





'''simple docstring'''

import argparse
import os

import evaluate
import torch
from datasets import load_dataset
from torch.optim import AdamW
from torch.utils.data import DataLoader
from transformers import AutoModelForSequenceClassification, AutoTokenizer, get_linear_schedule_with_warmup, set_seed

from accelerate import Accelerator, DistributedType


########################################################################
# This is a fully working simple example to use Accelerate
# and perform gradient accumulation
#
# This example trains a Bert base model on GLUE MRPC
# in any of the following settings (with the same script):
#   - single CPU or single GPU
#   - multi GPUS (using PyTorch distributed mode)
#   - (multi) TPUs
#   - fp16 (mixed-precision) or fp32 (normal precision)
#
# To run it in each of these various modes, follow the instructions
# in the readme for examples:
# https://github.com/huggingface/accelerate/tree/main/examples
#
########################################################################


lowercase_					= 16
lowercase_					= 32





def lowerCamelCase						(     __lowerCamelCase :    Accelerator					,       __lowerCamelCase :    int = 16    )						->Optional[int]:
    _SCREAMING_SNAKE_CASE									=			AutoTokenizer.from_pretrained("""bert-base-cased"""    )
    _SCREAMING_SNAKE_CASE									=			load_dataset("""glue"""					,       """mrpc"""    )

    def tokenize_function(__lowerCamelCase :    int    ):
        # max_length=None => use the model max length (it's actually the default)
        _SCREAMING_SNAKE_CASE									=			tokenizer(examples["""sentence1"""]					,       examples["""sentence2"""]					,       truncation=__lowerCamelCase					,       max_length=__lowerCamelCase    )
        return outputs

    # Apply the method we just defined to all the examples in all the splits of the dataset
    # starting with the main process first:
    with accelerator.main_process_first():
        _SCREAMING_SNAKE_CASE									=			datasets.map(
            __lowerCamelCase					,       batched=__lowerCamelCase					,       remove_columns=["""idx""", """sentence1""", """sentence2"""]					,       )

    # We also rename the 'label' column to 'labels' which is the expected name for labels by the models of the
    # transformers library
    _SCREAMING_SNAKE_CASE									=			tokenized_datasets.rename_column("""label"""					,       """labels"""    )

    def collate_fn(__lowerCamelCase :    List[str]    ):
        # On TPU it's best to pad everything to the same length or training will be very slow.
        _SCREAMING_SNAKE_CASE									=			128 if accelerator.distributed_type == DistributedType.TPU else None
        # When using mixed precision we want round multiples of 8/16
        if accelerator.mixed_precision == "fp8":
            _SCREAMING_SNAKE_CASE									=			16
        elif accelerator.mixed_precision != "no":
            _SCREAMING_SNAKE_CASE									=			8
        else:
            _SCREAMING_SNAKE_CASE									=			None

        return tokenizer.pad(
            __lowerCamelCase					,       padding="""longest"""					,       max_length=__lowerCamelCase					,       pad_to_multiple_of=__lowerCamelCase					,       return_tensors="""pt"""					,       )

    # Instantiate dataloaders.
    _SCREAMING_SNAKE_CASE									=			DataLoader(
        tokenized_datasets["""train"""]					,       shuffle=__lowerCamelCase					,       collate_fn=__lowerCamelCase					,       batch_size=__lowerCamelCase    )
    _SCREAMING_SNAKE_CASE									=			DataLoader(
        tokenized_datasets["""validation"""]					,       shuffle=__lowerCamelCase					,       collate_fn=__lowerCamelCase					,       batch_size=__lowerCamelCase    )

    return train_dataloader, eval_dataloader


# For testing only
if os.environ.get("""TESTING_MOCKED_DATALOADERS""", None) == "1":
      from accelerate.test_utils.training import mocked_dataloaders

      lowercase_					= mocked_dataloaders  # noqa: F811





def lowerCamelCase						(     __lowerCamelCase :    List[str]					,       __lowerCamelCase :    Optional[int]    )						->str:
    # For testing only
    if os.environ.get("""TESTING_MOCKED_DATALOADERS"""					,       __lowerCamelCase    ) == "1":
        _SCREAMING_SNAKE_CASE									=			2
    # New Code #
    _SCREAMING_SNAKE_CASE									=			int(args.gradient_accumulation_steps    )
    # Initialize accelerator
    _SCREAMING_SNAKE_CASE									=			Accelerator(
        cpu=args.cpu					,       mixed_precision=args.mixed_precision					,       gradient_accumulation_steps=__lowerCamelCase    )
    if accelerator.distributed_type == DistributedType.TPU and gradient_accumulation_steps > 1:
        raise NotImplementedError(
            """Gradient accumulation on TPUs is currently not supported. Pass `gradient_accumulation_steps=1`"""    )
    # Sample hyper-parameters for learning rate, batch size, seed and a few other HPs
    _SCREAMING_SNAKE_CASE									=			config["""lr"""]
    _SCREAMING_SNAKE_CASE									=			int(config["""num_epochs"""]    )
    _SCREAMING_SNAKE_CASE									=			int(config["""seed"""]    )
    _SCREAMING_SNAKE_CASE									=			int(config["""batch_size"""]    )

    _SCREAMING_SNAKE_CASE									=			evaluate.load("""glue"""					,       """mrpc"""    )

    set_seed(__lowerCamelCase    )
    _SCREAMING_SNAKE_CASE				,       _SCREAMING_SNAKE_CASE									=			get_dataloaders(__lowerCamelCase					,       __lowerCamelCase    )
    # Instantiate the model (we build the model here so that the seed also control new weights initialization)
    _SCREAMING_SNAKE_CASE									=			AutoModelForSequenceClassification.from_pretrained("""bert-base-cased"""					,       return_dict=__lowerCamelCase    )

    # We could avoid this line since the accelerator is set with `device_placement=True` (default value).
    # Note that if you are placing tensors on devices manually, this line absolutely needs to be before the optimizer
    # creation otherwise training will not work on TPU (`accelerate` will kindly throw an error to make us aware of that).
    _SCREAMING_SNAKE_CASE									=			model.to(accelerator.device    )

    # Instantiate optimizer
    _SCREAMING_SNAKE_CASE									=			AdamW(params=model.parameters()					,       lr=__lowerCamelCase    )

    # Instantiate scheduler
    _SCREAMING_SNAKE_CASE									=			get_linear_schedule_with_warmup(
        optimizer=__lowerCamelCase					,       num_warmup_steps=100					,       num_training_steps=(len(__lowerCamelCase    ) * num_epochs)					,       )

    # Prepare everything
    # There is no specific order to remember, we just need to unpack the objects in the same order we gave them to the
    # prepare method.
    _SCREAMING_SNAKE_CASE				,       _SCREAMING_SNAKE_CASE				,       _SCREAMING_SNAKE_CASE				,       _SCREAMING_SNAKE_CASE				,       _SCREAMING_SNAKE_CASE									=			accelerator.prepare(
        __lowerCamelCase					,       __lowerCamelCase					,       __lowerCamelCase					,       __lowerCamelCase					,       __lowerCamelCase    )

    # Now we train the model
    for epoch in range(__lowerCamelCase    ):
        model.train()
        for step, batch in enumerate(__lowerCamelCase    ):
            # We could avoid this line since we set the accelerator with `device_placement=True`.
            batch.to(accelerator.device    )
            # New code #
            # We use the new `accumulate` context manager to perform gradient accumulation
            # We also currently do not support TPUs nor advise it as bugs were found on the XLA side when running our tests.
            with accelerator.accumulate(__lowerCamelCase    ):
                _SCREAMING_SNAKE_CASE									=			model(**__lowerCamelCase    )
                _SCREAMING_SNAKE_CASE									=			output.loss
                accelerator.backward(__lowerCamelCase    )
                optimizer.step()
                lr_scheduler.step()
                optimizer.zero_grad()

        model.eval()
        for step, batch in enumerate(__lowerCamelCase    ):
            # We could avoid this line since we set the accelerator with `device_placement=True`.
            batch.to(accelerator.device    )
            with torch.no_grad():
                _SCREAMING_SNAKE_CASE									=			model(**__lowerCamelCase    )
            _SCREAMING_SNAKE_CASE									=			outputs.logits.argmax(dim=-1    )
            _SCREAMING_SNAKE_CASE				,       _SCREAMING_SNAKE_CASE									=			accelerator.gather_for_metrics((predictions, batch["""labels"""])    )
            metric.add_batch(
                predictions=__lowerCamelCase					,       references=__lowerCamelCase					,       )

        _SCREAMING_SNAKE_CASE									=			metric.compute()
        # Use accelerator.print to print only on the main process.
        accelerator.print(F'epoch {epoch}:'					,       __lowerCamelCase    )





def lowerCamelCase						(     )						->Any:
    _SCREAMING_SNAKE_CASE									=			argparse.ArgumentParser(description="""Simple example of training script."""    )
    parser.add_argument(
        """--mixed_precision"""					,       type=__lowerCamelCase					,       default=__lowerCamelCase					,       choices=["""no""", """fp16""", """bf16""", """fp8"""]					,       help="""Whether to use mixed precision. Choose"""
        """between fp16 and bf16 (bfloat16). Bf16 requires PyTorch >= 1.10."""
        """and an Nvidia Ampere GPU."""					,       )
    # New Code #
    parser.add_argument(
        """--gradient_accumulation_steps"""					,       type=__lowerCamelCase					,       default=1					,       help="""The number of minibatches to be ran before gradients are accumulated."""					,       )
    parser.add_argument("""--cpu"""					,       action="""store_true"""					,       help="""If passed, will train on the CPU."""    )
    _SCREAMING_SNAKE_CASE									=			parser.parse_args()
    _SCREAMING_SNAKE_CASE									=			{"""lr""": 2e-5, """num_epochs""": 3, """seed""": 42, """batch_size""": 16}
    training_function(__lowerCamelCase					,       __lowerCamelCase    )


if __name__ == "__main__":
      main()








'''simple docstring'''






import argparse
import gc
import json
import os
import shutil
import warnings

import torch

from transformers import LlamaConfig, LlamaForCausalLM, LlamaTokenizer


try:
						from transformers import LlamaTokenizerFast
except ImportError as e:
						warnings.warn(e)
						warnings.warn(
						    "The converted tokenizer will be the `slow` tokenizer. To use the fast, update your `tokenizers` library and re-run the tokenizer conversion"
						)
						UpperCamelCase__:   str								=			None
UpperCamelCase__:   int								=			{
    "7B": 11008,
    "13B": 13824,
    "30B": 17920,
    "65B": 22016,
    "70B": 28672,
}
UpperCamelCase__:   List[Any]								=			{
    "7B": 1,
    "7Bf": 1,
    "13B": 2,
    "13Bf": 2,
    "30B": 4,
    "65B": 8,
    "70B": 8,
    "70Bf": 8,
}


def  snake_case_     (					_lowerCAmelCase  :						Tuple   ,      _lowerCAmelCase  :						Tuple=1   ,      _lowerCAmelCase  :						List[Any]=256  )      ->   Optional[Any]:
							return multiple_of * ((int(ffn_dim_multiplier * int(8 * n / 3  )  ) + multiple_of - 1) // multiple_of)


def  snake_case_     (					_lowerCAmelCase  :						List[str]  )      ->   str:
							with open(_lowerCAmelCase   ,      '''r'''  ) as f:
														return json.load(_lowerCAmelCase  )


def  snake_case_     (					_lowerCAmelCase  :						Union[str, Any]   ,      _lowerCAmelCase  :						Any  )      ->   Optional[Any]:
							with open(_lowerCAmelCase   ,      '''w'''  ) as f:
														json.dump(_lowerCAmelCase   ,      _lowerCAmelCase  )


def  snake_case_     (					_lowerCAmelCase  :						Dict   ,      _lowerCAmelCase  :						Tuple   ,      _lowerCAmelCase  :						Any   ,      _lowerCAmelCase  :						Any=True  )      ->   List[Any]:
							os.makedirs(_lowerCAmelCase   ,      exist_ok=_lowerCAmelCase  )
							UpperCAmelCase :       int 							=		os.path.join(_lowerCAmelCase   ,      '''tmp'''  )
							os.makedirs(_lowerCAmelCase   ,      exist_ok=_lowerCAmelCase  )

							UpperCAmelCase :       List[str] 							=		read_json(os.path.join(_lowerCAmelCase   ,      '''params.json'''  )  )
							UpperCAmelCase :       str 							=		NUM_SHARDS[model_size]
							UpperCAmelCase :       Any 							=		params['''n_layers''']
							UpperCAmelCase :       str 							=		params['''n_heads''']
							UpperCAmelCase :       Any 							=		n_heads // num_shards
							UpperCAmelCase :       List[str] 							=		params['''dim''']
							UpperCAmelCase :       Optional[Any] 							=		dim // n_heads
							UpperCAmelCase :       str 							=		1_0_0_0_0.0
							UpperCAmelCase :       Optional[int] 							=		1.0 / (base ** (torch.arange(0   ,      _lowerCAmelCase   ,      2  ).float() / dims_per_head))

							if "n_kv_heads" in params:
														UpperCAmelCase :       Tuple 							=		params['''n_kv_heads''']  # for GQA / MQA
														UpperCAmelCase :       Optional[int] 							=		n_heads_per_shard // num_key_value_heads
														UpperCAmelCase :       Optional[Any] 							=		dim // num_key_value_heads
							else:  # compatibility with other checkpoints
														UpperCAmelCase :       List[str] 							=		n_heads
														UpperCAmelCase :       Optional[int] 							=		n_heads_per_shard
														UpperCAmelCase :       List[str] 							=		dim

							# permute for sliced rotary
							def permute(_lowerCAmelCase  :						Tuple   ,      _lowerCAmelCase  :						Optional[Any]=n_heads   ,      _lowerCAmelCase  :						int=dim   ,      _lowerCAmelCase  :						Dict=dim  ):
														return w.view(_lowerCAmelCase   ,      dima // n_heads // 2   ,      2   ,      _lowerCAmelCase  ).transpose(1   ,      2  ).reshape(_lowerCAmelCase   ,      _lowerCAmelCase  )

							print(f"""Fetching all parameters from the checkpoint at {input_base_path}."""  )
							# Load weights
							if model_size == "7B":
														# Not sharded
														# (The sharded implementation would also work, but this is simpler.)
														UpperCAmelCase :       int 							=		torch.load(os.path.join(_lowerCAmelCase   ,      '''consolidated.00.pth'''  )   ,      map_location='''cpu'''  )
							else:
														# Sharded
														UpperCAmelCase :       Optional[Any] 							=		[
														    torch.load(os.path.join(_lowerCAmelCase   ,      f"""consolidated.{i:02d}.pth"""  )   ,      map_location='''cpu'''  )
														    for i in range(_lowerCAmelCase  )
														]
							UpperCAmelCase :       Any 							=		0
							UpperCAmelCase :       str 							=		{'''weight_map''': {}}
							for layer_i in range(_lowerCAmelCase  ):
														UpperCAmelCase :       Optional[Any] 							=		f"""pytorch_model-{layer_i + 1}-of-{n_layers + 1}.bin"""
														if model_size == "7B":
																					# Unsharded
																					UpperCAmelCase :       Optional[int] 							=		{
																					    f"""model.layers.{layer_i}.self_attn.q_proj.weight""": permute(
																					        loaded[f"""layers.{layer_i}.attention.wq.weight"""]  ),
																					    f"""model.layers.{layer_i}.self_attn.k_proj.weight""": permute(
																					        loaded[f"""layers.{layer_i}.attention.wk.weight"""]  ),
																					    f"""model.layers.{layer_i}.self_attn.v_proj.weight""": loaded[f"""layers.{layer_i}.attention.wv.weight"""],
																					    f"""model.layers.{layer_i}.self_attn.o_proj.weight""": loaded[f"""layers.{layer_i}.attention.wo.weight"""],
																					    f"""model.layers.{layer_i}.mlp.gate_proj.weight""": loaded[f"""layers.{layer_i}.feed_forward.w1.weight"""],
																					    f"""model.layers.{layer_i}.mlp.down_proj.weight""": loaded[f"""layers.{layer_i}.feed_forward.w2.weight"""],
																					    f"""model.layers.{layer_i}.mlp.up_proj.weight""": loaded[f"""layers.{layer_i}.feed_forward.w3.weight"""],
																					    f"""model.layers.{layer_i}.input_layernorm.weight""": loaded[f"""layers.{layer_i}.attention_norm.weight"""],
																					    f"""model.layers.{layer_i}.post_attention_layernorm.weight""": loaded[f"""layers.{layer_i}.ffn_norm.weight"""],
																					}
														else:
																					# Sharded
																					# Note that attention.w{q,k,v,o}, feed_fordward.w[1,2,3], attention_norm.weight and ffn_norm.weight share
																					# the same storage object, saving attention_norm and ffn_norm will save other weights too, which is
																					# redundant as other weights will be stitched from multiple shards. To avoid that, they are cloned.

																					UpperCAmelCase :       List[str] 							=		{
																					    f"""model.layers.{layer_i}.input_layernorm.weight""": loaded[0][
																					        f"""layers.{layer_i}.attention_norm.weight"""
																					    ].clone(),
																					    f"""model.layers.{layer_i}.post_attention_layernorm.weight""": loaded[0][
																					        f"""layers.{layer_i}.ffn_norm.weight"""
																					    ].clone(),
																					}
																					UpperCAmelCase :       Union[str, Any] 							=		permute(
																					    torch.cat(
																					        [
																					            loaded[i][f"""layers.{layer_i}.attention.wq.weight"""].view(_lowerCAmelCase   ,      _lowerCAmelCase   ,      _lowerCAmelCase  )
																					            for i in range(_lowerCAmelCase  )
																					        ]   ,      dim=0   ,      ).reshape(_lowerCAmelCase   ,      _lowerCAmelCase  )  )
																					UpperCAmelCase :       Optional[Any] 							=		permute(
																					    torch.cat(
																					        [
																					            loaded[i][f"""layers.{layer_i}.attention.wk.weight"""].view(
																					                _lowerCAmelCase   ,      _lowerCAmelCase   ,      _lowerCAmelCase  )
																					            for i in range(_lowerCAmelCase  )
																					        ]   ,      dim=0   ,      ).reshape(_lowerCAmelCase   ,      _lowerCAmelCase  )   ,      _lowerCAmelCase   ,      _lowerCAmelCase   ,      _lowerCAmelCase   ,      )
																					UpperCAmelCase :       str 							=		torch.cat(
																					    [
																					        loaded[i][f"""layers.{layer_i}.attention.wv.weight"""].view(
																					            _lowerCAmelCase   ,      _lowerCAmelCase   ,      _lowerCAmelCase  )
																					        for i in range(_lowerCAmelCase  )
																					    ]   ,      dim=0   ,      ).reshape(_lowerCAmelCase   ,      _lowerCAmelCase  )

																					UpperCAmelCase :       Optional[int] 							=		torch.cat(
																					    [loaded[i][f"""layers.{layer_i}.attention.wo.weight"""] for i in range(_lowerCAmelCase  )]   ,      dim=1  )
																					UpperCAmelCase :       Any 							=		torch.cat(
																					    [loaded[i][f"""layers.{layer_i}.feed_forward.w1.weight"""] for i in range(_lowerCAmelCase  )]   ,      dim=0  )
																					UpperCAmelCase :       str 							=		torch.cat(
																					    [loaded[i][f"""layers.{layer_i}.feed_forward.w2.weight"""] for i in range(_lowerCAmelCase  )]   ,      dim=1  )
																					UpperCAmelCase :       Tuple 							=		torch.cat(
																					    [loaded[i][f"""layers.{layer_i}.feed_forward.w3.weight"""] for i in range(_lowerCAmelCase  )]   ,      dim=0  )

														UpperCAmelCase :       Any 							=		inv_freq
														for k, v in state_dict.items():
																					UpperCAmelCase :       List[Any] 							=		filename
																					param_count += v.numel()
														torch.save(_lowerCAmelCase   ,      os.path.join(_lowerCAmelCase   ,      _lowerCAmelCase  )  )

							UpperCAmelCase :       Optional[int] 							=		f"""pytorch_model-{n_layers + 1}-of-{n_layers + 1}.bin"""
							if model_size == "7B":
														# Unsharded
														UpperCAmelCase :       str 							=		{
														    '''model.embed_tokens.weight''': loaded['''tok_embeddings.weight'''],
														    '''model.norm.weight''': loaded['''norm.weight'''],
														    '''lm_head.weight''': loaded['''output.weight'''],
														}
							else:
														UpperCAmelCase :       Any 							=		{
														    '''model.norm.weight''': loaded[0]['''norm.weight'''],
														    '''model.embed_tokens.weight''': torch.cat(
														        [loaded[i]['''tok_embeddings.weight'''] for i in range(_lowerCAmelCase  )]   ,      dim=1  ),
														    '''lm_head.weight''': torch.cat([loaded[i]['''output.weight'''] for i in range(_lowerCAmelCase  )]   ,      dim=0  ),
														}

							for k, v in state_dict.items():
														UpperCAmelCase :       Optional[int] 							=		filename
														param_count += v.numel()
							torch.save(_lowerCAmelCase   ,      os.path.join(_lowerCAmelCase   ,      _lowerCAmelCase  )  )

							# Write configs
							UpperCAmelCase :       Union[str, Any] 							=		{'''total_size''': param_count * 2}
							write_json(_lowerCAmelCase   ,      os.path.join(_lowerCAmelCase   ,      '''pytorch_model.bin.index.json'''  )  )
							UpperCAmelCase :       int 							=		params['''ffn_dim_multiplier'''] if '''ffn_dim_multiplier''' in params else 1
							UpperCAmelCase :       Tuple 							=		params['''multiple_of'''] if '''multiple_of''' in params else 256
							UpperCAmelCase :       Any 							=		LlamaConfig(
							    hidden_size=_lowerCAmelCase   ,      intermediate_size=compute_intermediate_size(_lowerCAmelCase   ,      _lowerCAmelCase   ,      _lowerCAmelCase  )   ,      num_attention_heads=params['''n_heads''']   ,      num_hidden_layers=params['''n_layers''']   ,      rms_norm_eps=params['''norm_eps''']   ,      num_key_value_heads=_lowerCAmelCase   ,      )
							config.save_pretrained(_lowerCAmelCase  )

							# Make space so we can load the model properly now.
							del state_dict
							del loaded
							gc.collect()

							print('''Loading the checkpoint in a Llama model.'''  )
							UpperCAmelCase :       Optional[int] 							=		LlamaForCausalLM.from_pretrained(_lowerCAmelCase   ,      torch_dtype=torch.floataa   ,      low_cpu_mem_usage=_lowerCAmelCase  )
							# Avoid saving this as part of the config.
							del model.config._name_or_path

							print('''Saving in the Transformers format.'''  )
							model.save_pretrained(_lowerCAmelCase   ,      safe_serialization=_lowerCAmelCase  )
							shutil.rmtree(_lowerCAmelCase  )


def  snake_case_     (					_lowerCAmelCase  :						int   ,      _lowerCAmelCase  :						Union[str, Any]  )      ->   List[str]:
							# Initialize the tokenizer based on the `spm` model
							UpperCAmelCase :       Dict 							=		LlamaTokenizer if LlamaTokenizerFast is None else LlamaTokenizerFast
							print(f"""Saving a {tokenizer_class.__name__} to {tokenizer_path}."""  )
							UpperCAmelCase :       List[Any] 							=		tokenizer_class(_lowerCAmelCase  )
							tokenizer.save_pretrained(_lowerCAmelCase  )


def  snake_case_     (					)      ->   List[Any]:
							UpperCAmelCase :       int 							=		argparse.ArgumentParser()
							parser.add_argument(
							    '''--input_dir'''   ,      help='''Location of LLaMA weights, which contains tokenizer.model and model folders'''   ,      )
							parser.add_argument(
							    '''--model_size'''   ,      choices=['''7B''', '''7Bf''', '''13B''', '''13Bf''', '''30B''', '''65B''', '''70B''', '''70Bf''', '''tokenizer_only''']   ,      )
							parser.add_argument(
							    '''--output_dir'''   ,      help='''Location to write HF model and tokenizer'''   ,      )
							parser.add_argument('''--safe_serialization'''   ,      type=_lowerCAmelCase   ,      help='''Whether or not to save using `safetensors`.'''  )
							UpperCAmelCase :       List[Any] 							=		parser.parse_args()
							if args.model_size != "tokenizer_only":
														write_model(
														    model_path=args.output_dir   ,      input_base_path=os.path.join(args.input_dir   ,      args.model_size  )   ,      model_size=args.model_size   ,      safe_serialization=args.safe_serialization   ,      )
							UpperCAmelCase :       Optional[int] 							=		os.path.join(args.input_dir   ,      '''tokenizer.model'''  )
							write_tokenizer(args.output_dir   ,      _lowerCAmelCase  )


if __name__ == "__main__":
						main()





