
'''simple docstring'''







import os
import unittest
from tempfile import TemporaryDirectory

import torch
import torch.nn as nn

from accelerate.utils import (
    OffloadedWeightsLoader,
    extract_submodules_state_dict,
    load_offloaded_weight,
    offload_state_dict,
    offload_weight,
)






class  lowerCAmelCase__   (  nn.Module     ):






					def __init__(   self		):


											"""simple docstring"""





											super().__init__()
											lowercase_	:     Optional[int]													=       nn.Linear(3				,							4		)
											lowercase_	:     Optional[Any]													=       nn.BatchNormad(4		)
											lowercase_	:     Dict													=       nn.Linear(4				,							5		)






					def 	_snake_case    (   self				,							__SCREAMING_SNAKE_CASE		):


											"""simple docstring"""





											return self.lineara(self.batchnorm(self.lineara(__SCREAMING_SNAKE_CASE		)		)		)







class  lowerCAmelCase__   (  unittest.TestCase     ):






					def 	_snake_case    (   self		):


											"""simple docstring"""





											lowercase_	:     List[Any]													=       ModelForTest()
											with TemporaryDirectory() as tmp_dir:
																	offload_state_dict(__SCREAMING_SNAKE_CASE				,							model.state_dict()		)
																	lowercase_	:     List[str]													=       os.path.join(__SCREAMING_SNAKE_CASE				,							'''index.json'''		)
																	self.assertTrue(os.path.isfile(__SCREAMING_SNAKE_CASE		)		)
																	# TODO: add tests on what is inside the index

																	for key in ["linear1.weight", "linear1.bias", "linear2.weight", "linear2.bias"]:
																							lowercase_	:     Any													=       os.path.join(__SCREAMING_SNAKE_CASE				,							F'''{key}.dat'''		)
																							self.assertTrue(os.path.isfile(__SCREAMING_SNAKE_CASE		)		)
																							# TODO: add tests on the fact weights are properly loaded






					def 	_snake_case    (   self		):


											"""simple docstring"""





											lowercase_	:     Tuple													=       [torch.floataa, torch.floataa, torch.bfloataa]

											for dtype in dtypes:
																	lowercase_	:     Optional[int]													=       torch.randn(2				,							3				,							dtype=__SCREAMING_SNAKE_CASE		)
																	with TemporaryDirectory() as tmp_dir:
																							lowercase_	:     Optional[Any]													=       offload_weight(__SCREAMING_SNAKE_CASE				,							'''weight'''				,							__SCREAMING_SNAKE_CASE				,							{}		)
																							lowercase_	:     str													=       os.path.join(__SCREAMING_SNAKE_CASE				,							'''weight.dat'''		)
																							self.assertTrue(os.path.isfile(__SCREAMING_SNAKE_CASE		)		)
																							self.assertDictEqual(__SCREAMING_SNAKE_CASE				,							{'''weight''': {'''shape''': [2, 3], '''dtype''': str(__SCREAMING_SNAKE_CASE		).split('''.'''		)[1]}}		)

																							lowercase_	:     int													=       load_offloaded_weight(__SCREAMING_SNAKE_CASE				,							index['''weight''']		)
																							self.assertTrue(torch.equal(__SCREAMING_SNAKE_CASE				,							__SCREAMING_SNAKE_CASE		)		)






					def 	_snake_case    (   self		):


											"""simple docstring"""





											lowercase_	:     str													=       ModelForTest()
											lowercase_	:     Any													=       model.state_dict()
											lowercase_	:     Dict													=       {k: v for k, v in state_dict.items() if '''linear2''' not in k}
											lowercase_	:     int													=       {k: v for k, v in state_dict.items() if '''linear2''' in k}

											with TemporaryDirectory() as tmp_dir:
																	offload_state_dict(__SCREAMING_SNAKE_CASE				,							__SCREAMING_SNAKE_CASE		)
																	lowercase_	:     Dict													=       OffloadedWeightsLoader(state_dict=__SCREAMING_SNAKE_CASE				,							save_folder=__SCREAMING_SNAKE_CASE		)

																	# Every key is there with the right value
																	self.assertEqual(sorted(__SCREAMING_SNAKE_CASE		)				,							sorted(state_dict.keys()		)		)
																	for key, param in state_dict.items():
																							self.assertTrue(torch.allclose(__SCREAMING_SNAKE_CASE				,							weight_map[key]		)		)

											lowercase_	:     Dict													=       {k: v for k, v in state_dict.items() if '''weight''' in k}
											lowercase_	:     str													=       {k: v for k, v in state_dict.items() if '''weight''' not in k}

											with TemporaryDirectory() as tmp_dir:
																	offload_state_dict(__SCREAMING_SNAKE_CASE				,							__SCREAMING_SNAKE_CASE		)
																	lowercase_	:     Any													=       OffloadedWeightsLoader(state_dict=__SCREAMING_SNAKE_CASE				,							save_folder=__SCREAMING_SNAKE_CASE		)

																	# Every key is there with the right value
																	self.assertEqual(sorted(__SCREAMING_SNAKE_CASE		)				,							sorted(state_dict.keys()		)		)
																	for key, param in state_dict.items():
																							self.assertTrue(torch.allclose(__SCREAMING_SNAKE_CASE				,							weight_map[key]		)		)

											with TemporaryDirectory() as tmp_dir:
																	offload_state_dict(__SCREAMING_SNAKE_CASE				,							__SCREAMING_SNAKE_CASE		)
																	# Duplicates are removed
																	lowercase_	:     Dict													=       OffloadedWeightsLoader(state_dict=__SCREAMING_SNAKE_CASE				,							save_folder=__SCREAMING_SNAKE_CASE		)

																	# Every key is there with the right value
																	self.assertEqual(sorted(__SCREAMING_SNAKE_CASE		)				,							sorted(state_dict.keys()		)		)
																	for key, param in state_dict.items():
																							self.assertTrue(torch.allclose(__SCREAMING_SNAKE_CASE				,							weight_map[key]		)		)






					def 	_snake_case    (   self		):


											"""simple docstring"""





											lowercase_	:     Optional[Any]													=       {'''a.1''': 0, '''a.10''': 1, '''a.2''': 2}
											lowercase_	:     Dict													=       extract_submodules_state_dict(__SCREAMING_SNAKE_CASE				,							['''a.1''', '''a.2''']		)
											self.assertDictEqual(__SCREAMING_SNAKE_CASE				,							{'''a.1''': 0, '''a.2''': 2}		)

											lowercase_	:     Any													=       {'''a.1.a''': 0, '''a.10.a''': 1, '''a.2.a''': 2}
											lowercase_	:     Optional[int]													=       extract_submodules_state_dict(__SCREAMING_SNAKE_CASE				,							['''a.1''', '''a.2''']		)
											self.assertDictEqual(__SCREAMING_SNAKE_CASE				,							{'''a.1.a''': 0, '''a.2.a''': 2}		)









"""simple docstring"""






from __future__ import annotations

from collections.abc import Iterator
from typing import Any






class lowerCAmelCase__	:






			'''simple docstring'''



			def __init__(  self  ,      lowercase  ):
							_lowerCamelCase     :			Any    =    data
							_lowerCamelCase     :			Node | None    =    None






class lowerCAmelCase__	:






			'''simple docstring'''



			def __init__(  self  ):
							_lowerCamelCase     :			str    =    None
							_lowerCamelCase     :			str    =    None
			def __iter__(  self  ):
							_lowerCamelCase     :			List[str]    =    self.head
							while self.head:
											yield node.data
											_lowerCamelCase     :			Optional[int]    =    node.next
											if node == self.head:
															break
			def __len__(  self  ):
							return sum(1 for _ in self  )
			def __repr__(  self  ):
							return "->".join(str(lowercase  ) for item in iter(self  )  )
			def 					A_    (  self  ,      lowercase  ):
							self.insert_nth(len(self  )  ,      lowercase  )
			def 					A_    (  self  ,      lowercase  ):
							self.insert_nth(0  ,      lowercase  )
			def 					A_    (  self  ,      lowercase  ,      lowercase  ):
							if index < 0 or index > len(self  ):
											raise IndexError('list index out of range.'  )
							_lowerCamelCase     :			List[Any]    =    Node(lowercase  )
							if self.head is None:
											_lowerCamelCase     :			str    =    new_node  # first node points itself
											_lowerCamelCase     :			Union[str, Any]    =    new_node
							elif index == 0:  # insert at head
											_lowerCamelCase     :			List[str]    =    self.head
											_lowerCamelCase     :			str    =    new_node
							else:
											_lowerCamelCase     :			Union[str, Any]    =    self.head
											for _ in range(index - 1  ):
															_lowerCamelCase     :			List[Any]    =    temp.next
											_lowerCamelCase     :			Union[str, Any]    =    temp.next
											_lowerCamelCase     :			List[str]    =    new_node
											if index == len(self  ) - 1:  # insert at tail
															_lowerCamelCase     :			Any    =    new_node
			def 					A_    (  self  ):
							return self.delete_nth(0  )
			def 					A_    (  self  ):
							return self.delete_nth(len(self  ) - 1  )
			def 					A_    (  self  ,      lowercase = 0  ):
							if not 0 <= index < len(self  ):
											raise IndexError('list index out of range.'  )
							_lowerCamelCase     :			Any    =    self.head
							if self.head == self.tail:  # just one node
											_lowerCamelCase     :			List[str]    =    None
							elif index == 0:  # delete head node
											_lowerCamelCase     :			List[str]    =    self.tail.next.next
											_lowerCamelCase     :			Optional[int]    =    self.head.next
							else:
											_lowerCamelCase     :			Dict    =    self.head
											for _ in range(index - 1  ):
															_lowerCamelCase     :			List[Any]    =    temp.next
											_lowerCamelCase     :			int    =    temp.next
											_lowerCamelCase     :			Optional[int]    =    temp.next.next
											if index == len(self  ) - 1:  # delete at tail
															_lowerCamelCase     :			List[Any]    =    temp
							return delete_node.data






			def 					A_    (  self  ):
							return len(self  ) == 0







def      _snake_case			(				):
				_lowerCamelCase     :			Union[str, Any]    =    CircularLinkedList()
				assert len(lowercase__		) == 0
				assert circular_linked_list.is_empty() is True
				assert str(lowercase__		) == ""

				try:
								circular_linked_list.delete_front()
								raise AssertionError  # This should not happen
				except IndexError:
								assert True  # This should happen

				try:
								circular_linked_list.delete_tail()
								raise AssertionError  # This should not happen
				except IndexError:
								assert True  # This should happen

				try:
								circular_linked_list.delete_nth(-1		)
								raise AssertionError
				except IndexError:
								assert True

				try:
								circular_linked_list.delete_nth(0		)
								raise AssertionError
				except IndexError:
								assert True

				assert circular_linked_list.is_empty() is True
				for i in range(5		):
								assert len(lowercase__		) == i
								circular_linked_list.insert_nth(lowercase__							,    i + 1		)
				assert str(lowercase__		) == "->".join(str(lowercase__		) for i in range(1							,    6		)		)

				circular_linked_list.insert_tail(6		)
				assert str(lowercase__		) == "->".join(str(lowercase__		) for i in range(1							,    7		)		)
				circular_linked_list.insert_head(0		)
				assert str(lowercase__		) == "->".join(str(lowercase__		) for i in range(0							,    7		)		)

				assert circular_linked_list.delete_front() == 0
				assert circular_linked_list.delete_tail() == 6
				assert str(lowercase__		) == "->".join(str(lowercase__		) for i in range(1							,    6		)		)
				assert circular_linked_list.delete_nth(2		) == 3

				circular_linked_list.insert_nth(2							,    3		)
				assert str(lowercase__		) == "->".join(str(lowercase__		) for i in range(1							,    6		)		)

				assert circular_linked_list.is_empty() is False


if __name__ == "__main__":
			import doctest

			doctest.testmod()