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397 lines (325 loc) · 12.6 KB
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# This code is based on the revised code from fastchat based on tatsu-lab/stanford_alpaca.
from dataclasses import dataclass, field
import json
import math
import logging
import os
from typing import Dict, Optional, List
import torch
from torch.utils.data import Dataset
from deepspeed import zero
from deepspeed.runtime.zero.partition_parameters import ZeroParamStatus
import transformers
from transformers import Trainer, GPTQConfig, deepspeed
from transformers.trainer_pt_utils import LabelSmoother
from peft import LoraConfig, get_peft_model, prepare_model_for_kbit_training
from accelerate.utils import DistributedType
from monkey_model.modeling_monkey import MonkeyLMHeadModel
from monkey_model.tokenization_qwen import QWenTokenizer
from monkey_model.configuration_monkey import MonkeyConfig
IGNORE_TOKEN_ID = LabelSmoother.ignore_index
@dataclass
class ModelArguments:
model_name_or_path: Optional[str] = field(default="")
@dataclass
class DataArguments:
data_path: str = field(
default=None, metadata={"help": "Path to the training data."}
)
eval_data_path: str = field(
default=None, metadata={"help": "Path to the evaluation data."}
)
lazy_preprocess: bool = False
@dataclass
class TrainingArguments(transformers.TrainingArguments):
cache_dir: Optional[str] = field(default=None)
optim: str = field(default="adamw_torch")
model_max_length: int = field(
default=8192,
metadata={
"help": "Maximum sequence length. Sequences will be right padded (and possibly truncated)."
},
)
use_lora: bool = False
fix_vit: bool = True
@dataclass
class LoraArguments:
lora_r: int = 16
lora_alpha: int = 32
lora_dropout: float = 0.05
lora_target_modules: List[str] = field(
default_factory=lambda: ["in_proj","out_proj","c_fc"] ##["in_proj","out_proj","c_fc"]
)
lora_weight_path: str = ""
lora_bias: str = "none"
q_lora: bool = False
def maybe_zero_3(param):
if hasattr(param, "ds_id"):
assert param.ds_status == ZeroParamStatus.NOT_AVAILABLE
with zero.GatheredParameters([param]):
param = param.data.detach().cpu().clone()
else:
param = param.detach().cpu().clone()
return param
# Borrowed from peft.utils.get_peft_model_state_dict
def get_peft_state_maybe_zero_3(named_params, bias):
if bias == "none":
to_return = {k: t for k, t in named_params if "lora_" in k}
elif bias == "all":
to_return = {k: t for k, t in named_params if "lora_" in k or "bias" in k}
elif bias == "lora_only":
to_return = {}
maybe_lora_bias = {}
lora_bias_names = set()
for k, t in named_params:
if "lora_" in k:
to_return[k] = t
bias_name = k.split("lora_")[0] + "bias"
lora_bias_names.add(bias_name)
elif "bias" in k:
maybe_lora_bias[k] = t
for k, t in maybe_lora_bias:
if bias_name in lora_bias_names:
to_return[bias_name] = t
else:
raise NotImplementedError
to_return = {k: maybe_zero_3(v) for k, v in to_return.items()}
return to_return
local_rank = None
def rank0_print(*args):
if local_rank == 0:
print(*args)
def safe_save_model_for_hf_trainer(trainer: transformers.Trainer, output_dir: str, bias="none"):
"""Collects the state dict and dump to disk."""
# check if zero3 mode enabled
if deepspeed.is_deepspeed_zero3_enabled():
state_dict = trainer.model_wrapped._zero3_consolidated_16bit_state_dict()
else:
state_dict = trainer.model.state_dict()
if trainer.args.should_save and trainer.args.local_rank == 0:
trainer._save(output_dir, state_dict=state_dict)
def format_tokenizer(tokenizer, message, return_target=False, label=False):
_input_ids = tokenizer(message).input_ids
input_ids = _input_ids
if return_target:
if label:
target = input_ids
else:
target = [IGNORE_TOKEN_ID] * (len(_input_ids))
return input_ids, target
else:
return input_ids
def preprocess(
source,
tokenizer,
max_len,
system_message: str = "You are a helpful assistant.",
padding=True
):
# Apply prompt templates
input_ids, targets = [], []
user, assistant = source[0], source[1]
user_input = user['value']
assistant_input = assistant['value']
message_l = [user_input, assistant_input]
for i, message in enumerate(message_l):
try:
_input_ids, _target = format_tokenizer(tokenizer, message, return_target=True, label=True if i == len(message_l) - 1 else False) # <img> 有些text会有img标签，所以使用<img>作为特殊id有问题，标签数量不对等会报错
except Exception as e:
print(e)
continue
input_ids += _input_ids
targets += _target
assert len(_input_ids) == len(_input_ids)
if padding:
input_ids += [-1]+[tokenizer.pad_token_id] * (max_len - len(input_ids)-1)
targets += [tokenizer.pad_token_id] +[IGNORE_TOKEN_ID] * (max_len - len(targets)-1)
targets = targets[:max_len]
input_ids = input_ids[:max_len]
input_ids = torch.tensor(input_ids, dtype=torch.int)
targets = torch.tensor(targets, dtype=torch.int)
attention_mask=input_ids.ne(tokenizer.pad_token_id)
input_ids[input_ids == -1 ] = tokenizer.pad_token_id
return dict(
input_ids=input_ids,
labels=targets,
attention_mask=attention_mask,
)
class SupervisedDataset(Dataset):
"""Dataset for supervised fine-tuning."""
def __init__(self, raw_data, tokenizer: transformers.PreTrainedTokenizer, max_len: int):
super(SupervisedDataset, self).__init__()
rank0_print("Formatting inputs...")
sources = [example["conversations"] for example in raw_data]
data_dict = preprocess(sources, tokenizer, max_len)
self.input_ids = data_dict["input_ids"]
self.labels = data_dict["labels"]
self.attention_mask = data_dict["attention_mask"]
def __len__(self):
return len(self.input_ids)
def __getitem__(self, i) -> Dict[str, torch.Tensor]:
return dict(
input_ids=self.input_ids[i],
labels=self.labels[i],
attention_mask=self.attention_mask[i],
)
class LazySupervisedDataset(Dataset):
"""Dataset for supervised fine-tuning."""
def __init__(self, raw_data, tokenizer: transformers.PreTrainedTokenizer, max_len: int):
super(LazySupervisedDataset, self).__init__()
self.tokenizer = tokenizer
self.max_len = max_len
rank0_print("Formatting inputs...Skip in lazy mode")
self.tokenizer = tokenizer
self.raw_data = raw_data
self.cached_data_dict = {}
def __len__(self):
return len(self.raw_data)
def __getitem__(self, i) -> Dict[str, torch.Tensor]:
if i in self.cached_data_dict:
return self.cached_data_dict[i]
ret = preprocess(self.raw_data[i]["conversations"], self.tokenizer, self.max_len)
ret = dict(
input_ids=ret["input_ids"],
labels=ret["labels"],
attention_mask=ret["attention_mask"],
)
self.cached_data_dict[i] = ret
return ret
def make_supervised_data_module(
tokenizer: transformers.PreTrainedTokenizer, data_args, max_len,
) -> Dict:
"""Make dataset and collator for supervised fine-tuning."""
dataset_cls = (
LazySupervisedDataset if data_args.lazy_preprocess else SupervisedDataset
)
rank0_print("Loading data...")
train_json = json.load(open(data_args.data_path, "r"))
train_dataset = dataset_cls(train_json, tokenizer=tokenizer, max_len=max_len)
if data_args.eval_data_path:
eval_json = json.load(open(data_args.eval_data_path, "r"))
eval_dataset = dataset_cls(eval_json, tokenizer=tokenizer, max_len=max_len)
else:
eval_dataset = None
return dict(train_dataset=train_dataset, eval_dataset=eval_dataset)
def print_trainable_params(model: torch.nn.Module):
trainable_params, all_param = 0, 0
for param in model.parameters():
num_params = param.numel()
all_param += num_params
if param.requires_grad:
trainable_params += num_params
rank0_print("trainable params: {:d} || all params: {:d} || trainable%: {:.4f}".format(
trainable_params, all_param, 100 * trainable_params / all_param))
# for name,p in model.named_parameters():
# if p.requires_grad and "transformer.h" not in name:
# print(name)
def train():
global local_rank
parser = transformers.HfArgumentParser(
(ModelArguments, DataArguments, TrainingArguments, LoraArguments)
)
(
model_args,
data_args,
training_args,
lora_args,
) = parser.parse_args_into_dataclasses()
if getattr(training_args, 'deepspeed', None) and getattr(lora_args, 'q_lora', False):
training_args.distributed_state.distributed_type = DistributedType.DEEPSPEED
compute_dtype = (
torch.float16
if training_args.fp16
else (torch.bfloat16 if training_args.bf16 else torch.float32)
)
local_rank = training_args.local_rank
device_map = None
world_size = int(os.environ.get("WORLD_SIZE", 1))
ddp = world_size != 1
if lora_args.q_lora:
device_map = {"": int(os.environ.get("LOCAL_RANK") or 0)} if ddp else None
if len(training_args.fsdp) > 0 or deepspeed.is_deepspeed_zero3_enabled():
logging.warning(
"FSDP or ZeRO3 are not incompatible with QLoRA."
)
# Set RoPE scaling factor
config = MonkeyConfig.from_pretrained(
"monkey_model",
cache_dir=training_args.cache_dir,
trust_remote_code=True,
)
rank0_print(config)
config.use_cache = False
# Load model and tokenizer
rank0_print("loading base model")
model = MonkeyLMHeadModel.from_pretrained(
model_args.model_name_or_path,
config=config,
cache_dir=training_args.cache_dir,
device_map=device_map,
trust_remote_code=True,
quantization_config=GPTQConfig(
bits=4, disable_exllama=True
)
if training_args.use_lora and lora_args.q_lora
else None,
)
tokenizer = QWenTokenizer.from_pretrained(
"monkey_model",
cache_dir=training_args.cache_dir,
model_max_length=training_args.model_max_length,
padding_side="right",
use_fast=False,
trust_remote_code=True,
)
tokenizer.pad_token_id = tokenizer.eod_id
if not training_args.use_lora:
if training_args.fix_vit and hasattr(model,'transformer') and hasattr(model.transformer,'visual'):
model.transformer.visual.requires_grad_(False)
if hasattr(model.transformer.visual,'attn_pool'):
model.transformer.visual.attn_pool.requires_grad_(True)
for k,v in model.named_parameters():
if "lora" in k :
v.requires_grad_(True)
if training_args.use_lora:
if lora_args.q_lora or "chat" in model_args.model_name_or_path.lower():
modules_to_save = None
else:
modules_to_save = []
lora_config = LoraConfig(
r=lora_args.lora_r,
lora_alpha=lora_args.lora_alpha,
target_modules=lora_args.lora_target_modules,
lora_dropout=lora_args.lora_dropout,
bias=lora_args.lora_bias,
task_type="CAUSAL_LM",
modules_to_save=modules_to_save # This argument serves for adding new tokens.
)
model = get_peft_model(model, lora_config)
if training_args.gradient_checkpointing:
model.enable_input_require_grads()
print_trainable_params(model)
# Load data
data_module = make_supervised_data_module(
tokenizer=tokenizer, data_args=data_args, max_len=training_args.model_max_length
)
# Start trainner
trainer = Trainer(
model=model, tokenizer=tokenizer, args=training_args, **data_module
)
trainer.train()
trainer.save_state()
safe_save_model_for_hf_trainer(trainer=trainer, output_dir=training_args.output_dir, bias=lora_args.lora_bias)
import numpy as np
import random
def setup_seed(seed):
torch.manual_seed(seed)
torch.cuda.manual_seed_all(seed)
np.random.seed(seed)
random.seed(seed)
# torch.backends.cudnn.deterministic = True
# torch.backends.cudnn.benchmark = False
os.environ["PYTHONHASHSEED"] = str(seed)
if __name__ == "__main__":
setup_seed(46)
train()
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