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This commit is contained in:
95
arguments.py
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95
arguments.py
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from dataclasses import dataclass, field
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from typing import Optional
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@dataclass
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class DataArguments:
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eval_dataset_size: int = field(
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default=512, metadata={"help": "Size of validation dataset."}
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)
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source_max_len: int = field(
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default=512,
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metadata={"help": "Maximum source sequence length. Sequences will be right padded (and possibly truncated)."},
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)
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train_on_source: Optional[bool] = field(
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default=False,
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metadata={"help": "Wether to train on the input in addition to the target text when in s2s mode."}
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)
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target_max_len: int = field(
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default=256,
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metadata={"help": "Maximum target sequence length. Sequences will be right padded (and possibly truncated)."},
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)
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dataset: str = field(
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default=None,
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metadata={"help": "A json file (s2s) or text file with the dataset to train on"}
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)
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block_size: int = field(
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default=512,
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metadata={"help": "size of the blocks the text is split into for training"},
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)
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@dataclass
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class ModelArguments:
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model_name_or_path: Optional[str] = field(
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default="EleutherAI/pythia-12b"
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)
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tokenizer: Optional[str] = field(
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default=None
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)
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trust_remote_code: Optional[bool] = field(
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default=False,
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metadata={"help": "Enable unpickling of arbitrary code in AutoModelForCausalLM#from_pretrained."}
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)
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max_instant_params: int = field(
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default=0,
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metadata={"help": "Maximum amount of paramters to optimize per step in millions"}
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)
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noresize: Optional[bool] = field(
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default=False,
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metadata={"help": "Never resize tokenizer embeddings"}
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)
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@dataclass
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class TrainingArguments():
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cache_dir: Optional[str] = field(
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default=None
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)
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adam8bit: bool = field(
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default=False,
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metadata={"help": "Use 8-bit adam."}
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)
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report_to: str = field(
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default='none',
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metadata={"help": "To use wandb or something else for reporting."}
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)
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resume: bool = field(default=False, metadata={"help": 'Resume from previous checkpoint'})
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ddp_find_unused_parameters: bool = field(default=True, metadata={"help": 'set if trainer should try to find unused parameters'})
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output_dir: str = field(default='./output', metadata={"help": 'The output dir for logs and checkpoints'})
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per_device_train_batch_size: int = field(default=1, metadata={"help": 'The training batch size per GPU. Increase for better speed.'})
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gradient_accumulation_steps: int = field(default=16, metadata={"help": 'How many gradients to accumulate before to perform an optimizer step'})
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epochs: int = field(default=3, metadata={"help": 'How many epochs to train for'})
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weight_decay: float = field(default=0.0, metadata={"help": 'The L2 weight decay rate of AdamW'})
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learning_rate: float = field(default=0.0002, metadata={"help": 'The learnign rate'})
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adam_epsilon: float = field(default=1e-7, metadata={"help": 'Adam epsilon'})
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remove_unused_columns: bool = field(default=False, metadata={"help": 'Removed unused columns. Needed to make this codebase work.'})
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max_grad_norm: float = field(default=0.3, metadata={"help": 'Gradient clipping max norm. This is tuned and works well for all models tested.'})
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gradient_checkpointing: bool = field(default=True, metadata={"help": 'Use gradient checkpointing. You want to use this.'})
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fp16: bool = field(default=False, metadata={"help": 'Train in 16 bit mixed precision'})
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do_train: bool = field(default=True, metadata={"help": 'To train or not to train, that is the question?'})
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do_eval: bool = field(default=False, metadata={"help": 'To eval or not to eval, that is the question?'})
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lr_scheduler_type: str = field(default='constant',
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metadata={"help": 'Learning rate schedule. Constant a bit better than cosine, and has advantage for analysis'})
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warmup_steps: float = field(default=0, metadata={"help": 'number of steps to do a warmup for'})
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logging_steps: int = field(default=10, metadata={"help": 'The frequency of update steps after which to log the loss'})
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group_by_length: bool = field(default=False,
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metadata={"help": 'Group sequences into batches with same length. Saves memory and speeds up training considerably.'})
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storage_fp16: bool = field(default=False, metadata={"help": 'Store untrained layers in 16bit'})
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save_steps: int = field(default=250, metadata={"help": 'How often to save a model'})
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max_checkpoints: int = field(default=0, metadata={"help": 'the maximum amount of checkpoints to save'})
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save_total_limit: int = field(default=40, metadata={"help": 'How many checkpoints to save before the oldest is overwritten'})
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primary_device: str = field(default="cuda:0", metadata={"help": 'The primary device to use'})
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secondary_device: str = field(default="cuda:0", metadata={"help": 'The secondary device to use'})
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train_non_linear_layers: str = field(default=False, metadata={"help": 'train non linear layers'})
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flush_allocator: bool = field(default=False, metadata={"help": 'flush torches allocator on eatch iteration'})
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29
convertinglinear.py
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29
convertinglinear.py
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import torch
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class ConvertingLinear(torch.nn.Linear):
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def __init__(self, in_features, out_features, bias=True, device=None, dtype=None):
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super().__init__(in_features, out_features, bias, device, dtype)
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def forward(self, input: torch.Tensor):
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output_dtype = input.dtype
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output_device = input.device
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if input.device != self.weight.device:
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input = input.to(self.weight.device)
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if input.dtype != self.weight.dtype:
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input = input.to(self.weight.dtype)
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output = torch.nn.Linear.forward(self, input)
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if torch.isnan(output).any() or self.weight.dtype != torch.float32:
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breakpoint()
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return output.to(output_device).to(output_dtype)
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@classmethod
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def fromLinear(cls, in_module: torch.nn.Linear):
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new_module = torch.nn.utils.skip_init(cls, in_features=in_module.in_features,
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out_features=in_module.out_features,
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bias=in_module.bias is not None,
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device=in_module.weight.device,
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dtype=in_module.weight.dtype)
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new_module.weight = in_module.weight
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new_module.bias = in_module.bias
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return new_module
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192
datamodules.py
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192
datamodules.py
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import copy
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import torch
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import typing
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import datasets
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import itertools
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import transformers
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from dataclasses import dataclass
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from torch.nn.utils.rnn import pad_sequence
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from arguments import DataArguments
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IGNORE_INDEX = -100
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def group_texts(examples, block_size: int):
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# Concatenate all texts.
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concatenated_examples = {k: list(itertools.chain(*examples[k])) for k in examples.keys()}
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total_length = len(concatenated_examples[list(examples.keys())[0]])
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# We drop the small remainder, we could add padding if the model supported it instead of this drop, you can
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# customize this part to your needs.
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if total_length >= block_size:
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total_length = (total_length // block_size) * block_size
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# Split by chunks of max_len.
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result = {k: [t[i: i + block_size] for i in range(0, total_length, block_size)] for k, t in concatenated_examples.items()}
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result["labels"] = result["input_ids"].copy()
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return result
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@dataclass
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class DataCollatorForCausalLM(object):
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tokenizer: transformers.PreTrainedTokenizer
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source_max_len: int
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target_max_len: int
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train_on_source: bool
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predict_with_generate: bool
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def __call__(self, instances: typing.Sequence[typing.Dict]) -> typing.Dict[str, torch.Tensor]:
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# Extract elements
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sources = [f"{self.tokenizer.bos_token}{example['input']}" for example in instances]
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targets = [f"{example['output']}{self.tokenizer.eos_token}" for example in instances]
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# Tokenize
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tokenized_sources_with_prompt = self.tokenizer(
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sources,
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max_length=self.source_max_len,
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truncation=True,
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add_special_tokens=False,
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)
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tokenized_targets = self.tokenizer(
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targets,
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max_length=self.target_max_len,
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truncation=True,
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add_special_tokens=False,
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)
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# Build the input and labels for causal LM
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input_ids = []
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labels = []
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for tokenized_source, tokenized_target in zip(
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tokenized_sources_with_prompt['input_ids'],
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tokenized_targets['input_ids']
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):
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if not self.predict_with_generate:
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input_ids.append(torch.tensor(tokenized_source + tokenized_target))
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if not self.train_on_source:
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labels.append(
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torch.tensor([IGNORE_INDEX for _ in range(len(tokenized_source))] + copy.deepcopy(tokenized_target))
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)
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else:
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labels.append(torch.tensor(copy.deepcopy(tokenized_source + tokenized_target)))
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else:
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input_ids.append(torch.tensor(tokenized_source))
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# Apply padding
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padding_value = None
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if self.tokenizer.pad_token_id is not None:
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padding_value = self.tokenizer.pad_token_id
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elif self.tokenizer.eos_token_id is not None:
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padding_value = self.tokenizer.eos_token_id
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else:
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raise RuntimeError("Model dose not have a pad or eos token")
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input_ids = pad_sequence(input_ids, batch_first=True, padding_value=padding_value)
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labels = pad_sequence(labels, batch_first=True, padding_value=IGNORE_INDEX) if not self.predict_with_generate else None
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data_dict = {
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'input_ids': input_ids,
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'attention_mask': input_ids.ne(padding_value),
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}
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if labels is not None:
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data_dict['labels'] = labels
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return data_dict
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def create_data_module_s2s(tokenizer: transformers.PreTrainedTokenizer, data_args: DataArguments, do_train, do_eval, do_predict) -> typing.Dict:
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try:
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dataset = datasets.Dataset.from_json(path_or_paths=data_args.dataset)
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except FileNotFoundError as ex:
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raise ValueError(f"Error loading dataset from {data_args.dataset}, {ex}")
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if do_eval or do_predict:
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if 'eval' in dataset:
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eval_dataset = dataset['eval']
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else:
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print('Splitting train dataset in train and validation according to `eval_dataset_size`')
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dataset = dataset.train_test_split(
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test_size=data_args.eval_dataset_size, shuffle=True, seed=42
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)
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eval_dataset = dataset['test']
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eval_dataset = eval_dataset.map(lambda x: {'length': len(x['input']) + len(x['output'])})
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if 'train' in dataset:
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train_dataset = dataset['train']
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else:
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train_dataset = dataset
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train_dataset = train_dataset.map(lambda x: {'length': len(x['input']) + len(x['output'])})
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data_collator = DataCollatorForCausalLM(
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tokenizer=tokenizer,
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source_max_len=data_args.source_max_len,
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target_max_len=data_args.target_max_len,
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train_on_source=data_args.train_on_source,
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predict_with_generate=False # args.predict_with_generate,
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)
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return dict(
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train_dataset=train_dataset if do_train else None,
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eval_dataset=eval_dataset if do_eval else None,
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predict_dataset=eval_dataset if do_predict else None,
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data_collator=data_collator
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)
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def create_data_module(tokenizer: transformers.PreTrainedTokenizer, data_args: DataArguments, do_train: bool, do_eval: bool, do_predict: bool) -> typing.Dict:
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try:
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dataset = datasets.load_dataset('text', data_files={'train': [data_args.dataset]})
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except FileNotFoundError as ex:
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raise ValueError(f"Error loading dataset from {data_args.dataset}, {ex}")
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if data_args.block_size > tokenizer.model_max_length:
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raise ValueError(f"Block size of {data_args.block_size} is larger than the maximum size supported by the model: {tokenizer.model_max_length}")
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def add_newline_fn(example):
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example['text'] = example['text'] + '\n'
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return example
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dataset = dataset.map(add_newline_fn)
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eval_dataset = None
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if do_eval or do_predict:
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if 'eval' in dataset:
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eval_dataset = dataset['eval']
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else:
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print('Splitting train dataset in train and validation according to `eval_dataset_size`')
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dataset = dataset.train_test_split(
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test_size=data_args.eval_dataset_size, shuffle=True, seed=42
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)
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eval_dataset = dataset['test']
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if 'train' in dataset:
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train_dataset = dataset['train']
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else:
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train_dataset = dataset
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train_dataset_tokenized = train_dataset.map(
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lambda example: tokenizer(example['text']),
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batched=True,
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remove_columns='text',
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num_proc=32,
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load_from_cache_file=True)
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train_dataset_tokenized = train_dataset_tokenized.map(
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lambda example: group_texts(example, data_args.block_size),
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batched=True,
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num_proc=32,
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load_from_cache_file=True,
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desc=f"Grouping texts in chunks of {data_args.block_size}")
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eval_dataset_tokenized = None
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if eval_dataset is not None:
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eval_dataset_tokenized = eval_dataset.map(
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lambda example: tokenizer(example['text']),
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batched=True,
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remove_columns='text',
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num_proc=32)
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eval_dataset_tokenized = eval_dataset_tokenized.map(
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lambda example: group_texts(example, data_args.block_size),
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batched=True,
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num_proc=32,
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load_from_cache_file=True,
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desc=f"Grouping texts in chunks of {data_args.block_size}")
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return dict(
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train_dataset=train_dataset_tokenized if do_train else None,
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eval_dataset=eval_dataset_tokenized if do_eval else None,
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predict_dataset=eval_dataset_tokenized if do_predict else None,
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data_collator=transformers.default_data_collator
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)
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62
tokenizer.py
Normal file
62
tokenizer.py
Normal file
@ -0,0 +1,62 @@
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|
import transformers
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|
|
||||||
|
from arguments import ModelArguments
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|
|
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|
|
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|
DEFAULT_PAD_TOKEN = "[PAD]"
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|
|
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|
|
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|
def smart_tokenizer_and_embedding_resize(
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|
special_tokens_dict: dict,
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|
tokenizer: transformers.PreTrainedTokenizer,
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|
model: transformers.PreTrainedModel,
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):
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|
"""Resize tokenizer and embedding.
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|
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|
Note: This is the unoptimized version that may make your embedding size not be divisible by 64.
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|
"""
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|
num_new_tokens = tokenizer.add_special_tokens(special_tokens_dict)
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|
model.resize_token_embeddings(len(tokenizer))
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|
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|
if num_new_tokens > 0:
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|
input_embeddings_data = model.get_input_embeddings().weight.data
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|
output_embeddings_data = model.get_output_embeddings().weight.data
|
||||||
|
|
||||||
|
input_embeddings_avg = input_embeddings_data[:-num_new_tokens].mean(dim=0, keepdim=True)
|
||||||
|
output_embeddings_avg = output_embeddings_data[:-num_new_tokens].mean(dim=0, keepdim=True)
|
||||||
|
|
||||||
|
input_embeddings_data[-num_new_tokens:] = input_embeddings_avg
|
||||||
|
output_embeddings_data[-num_new_tokens:] = output_embeddings_avg
|
||||||
|
|
||||||
|
|
||||||
|
def get_tokenizer(model, cache_dir, model_args: ModelArguments):
|
||||||
|
print(f'Tokenizer: {model_args.tokenizer if model_args.tokenizer is not None else model_args.model_name_or_path}')
|
||||||
|
tokenizer = transformers.AutoTokenizer.from_pretrained(
|
||||||
|
model_args.tokenizer if model_args.tokenizer is not None else model_args.model_name_or_path,
|
||||||
|
cache_dir=cache_dir,
|
||||||
|
padding_side="right",
|
||||||
|
use_fast=False,
|
||||||
|
eos_token="[EOS]",
|
||||||
|
tokenizer_type='llama' if 'llama' in model_args.model_name_or_path else None,
|
||||||
|
trust_remote_code=model_args.trust_remote_code
|
||||||
|
)
|
||||||
|
if tokenizer._pad_token is None and not model_args.noresize:
|
||||||
|
smart_tokenizer_and_embedding_resize(
|
||||||
|
special_tokens_dict=dict(pad_token=DEFAULT_PAD_TOKEN),
|
||||||
|
tokenizer=tokenizer,
|
||||||
|
model=model,
|
||||||
|
)
|
||||||
|
if 'llama' in model_args.model_name_or_path or isinstance(tokenizer, transformers.LlamaTokenizer):
|
||||||
|
# LLaMA tokenizer may not have correct special tokens set.
|
||||||
|
# Check and add them if missing to prevent them from being parsed into different tokens.
|
||||||
|
# Note that these are present in the vocabulary.
|
||||||
|
# Note also that `model.config.pad_token_id` is 0 which corresponds to `<unk>` token.
|
||||||
|
print('Adding special tokens.')
|
||||||
|
tokenizer.add_special_tokens({
|
||||||
|
"eos_token": tokenizer.convert_ids_to_tokens(model.config.eos_token_id),
|
||||||
|
"bos_token": tokenizer.convert_ids_to_tokens(model.config.bos_token_id),
|
||||||
|
"unk_token": tokenizer.convert_ids_to_tokens(
|
||||||
|
model.config.pad_token_id if model.config.pad_token_id != -1 else tokenizer.pad_token_id
|
||||||
|
),
|
||||||
|
})
|
||||||
|
return tokenizer
|
338
train_dynamic.py
Normal file
338
train_dynamic.py
Normal file
@ -0,0 +1,338 @@
|
|||||||
|
import transformers
|
||||||
|
from transformers import AutoModelForCausalLM, get_scheduler
|
||||||
|
from peft.utils import _get_submodules
|
||||||
|
|
||||||
|
import torch
|
||||||
|
from torch.utils import tensorboard
|
||||||
|
import os
|
||||||
|
import shutil
|
||||||
|
import math
|
||||||
|
from tqdm.auto import tqdm
|
||||||
|
from random import randint
|
||||||
|
from typing import Tuple
|
||||||
|
|
||||||
|
from arguments import DataArguments, ModelArguments, TrainingArguments
|
||||||
|
from datamodules import create_data_module_s2s, create_data_module
|
||||||
|
from convertinglinear import ConvertingLinear
|
||||||
|
from tokenizer import get_tokenizer
|
||||||
|
|
||||||
|
|
||||||
|
def find_all_linear_module_names(model):
|
||||||
|
module_names = set()
|
||||||
|
for name, module in model.named_modules():
|
||||||
|
if isinstance(module, torch.nn.Linear) or isinstance(module, ConvertingLinear):
|
||||||
|
module_names.add(name)
|
||||||
|
|
||||||
|
if 'lm_head' in module_names: # needed for 16-bit
|
||||||
|
module_names.remove('lm_head')
|
||||||
|
return list(module_names)
|
||||||
|
|
||||||
|
|
||||||
|
def find_all_outher_module_names(model):
|
||||||
|
module_names = set()
|
||||||
|
for name, module in model.named_modules():
|
||||||
|
if not (isinstance(module, torch.nn.Linear) or isinstance(module, ConvertingLinear)):
|
||||||
|
module_names.add(name)
|
||||||
|
return list(module_names)
|
||||||
|
|
||||||
|
|
||||||
|
def get_model(model_args: ModelArguments, cache_dir, gradient_checkpointing):
|
||||||
|
dtype = torch.float16 if training_args.fp16 or (training_args.storage_fp16 and model_args.max_instant_params > 0) else torch.float32
|
||||||
|
print(f'loading base model {model_args.model_name_or_path} in {dtype}...')
|
||||||
|
|
||||||
|
model = AutoModelForCausalLM.from_pretrained(
|
||||||
|
model_args.model_name_or_path,
|
||||||
|
cache_dir=cache_dir,
|
||||||
|
torch_dtype=dtype if model_args.max_instant_params > 0 else torch.float32,
|
||||||
|
trust_remote_code=model_args.trust_remote_code,
|
||||||
|
device_map=None,
|
||||||
|
attn_implementation="flash_attention_2"
|
||||||
|
)
|
||||||
|
|
||||||
|
# for name, module in model.named_modules():
|
||||||
|
# if 'norm' in name:
|
||||||
|
# module = module.to(torch.float32)
|
||||||
|
|
||||||
|
return model
|
||||||
|
|
||||||
|
|
||||||
|
@torch.no_grad()
|
||||||
|
def recursive_setattr(obj, attr, value):
|
||||||
|
attr = attr.split('.', 1)
|
||||||
|
if len(attr) == 1:
|
||||||
|
setattr(obj, attr[0], value)
|
||||||
|
else:
|
||||||
|
recursive_setattr(getattr(obj, attr[0]), attr[1], value)
|
||||||
|
|
||||||
|
|
||||||
|
@torch.no_grad()
|
||||||
|
def set_linear_module_frozen_simple(module, frozen: bool, dtype: torch.dtype, device: torch.device):
|
||||||
|
new_module = torch.nn.Linear(module.in_features,
|
||||||
|
module.out_features,
|
||||||
|
module.bias is not None,
|
||||||
|
module.weight.device,
|
||||||
|
dtype)
|
||||||
|
new_module.weight = torch.nn.Parameter(module.weight.detach().clone())
|
||||||
|
new_module.bias = torch.nn.Parameter(module.bias.detach().clone()) if module.bias is not None else None
|
||||||
|
new_module.weight.requires_grad = not frozen
|
||||||
|
if new_module.bias is not None:
|
||||||
|
new_module.bias.requires_grad = not frozen
|
||||||
|
return new_module
|
||||||
|
|
||||||
|
|
||||||
|
@torch.no_grad()
|
||||||
|
def set_linear_module_frozen(module, frozen: bool, dtype: torch.dtype, device: torch.device):
|
||||||
|
if type(module) is torch.nn.Linear:
|
||||||
|
if frozen:
|
||||||
|
module.weight.requires_grad = False
|
||||||
|
if module.bias is not None:
|
||||||
|
module.bias.requires_grad = False
|
||||||
|
return module.to(dtype).to(device)
|
||||||
|
else:
|
||||||
|
new_module = ConvertingLinear.fromLinear(module).to(dtype)
|
||||||
|
new_module.weight.requires_grad = True
|
||||||
|
if new_module.bias is not None:
|
||||||
|
new_module.bias.requires_grad = True
|
||||||
|
return new_module.to(device)
|
||||||
|
elif type(module) is ConvertingLinear:
|
||||||
|
if not frozen:
|
||||||
|
module.weight.requires_grad = True
|
||||||
|
if module.bias is not None:
|
||||||
|
module.bias.requires_grad = True
|
||||||
|
assert False
|
||||||
|
return module.to(dtype).to(device)
|
||||||
|
else:
|
||||||
|
new_module = torch.nn.utils.skip_init(torch.nn.Linear, in_features=module.in_features,
|
||||||
|
out_features=module.out_features,
|
||||||
|
bias=module.bias is not None,
|
||||||
|
device=module.weight.device,
|
||||||
|
dtype=dtype)
|
||||||
|
new_module.weight = torch.nn.Parameter(module.weight.to(dtype))
|
||||||
|
new_module.bias = torch.nn.Parameter(module.bias.to(dtype)) if module.bias is not None else None
|
||||||
|
new_module.weight.requires_grad = False
|
||||||
|
if new_module.bias is not None:
|
||||||
|
new_module.bias.requires_grad = False
|
||||||
|
return new_module.to(device)
|
||||||
|
else:
|
||||||
|
assert False
|
||||||
|
|
||||||
|
|
||||||
|
@torch.no_grad()
|
||||||
|
def freeze_random_modules(model, target_params: int, frozen_dtype: torch.dtype, frozen_device: torch.device, active_device: torch.device):
|
||||||
|
modules = dict(model.named_modules())
|
||||||
|
linear_names = find_all_linear_module_names(model)
|
||||||
|
|
||||||
|
for key in linear_names:
|
||||||
|
if modules[key].weight.dtype != frozen_dtype or modules[key].weight.requires_grad or modules[key].weight.requires_grad:
|
||||||
|
parent, target, target_name = _get_submodules(model, key)
|
||||||
|
setattr(parent, target_name, set_linear_module_frozen(modules[key], True, frozen_dtype, frozen_device))
|
||||||
|
modules = dict(model.named_modules())
|
||||||
|
|
||||||
|
active_paramter_count = sum(p.numel() for p in model.parameters() if p.requires_grad)
|
||||||
|
if active_paramter_count > target_params:
|
||||||
|
raise RuntimeError("Enough paramters must be available to train at least one linear layer")
|
||||||
|
|
||||||
|
while active_paramter_count < target_params and len(linear_names) > 0:
|
||||||
|
i = randint(0, len(linear_names) - 1)
|
||||||
|
parent, target, target_name = _get_submodules(model, linear_names[i])
|
||||||
|
new_module = set_linear_module_frozen(modules[linear_names[i]], False, torch.float32, active_device)
|
||||||
|
setattr(parent, target_name, new_module)
|
||||||
|
active_paramter_count += modules[linear_names[i]].weight.numel()
|
||||||
|
if modules[linear_names[i]].bias is not None:
|
||||||
|
active_paramter_count += modules[linear_names[i]].bias.numel()
|
||||||
|
linear_names.pop(i)
|
||||||
|
modules = dict()
|
||||||
|
|
||||||
|
assert active_paramter_count == sum(p.numel() for p in model.parameters() if p.requires_grad)
|
||||||
|
|
||||||
|
return active_paramter_count
|
||||||
|
|
||||||
|
|
||||||
|
def save_model(model, global_step: int, output_dir: str, max_checkpoints: int = 0):
|
||||||
|
output_chkpt_dir = f"step_{global_step}" if global_step >= 0 else ""
|
||||||
|
output_dir = os.path.join(output_dir, output_chkpt_dir)
|
||||||
|
model.save_pretrained(output_dir)
|
||||||
|
|
||||||
|
if max_checkpoints > 0:
|
||||||
|
files = [f for f in os.listdir(output_dir) if os.path.isdir(os.path.join(output_dir, f)) and f.starts_with("step_")]
|
||||||
|
|
||||||
|
def extract_step(filename):
|
||||||
|
tokens = filename.split('_')
|
||||||
|
return int(tokens[1])
|
||||||
|
|
||||||
|
if len(files) > max_checkpoints:
|
||||||
|
min_step = min(map(extract_step, extract_step))
|
||||||
|
delete_checkpoit_dir = os.path.join(output_dir, f"step_{min_step}")
|
||||||
|
print(f"there are more than {max_checkpoints} checkpints saved, deleting {delete_checkpoit_dir}")
|
||||||
|
shutil.rmtree(delete_checkpoit_dir)
|
||||||
|
|
||||||
|
|
||||||
|
def get_optimizer(model, dynamic_module_names: list, static_module_names: list, lr: float, static_lr: float,
|
||||||
|
weight_decay: float, eps: float, adam8bit: bool):
|
||||||
|
|
||||||
|
parameters = list()
|
||||||
|
modules = dict(model.named_modules())
|
||||||
|
for key in dynamic_module_names:
|
||||||
|
parameters.extend({'params': p} for p in modules[key].parameters() if p.requires_grad)
|
||||||
|
for key in static_module_names:
|
||||||
|
parameters.extend({'params': p, 'lr': static_lr} for p in modules[key].parameters() if p.requires_grad)
|
||||||
|
|
||||||
|
if not adam8bit:
|
||||||
|
optimizer = torch.optim.AdamW(parameters, weight_decay=weight_decay, lr=lr, eps=training_args.adam_epsilon)
|
||||||
|
else:
|
||||||
|
try:
|
||||||
|
import bitsandbytes as bnb
|
||||||
|
except ImportError:
|
||||||
|
raise ImportError("To use 8-bit Adam, bitsandbytes must be available")
|
||||||
|
optimizer = bnb.optim.AdamW8bit(parameters, weight_decay=weight_decay, lr=lr, eps=eps)
|
||||||
|
return optimizer
|
||||||
|
|
||||||
|
|
||||||
|
def compute_dynamic_parameter_ratio(model):
|
||||||
|
modules = dict(model.named_modules())
|
||||||
|
active_linear_parameters = 0
|
||||||
|
total_linear_parameters = 0
|
||||||
|
for key in find_all_linear_module_names(model):
|
||||||
|
active_linear_parameters += sum(p.numel() for p in modules[key].parameters() if p.requires_grad)
|
||||||
|
total_linear_parameters += sum(p.numel() for p in modules[key].parameters())
|
||||||
|
return math.ceil(total_linear_parameters / active_linear_parameters)
|
||||||
|
|
||||||
|
|
||||||
|
def prepare(model_args: ModelArguments, data_args: DataArguments, training_args: TrainingArguments, primary_device: torch.device, secondary_device: torch.device) -> tuple:
|
||||||
|
model = get_model(model_args, training_args.cache_dir, training_args.gradient_checkpointing).to(primary_device)
|
||||||
|
tokenizer = get_tokenizer(model, training_args.cache_dir, model_args)
|
||||||
|
|
||||||
|
if data_args.dataset.endswith("json"):
|
||||||
|
print("Loading dataset in s2s mode")
|
||||||
|
data_module = create_data_module_s2s(tokenizer, data_args, training_args.do_train, training_args.do_eval, False)
|
||||||
|
else:
|
||||||
|
print("Loading dataset in txt mode")
|
||||||
|
data_module = create_data_module(tokenizer, data_args, training_args.do_train, training_args.do_eval, False)
|
||||||
|
dataset = {k: v for k, v in data_module.items() if k != 'predict_dataset'}
|
||||||
|
train_dataloader = torch.utils.data.DataLoader(
|
||||||
|
dataset['train_dataset'],
|
||||||
|
shuffle=True,
|
||||||
|
collate_fn=dataset['data_collator'],
|
||||||
|
batch_size=training_args.per_device_train_batch_size
|
||||||
|
) if dataset['train_dataset'] is not None else None
|
||||||
|
eval_dataloader = torch.utils.data.DataLoader(
|
||||||
|
dataset['eval_dataset'],
|
||||||
|
shuffle=True,
|
||||||
|
collate_fn=dataset['data_collator'],
|
||||||
|
batch_size=training_args.per_device_train_batch_size
|
||||||
|
) if dataset['eval_dataset'] is not None else None
|
||||||
|
|
||||||
|
if model_args.max_instant_params != 0:
|
||||||
|
print(f"Target params {model_args.max_instant_params}m")
|
||||||
|
freeze_random_modules(model, model_args.max_instant_params * 1e6,
|
||||||
|
torch.float16 if training_args.storage_fp16 else torch.float32,
|
||||||
|
frozen_device=primary_device, active_device=secondary_device)
|
||||||
|
|
||||||
|
paramter_count = sum(p.numel() for p in model.parameters())
|
||||||
|
active_paramter_count = sum(p.numel() for p in model.parameters() if p.requires_grad)
|
||||||
|
print(f"Training model with {paramter_count/1e6}m parameters and {active_paramter_count/1e6}m instantanous active paramters")
|
||||||
|
|
||||||
|
dynamic_param_ratio = compute_dynamic_parameter_ratio(model)
|
||||||
|
print(f"dyanamic parameter ratio: 1/{dynamic_param_ratio}")
|
||||||
|
|
||||||
|
steps_per_epoch = math.ceil(len(train_dataloader) / training_args.gradient_accumulation_steps)
|
||||||
|
total_steps = steps_per_epoch * training_args.epochs
|
||||||
|
|
||||||
|
optimizer = get_optimizer(model, find_all_linear_module_names(model),
|
||||||
|
find_all_outher_module_names(model) if training_args.train_non_linear_layers else list(),
|
||||||
|
training_args.learning_rate,
|
||||||
|
training_args.learning_rate / dynamic_param_ratio,
|
||||||
|
training_args.weight_decay,
|
||||||
|
training_args.adam_epsilon,
|
||||||
|
training_args.adam8bit)
|
||||||
|
lr_scheduler = get_scheduler(
|
||||||
|
name=training_args.lr_scheduler_type,
|
||||||
|
optimizer=optimizer,
|
||||||
|
num_warmup_steps=training_args.warmup_steps,
|
||||||
|
num_training_steps=total_steps
|
||||||
|
)
|
||||||
|
return model, optimizer, lr_scheduler, train_dataloader
|
||||||
|
|
||||||
|
|
||||||
|
def train(model_args: ModelArguments, data_args: DataArguments, training_args: TrainingArguments):
|
||||||
|
primary_device = torch.device(training_args.primary_device)
|
||||||
|
secondary_device = torch.device(training_args.secondary_device)
|
||||||
|
log_writer = tensorboard.SummaryWriter()
|
||||||
|
|
||||||
|
model, optimizer, lr_scheduler, train_dataloader = prepare(model_args, data_args, training_args, primary_device, secondary_device)
|
||||||
|
|
||||||
|
steps_per_epoch = math.ceil(len(train_dataloader) / training_args.gradient_accumulation_steps)
|
||||||
|
total_steps = steps_per_epoch * training_args.epochs
|
||||||
|
dynamic_param_ratio = compute_dynamic_parameter_ratio(model)
|
||||||
|
|
||||||
|
if training_args.do_train:
|
||||||
|
progress_bar = tqdm(range(total_steps))
|
||||||
|
global_step = 0
|
||||||
|
model.train()
|
||||||
|
for epoch in range(0, training_args.epochs):
|
||||||
|
print("*** Train ***")
|
||||||
|
print(f'Vram used for model before training starts: {torch.cuda.memory_allocated()/(1024.0*1024.0)}')
|
||||||
|
for step, batch in enumerate(train_dataloader):
|
||||||
|
for key in batch:
|
||||||
|
batch[key] = batch[key].to("cuda:0")
|
||||||
|
outputs = model(**batch)
|
||||||
|
loss = outputs.loss / training_args.gradient_accumulation_steps
|
||||||
|
log_writer.add_scalar("Loss/train", loss, global_step)
|
||||||
|
loss.backward()
|
||||||
|
|
||||||
|
if (step + 1) % training_args.gradient_accumulation_steps == 0 or step + 1 == len(train_dataloader):
|
||||||
|
optimizer.step()
|
||||||
|
lr_scheduler.step()
|
||||||
|
|
||||||
|
model.zero_grad()
|
||||||
|
|
||||||
|
if global_step % 10 == 0:
|
||||||
|
print(loss)
|
||||||
|
|
||||||
|
if global_step % 10 == 0 and model_args.max_instant_params != 0:
|
||||||
|
param_count = freeze_random_modules(model, model_args.max_instant_params * 1e6,
|
||||||
|
torch.float16 if training_args.storage_fp16 else torch.float32,
|
||||||
|
frozen_device=primary_device,
|
||||||
|
active_device=secondary_device)
|
||||||
|
log_writer.add_scalar("Parameters/train", param_count, global_step)
|
||||||
|
optimizer = get_optimizer(model, find_all_linear_module_names(model),
|
||||||
|
find_all_outher_module_names(model) if training_args.train_non_linear_layers else list(),
|
||||||
|
training_args.learning_rate,
|
||||||
|
training_args.learning_rate / dynamic_param_ratio,
|
||||||
|
training_args.weight_decay,
|
||||||
|
training_args.adam_epsilon,
|
||||||
|
training_args.adam8bit)
|
||||||
|
lr_scheduler.optimizer = optimizer
|
||||||
|
|
||||||
|
global_step += 1
|
||||||
|
progress_bar.update()
|
||||||
|
|
||||||
|
if global_step % training_args.save_steps == 0:
|
||||||
|
save_model(model, global_step, training_args.output_dir, training_args.max_checkpoints)
|
||||||
|
if training_args.flush_allocator:
|
||||||
|
torch.cuda.empty_cache()
|
||||||
|
|
||||||
|
# Evaluation
|
||||||
|
if training_args.do_eval:
|
||||||
|
print("*** Evaluate ***")
|
||||||
|
|
||||||
|
save_model(model, global_step, training_args.output_dir)
|
||||||
|
|
||||||
|
return
|
||||||
|
|
||||||
|
|
||||||
|
if __name__ == "__main__":
|
||||||
|
hfparser = transformers.HfArgumentParser((ModelArguments, DataArguments, TrainingArguments))
|
||||||
|
model_args, data_args, training_args, extra_args = hfparser.parse_args_into_dataclasses(return_remaining_strings=True)
|
||||||
|
|
||||||
|
print("Model Arguments:")
|
||||||
|
print(model_args)
|
||||||
|
print("\nData Arguments:")
|
||||||
|
print(data_args)
|
||||||
|
print("\nTraining Arguments:")
|
||||||
|
print(training_args)
|
||||||
|
|
||||||
|
transformers.utils.logging.enable_default_handler()
|
||||||
|
transformers.utils.logging.enable_explicit_format()
|
||||||
|
|
||||||
|
train(model_args, data_args, training_args)
|
Reference in New Issue
Block a user