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| # coding=utf-8 | |
| # Copyright 2022 HuggingFace Inc. | |
| # | |
| # 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 gc | |
| import random | |
| import unittest | |
| import numpy as np | |
| import torch | |
| from diffusers import AltDiffusionPipeline, AutoencoderKL, DDIMScheduler, PNDMScheduler, UNet2DConditionModel | |
| from diffusers.pipelines.alt_diffusion.modeling_roberta_series import ( | |
| RobertaSeriesConfig, | |
| RobertaSeriesModelWithTransformation, | |
| ) | |
| from diffusers.utils import floats_tensor, slow, torch_device | |
| from diffusers.utils.testing_utils import require_torch_gpu | |
| from transformers import XLMRobertaTokenizer | |
| from ...test_pipelines_common import PipelineTesterMixin | |
| torch.backends.cuda.matmul.allow_tf32 = False | |
| class AltDiffusionPipelineFastTests(PipelineTesterMixin, unittest.TestCase): | |
| def tearDown(self): | |
| # clean up the VRAM after each test | |
| super().tearDown() | |
| gc.collect() | |
| torch.cuda.empty_cache() | |
| def dummy_image(self): | |
| batch_size = 1 | |
| num_channels = 3 | |
| sizes = (32, 32) | |
| image = floats_tensor((batch_size, num_channels) + sizes, rng=random.Random(0)).to(torch_device) | |
| return image | |
| def dummy_cond_unet(self): | |
| torch.manual_seed(0) | |
| model = UNet2DConditionModel( | |
| block_out_channels=(32, 64), | |
| layers_per_block=2, | |
| sample_size=32, | |
| in_channels=4, | |
| out_channels=4, | |
| down_block_types=("DownBlock2D", "CrossAttnDownBlock2D"), | |
| up_block_types=("CrossAttnUpBlock2D", "UpBlock2D"), | |
| cross_attention_dim=32, | |
| ) | |
| return model | |
| def dummy_cond_unet_inpaint(self): | |
| torch.manual_seed(0) | |
| model = UNet2DConditionModel( | |
| block_out_channels=(32, 64), | |
| layers_per_block=2, | |
| sample_size=32, | |
| in_channels=9, | |
| out_channels=4, | |
| down_block_types=("DownBlock2D", "CrossAttnDownBlock2D"), | |
| up_block_types=("CrossAttnUpBlock2D", "UpBlock2D"), | |
| cross_attention_dim=32, | |
| ) | |
| return model | |
| def dummy_vae(self): | |
| torch.manual_seed(0) | |
| model = AutoencoderKL( | |
| block_out_channels=[32, 64], | |
| in_channels=3, | |
| out_channels=3, | |
| down_block_types=["DownEncoderBlock2D", "DownEncoderBlock2D"], | |
| up_block_types=["UpDecoderBlock2D", "UpDecoderBlock2D"], | |
| latent_channels=4, | |
| ) | |
| return model | |
| def dummy_text_encoder(self): | |
| torch.manual_seed(0) | |
| config = RobertaSeriesConfig( | |
| hidden_size=32, | |
| project_dim=32, | |
| intermediate_size=37, | |
| layer_norm_eps=1e-05, | |
| num_attention_heads=4, | |
| num_hidden_layers=5, | |
| vocab_size=5002, | |
| ) | |
| return RobertaSeriesModelWithTransformation(config) | |
| def dummy_extractor(self): | |
| def extract(*args, **kwargs): | |
| class Out: | |
| def __init__(self): | |
| self.pixel_values = torch.ones([0]) | |
| def to(self, device): | |
| self.pixel_values.to(device) | |
| return self | |
| return Out() | |
| return extract | |
| def test_alt_diffusion_ddim(self): | |
| device = "cpu" # ensure determinism for the device-dependent torch.Generator | |
| unet = self.dummy_cond_unet | |
| scheduler = DDIMScheduler( | |
| beta_start=0.00085, | |
| beta_end=0.012, | |
| beta_schedule="scaled_linear", | |
| clip_sample=False, | |
| set_alpha_to_one=False, | |
| ) | |
| vae = self.dummy_vae | |
| bert = self.dummy_text_encoder | |
| tokenizer = XLMRobertaTokenizer.from_pretrained("hf-internal-testing/tiny-xlm-roberta") | |
| tokenizer.model_max_length = 77 | |
| # make sure here that pndm scheduler skips prk | |
| alt_pipe = AltDiffusionPipeline( | |
| unet=unet, | |
| scheduler=scheduler, | |
| vae=vae, | |
| text_encoder=bert, | |
| tokenizer=tokenizer, | |
| safety_checker=None, | |
| feature_extractor=self.dummy_extractor, | |
| ) | |
| alt_pipe = alt_pipe.to(device) | |
| alt_pipe.set_progress_bar_config(disable=None) | |
| prompt = "A photo of an astronaut" | |
| generator = torch.Generator(device=device).manual_seed(0) | |
| output = alt_pipe([prompt], generator=generator, guidance_scale=6.0, num_inference_steps=2, output_type="np") | |
| image = output.images | |
| generator = torch.Generator(device=device).manual_seed(0) | |
| image_from_tuple = alt_pipe( | |
| [prompt], | |
| generator=generator, | |
| guidance_scale=6.0, | |
| num_inference_steps=2, | |
| output_type="np", | |
| return_dict=False, | |
| )[0] | |
| image_slice = image[0, -3:, -3:, -1] | |
| image_from_tuple_slice = image_from_tuple[0, -3:, -3:, -1] | |
| assert image.shape == (1, 128, 128, 3) | |
| expected_slice = np.array( | |
| [0.49249017, 0.46064827, 0.4790093, 0.50883967, 0.4811985, 0.51540506, 0.5084924, 0.4860553, 0.47318557] | |
| ) | |
| assert np.abs(image_slice.flatten() - expected_slice).max() < 1e-2 | |
| assert np.abs(image_from_tuple_slice.flatten() - expected_slice).max() < 1e-2 | |
| def test_alt_diffusion_pndm(self): | |
| device = "cpu" # ensure determinism for the device-dependent torch.Generator | |
| unet = self.dummy_cond_unet | |
| scheduler = PNDMScheduler(skip_prk_steps=True) | |
| vae = self.dummy_vae | |
| bert = self.dummy_text_encoder | |
| tokenizer = XLMRobertaTokenizer.from_pretrained("hf-internal-testing/tiny-xlm-roberta") | |
| tokenizer.model_max_length = 77 | |
| # make sure here that pndm scheduler skips prk | |
| alt_pipe = AltDiffusionPipeline( | |
| unet=unet, | |
| scheduler=scheduler, | |
| vae=vae, | |
| text_encoder=bert, | |
| tokenizer=tokenizer, | |
| safety_checker=None, | |
| feature_extractor=self.dummy_extractor, | |
| ) | |
| alt_pipe = alt_pipe.to(device) | |
| alt_pipe.set_progress_bar_config(disable=None) | |
| prompt = "A painting of a squirrel eating a burger" | |
| generator = torch.Generator(device=device).manual_seed(0) | |
| output = alt_pipe([prompt], generator=generator, guidance_scale=6.0, num_inference_steps=2, output_type="np") | |
| image = output.images | |
| generator = torch.Generator(device=device).manual_seed(0) | |
| image_from_tuple = alt_pipe( | |
| [prompt], | |
| generator=generator, | |
| guidance_scale=6.0, | |
| num_inference_steps=2, | |
| output_type="np", | |
| return_dict=False, | |
| )[0] | |
| image_slice = image[0, -3:, -3:, -1] | |
| image_from_tuple_slice = image_from_tuple[0, -3:, -3:, -1] | |
| assert image.shape == (1, 128, 128, 3) | |
| expected_slice = np.array( | |
| [0.4786532, 0.45791715, 0.47507674, 0.50763345, 0.48375353, 0.515062, 0.51244247, 0.48673993, 0.47105807] | |
| ) | |
| assert np.abs(image_slice.flatten() - expected_slice).max() < 1e-2 | |
| assert np.abs(image_from_tuple_slice.flatten() - expected_slice).max() < 1e-2 | |
| def test_alt_diffusion_fp16(self): | |
| """Test that stable diffusion works with fp16""" | |
| unet = self.dummy_cond_unet | |
| scheduler = PNDMScheduler(skip_prk_steps=True) | |
| vae = self.dummy_vae | |
| bert = self.dummy_text_encoder | |
| tokenizer = XLMRobertaTokenizer.from_pretrained("hf-internal-testing/tiny-xlm-roberta") | |
| tokenizer.model_max_length = 77 | |
| # put models in fp16 | |
| unet = unet.half() | |
| vae = vae.half() | |
| bert = bert.half() | |
| # make sure here that pndm scheduler skips prk | |
| alt_pipe = AltDiffusionPipeline( | |
| unet=unet, | |
| scheduler=scheduler, | |
| vae=vae, | |
| text_encoder=bert, | |
| tokenizer=tokenizer, | |
| safety_checker=None, | |
| feature_extractor=self.dummy_extractor, | |
| ) | |
| alt_pipe = alt_pipe.to(torch_device) | |
| alt_pipe.set_progress_bar_config(disable=None) | |
| prompt = "A painting of a squirrel eating a burger" | |
| generator = torch.Generator(device=torch_device).manual_seed(0) | |
| image = alt_pipe([prompt], generator=generator, num_inference_steps=2, output_type="np").images | |
| assert image.shape == (1, 128, 128, 3) | |
| class AltDiffusionPipelineIntegrationTests(unittest.TestCase): | |
| def tearDown(self): | |
| # clean up the VRAM after each test | |
| super().tearDown() | |
| gc.collect() | |
| torch.cuda.empty_cache() | |
| def test_alt_diffusion(self): | |
| # make sure here that pndm scheduler skips prk | |
| alt_pipe = AltDiffusionPipeline.from_pretrained("BAAI/AltDiffusion", safety_checker=None) | |
| alt_pipe = alt_pipe.to(torch_device) | |
| alt_pipe.set_progress_bar_config(disable=None) | |
| prompt = "A painting of a squirrel eating a burger" | |
| generator = torch.Generator(device=torch_device).manual_seed(0) | |
| with torch.autocast("cuda"): | |
| output = alt_pipe( | |
| [prompt], generator=generator, guidance_scale=6.0, num_inference_steps=20, output_type="np" | |
| ) | |
| image = output.images | |
| image_slice = image[0, -3:, -3:, -1] | |
| assert image.shape == (1, 512, 512, 3) | |
| expected_slice = np.array( | |
| [0.8720703, 0.87109375, 0.87402344, 0.87109375, 0.8779297, 0.8925781, 0.8823242, 0.8808594, 0.8613281] | |
| ) | |
| assert np.abs(image_slice.flatten() - expected_slice).max() < 1e-2 | |
| def test_alt_diffusion_fast_ddim(self): | |
| scheduler = DDIMScheduler.from_pretrained("BAAI/AltDiffusion", subfolder="scheduler") | |
| alt_pipe = AltDiffusionPipeline.from_pretrained("BAAI/AltDiffusion", scheduler=scheduler, safety_checker=None) | |
| alt_pipe = alt_pipe.to(torch_device) | |
| alt_pipe.set_progress_bar_config(disable=None) | |
| prompt = "A painting of a squirrel eating a burger" | |
| generator = torch.Generator(device=torch_device).manual_seed(0) | |
| with torch.autocast("cuda"): | |
| output = alt_pipe([prompt], generator=generator, num_inference_steps=2, output_type="numpy") | |
| image = output.images | |
| image_slice = image[0, -3:, -3:, -1] | |
| assert image.shape == (1, 512, 512, 3) | |
| expected_slice = np.array( | |
| [0.9267578, 0.9301758, 0.9013672, 0.9345703, 0.92578125, 0.94433594, 0.9423828, 0.9423828, 0.9160156] | |
| ) | |
| assert np.abs(image_slice.flatten() - expected_slice).max() < 1e-2 | |
| def test_alt_diffusion_text2img_pipeline_fp16(self): | |
| torch.cuda.reset_peak_memory_stats() | |
| model_id = "BAAI/AltDiffusion" | |
| pipe = AltDiffusionPipeline.from_pretrained( | |
| model_id, revision="fp16", torch_dtype=torch.float16, safety_checker=None | |
| ) | |
| pipe = pipe.to(torch_device) | |
| pipe.set_progress_bar_config(disable=None) | |
| prompt = "a photograph of an astronaut riding a horse" | |
| generator = torch.Generator(device=torch_device).manual_seed(0) | |
| output_chunked = pipe( | |
| [prompt], generator=generator, guidance_scale=7.5, num_inference_steps=10, output_type="numpy" | |
| ) | |
| image_chunked = output_chunked.images | |
| generator = torch.Generator(device=torch_device).manual_seed(0) | |
| with torch.autocast(torch_device): | |
| output = pipe( | |
| [prompt], generator=generator, guidance_scale=7.5, num_inference_steps=10, output_type="numpy" | |
| ) | |
| image = output.images | |
| # Make sure results are close enough | |
| diff = np.abs(image_chunked.flatten() - image.flatten()) | |
| # They ARE different since ops are not run always at the same precision | |
| # however, they should be extremely close. | |
| assert diff.mean() < 2e-2 | |