate_query = InstructBlipVideoQFormerIntermediate(config) + self.output_query = InstructBlipVideoQFormerOutput(config) + + def forward( + self, + hidden_states, + attention_mask=None, + head_mask=None, + encoder_hidden_states=None, + encoder_attention_mask=None, + past_key_value=None, + output_attentions=False, + query_length=0, + ): + # decoder uni-directional self-attention cached key/values tuple is at positions 1,2 + self_attn_past_key_value = past_key_value[:2] if past_key_value is not None else None + self_attention_outputs = self.attention( + hidden_states, + attention_mask, + head_mask, + output_attentions=output_attentions, + past_key_value=self_attn_past_key_value, + ) + attention_output = self_attention_outputs[0] + outputs = self_attention_outputs[1:-1] + + present_key_value = self_attention_outputs[-1] + + if query_length > 0: + query_attention_output = attention_output[:, :query_length, :] + + if self.has_cross_attention: + if encoder_hidden_states is None: + raise ValueError("encoder_hidden_states must be given for cross-attention layers") + cross_attention_outputs = self.crossattention( + query_attention_output, + attention_mask, + head_mask, + encoder_hidden_states, + encoder_attention_mask, + output_attentions=output_attentions, + ) + query_attention_output = cross_attention_outputs[0] + # add cross attentions if we output attention weights + outputs = outputs + cross_attention_outputs[1:-1] + + layer_output = apply_chunking_to_forward( + self.feed_forward_chunk_query, + self.chunk_size_feed_forward, + self.seq_len_dim, + query_attention_output, + ) + + if attention_output.shape[1] > query_length: + layer_output_text = apply_chunking_to_forward( + self.feed_forward_chunk, + self.chunk_size_feed_forward, + self.seq_len_dim, + attention_output[:, query_length:, :], + ) + layer_output = torch.cat([layer_output, layer_output_text], dim=1) + else: + layer_output = apply_chunking_to_forward( + self.feed_forward_chunk, + self.chunk_size_feed_forward, + self.seq_len_dim, + attention_output, + ) + outputs = (layer_output,) + outputs + + outputs = outputs + (present_key_value,) + + return outputs + + def feed_forward_chunk(self, attention_output): + intermediate_output = self.intermediate(attention_output) + layer_output = self.output(intermediate_output, attention_output) + return layer_output + + def feed_forward_chunk_query(self, attention_output): + intermediate_output = self.intermediate_query(attention_output) + layer_output = self.output_query(intermediate_output, attention_output) + return layer_output + + +class InstructBlipVideoQFormerEncoder(nn.Module): + def __init__(self, config): + super().__init__() + self.config = config + self.layer = nn.ModuleList( + [InstructBlipVideoQFormerLayer(config, layer_idx) for layer_idx in range(config.num_hidden_layers)] + ) + self.gradient_checkpointing = False + + def forward( + self, + hidden_states, + attention_mask=None, + head_mask=None, + encoder_hidden_states=None, + encoder_attention_mask=None, + past_key_values=None, + use_cache=None, + output_attentions=False, + output_hidden_states=False, + return_dict=True, + query_length=0, + ): + all_hidden_states = () if output_hidden_states else None + all_self_attentions = () if output_attentions else None + all_cross_attentions = () if output_attentions else None + + next_decoder_cache = () if use_cache else None + + for i in range(self.config.num_hidden_layers): + layer_module = self.layer[i] + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + layer_head_mask = head_mask[i] if head_mask is not None else None + past_key_value = past_key_values[i] if past_key_values is not None else None + + if getattr(self.config, "gradient_checkpointing", False) and self.training: + if use_cache: + logger.warning( + "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..." + ) + use_cache = False + layer_outputs = self._gradient_checkpointing_func( + layer_module.__call__, + hidden_states, + attention_mask, + layer_head_mask, + encoder_hidden_states, + encoder_attention_mask, + ) + else: + layer_outputs = layer_module( + hidden_states, + attention_mask, + layer_head_mask, + encoder_hidden_states, + encoder_attention_mask, + past_key_value, + output_attentions, + query_length, + ) + + hidden_states = layer_outputs[0] + if use_cache: + next_decoder_cache += (layer_outputs[-1],) + if output_attentions: + all_self_attentions = all_self_attentions + (layer_outputs[1],) + if layer_module.has_cross_attention: + all_cross_attentions = all_cross_attentions + (layer_outputs[2],) + + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + if not return_dict: + return tuple( + v + for v in [ + hidden_states, + next_decoder_cache, + all_hidden_states, + all_self_attentions, + all_cross_attentions, + ] + if v is not None + ) + return BaseModelOutputWithPastAndCrossAttentions( + last_hidden_state=hidden_states, + past_key_values=next_decoder_cache, + hidden_states=all_hidden_states, + attentions=all_self_attentions, + cross_attentions=all_cross_attentions, + ) + + +class InstructBlipVideoQFormerEmbeddings(nn.Module): + """Construct the embeddings from word and position embeddings.""" + + def __init__(self, config): + super().__init__() + self.word_embeddings = nn.Embedding(config.vocab_size, config.hidden_size, padding_idx=config.pad_token_id) + self.position_embeddings = nn.Embedding(config.max_position_embeddings, config.hidden_size) + + self.layernorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.dropout = nn.Dropout(config.hidden_dropout_prob) + + # position_ids (1, len position emb) is contiguous in memory and exported when serialized + self.register_buffer( + "position_ids", torch.arange(config.max_position_embeddings).expand((1, -1)), persistent=False + ) + self.position_embedding_type = getattr(config, "position_embedding_type", "absolute") + + self.config = config + + def forward( + self, + input_ids=None, + position_ids=None, + query_embeds=None, + past_key_values_length=0, + ): + if input_ids is not None: + seq_length = input_ids.size()[1] + else: + seq_length = 0 + + if position_ids is None: + position_ids = self.position_ids[:, past_key_values_length : seq_length + past_key_values_length].clone() + + if input_ids is not None: + embeddings = self.word_embeddings(input_ids) + if self.position_embedding_type == "absolute": + position_embeddings = self.position_embeddings(position_ids.to(embeddings.device)) + embeddings = embeddings + position_embeddings + + if query_embeds is not None: + embeddings = torch.cat((query_embeds, embeddings), dim=1) + else: + embeddings = query_embeds + + embeddings = embeddings.to(self.layernorm.weight.dtype) + embeddings = self.layernorm(embeddings) + embeddings = self.dropout(embeddings) + return embeddings + + +class InstructBlipVideoQFormerModel(InstructBlipVideoPreTrainedModel): + """ + Querying Transformer (Q-Former), used in InstructBlipVideo. Slightly modified from BLIP-2 as it also takes the + instruction as input. + """ + + def __init__(self, config: InstructBlipVideoQFormerConfig): + super().__init__(config) + self.config = config + + self.embeddings = InstructBlipVideoQFormerEmbeddings(config) + + self.encoder = InstructBlipVideoQFormerEncoder(config) + + self.post_init() + + def get_input_embeddings(self): + return self.embeddings.word_embeddings + + def set_input_embeddings(self, value): + self.embeddings.word_embeddings = value + + def _prune_heads(self, heads_to_prune): + """ + Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base + class PreTrainedModel + """ + for layer, heads in heads_to_prune.items(): + self.encoder.layer[layer].attention.prune_heads(heads) + + def get_extended_attention_mask( + self, + attention_mask: torch.Tensor, + input_shape: Tuple[int], + device: torch.device, + has_query: bool = False, + ) -> torch.Tensor: + """ + Makes broadcastable attention and causal masks so that future and masked tokens are ignored. + + Arguments: + attention_mask (`torch.Tensor`): + Mask with ones indicating tokens to attend to, zeros for tokens to ignore. + input_shape (`Tuple[int]`): + The shape of the input to the model. + device: (`torch.device`): + The device of the input to the model. + + Returns: + `torch.Tensor` The extended attention mask, with a the same dtype as `attention_mask.dtype`. + """ + # We can provide a self-attention mask of dimensions [batch_size, from_seq_length, to_seq_length] + # ourselves in which case we just need to make it broadcastable to all heads. + if attention_mask.dim() == 3: + extended_attention_mask = attention_mask[:, None, :, :] + elif attention_mask.dim() == 2: + # Provided a padding mask of dimensions [batch_size, seq_length] + # - the model is an encoder, so make the mask broadcastable to [batch_size, num_heads, seq_length, seq_length] + extended_attention_mask = attention_mask[:, None, None, :] + else: + raise ValueError( + f"Wrong shape for input_ids (shape {input_shape}) or attention_mask (shape {attention_mask.shape})", + ) + + # Since attention_mask is 1.0 for positions we want to attend and 0.0 for + # masked positions, this operation will create a tensor which is 0.0 for + # positions we want to attend and -10000.0 for masked positions. + # Since we are adding it to the raw scores before the softmax, this is + # effectively the same as removing these entirely. + extended_attention_mask = extended_attention_mask.to(dtype=self.dtype) # fp16 compatibility + extended_attention_mask = (1.0 - extended_attention_mask) * -10000.0 + return extended_attention_mask + + def forward( + self, + input_ids: torch.LongTensor, + attention_mask: Optional[torch.FloatTensor] = None, + position_ids: Optional[torch.LongTensor] = None, + query_embeds: Optional[torch.Tensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + encoder_hidden_states: Optional[torch.FloatTensor] = None, + encoder_attention_mask: Optional[torch.FloatTensor] = None, + past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple[torch.FloatTensor], BaseModelOutputWithPoolingAndCrossAttentions]: + r""" + encoder_hidden_states (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Sequence of hidden-states at the output of the last layer of the encoder. Used in the cross-attention if + the model is configured as a decoder. + encoder_attention_mask (`torch.FloatTensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on the padding token indices of the encoder input. This mask is used in + the cross-attention if the model is configured as a decoder. Mask values selected in `[0, 1]`: + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + past_key_values (`tuple(tuple(torch.FloatTensor))` of length `config.n_layers` with each tuple having 4 tensors of: + shape `(batch_size, num_heads, sequence_length - 1, embed_size_per_head)`): Contains precomputed key and + value hidden states of the attention blocks. Can be used to speed up decoding. If `past_key_values` are + used, the user can optionally input only the last `decoder_input_ids` (those that don't have their past key + value states given to this model) of shape `(batch_size, 1)` instead of all `decoder_input_ids` of shape + `(batch_size, sequence_length)`. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if input_ids is None and query_embeds is None: + raise ValueError("You have to specify query_embeds when input_ids is None") + + # past_key_values_length + past_key_values_length = ( + past_key_values[0][0].shape[2] - self.config.query_length if past_key_values is not None else 0 + ) + + query_length = query_embeds.shape[1] if query_embeds is not None else 0 + + embedding_output = self.embeddings( + input_ids=input_ids, + position_ids=position_ids, + query_embeds=query_embeds, + past_key_values_length=past_key_values_length, + ) + + input_shape = embedding_output.size()[:-1] + batch_size, seq_length = input_shape + device = embedding_output.device + + if attention_mask is None: + attention_mask = torch.ones(((batch_size, seq_length + past_key_values_length)), device=device) + + # We can provide a self-attention mask of dimensions [batch_size, from_seq_length, to_seq_length] + # ourselves in which case we just need to make it broadcastable to all heads. + extended_attention_mask = self.get_extended_attention_mask(attention_mask, input_shape, device) + + # If a 2D or 3D attention mask is provided for the cross-attention + # we need to make broadcastable to [batch_size, num_heads, seq_length, seq_length] + if encoder_hidden_states is not None: + if isinstance(encoder_hidden_states, list): + encoder_batch_size, encoder_sequence_length, _ = encoder_hidden_states[0].size() + else: + encoder_batch_size, encoder_sequence_length, _ = encoder_hidden_states.size() + encoder_hidden_shape = (encoder_batch_size, encoder_sequence_length) + + if isinstance(encoder_attention_mask, list): + encoder_extended_attention_mask = [self.invert_attention_mask(mask) for mask in encoder_attention_mask] + elif encoder_attention_mask is None: + encoder_attention_mask = torch.ones(encoder_hidden_shape, device=device) + encoder_extended_attention_mask = self.invert_attention_mask(encoder_attention_mask) + else: + encoder_extended_attention_mask = self.invert_attention_mask(encoder_attention_mask) + else: + encoder_extended_attention_mask = None + + # Prepare head mask if needed + # 1.0 in head_mask indicate we keep the head + # attention_probs has shape bsz x n_heads x N x N + # input head_mask has shape [num_heads] or [num_hidden_layers x num_heads] + # and head_mask is converted to shape [num_hidden_layers x batch x num_heads x seq_length x seq_length] + head_mask = self.get_head_mask(head_mask, self.config.num_hidden_layers) + + encoder_outputs = self.encoder( + embedding_output, + attention_mask=extended_attention_mask, + head_mask=head_mask, + encoder_hidden_states=encoder_hidden_states, + encoder_attention_mask=encoder_extended_attention_mask, + past_key_values=past_key_values, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + query_length=query_length, + ) + sequence_output = encoder_outputs[0] + pooled_output = sequence_output[:, 0, :] + + if not return_dict: + return (sequence_output, pooled_output) + encoder_outputs[1:] + + return BaseModelOutputWithPoolingAndCrossAttentions( + last_hidden_state=sequence_output, + pooler_output=pooled_output, + past_key_values=encoder_outputs.past_key_values, + hidden_states=encoder_outputs.hidden_states, + attentions=encoder_outputs.attentions, + cross_attentions=encoder_outputs.cross_attentions, + ) + + +INSTRUCTBLIPVIDEO_START_DOCSTRING = r""" + This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the + library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads + etc.) + + This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. + Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage + and behavior. + + Parameters: + config ([`InstructBlipVideoConfig`]): Model configuration class with all the parameters of the model. + Initializing with a config file does not load the weights associated with the model, only the + configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + +INSTRUCTBLIPVIDEO_INPUTS_DOCSTRING = r""" + Args: + pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`): + Pixel values. Pixel values can be obtained using [`InstructBlipVideoProcessor`]. See + [`InstructBlipVideoProcessor.__call__`] for details. + + qformer_input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Indices of input sequence tokens in the vocabulary of the Q-Former. Input tokens can optionally be provided + to serve as text prompt, which the Q-Former model will encode. + + Indices can be obtained using [`InstructBlipVideoProcessor`]. See [`InstructBlipVideoProcessor.__call__`] for + details. + + [What are input IDs?](../glossary#input-ids) + + qformer_attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + + input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Indices of input sequence tokens in the vocabulary of the language model. Input tokens can optionally be + provided to serve as text prompt, which the language model can continue. + + Indices can be obtained using [`InstructBlipVideoProcessor`]. See [`InstructBlipVideoProcessor.__call__`] for + details. + + [What are input IDs?](../glossary#input-ids) + + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + + decoder_input_ids (`torch.LongTensor` of shape `(batch_size, target_sequence_length)`, *optional*): + Indices of decoder input sequence tokens in the vocabulary of the language model. Only relevant in case an + encoder-decoder language model (like T5) is used. + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for details. [What are decoder input IDs?](../glossary#decoder-input-ids) + + decoder_attention_mask (`torch.BoolTensor` of shape `(batch_size, target_sequence_length)`, *optional*): + Default behavior: generate a tensor that ignores pad tokens in `decoder_input_ids`. Causal mask will also + be used by default. + + Only relevant in case an encoder-decoder language model (like T5) is used. + + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + interpolate_pos_encoding (`bool`, *optional*, defaults to `False`): + Whether to interpolate the pre-trained position encodings. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). +""" + + +@add_start_docstrings( + """ + InstructBlipVideo Model for generating text given an image and an optional text prompt. The model consists of a vision + encoder, Querying Transformer (Q-Former) and a language model. + + One can optionally pass `input_ids` to the model, which serve as a text prompt, to make the language model continue + the prompt. Otherwise, the language model starts generating text from the [BOS] (beginning-of-sequence) token. + """, + INSTRUCTBLIPVIDEO_START_DOCSTRING, +) +class InstructBlipVideoForConditionalGeneration(InstructBlipVideoPreTrainedModel, GenerationMixin): + config_class = InstructBlipVideoConfig + main_input_name = "pixel_values" + _supports_cache_class = True + _supports_static_cache = True + _supports_quantized_cache = False # not all LM bacbones support (e.g. T5) + _keep_in_fp32_modules = ["query_tokens"] # TODO @ArthurZucker I don't know why this is required for FP8 + + def __init__(self, config: InstructBlipVideoConfig): + super().__init__(config) + + self.vision_model = InstructBlipVideoVisionModel(config.vision_config) + + self.query_tokens = nn.Parameter(torch.zeros(1, config.num_query_tokens, config.qformer_config.hidden_size)) + self.qformer = InstructBlipVideoQFormerModel(config.qformer_config) + + self.language_projection = nn.Linear(config.qformer_config.hidden_size, config.text_config.hidden_size) + + if config.use_decoder_only_language_model: + language_model = AutoModelForCausalLM.from_config(config.text_config) + else: + language_model = AutoModelForSeq2SeqLM.from_config(config.text_config) + + if language_model._no_split_modules is not None: + self._no_split_modules.extend(language_model._no_split_modules) + + if language_model._keep_in_fp32_modules is not None: + self._keep_in_fp32_modules.extend(language_model._keep_in_fp32_modules) + + self.language_model = language_model + + # Initialize weights and apply final processing + self.post_init() + + def get_input_embeddings(self): + return self.language_model.get_input_embeddings() + + def set_input_embeddings(self, value): + self.language_model.set_input_embeddings(value) + + def set_output_embeddings(self, new_embeddings): + self.language_model.set_output_embeddings(new_embeddings) + + def get_output_embeddings(self) -> nn.Module: + return self.language_model.get_output_embeddings() + + def get_encoder(self): + return self.language_model.get_encoder() + + def get_decoder(self): + return self.language_model.get_decoder() + + def _tie_weights(self): + if not self.config.use_decoder_only_language_model: + self.language_model.encoder.embed_tokens = self.language_model.shared + self.language_model.decoder.embed_tokens = self.language_model.shared + + def _preprocess_accelerate(self): + r""" + Some pre-processing hacks to make the model `accelerate` compatible. Check + https://github.com/huggingface/transformers/pull/21707 for more details. + """ + hf_device_map = self.hf_device_map + + if len(hf_device_map) > 1 and "language_model" not in hf_device_map and torch.cuda.device_count() > 1: + # warn users about unexpected behavior when using multi-GPU + InstructBlipVideo + `accelerate`. + logger.warning( + "The `language_model` is not in the `hf_device_map` dictionary and you are running your script" + " in a multi-GPU environment. this may lead to unexpected behavior when using `accelerate`." + " Please pass a `device_map` that contains `language_model` to remove this warning." + " Please refer to https://github.com/huggingface/blog/blob/main/accelerate-large-models.md for" + " more details on creating a `device_map` for large models.", + ) + + if hasattr(self.language_model, "_hf_hook"): + self.language_model._hf_hook.io_same_device = True # For `generate` compatibility + + @add_start_docstrings_to_model_forward(INSTRUCTBLIPVIDEO_INPUTS_DOCSTRING) + @replace_return_docstrings( + output_type=InstructBlipVideoForConditionalGenerationModelOutput, config_class=InstructBlipVideoVisionConfig + ) + def forward( + self, + pixel_values: torch.FloatTensor, + qformer_input_ids: torch.FloatTensor, + qformer_attention_mask: Optional[torch.LongTensor] = None, + input_ids: Optional[torch.FloatTensor] = None, + attention_mask: Optional[torch.LongTensor] = None, + decoder_input_ids: Optional[torch.LongTensor] = None, + decoder_attention_mask: Optional[torch.LongTensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + labels: Optional[torch.LongTensor] = None, + return_dict: Optional[bool] = None, + interpolate_pos_encoding: bool = False, + use_cache: Optional[bool] = None, + ) -> Union[Tuple, InstructBlipVideoForConditionalGenerationModelOutput]: + r""" + labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*): + Labels for computing the language modeling loss. Indices should be in `[-100, 0, ..., config.vocab_size - + 1]`. All labels set to `-100` are ignored (masked), the loss is only computed for labels in `[0, ..., + config.vocab_size]` + + Returns: + + Examples: + + ```python + >>> from transformers import InstructBlipVideoProcessor, InstructBlipVideoForConditionalGeneration + >>> import torch + >>> from huggingface_hub import hf_hub_download + >>> import av + >>> import numpy as np + + >>> def read_video_pyav(container, indices): + ... ''' + ... Decode the video with PyAV decoder. + ... Args: + ... container (`av.container.input.InputContainer`): PyAV container. + ... indices (`List[int]`): List of frame indices to decode. + ... Returns: + ... result (np.ndarray): np array of decoded frames of shape (num_frames, height, width, 3). + ... ''' + ... frames = [] + ... container.seek(0) + ... start_index = indices[0] + ... end_index = indices[-1] + ... for i, frame in enumerate(container.decode(video=0)): + ... if i > end_index: + ... break + ... if i >= start_index and i in indices: + ... frames.append(frame) + ... return np.stack([x.to_ndarray(format="rgb24") for x in frames]) + + >>> model = InstructBlipVideoForConditionalGeneration.from_pretrained("Salesforce/instructblip-vicuna-7b", device_map="auto") + >>> processor = InstructBlipVideoProcessor.from_pretrained("Salesforce/instructblip-vicuna-7b") + + >>> file_path = hf_hub_download( + ... repo_id="nielsr/video-demo", filename="eating_spaghetti.mp4", repo_type="dataset" + ... ) + >>> container = av.open(file_path) + + >>> # sample uniformly 4 frames from the videWhy is this video funny?o + >>> total_frames = container.streams.video[0].frames + >>> indices = np.arange(0, total_frames, total_frames / 4).astype(int) + >>> clip = read_video_pyav(container, indices) + + >>> prompt = "What is happening in the video?" + >>> inputs = processor(text=prompt, images=clip, return_tensors="pt").to(model.device) + + >>> outputs = model.generate( + ... **inputs, + ... do_sample=False, + ... num_beams=5, + ... max_length=256, + ... repetition_penalty=1.5, + ... length_penalty=1.0, + ... ) + >>> generated_text = processor.batch_decode(outputs, skip_special_tokens=True)[0].strip() + >>> print(generated_text) + "A person is eating a bowl of pasta, and they are using a fork to eat it. The person is sitting at a table, and the plate of pasta is on the table in front" + ```""" + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + # step 1: forward the images through the vision encoder, + # we process in a batched way, later unbatch it back (video has frames=4 always) + batch_size, frames, channel, height, width = pixel_values.shape + pixel_values = pixel_values.reshape(batch_size * frames, channel, height, width) + + vision_outputs = self.vision_model( + pixel_values=pixel_values, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + interpolate_pos_encoding=interpolate_pos_encoding, + ) + image_embeds = vision_outputs[0] + + # step 2: forward the query tokens through the QFormer, using the image embeddings for cross-attention + image_attention_mask = torch.ones(image_embeds.size()[:-1], dtype=torch.long, device=image_embeds.device) + + # difference with BLIP-2 here: we also feed the instruction prompt to the Q-Former + query_tokens = self.query_tokens.expand(image_embeds.shape[0], -1, -1) + query_attention_mask = torch.ones(query_tokens.size()[:-1], dtype=torch.long, device=image_embeds.device) + + if qformer_attention_mask is None: + qformer_attention_mask = torch.ones_like(qformer_input_ids) + + qformer_input_ids = qformer_input_ids.repeat_interleave(frames, dim=0) + qformer_attention_mask = qformer_attention_mask.repeat_interleave(frames, dim=0) + qformer_attention_mask = torch.cat([query_attention_mask, qformer_attention_mask], dim=1) + query_outputs = self.qformer( + input_ids=qformer_input_ids, + attention_mask=qformer_attention_mask, + query_embeds=query_tokens, + encoder_hidden_states=image_embeds, + encoder_attention_mask=image_attention_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + query_output = query_outputs[0][:, : query_tokens.size(1), :] + + # step 3: use the language model, conditioned on the query outputs and the prompt + language_model_inputs = self.language_projection(query_output) + + # unbatch inputs back, each video-frame gets `num_query_tokens` seq length + language_model_inputs = language_model_inputs.reshape(batch_size, self.config.num_query_tokens * frames, -1) + language_model_attention_mask = torch.ones( + language_model_inputs.size()[:-1], dtype=torch.long, device=language_model_inputs.device + ) + + inputs_embeds = self.language_model.get_input_embeddings()(input_ids) + if attention_mask is None: + attention_mask = torch.ones_like(input_ids) + + # if the model already has "video_token_index" then the input is expanded to account for image embeds + # otherwise we expand manually by concatenating + if getattr(self.config, "video_token_index", None) is not None: + special_image_mask = (input_ids == self.config.video_token_index).unsqueeze(-1).expand_as(inputs_embeds) + inputs_embeds[special_image_mask] = language_model_inputs.flatten().to(inputs_embeds.device) + else: + logger.warning_once( + "Expanding inputs for video tokens in InstructBLIPVideo should be done in processing. " + "Please follow instruction here (https://gist.github.com/zucchini-nlp/65f22892b054dc0d68228af56fbeaac2) to update your InstructBLIPVideo model. " + "Using processors without these attributes in the config is deprecated and will throw an error in v4.47." + ) + inputs_embeds = torch.cat([language_model_inputs, inputs_embeds.to(language_model_inputs.device)], dim=1) + attention_mask = torch.cat( + [language_model_attention_mask, attention_mask.to(language_model_attention_mask.device)], dim=1 + ) + + if self.config.use_decoder_only_language_model: + outputs = self.language_model( + inputs_embeds=inputs_embeds, + attention_mask=attention_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + use_cache=use_cache, + ) + logits = outputs.logits if return_dict else outputs[0] + loss = None + # we compute the loss here since we need to take into account the sequence length of the query embeds + if labels is not None: + labels = labels.to(logits.device) + logits = logits[:, -labels.size(1) :, :] + # Shift so that tokens < n predict n + shift_logits = logits[..., :-1, :].contiguous() + shift_labels = labels[..., 1:].contiguous().to(logits.device) + + # Flatten the tokens + loss_fct = CrossEntropyLoss(reduction="mean") + + loss = loss_fct(shift_logits.view(-1, self.config.text_config.vocab_size), shift_labels.view(-1)) + else: + outputs = self.language_model( + inputs_embeds=inputs_embeds, + attention_mask=attention_mask, + decoder_input_ids=decoder_input_ids, + decoder_attention_mask=decoder_attention_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + labels=labels, + use_cache=use_cache, + ) + loss = outputs.loss if return_dict else outputs[0] + logits = outputs.logits if return_dict else outputs[1] + + if not return_dict: + output = (logits, vision_outputs, query_outputs, outputs) + return ((loss,) + output) if loss is not None else output + + return InstructBlipVideoForConditionalGenerationModelOutput( + loss=loss, + logits=logits, + vision_outputs=vision_outputs, + qformer_outputs=query_outputs, + language_model_outputs=outputs, + ) + + @torch.no_grad() + def generate( + self, + pixel_values: torch.FloatTensor, + qformer_input_ids: Optional[torch.LongTensor] = None, + qformer_attention_mask: Optional[torch.LongTensor] = None, + input_ids: Optional[torch.LongTensor] = None, + attention_mask: Optional[torch.LongTensor] = None, + interpolate_pos_encoding: bool = False, + **generate_kwargs, + ) -> torch.LongTensor: + r""" + Overrides `generate` function to be able to use the model as a conditional generator. + + Args: + pixel_values (`torch.FloatTensor` of shape (batch_size, num_channels, height, width) or + (batch_size, num_frames, num_channels, height, width)): Input images or videos to be processed. + qformer_input_ids (`torch.LongTensor` of shape (batch_size, sequence_length), *optional*): + The sequence used as a prompt to be fed to the Q-Former module. + qformer_attention_mask (`torch.LongTensor` of shape (batch_size, sequence_length), *optional*): + Mask to avoid performing attention on padding token indices. + input_ids (`torch.LongTensor` of shape (batch_size, sequence_length), *optional*): + The sequence used as a prompt for the generation. + attention_mask (`torch.LongTensor` of shape (batch_size, sequence_length), *optional*): + Mask to avoid performing attention on padding token indices. + interpolate_pos_encoding (`bool`, *optional*, defaults to `False`): + Whether to interpolate the positional encoding of the image embeddings. + + Returns: + captions (list): A list of strings of length batch_size * num_captions. + """ + if hasattr(self, "hf_device_map"): + # preprocess for `accelerate` + self._preprocess_accelerate() + + # we process in a batched way, later unbatch it back (video has frames=4) + batch_size, frames, channel, height, width = pixel_values.shape + pixel_values = pixel_values.reshape(batch_size * frames, channel, height, width) + + image_embeds = self.vision_model( + pixel_values, + return_dict=True, + interpolate_pos_encoding=interpolate_pos_encoding, + ).last_hidden_state + image_attention_mask = torch.ones(image_embeds.size()[:-1], dtype=torch.long, device=image_embeds.device) + + query_tokens = self.query_tokens.expand(image_embeds.shape[0], -1, -1) + query_attention_mask = torch.ones(query_tokens.size()[:-1], dtype=torch.long, device=image_embeds.device) + if qformer_attention_mask is None: + qformer_attention_mask = torch.ones_like(qformer_input_ids) + + qformer_input_ids = qformer_input_ids.repeat_interleave(frames, dim=0) + qformer_attention_mask = qformer_attention_mask.repeat_interleave(frames, dim=0) + qformer_attention_mask = torch.cat([query_attention_mask, qformer_attention_mask], dim=1) + query_outputs = self.qformer( + input_ids=qformer_input_ids, + attention_mask=qformer_attention_mask, + query_embeds=query_tokens, + encoder_hidden_states=image_embeds, + encoder_attention_mask=image_attention_mask, + return_dict=True, + ) + query_output = query_outputs.last_hidden_state[:, : query_tokens.size(1), :] + + language_model_inputs = self.language_projection(query_output) + + # unbatch the embeddings back by moving frames to seq-len + language_model_inputs = language_model_inputs.reshape(batch_size, self.config.num_query_tokens * frames, -1) + language_attention_mask = torch.ones( + language_model_inputs.size()[:-1], dtype=torch.long, device=language_model_inputs.device + ) + + if input_ids is None: + start_tokens = [self.config.text_config.bos_token_id] + if getattr(self.config, "video_token_index", None) is not None: + start_tokens = [self.config.video_token_index] * self.config.num_query_tokens * 4 + start_tokens + input_ids = torch.tensor([start_tokens], dtype=torch.long, device=image_embeds.device) + input_ids = input_ids.repeat(batch_size, 1) + + if attention_mask is None: + attention_mask = torch.ones_like(input_ids) + + inputs_embeds = self.get_input_embeddings()(input_ids) + + # if the model already has "video_token_index" then the input is expanded to account for image embeds + # otherwise we expand manually by concatenating + if getattr(self.config, "video_token_index", None) is not None: + special_image_mask = (input_ids == self.config.video_token_index).unsqueeze(-1).expand_as(inputs_embeds) + inputs_embeds[special_image_mask] = language_model_inputs.flatten().to(inputs_embeds.device) + else: + logger.warning_once( + "Expanding inputs for video tokens in InstructBLIPVideo should be done in processing. " + "Please follow instruction here (https://gist.github.com/zucchini-nlp/65f22892b054dc0d68228af56fbeaac2) to update your InstructBLIPVideo model. " + "Using processors without these attributes in the config is deprecated and will throw an error in v4.47." + ) + inputs_embeds = torch.cat([language_model_inputs, inputs_embeds.to(language_model_inputs.device)], dim=1) + attention_mask = torch.cat( + [language_attention_mask, attention_mask.to(language_attention_mask.device)], dim=1 + ) + + # add image_embeds length to max_length, so that the final max_length in counted only on token embeds + # -1 is to account for the prepended BOS after `generate.` + if not self.language_model.config.is_encoder_decoder: + generate_kwargs["max_length"] = ( + generate_kwargs.get("max_length", 20) + language_model_inputs.shape[1] - 1 + ) + generate_kwargs["min_length"] = generate_kwargs.get("min_length", 0) + language_model_inputs.shape[1] + + inputs = {"inputs_embeds": inputs_embeds, "attention_mask": attention_mask} + if not self.language_model.config.is_encoder_decoder: + inputs["input_ids"] = input_ids + + outputs = self.language_model.generate(**inputs, **generate_kwargs) + + return outputs diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/modular_instructblipvideo.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/modular_instructblipvideo.py new file mode 100644 index 0000000000000000000000000000000000000000..4fd3a00708d1e1f868b668f8a1b4d510d5337a4b --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/modular_instructblipvideo.py @@ -0,0 +1,483 @@ +# coding=utf-8 +# Copyright 2024 HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from dataclasses import dataclass +from typing import Optional, Tuple, Union + +import torch +import torch.utils.checkpoint +from torch.nn import CrossEntropyLoss + +from transformers.models.instructblip.configuration_instructblip import ( + InstructBlipQFormerConfig, + InstructBlipVisionConfig, +) +from transformers.models.instructblip.modeling_instructblip import ( + InstructBlipForConditionalGeneration, + InstructBlipForConditionalGenerationModelOutput, +) + +from ...configuration_utils import PretrainedConfig +from ...models.auto.modeling_auto import MODEL_FOR_CAUSAL_LM_MAPPING_NAMES +from ...utils import logging +from ..auto import CONFIG_MAPPING, AutoConfig + + +logger = logging.get_logger(__name__) + + +class InstructBlipVideoVisionConfig(InstructBlipVisionConfig): + pass + + +class InstructBlipVideoQFormerConfig(InstructBlipQFormerConfig): + pass + + +class InstructBlipVideoConfig(PretrainedConfig): + r""" + [`InstructBlipVideoConfig`] is the configuration class to store the configuration of a + [`InstructBlipVideoForConditionalGeneration`]. It is used to instantiate a Instructblipvideo model according to the specified + arguments, defining the vision model, Q-Former model and language model configs. Instantiating a configuration with + the defaults will yield a similar configuration to that of the Instructblipvideo + [Salesforce/instruct-blip-flan-t5](https://huggingface.co/Salesforce/instruct-blip-flan-t5) architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Args: + vision_config (`dict`, *optional*): + Dictionary of configuration options used to initialize [`InstructBlipVideoVisionConfig`]. + qformer_config (`dict`, *optional*): + Dictionary of configuration options used to initialize [`InstructBlipVideoQFormerConfig`]. + text_config (`dict`, *optional*): + Dictionary of configuration options used to initialize any [`PretrainedConfig`]. + num_query_tokens (`int`, *optional*, defaults to 32): + The number of query tokens passed through the Transformer. + + video_token_index (`int`, *optional*): + Token index of special video token. + kwargs (*optional*): + Dictionary of keyword arguments. + + Example: + + ```python + >>> from transformers import ( + ... InstructBlipVideoVisionConfig, + ... InstructBlipVideoQFormerConfig, + ... OPTConfig, + ... InstructBlipVideoConfig, + ... InstructBlipVideoForConditionalGeneration, + ... ) + + >>> # Initializing a InstructBlipVideoConfig with Salesforce/instruct-blip-flan-t5 style configuration + >>> configuration = InstructBlipVideoConfig() + + >>> # Initializing a InstructBlipVideoForConditionalGeneration (with random weights) from the Salesforce/instruct-blip-flan-t5 style configuration + >>> model = InstructBlipVideoForConditionalGeneration(configuration) + + >>> # Accessing the model configuration + >>> configuration = model.config + + >>> # We can also initialize a InstructBlipVideoConfig from a InstructBlipVideoVisionConfig, InstructBlipVideoQFormerConfig and any PretrainedConfig + + >>> # Initializing Instructblipvideo vision, Instructblipvideo Q-Former and language model configurations + >>> vision_config = InstructBlipVideoVisionConfig() + >>> qformer_config = InstructBlipVideoQFormerConfig() + >>> text_config = OPTConfig() + + >>> config = InstructBlipVideoConfig.from_text_vision_configs(vision_config, qformer_config, text_config) + ```""" + + model_type = "instructblipvideo" + sub_configs = { + "text_config": AutoConfig, + "qformer_config": InstructBlipVideoQFormerConfig, + "vision_config": InstructBlipVideoVisionConfig, + } + + def __init__( + self, + vision_config=None, + qformer_config=None, + text_config=None, + num_query_tokens=32, + video_token_index=None, + **kwargs, + ): + super().__init__(**kwargs) + + if vision_config is None: + vision_config = {} + logger.info("vision_config is None. initializing the InstructBlipVideoVisionConfig with default values.") + + if qformer_config is None: + qformer_config = {} + logger.info("qformer_config is None. Initializing the InstructBlipVideoQFormerConfig with default values.") + + if text_config is None: + text_config = {} + logger.info("text_config is None. Initializing the text config with default values (`OPTConfig`).") + + self.vision_config = InstructBlipVideoVisionConfig(**vision_config) + self.qformer_config = InstructBlipVideoQFormerConfig(**qformer_config) + text_model_type = text_config["model_type"] if "model_type" in text_config else "opt" + self.text_config = CONFIG_MAPPING[text_model_type](**text_config) + + self.num_query_tokens = num_query_tokens + self.video_token_index = video_token_index + self.qformer_config.encoder_hidden_size = self.vision_config.hidden_size + self.use_decoder_only_language_model = self.text_config.model_type in MODEL_FOR_CAUSAL_LM_MAPPING_NAMES + self.initializer_factor = 1.0 + self.initializer_range = 0.02 + + @classmethod + def from_vision_qformer_text_configs( + cls, + vision_config: InstructBlipVideoVisionConfig, + qformer_config: InstructBlipVideoQFormerConfig, + text_config: PretrainedConfig, + **kwargs, + ): + r""" + Instantiate a [`InstructBlipVideoConfig`] (or a derived class) from a InstructBlipVideo vision model, Q-Former and + language model configurations. + + Returns: + [`InstructBlipVideoConfig`]: An instance of a configuration object + """ + + return cls( + vision_config=vision_config.to_dict(), + qformer_config=qformer_config.to_dict(), + text_config=text_config.to_dict(), + **kwargs, + ) + + +@dataclass +class InstructBlipVideoForConditionalGenerationModelOutput(InstructBlipForConditionalGenerationModelOutput): + pass + + +class InstructBlipVideoForConditionalGeneration(InstructBlipForConditionalGeneration): + def forward( + self, + pixel_values: torch.FloatTensor, + qformer_input_ids: torch.FloatTensor, + qformer_attention_mask: Optional[torch.LongTensor] = None, + input_ids: Optional[torch.FloatTensor] = None, + attention_mask: Optional[torch.LongTensor] = None, + decoder_input_ids: Optional[torch.LongTensor] = None, + decoder_attention_mask: Optional[torch.LongTensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + labels: Optional[torch.LongTensor] = None, + return_dict: Optional[bool] = None, + interpolate_pos_encoding: bool = False, + use_cache: Optional[bool] = None, + ) -> Union[Tuple, InstructBlipVideoForConditionalGenerationModelOutput]: + r""" + ```python + >>> from transformers import InstructBlipVideoProcessor, InstructBlipVideoForConditionalGeneration + >>> import torch + >>> from huggingface_hub import hf_hub_download + >>> import av + >>> import numpy as np + + >>> def read_video_pyav(container, indices): + ... ''' + ... Decode the video with PyAV decoder. + ... Args: + ... container (`av.container.input.InputContainer`): PyAV container. + ... indices (`List[int]`): List of frame indices to decode. + ... Returns: + ... result (np.ndarray): np array of decoded frames of shape (num_frames, height, width, 3). + ... ''' + ... frames = [] + ... container.seek(0) + ... start_index = indices[0] + ... end_index = indices[-1] + ... for i, frame in enumerate(container.decode(video=0)): + ... if i > end_index: + ... break + ... if i >= start_index and i in indices: + ... frames.append(frame) + ... return np.stack([x.to_ndarray(format="rgb24") for x in frames]) + + >>> model = InstructBlipVideoForConditionalGeneration.from_pretrained("Salesforce/instructblip-vicuna-7b", device_map="auto") + >>> processor = InstructBlipVideoProcessor.from_pretrained("Salesforce/instructblip-vicuna-7b") + + >>> file_path = hf_hub_download( + ... repo_id="nielsr/video-demo", filename="eating_spaghetti.mp4", repo_type="dataset" + ... ) + >>> container = av.open(file_path) + + >>> # sample uniformly 4 frames from the videWhy is this video funny?o + >>> total_frames = container.streams.video[0].frames + >>> indices = np.arange(0, total_frames, total_frames / 4).astype(int) + >>> clip = read_video_pyav(container, indices) + + >>> prompt = "What is happening in the video?" + >>> inputs = processor(text=prompt, images=clip, return_tensors="pt").to(model.device) + + >>> outputs = model.generate( + ... **inputs, + ... do_sample=False, + ... num_beams=5, + ... max_length=256, + ... repetition_penalty=1.5, + ... length_penalty=1.0, + ... ) + >>> generated_text = processor.batch_decode(outputs, skip_special_tokens=True)[0].strip() + >>> print(generated_text) + "A person is eating a bowl of pasta, and they are using a fork to eat it. The person is sitting at a table, and the plate of pasta is on the table in front" + ```""" + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + # step 1: forward the images through the vision encoder, + # we process in a batched way, later unbatch it back (video has frames=4 always) + batch_size, frames, channel, height, width = pixel_values.shape + pixel_values = pixel_values.reshape(batch_size * frames, channel, height, width) + + vision_outputs = self.vision_model( + pixel_values=pixel_values, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + interpolate_pos_encoding=interpolate_pos_encoding, + ) + image_embeds = vision_outputs[0] + + # step 2: forward the query tokens through the QFormer, using the image embeddings for cross-attention + image_attention_mask = torch.ones(image_embeds.size()[:-1], dtype=torch.long, device=image_embeds.device) + + # difference with BLIP-2 here: we also feed the instruction prompt to the Q-Former + query_tokens = self.query_tokens.expand(image_embeds.shape[0], -1, -1) + query_attention_mask = torch.ones(query_tokens.size()[:-1], dtype=torch.long, device=image_embeds.device) + + if qformer_attention_mask is None: + qformer_attention_mask = torch.ones_like(qformer_input_ids) + + qformer_input_ids = qformer_input_ids.repeat_interleave(frames, dim=0) + qformer_attention_mask = qformer_attention_mask.repeat_interleave(frames, dim=0) + qformer_attention_mask = torch.cat([query_attention_mask, qformer_attention_mask], dim=1) + query_outputs = self.qformer( + input_ids=qformer_input_ids, + attention_mask=qformer_attention_mask, + query_embeds=query_tokens, + encoder_hidden_states=image_embeds, + encoder_attention_mask=image_attention_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + query_output = query_outputs[0][:, : query_tokens.size(1), :] + + # step 3: use the language model, conditioned on the query outputs and the prompt + language_model_inputs = self.language_projection(query_output) + + # unbatch inputs back, each video-frame gets `num_query_tokens` seq length + language_model_inputs = language_model_inputs.reshape(batch_size, self.config.num_query_tokens * frames, -1) + language_model_attention_mask = torch.ones( + language_model_inputs.size()[:-1], dtype=torch.long, device=language_model_inputs.device + ) + + inputs_embeds = self.language_model.get_input_embeddings()(input_ids) + if attention_mask is None: + attention_mask = torch.ones_like(input_ids) + + # if the model already has "video_token_index" then the input is expanded to account for image embeds + # otherwise we expand manually by concatenating + if getattr(self.config, "video_token_index", None) is not None: + special_image_mask = (input_ids == self.config.video_token_index).unsqueeze(-1).expand_as(inputs_embeds) + inputs_embeds[special_image_mask] = language_model_inputs.flatten().to(inputs_embeds.device) + else: + logger.warning_once( + "Expanding inputs for video tokens in InstructBLIPVideo should be done in processing. " + "Please follow instruction here (https://gist.github.com/zucchini-nlp/65f22892b054dc0d68228af56fbeaac2) to update your InstructBLIPVideo model. " + "Using processors without these attributes in the config is deprecated and will throw an error in v4.47." + ) + inputs_embeds = torch.cat([language_model_inputs, inputs_embeds.to(language_model_inputs.device)], dim=1) + attention_mask = torch.cat( + [language_model_attention_mask, attention_mask.to(language_model_attention_mask.device)], dim=1 + ) + + if self.config.use_decoder_only_language_model: + outputs = self.language_model( + inputs_embeds=inputs_embeds, + attention_mask=attention_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + use_cache=use_cache, + ) + logits = outputs.logits if return_dict else outputs[0] + loss = None + # we compute the loss here since we need to take into account the sequence length of the query embeds + if labels is not None: + labels = labels.to(logits.device) + logits = logits[:, -labels.size(1) :, :] + # Shift so that tokens < n predict n + shift_logits = logits[..., :-1, :].contiguous() + shift_labels = labels[..., 1:].contiguous().to(logits.device) + + # Flatten the tokens + loss_fct = CrossEntropyLoss(reduction="mean") + + loss = loss_fct(shift_logits.view(-1, self.config.text_config.vocab_size), shift_labels.view(-1)) + else: + outputs = self.language_model( + inputs_embeds=inputs_embeds, + attention_mask=attention_mask, + decoder_input_ids=decoder_input_ids, + decoder_attention_mask=decoder_attention_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + labels=labels, + use_cache=use_cache, + ) + loss = outputs.loss if return_dict else outputs[0] + logits = outputs.logits if return_dict else outputs[1] + + if not return_dict: + output = (logits, vision_outputs, query_outputs, outputs) + return ((loss,) + output) if loss is not None else output + + return InstructBlipVideoForConditionalGenerationModelOutput( + loss=loss, + logits=logits, + vision_outputs=vision_outputs, + qformer_outputs=query_outputs, + language_model_outputs=outputs, + ) + + @torch.no_grad() + def generate( + self, + pixel_values: torch.FloatTensor, + qformer_input_ids: Optional[torch.LongTensor] = None, + qformer_attention_mask: Optional[torch.LongTensor] = None, + input_ids: Optional[torch.LongTensor] = None, + attention_mask: Optional[torch.LongTensor] = None, + interpolate_pos_encoding: bool = False, + **generate_kwargs, + ) -> torch.LongTensor: + r""" + Overrides `generate` function to be able to use the model as a conditional generator. + + Args: + pixel_values (`torch.FloatTensor` of shape (batch_size, num_channels, height, width) or + (batch_size, num_frames, num_channels, height, width)): Input images or videos to be processed. + qformer_input_ids (`torch.LongTensor` of shape (batch_size, sequence_length), *optional*): + The sequence used as a prompt to be fed to the Q-Former module. + qformer_attention_mask (`torch.LongTensor` of shape (batch_size, sequence_length), *optional*): + Mask to avoid performing attention on padding token indices. + input_ids (`torch.LongTensor` of shape (batch_size, sequence_length), *optional*): + The sequence used as a prompt for the generation. + attention_mask (`torch.LongTensor` of shape (batch_size, sequence_length), *optional*): + Mask to avoid performing attention on padding token indices. + interpolate_pos_encoding (`bool`, *optional*, defaults to `False`): + Whether to interpolate the positional encoding of the image embeddings. + + Returns: + captions (list): A list of strings of length batch_size * num_captions. + """ + if hasattr(self, "hf_device_map"): + # preprocess for `accelerate` + self._preprocess_accelerate() + + # we process in a batched way, later unbatch it back (video has frames=4) + batch_size, frames, channel, height, width = pixel_values.shape + pixel_values = pixel_values.reshape(batch_size * frames, channel, height, width) + + image_embeds = self.vision_model( + pixel_values, + return_dict=True, + interpolate_pos_encoding=interpolate_pos_encoding, + ).last_hidden_state + image_attention_mask = torch.ones(image_embeds.size()[:-1], dtype=torch.long, device=image_embeds.device) + + query_tokens = self.query_tokens.expand(image_embeds.shape[0], -1, -1) + query_attention_mask = torch.ones(query_tokens.size()[:-1], dtype=torch.long, device=image_embeds.device) + if qformer_attention_mask is None: + qformer_attention_mask = torch.ones_like(qformer_input_ids) + + qformer_input_ids = qformer_input_ids.repeat_interleave(frames, dim=0) + qformer_attention_mask = qformer_attention_mask.repeat_interleave(frames, dim=0) + qformer_attention_mask = torch.cat([query_attention_mask, qformer_attention_mask], dim=1) + query_outputs = self.qformer( + input_ids=qformer_input_ids, + attention_mask=qformer_attention_mask, + query_embeds=query_tokens, + encoder_hidden_states=image_embeds, + encoder_attention_mask=image_attention_mask, + return_dict=True, + ) + query_output = query_outputs.last_hidden_state[:, : query_tokens.size(1), :] + + language_model_inputs = self.language_projection(query_output) + + # unbatch the embeddings back by moving frames to seq-len + language_model_inputs = language_model_inputs.reshape(batch_size, self.config.num_query_tokens * frames, -1) + language_attention_mask = torch.ones( + language_model_inputs.size()[:-1], dtype=torch.long, device=language_model_inputs.device + ) + + if input_ids is None: + start_tokens = [self.config.text_config.bos_token_id] + if getattr(self.config, "video_token_index", None) is not None: + start_tokens = [self.config.video_token_index] * self.config.num_query_tokens * 4 + start_tokens + input_ids = torch.tensor([start_tokens], dtype=torch.long, device=image_embeds.device) + input_ids = input_ids.repeat(batch_size, 1) + + if attention_mask is None: + attention_mask = torch.ones_like(input_ids) + + inputs_embeds = self.get_input_embeddings()(input_ids) + + # if the model already has "video_token_index" then the input is expanded to account for image embeds + # otherwise we expand manually by concatenating + if getattr(self.config, "video_token_index", None) is not None: + special_image_mask = (input_ids == self.config.video_token_index).unsqueeze(-1).expand_as(inputs_embeds) + inputs_embeds[special_image_mask] = language_model_inputs.flatten().to(inputs_embeds.device) + else: + logger.warning_once( + "Expanding inputs for video tokens in InstructBLIPVideo should be done in processing. " + "Please follow instruction here (https://gist.github.com/zucchini-nlp/65f22892b054dc0d68228af56fbeaac2) to update your InstructBLIPVideo model. " + "Using processors without these attributes in the config is deprecated and will throw an error in v4.47." + ) + inputs_embeds = torch.cat([language_model_inputs, inputs_embeds.to(language_model_inputs.device)], dim=1) + attention_mask = torch.cat( + [language_attention_mask, attention_mask.to(language_attention_mask.device)], dim=1 + ) + + # add image_embeds length to max_length, so that the final max_length in counted only on token embeds + # -1 is to account for the prepended BOS after `generate.` + if not self.language_model.config.is_encoder_decoder: + generate_kwargs["max_length"] = ( + generate_kwargs.get("max_length", 20) + language_model_inputs.shape[1] - 1 + ) + generate_kwargs["min_length"] = generate_kwargs.get("min_length", 0) + language_model_inputs.shape[1] + + inputs = {"inputs_embeds": inputs_embeds, "attention_mask": attention_mask} + if not self.language_model.config.is_encoder_decoder: + inputs["input_ids"] = input_ids + + outputs = self.language_model.generate(**inputs, **generate_kwargs) + + return outputs diff --git a/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/processing_instructblipvideo.py b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/processing_instructblipvideo.py new file mode 100644 index 0000000000000000000000000000000000000000..1d4e59e26b46214abbf1618af5d21fd6b325b95c --- /dev/null +++ b/tasks/tasksmith-441eeab80047/tests/source/src/transformers/models/instructblipvideo/processing_instructblipvideo.py @@ -0,0 +1,236 @@ +# coding=utf-8 +# Copyright 2023 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Processor class for InstructBLIP. Largely copy of Blip2Processor with addition of a tokenizer for the Q-Former. +""" + +import os +from typing import List, Optional, Union + +from ...image_processing_utils import BatchFeature +from ...image_utils import VideoInput +from ...processing_utils import ProcessorMixin +from ...tokenization_utils_base import ( + AddedToken, + BatchEncoding, + PaddingStrategy, + PreTokenizedInput, + TextInput, + TruncationStrategy, +) +from ...utils import TensorType, logging +from ..auto import AutoTokenizer + + +logger = logging.get_logger(__name__) + + +class InstructBlipVideoProcessor(ProcessorMixin): + r""" + Constructs an InstructBLIPVideo processor which wraps a InstructBLIP image processor and a LLaMa/T5 tokenizer into a single + processor. + + [`InstructBlipVideoProcessor`] offers all the functionalities of [`InstructBlipVideoImageProcessor`] and [`AutoTokenizer`]. See the + docstring of [`~InstructBlipVideoProcessor.__call__`] and [`~InstructBlipVideoProcessor.decode`] for more information. + + Args: + image_processor (`InstructBlipVideoImageProcessor`): + An instance of [`InstructBlipVideoImageProcessor`]. The image processor is a required input. + tokenizer (`AutoTokenizer`): + An instance of ['PreTrainedTokenizer`]. The tokenizer is a required input. + qformer_tokenizer (`AutoTokenizer`): + An instance of ['PreTrainedTokenizer`]. The Q-Former tokenizer is a required input. + num_query_tokens (`int`, *optional*): + Number of tokens used by the Qformer as queries, should be same as in model's config. + """ + + attributes = ["image_processor", "tokenizer", "qformer_tokenizer"] + valid_kwargs = ["num_query_tokens"] + image_processor_class = "InstructBlipVideoImageProcessor" + tokenizer_class = "AutoTokenizer" + qformer_tokenizer_class = "AutoTokenizer" + + def __init__(self, image_processor, tokenizer, qformer_tokenizer, num_query_tokens=None, **kwargs): + if not hasattr(tokenizer, "video_token"): + self.video_token = AddedToken("