





"""simple docstring"""





import unittest
from functools import partial

import torch

from accelerate import Accelerator, debug_launcher
from accelerate.state import AcceleratorState, GradientState
from accelerate.test_utils import require_cpu, require_huggingface_suite
from accelerate.utils import GradientAccumulationPlugin


def    a__       (       _SCREAMING_SNAKE_CASE=2	,						_SCREAMING_SNAKE_CASE=True	,						_SCREAMING_SNAKE_CASE=False     ):




		"""simple docstring"""


		UpperCamelCase =						Accelerator(step_scheduler_with_optimizer=_SCREAMING_SNAKE_CASE	,						split_batches=_SCREAMING_SNAKE_CASE     )
		UpperCamelCase =						torch.nn.Linear(2	,						4     )
		UpperCamelCase =						torch.optim.AdamW(model.parameters()	,						lr=1.0     )
		UpperCamelCase =						torch.optim.lr_scheduler.OneCycleLR(_SCREAMING_SNAKE_CASE	,						max_lr=0.01	,						steps_per_epoch=2	,						epochs=1     )
		UpperCamelCase ,					UpperCamelCase ,					UpperCamelCase =						accelerator.prepare(_SCREAMING_SNAKE_CASE	,						_SCREAMING_SNAKE_CASE	,						_SCREAMING_SNAKE_CASE     )

		# Optimizer has stepped
		scheduler.step()
		if step_scheduler_with_optimizer or (num_processes == 1):
				assert (
				    scheduler.scheduler.last_epoch == num_processes
				), F"Last Epoch ({scheduler.scheduler.last_epoch}) != Num Processes ({num_processes})"
		else:
				assert (
				    scheduler.scheduler.last_epoch != num_processes
				), F"Last Epoch ({scheduler.scheduler.last_epoch}) == Num Processes ({num_processes})"


def    a__       (       _SCREAMING_SNAKE_CASE=2	,						_SCREAMING_SNAKE_CASE=True	,						_SCREAMING_SNAKE_CASE=False     ):




		"""simple docstring"""


		UpperCamelCase =						Accelerator(step_scheduler_with_optimizer=_SCREAMING_SNAKE_CASE	,						split_batches=_SCREAMING_SNAKE_CASE     )
		UpperCamelCase =						torch.nn.Linear(2	,						4     )
		UpperCamelCase =						torch.optim.AdamW(model.parameters()	,						lr=1.0     )
		UpperCamelCase =						torch.optim.lr_scheduler.LambdaLR(_SCREAMING_SNAKE_CASE	,						lr_lambda=lambda _SCREAMING_SNAKE_CASE     : 1 - n / 10     )
		UpperCamelCase ,					UpperCamelCase ,					UpperCamelCase =						accelerator.prepare(_SCREAMING_SNAKE_CASE	,						_SCREAMING_SNAKE_CASE	,						_SCREAMING_SNAKE_CASE     )

		# Optimizer has stepped
		UpperCamelCase =						False
		scheduler.step()
		UpperCamelCase =						1 - (num_processes if (step_scheduler_with_optimizer and not split_batches) else 1) / 10
		assert (
		    scheduler.get_last_lr()[0] == expected_lr
		), F"Wrong lr found at first step, expected {expected_lr}, got {scheduler.get_last_lr()[0]}"

		# Optimizer has not stepped
		UpperCamelCase =						True
		scheduler.step()
		if not step_scheduler_with_optimizer:
				UpperCamelCase =						1 - 2 / 10
		assert (
		    scheduler.get_last_lr()[0] == expected_lr
		), F"Wrong lr found at second step, expected {expected_lr}, got {scheduler.get_last_lr()[0]}"


def    a__       (       _SCREAMING_SNAKE_CASE = 2     ):




		"""simple docstring"""


		from transformers import get_linear_schedule_with_warmup

		UpperCamelCase =						[1, 2, 4]
		for num_steps in steps:
				UpperCamelCase =						GradientAccumulationPlugin(num_steps=_SCREAMING_SNAKE_CASE	,						adjust_scheduler=num_steps > 1     )
				UpperCamelCase =						Accelerator(gradient_accumulation_plugin=_SCREAMING_SNAKE_CASE     )
				UpperCamelCase =						torch.nn.Linear(2	,						4     )
				UpperCamelCase =						torch.optim.AdamW(model.parameters()	,						lr=10.0     )
				UpperCamelCase =						get_linear_schedule_with_warmup(optimizer=_SCREAMING_SNAKE_CASE	,						num_warmup_steps=0	,						num_training_steps=20     )

				UpperCamelCase ,					UpperCamelCase ,					UpperCamelCase =						accelerator.prepare(_SCREAMING_SNAKE_CASE	,						_SCREAMING_SNAKE_CASE	,						_SCREAMING_SNAKE_CASE     )

				for i in range(10 * num_steps     ):
						with accelerator.accumulate(_SCREAMING_SNAKE_CASE     ):
								optimizer.step()
								scheduler.step()

						if i == (10 * num_steps - 2):
								assert (
								    scheduler.get_last_lr()[0] != 0
								), F"Wrong lr found at second-to-last step, expected non-zero, got {scheduler.get_last_lr()[0]}. num_steps: {num_steps}"
				assert (
				    scheduler.get_last_lr()[0] == 0
				), F"Wrong lr found at last step, expected 0, got {scheduler.get_last_lr()[0]}"
				GradientState._reset_state()






@require_cpu
class 							_lowerCamelCase   (							unittest.TestCase			):


						def      snake_case_ (self		)			-> Tuple:
								debug_launcher(partial(__a ,				num_processes=1		) ,				num_processes=1		)
								debug_launcher(partial(__a ,				num_processes=1 ,				split_batches=__a		) ,				num_processes=1		)


						def      snake_case_ (self		)			-> Optional[Any]:
								debug_launcher(partial(__a ,				num_processes=1		) ,				num_processes=1		)
								debug_launcher(partial(__a ,				num_processes=1 ,				split_batches=__a		) ,				num_processes=1		)


						def      snake_case_ (self		)			-> Union[str, Any]:
								debug_launcher(partial(__a ,				num_processes=1 ,				step_scheduler_with_optimizer=__a		) ,				num_processes=1		)


						def      snake_case_ (self		)			-> Optional[int]:
								debug_launcher(partial(__a ,				num_processes=1 ,				step_scheduler_with_optimizer=__a		) ,				num_processes=1		)


						def      snake_case_ (self		)			-> Optional[Any]:
								AcceleratorState._reset_state(__a		)
								debug_launcher(__a		)
								debug_launcher(partial(__a ,				num_processes=1 ,				split_batches=__a		) ,				num_processes=1		)


						def      snake_case_ (self		)			-> List[Any]:
								AcceleratorState._reset_state(__a		)
								debug_launcher(__a		)
								debug_launcher(partial(__a ,				num_processes=1 ,				split_batches=__a		) ,				num_processes=1		)


						def      snake_case_ (self		)			-> List[str]:
								AcceleratorState._reset_state(__a		)
								debug_launcher(partial(__a ,				step_scheduler_with_optimizer=__a		)		)


						def      snake_case_ (self		)			-> Dict:
								AcceleratorState._reset_state(__a		)
								debug_launcher(partial(__a ,				step_scheduler_with_optimizer=__a		)		)




						@require_huggingface_suite
						def      snake_case_ (self		)			-> Optional[int]:
								AcceleratorState._reset_state(__a		)
								debug_launcher(partial(__a ,				num_processes=1		)		)
								debug_launcher(__a		)













"""simple docstring"""





from ..utils import DummyObject, requires_backends





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Union[str, Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Any:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Dict:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Optional[Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Tuple:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Union[str, Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Optional[int]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Optional[Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Union[str, Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> int:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> List[Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Tuple:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Dict:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Any:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Optional[Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Dict:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Any:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Dict:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> List[str]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Tuple:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Tuple:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> int:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Optional[Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> int:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Tuple:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Tuple:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> str:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Optional[int]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Optional[Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Union[str, Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> int:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Any:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Dict:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Optional[int]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Optional[int]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Union[str, Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> int:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> List[Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Dict:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Dict:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> List[Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Optional[int]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Tuple:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> List[Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> List[str]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> str:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> int:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Dict:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> List[Any]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> List[str]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> int:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Optional[int]:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> int:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> str:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> str:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> int:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Dict:
								requires_backends(self ,				["tokenizers"]		)





class 							_lowerCamelCase   (							metaclass=_lowercase			):
						UpperCAmelCase_			=      ["tokenizers"]


						def __init__(self ,				*__a ,				**__a		)			-> Dict:
								requires_backends(self ,				["tokenizers"]		)






