
# Copyright 2021 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import argparse
import os

from accelerate.utils import ComputeEnvironment

from .cluster import get_cluster_input
from .config_args import cache_dir, default_config_file, default_yaml_config_file, load_config_from_file  # noqa: F401
from .config_utils import _ask_field, _ask_options, _convert_compute_environment  # noqa: F401
from .sagemaker import get_sagemaker_input


__A				='''Launches a series of prompts to create and save a `default_config.yaml` configuration file for your training system. Should always be ran first on your machine'''





def 			lowerCamelCase_ (				):
				lowerCamelCase_						=			_ask_options(
				    "In which compute environment are you running?"	, ["This machine", "AWS (Amazon SageMaker)"]	, _convert_compute_environment	, )
				if compute_environment == ComputeEnvironment.AMAZON_SAGEMAKER:
								lowerCamelCase_						=			get_sagemaker_input()
				else:
								lowerCamelCase_						=			get_cluster_input()
				return config





def 			lowerCamelCase_ (				lowerCamelCase__=None    ):
				if subparsers is not None:
								lowerCamelCase_						=			subparsers.add_parser("config"	, description=lowerCamelCase__    )
				else:
								lowerCamelCase_						=			argparse.ArgumentParser("Accelerate config command"	, description=lowerCamelCase__    )

				parser.add_argument(
				    "--config_file"	, default=lowerCamelCase__	, help=(
				        "The path to use to store the config file. Will default to a file named default_config.yaml in the cache "
				        "location, which is the content of the environment `HF_HOME` suffixed with 'accelerate', or if you don't have "
				        "such an environment variable, your cache directory ('~/.cache' or the content of `XDG_CACHE_HOME`) suffixed "
				        "with 'huggingface'."
				    )	, )

				if subparsers is not None:
								parser.set_defaults(func=lowerCamelCase__    )
				return parser





def 			lowerCamelCase_ (				lowerCamelCase__    ):
				lowerCamelCase_						=			get_user_input()
				if args.config_file is not None:
								lowerCamelCase_						=			args.config_file
				else:
								if not os.path.isdir(lowerCamelCase__    ):
												os.makedirs(lowerCamelCase__    )
								lowerCamelCase_						=			default_yaml_config_file

				if config_file.endswith(".json"    ):
								config.to_json_file(lowerCamelCase__    )
				else:
								config.to_yaml_file(lowerCamelCase__    )
				print(F'accelerate configuration saved at {config_file}'    )





def 			lowerCamelCase_ (				):
				lowerCamelCase_						=			config_command_parser()
				lowerCamelCase_						=			parser.parse_args()
				config_command(lowerCamelCase__    )


if __name__ == "__main__":
			main()









import argparse
import csv
import logging
import os
import random

import numpy as np
import torch
from torch.utils.data import DataLoader, RandomSampler, SequentialSampler, TensorDataset
from tqdm import tqdm, trange

from transformers import (
    CONFIG_NAME,
    WEIGHTS_NAME,
    AdamW,
    OpenAIGPTDoubleHeadsModel,
    OpenAIGPTTokenizer,
    get_linear_schedule_with_warmup,
)


logging.basicConfig(
    format='''%(asctime)s - %(levelname)s - %(name)s - %(message)s''', datefmt='''%m/%d/%Y %H:%M:%S''', level=logging.INFO
)
A    :					Tuple =      logging.getLogger(__name__)







def    __lowerCamelCase					(							__a   :Optional[int]    ,     __a   :List[str]    )		->				Tuple:






		"""simple docstring"""

		A__        =   np.argmax(__a    ,     axis=1    )
		return np.sum(outputs == labels    )







def    __lowerCamelCase					(							__a   :Tuple    )		->				Dict:






		"""simple docstring"""

		with open(__a    ,     encoding="""utf_8"""    ) as f:
				A__        =   csv.reader(__a    )
				A__        =   []
				next(__a    )  # skip the first line
				for line in tqdm(__a    ):
						output.append((""" """.join(line[1:5]    ), line[5], line[6], int(line[-1]    ) - 1)    )
		return output







def    __lowerCamelCase					(							__a   :Optional[int]    ,     __a   :List[Any]    ,     __a   :Dict    ,     __a   :Optional[Any]    ,     __a   :Optional[Any]    ,     __a   :int    )		->				Union[str, Any]:






		"""simple docstring"""

		A__        =   []
		for dataset in encoded_datasets:
				A__        =   len(__a    )
				A__        =   np.zeros((n_batch, 2, input_len)    ,     dtype=np.intaa    )
				A__        =   np.zeros((n_batch, 2)    ,     dtype=np.intaa    )
				A__        =   np.full((n_batch, 2, input_len)    ,     fill_value=-1_0_0    ,     dtype=np.intaa    )
				A__        =   np.zeros((n_batch,)    ,     dtype=np.intaa    )
				for (
				    i,
				    (story, conta, conta, mc_label),
				) in enumerate(__a    ):
						A__        =   [start_token] + story[:cap_length] + [delimiter_token] + conta[:cap_length] + [clf_token]
						A__        =   [start_token] + story[:cap_length] + [delimiter_token] + conta[:cap_length] + [clf_token]
						A__        =   with_conta
						A__        =   with_conta
						A__        =   len(__a    ) - 1
						A__        =   len(__a    ) - 1
						A__        =   with_conta
						A__        =   with_conta
						A__        =   mc_label
				A__        =   (input_ids, mc_token_ids, lm_labels, mc_labels)
				tensor_datasets.append(tuple(torch.tensor(__a    ) for t in all_inputs    )    )
		return tensor_datasets







def    __lowerCamelCase					(							)		->				Union[str, Any]:






		"""simple docstring"""

		A__        =   argparse.ArgumentParser()
		parser.add_argument("""--model_name"""    ,     type=__a    ,     default="""openai-gpt"""    ,     help="""pretrained model name"""    )
		parser.add_argument("""--do_train"""    ,     action="""store_true"""    ,     help="""Whether to run training."""    )
		parser.add_argument("""--do_eval"""    ,     action="""store_true"""    ,     help="""Whether to run eval on the dev set."""    )
		parser.add_argument(
		    """--output_dir"""    ,     default=__a    ,     type=__a    ,     required=__a    ,     help="""The output directory where the model predictions and checkpoints will be written."""    ,     )
		parser.add_argument("""--train_dataset"""    ,     type=__a    ,     default=""""""    )
		parser.add_argument("""--eval_dataset"""    ,     type=__a    ,     default=""""""    )
		parser.add_argument("""--seed"""    ,     type=__a    ,     default=4_2    )
		parser.add_argument("""--num_train_epochs"""    ,     type=__a    ,     default=3    )
		parser.add_argument("""--train_batch_size"""    ,     type=__a    ,     default=8    )
		parser.add_argument("""--eval_batch_size"""    ,     type=__a    ,     default=1_6    )
		parser.add_argument("""--adam_epsilon"""    ,     default=1E-8    ,     type=__a    ,     help="""Epsilon for Adam optimizer."""    )
		parser.add_argument("""--max_grad_norm"""    ,     type=__a    ,     default=1    )
		parser.add_argument(
		    """--max_steps"""    ,     default=-1    ,     type=__a    ,     help=(
		        """If > 0: set total number of training                         steps to perform. Override num_train_epochs."""
		    )    ,     )
		parser.add_argument(
		    """--gradient_accumulation_steps"""    ,     type=__a    ,     default=1    ,     help="""Number of updates steps to accumulate before                        performing a backward/update pass."""    ,     )
		parser.add_argument("""--learning_rate"""    ,     type=__a    ,     default=6.25E-5    )
		parser.add_argument("""--warmup_steps"""    ,     default=0    ,     type=__a    ,     help="""Linear warmup over warmup_steps."""    )
		parser.add_argument("""--lr_schedule"""    ,     type=__a    ,     default="""warmup_linear"""    )
		parser.add_argument("""--weight_decay"""    ,     type=__a    ,     default=0.01    )
		parser.add_argument("""--lm_coef"""    ,     type=__a    ,     default=0.9    )
		parser.add_argument("""--n_valid"""    ,     type=__a    ,     default=3_7_4    )

		parser.add_argument("""--server_ip"""    ,     type=__a    ,     default=""""""    ,     help="""Can be used for distant debugging."""    )
		parser.add_argument("""--server_port"""    ,     type=__a    ,     default=""""""    ,     help="""Can be used for distant debugging."""    )
		A__        =   parser.parse_args()
		print(__a    )

		if args.server_ip and args.server_port:
				# Distant debugging - see https://code.visualstudio.com/docs/python/debugging#_attach-to-a-local-script
				import ptvsd

				print("""Waiting for debugger attach"""    )
				ptvsd.enable_attach(address=(args.server_ip, args.server_port)    ,     redirect_output=__a    )
				ptvsd.wait_for_attach()

		random.seed(args.seed    )
		np.random.seed(args.seed    )
		torch.manual_seed(args.seed    )
		torch.cuda.manual_seed_all(args.seed    )

		A__        =   torch.device("""cuda""" if torch.cuda.is_available() else """cpu"""    )
		A__        =   torch.cuda.device_count()
		logger.info("""device: {}, n_gpu {}""".format(__a    ,     __a    )    )

		if not args.do_train and not args.do_eval:
				raise ValueError("""At least one of `do_train` or `do_eval` must be True."""    )

		if not os.path.exists(args.output_dir    ):
				os.makedirs(args.output_dir    )

		# Load tokenizer and model
		# This loading functions also add new tokens and embeddings called `special tokens`
		# These new embeddings will be fine-tuned on the RocStories dataset
		A__        =   ["""_start_""", """_delimiter_""", """_classify_"""]
		A__        =   OpenAIGPTTokenizer.from_pretrained(args.model_name    )
		tokenizer.add_tokens(__a    )
		A__        =   tokenizer.convert_tokens_to_ids(__a    )
		A__        =   OpenAIGPTDoubleHeadsModel.from_pretrained(args.model_name    )
		model.resize_token_embeddings(len(__a    )    )
		model.to(__a    )

		# Load and encode the datasets
		def tokenize_and_encode(__a   :Tuple    ):
				if isinstance(__a    ,     __a    ):
						return tokenizer.convert_tokens_to_ids(tokenizer.tokenize(__a    )    )
				elif isinstance(__a    ,     __a    ):
						return obj
				return [tokenize_and_encode(__a    ) for o in obj]

		logger.info("""Encoding dataset..."""    )
		A__        =   load_rocstories_dataset(args.train_dataset    )
		A__        =   load_rocstories_dataset(args.eval_dataset    )
		A__        =   (train_dataset, eval_dataset)
		A__        =   tokenize_and_encode(__a    )

		# Compute the max input length for the Transformer
		A__        =   model.config.n_positions // 2 - 2
		A__        =   max(
		    len(story[:max_length]    ) + max(len(conta[:max_length]    )    ,     len(conta[:max_length]    )    ) + 3
		    for dataset in encoded_datasets
		    for story, conta, conta, _ in dataset    )
		A__        =   min(__a    ,     model.config.n_positions    )  # Max size of input for the pre-trained model

		# Prepare inputs tensors and dataloaders
		A__        =   pre_process_datasets(__a    ,     __a    ,     __a    ,     *__a    )
		A__      ,			A__        =   tensor_datasets[0], tensor_datasets[1]

		A__        =   TensorDataset(*__a    )
		A__        =   RandomSampler(__a    )
		A__        =   DataLoader(__a    ,     sampler=__a    ,     batch_size=args.train_batch_size    )

		A__        =   TensorDataset(*__a    )
		A__        =   SequentialSampler(__a    )
		A__        =   DataLoader(__a    ,     sampler=__a    ,     batch_size=args.eval_batch_size    )

		# Prepare optimizer
		if args.do_train:
				if args.max_steps > 0:
						A__        =   args.max_steps
						A__        =   args.max_steps // (len(__a    ) // args.gradient_accumulation_steps) + 1
				else:
						A__        =   len(__a    ) // args.gradient_accumulation_steps * args.num_train_epochs

				A__        =   list(model.named_parameters()    )
				A__        =   ["""bias""", """LayerNorm.bias""", """LayerNorm.weight"""]
				A__        =   [
				    {
				        """params""": [p for n, p in param_optimizer if not any(nd in n for nd in no_decay    )],
				        """weight_decay""": args.weight_decay,
				    },
				    {"""params""": [p for n, p in param_optimizer if any(nd in n for nd in no_decay    )], """weight_decay""": 0.0},
				]
				A__        =   AdamW(__a    ,     lr=args.learning_rate    ,     eps=args.adam_epsilon    )
				A__        =   get_linear_schedule_with_warmup(
				    __a    ,     num_warmup_steps=args.warmup_steps    ,     num_training_steps=__a    )

		if args.do_train:
				A__      ,			A__      ,			A__        =   0, 0, None
				model.train()
				for _ in trange(int(args.num_train_epochs    )    ,     desc="""Epoch"""    ):
						A__        =   0
						A__        =   0
						A__        =   tqdm(__a    ,     desc="""Training"""    )
						for step, batch in enumerate(__a    ):
								A__        =   tuple(t.to(__a    ) for t in batch    )
								A__      ,			A__      ,			A__      ,			A__        =   batch
								A__        =   model(__a    ,     mc_token_ids=__a    ,     lm_labels=__a    ,     mc_labels=__a    )
								A__        =   args.lm_coef * losses[0] + losses[1]
								loss.backward()
								optimizer.step()
								scheduler.step()
								optimizer.zero_grad()
								tr_loss += loss.item()
								A__        =   (
								    loss.item() if exp_average_loss is None else 0.7 * exp_average_loss + 0.3 * loss.item()
								)
								nb_tr_steps += 1
								A__        =   """Training loss: {:.2e} lr: {:.2e}""".format(__a    ,     scheduler.get_lr()[0]    )

    # Save a trained model
		if args.do_train:
				# Save a trained model, configuration and tokenizer
				A__        =   model.module if hasattr(__a    ,     """module"""    ) else model  # Only save the model itself

				# If we save using the predefined names, we can load using `from_pretrained`
				A__        =   os.path.join(args.output_dir    ,     __a    )
				A__        =   os.path.join(args.output_dir    ,     __a    )

				torch.save(model_to_save.state_dict()    ,     __a    )
				model_to_save.config.to_json_file(__a    )
				tokenizer.save_vocabulary(args.output_dir    )

				# Load a trained model and vocabulary that you have fine-tuned
				A__        =   OpenAIGPTDoubleHeadsModel.from_pretrained(args.output_dir    )
				A__        =   OpenAIGPTTokenizer.from_pretrained(args.output_dir    )
				model.to(__a    )

		if args.do_eval:
				model.eval()
				A__      ,			A__        =   0, 0
				A__      ,			A__        =   0, 0
				for batch in tqdm(__a    ,     desc="""Evaluating"""    ):
						A__        =   tuple(t.to(__a    ) for t in batch    )
						A__      ,			A__      ,			A__      ,			A__        =   batch
						with torch.no_grad():
								A__      ,			A__      ,			A__      ,			A__        =   model(
								    __a    ,     mc_token_ids=__a    ,     lm_labels=__a    ,     mc_labels=__a    )

						A__        =   mc_logits.detach().cpu().numpy()
						A__        =   mc_labels.to("""cpu"""    ).numpy()
						A__        =   accuracy(__a    ,     __a    )

						eval_loss += mc_loss.mean().item()
						eval_accuracy += tmp_eval_accuracy

						nb_eval_examples += input_ids.size(0    )
						nb_eval_steps += 1

				A__        =   eval_loss / nb_eval_steps
				A__        =   eval_accuracy / nb_eval_examples
				A__        =   tr_loss / nb_tr_steps if args.do_train else None
				A__        =   {"""eval_loss""": eval_loss, """eval_accuracy""": eval_accuracy, """train_loss""": train_loss}

				A__        =   os.path.join(args.output_dir    ,     """eval_results.txt"""    )
				with open(__a    ,     """w"""    ) as writer:
						logger.info("""***** Eval results *****"""    )
						for key in sorted(result.keys()    ):
								logger.info("""  %s = %s"""    ,     __a    ,     str(result[key]    )    )
								writer.write("""%s = %s\n""" % (key, str(result[key]    ))    )


if __name__ == "__main__":
					main()



