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Issue with LLaVA-Next SFT
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""" | |
python vsft.py \ | |
--dataset_name="HuggingFaceH4/llava-instruct-mix-vsft" \ | |
--model_name_or_path="llava-hf/llava-v1.6-mistral-7b-hf" \ | |
--report_to="tensorboard" \ | |
--learning_rate=2e-5 \ | |
--lr_scheduler_type="cosine" \ | |
--per_device_train_batch_size=8 \ | |
--gradient_accumulation_steps=1 \ | |
--output_dir="data/vsft-llava-1.5-7b-hf" \ | |
--logging_steps=1 \ | |
--num_train_epochs=1 \ | |
--gradient_checkpointing \ | |
--remove_unused_columns=False \ | |
--torch_dtype=float16 \ | |
--fp16=True \ | |
--max_seq_length=4096 \ | |
--attn_implementation="flash_attention_2" | |
""" | |
from contextlib import nullcontext | |
from trl.commands.cli_utils import SFTScriptArguments, TrlParser | |
import torch | |
from datasets import load_dataset | |
from tqdm.rich import tqdm | |
from transformers import AutoTokenizer, AutoProcessor, LlavaNextForConditionalGeneration | |
from trl import ( | |
ModelConfig, | |
SFTConfig, | |
SFTTrainer, | |
get_peft_config, | |
get_quantization_config, | |
get_kbit_device_map, | |
) | |
tqdm.pandas() | |
if __name__ == "__main__": | |
parser = TrlParser((SFTScriptArguments, SFTConfig, ModelConfig)) | |
sft_script_args, training_args, model_config = parser.parse_args_and_config() | |
training_args.gradient_checkpointing_kwargs = dict(use_reentrant=False) | |
LLAVA_CHAT_TEMPLATE = """{% if not add_generation_prompt is defined %}{% set add_generation_prompt = false %}{% endif %}A chat between a curious user and an artificial intelligence assistant. The assistant gives helpful, detailed, and polite answers to the user's questions. {% for message in messages %}{% if message['role'] == 'user' %}USER: {% else %}ASSISTANT: {% endif %}{% for item in message['content'] %}{% if item['type'] == 'text' %}{{ item['text'] }}{% elif item['type'] == 'image' %}<image>{% endif %}{% endfor %}{% if message['role'] == 'user' %} {% else %}{{eos_token}}{% endif %}{% endfor %}{% if add_generation_prompt %}ASSISTANT: {% endif %}""" | |
torch_dtype = ( | |
model_config.torch_dtype | |
if model_config.torch_dtype in ["auto", None] | |
else getattr(torch, model_config.torch_dtype) | |
) | |
quantization_config = get_quantization_config(model_config) | |
model_kwargs = dict( | |
revision=model_config.model_revision, | |
trust_remote_code=model_config.trust_remote_code, | |
attn_implementation=model_config.attn_implementation, | |
torch_dtype=torch_dtype, | |
device_map=get_kbit_device_map() if quantization_config is not None else None, | |
quantization_config=quantization_config, | |
) | |
tokenizer = AutoTokenizer.from_pretrained( | |
model_config.model_name_or_path, use_fast=True, padding_side="right" | |
) | |
tokenizer.chat_template = LLAVA_CHAT_TEMPLATE | |
processor = AutoProcessor.from_pretrained(model_config.model_name_or_path) | |
processor.tokenizer = tokenizer | |
model = LlavaNextForConditionalGeneration.from_pretrained( | |
model_config.model_name_or_path, **model_kwargs | |
) | |
class LLavaDataCollator: | |
def __init__(self, processor): | |
self.processor = processor | |
def __call__(self, examples): | |
texts = [] | |
images = [] | |
for example in examples: | |
if len(example["images"]) > 1: | |
raise ValueError( | |
"This collator only supports one image per example" | |
) | |
messages = example["messages"] | |
text = self.processor.tokenizer.apply_chat_template( | |
messages, tokenize=False, add_generation_prompt=False | |
) | |
texts.append(text) | |
images.append(example["images"][0]) | |
batch = self.processor(texts, images, return_tensors="pt", padding=True) | |
labels = batch["input_ids"].clone() | |
batch["labels"] = labels | |
return batch | |
data_collator = LLavaDataCollator(processor) | |
raw_datasets = load_dataset(sft_script_args.dataset_name) | |
train_dataset = raw_datasets[sft_script_args.dataset_train_split] | |
eval_dataset = raw_datasets[sft_script_args.dataset_test_split] | |
init_context = nullcontext() | |
save_context = nullcontext() | |
with init_context: | |
trainer = SFTTrainer( | |
model=model, | |
args=training_args, | |
train_dataset=train_dataset, | |
eval_dataset=eval_dataset, | |
dataset_text_field="text", # need a dummy field | |
tokenizer=tokenizer, | |
peft_config=get_peft_config(model_config), | |
callbacks=None, | |
data_collator=data_collator, | |
dataset_kwargs={"skip_prepare_dataset": True}, | |
) | |
trainer.train() | |
with save_context: | |
trainer.save_model(training_args.output_dir) |
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