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acd1d1b | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 | import sys
import logging
import datasets
from datasets import load_dataset
import torch
import transformers
from trl import SFTTrainer, SFTConfig
from transformers import AutoModelForCausalLM, AutoTokenizer, TrainingArguments
"""
A simple example on using SFTTrainer to finetune SlimMoE models. For
a more advanced example, please follow HF alignment-handbook/scripts/run_sft.py.
The script can be run on a single 80GB A100 or later generation GPU. Here are some suggestions on
further reducing memory consumption:
- use deepspeed zero3
- use gradient checkpointing
Please follow these steps to run the script:
1. Install dependencies:
conda install -c conda-forge accelerate
pip3 install -i https://pypi.org/simple/ bitsandbytes
pip3 install peft trl transformers datasets
pip3 install einops flash_attn torchao
2. Run the code:
python sample_finetune.py
"""
logger = logging.getLogger(__name__)
###################
# Hyper-parameters
###################
training_config = {
"bf16": True,
"do_eval": False,
"optim": "adamw_torch_8bit",
"learning_rate": 5.0e-06,
"log_level": "info",
"logging_steps": 20,
"logging_strategy": "steps",
"lr_scheduler_type": "cosine",
"num_train_epochs": 1,
"max_steps": -1,
"output_dir": "./checkpoint_dir",
"overwrite_output_dir": True,
"per_device_eval_batch_size": 1,
"per_device_train_batch_size": 1,
"remove_unused_columns": True,
"save_steps": 100,
"save_total_limit": 1,
"seed": 0,
"gradient_checkpointing": False,
# "gradient_checkpointing_kwargs":{"use_reentrant": False},
"gradient_accumulation_steps": 1,
"warmup_ratio": 0.2,
"max_length": 4096,
"dataset_text_field": "text",
"packing": True,
}
train_conf = SFTConfig(**training_config)
###############
# Setup logging
###############
logging.basicConfig(
format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
datefmt="%Y-%m-%d %H:%M:%S",
handlers=[logging.StreamHandler(sys.stdout)],
)
log_level = train_conf.get_process_log_level()
logger.setLevel(log_level)
datasets.utils.logging.set_verbosity(log_level)
transformers.utils.logging.set_verbosity(log_level)
transformers.utils.logging.enable_default_handler()
transformers.utils.logging.enable_explicit_format()
# Log on each process a small summary
logger.warning(
f"Process rank: {train_conf.local_rank}, device: {train_conf.device}, n_gpu: {train_conf.n_gpu}"
+ f" distributed training: {bool(train_conf.local_rank != -1)}, 16-bits training: {train_conf.fp16}"
)
logger.info(f"Training/evaluation parameters {train_conf}")
################
# Model Loading
################
checkpoint_path = "microsoft/Phi-tiny-MoE-instruct"
model_kwargs = dict(
use_cache=False,
trust_remote_code=True,
attn_implementation="flash_attention_2", # loading the model with flash-attenstion support
torch_dtype=torch.bfloat16,
device_map=None
)
model = AutoModelForCausalLM.from_pretrained(checkpoint_path, **model_kwargs)
tokenizer = AutoTokenizer.from_pretrained(checkpoint_path)
tokenizer.model_max_length = 2048
tokenizer.pad_token = tokenizer.unk_token # use unk rather than eos token to prevent endless generation
tokenizer.pad_token_id = tokenizer.convert_tokens_to_ids(tokenizer.pad_token)
tokenizer.padding_side = 'right'
##################
# Data Processing
##################
def apply_chat_template(
example,
tokenizer,
):
messages = example["messages"]
example["text"] = tokenizer.apply_chat_template(
messages, tokenize=False, add_generation_prompt=False)
return example
raw_dataset = load_dataset("HuggingFaceH4/ultrachat_200k")
train_dataset = raw_dataset["train_sft"]
test_dataset = raw_dataset["test_sft"]
column_names = list(train_dataset.features)
processed_train_dataset = train_dataset.map(
apply_chat_template,
fn_kwargs={"tokenizer": tokenizer},
num_proc=10,
remove_columns=column_names,
desc="Applying chat template to train_sft",
)
processed_test_dataset = test_dataset.map(
apply_chat_template,
fn_kwargs={"tokenizer": tokenizer},
num_proc=10,
remove_columns=column_names,
desc="Applying chat template to test_sft",
)
###########
# Training
###########
trainer = SFTTrainer(
model=model,
args=train_conf,
train_dataset=processed_train_dataset,
eval_dataset=processed_test_dataset,
processing_class=tokenizer,
)
train_result = trainer.train()
metrics = train_result.metrics
trainer.log_metrics("train", metrics)
trainer.save_metrics("train", metrics)
trainer.save_state()
#############
# Evaluation
#############
tokenizer.padding_side = 'left'
metrics = trainer.evaluate()
metrics["eval_samples"] = len(processed_test_dataset)
trainer.log_metrics("eval", metrics)
trainer.save_metrics("eval", metrics)
# ############
# # Save model
# ############
trainer.save_model(train_conf.output_dir) |