



from __future__ import annotations


class 						lowerCamelCase__			:


						def __init__(			self    :	Dict   ,							_a    :	Union[str, Any]      ):
													a__:							Optional[int]									=vertices
													a__:							Optional[Any]									=[[0] * vertices for _ in range(UpperCAmelCase_      )]


						def 	_lowerCamelCase      (			self    :	int   ,							_a    :	int      ):
													print("Vertex \t Distance from Source"      )
													for vertex in range(self.vertices      ):
																				print(UpperCAmelCase_   ,							"\t\t"   ,							distances_from_source[vertex]      )


						def 	_lowerCamelCase      (			self    :	Union[str, Any]   ,							_a    :	Tuple   ,							_a    :	str      ):
													a__:							List[Any]									=1e7
													a__:							str									=0

													# Search not nearest vertex not in the shortest path tree
													for vertex in range(self.vertices      ):
																				if distances_from_source[vertex] < minimum and visited[vertex] is False:
																											a__:							str									=distances_from_source[vertex]
																											a__:							Union[str, Any]									=vertex
													return min_index







						def 	_lowerCamelCase      (			self    :	Union[str, Any]   ,							_a    :	Optional[int]      ):
													a__:							Dict									=[int(1e7      )] * self.vertices  # distances from the source
													a__:							List[str]									=0
													a__:							Any									=[False] * self.vertices

													for _ in range(self.vertices      ):
																				a__:							List[Any]									=self.minimum_distance(UpperCAmelCase_   ,							UpperCAmelCase_      )
																				a__:							str									=True

																				# Update dist value of the adjacent vertices
																				# of the picked vertex only if the current
																				# distance is greater than new distance and
																				# the vertex in not in the shortest path tree
																				for v in range(self.vertices      ):
																											if (
																											    self.graph[u][v] > 0
																											    and visited[v] is False
																											    and distances[v] > distances[u] + self.graph[u][v]
																											):
																																		a__:							Optional[int]									=distances[u] + self.graph[u][v]

													self.print_solution(UpperCAmelCase_      )


if __name__ == "__main__":
		__UpperCAmelCase    	=  Graph(9)
		__UpperCAmelCase    	=  [
		    [0, 4, 0, 0, 0, 0, 0, 8, 0],
		    [4, 0, 8, 0, 0, 0, 0, 11, 0],
		    [0, 8, 0, 7, 0, 4, 0, 0, 2],
		    [0, 0, 7, 0, 9, 14, 0, 0, 0],
		    [0, 0, 0, 9, 0, 10, 0, 0, 0],
		    [0, 0, 4, 14, 10, 0, 2, 0, 0],
		    [0, 0, 0, 0, 0, 2, 0, 1, 6],
		    [8, 11, 0, 0, 0, 0, 1, 0, 7],
		    [0, 0, 2, 0, 0, 0, 6, 7, 0],
		]
		graph.dijkstra(0)












import os
import pickle
import unittest
from collections import UserDict, namedtuple

import torch

from accelerate.test_utils.testing import require_cuda, require_torch_min_version
from accelerate.test_utils.training import RegressionModel
from accelerate.utils import (
    convert_outputs_to_fpaa,
    extract_model_from_parallel,
    find_device,
    listify,
    patch_environment,
    recursively_apply,
    send_to_device,
)


UpperCAmelCase__    :      List[Any]       					=namedtuple('''ExampleNamedTuple''', '''a b c''')

class    __A  (    unittest.TestCase     ):


				def _snake_case							(		self				):
								lowerCamelCase									=torch.randn(5 ,			2				)
								lowerCamelCase									=torch.device("""cuda"""				) if torch.cuda.is_available() else torch.device("""cpu"""				)

								lowerCamelCase									=send_to_device(UpperCAmelCase_ ,			UpperCAmelCase_				)
								self.assertTrue(torch.equal(resulta.cpu() ,			UpperCAmelCase_				)				)

								lowerCamelCase									=send_to_device((tensor, [tensor, tensor], 1) ,			UpperCAmelCase_				)
								self.assertIsInstance(UpperCAmelCase_ ,			UpperCAmelCase_				)
								self.assertTrue(torch.equal(resulta[0].cpu() ,			UpperCAmelCase_				)				)
								self.assertIsInstance(resulta[1] ,			UpperCAmelCase_				)
								self.assertTrue(torch.equal(resulta[1][0].cpu() ,			UpperCAmelCase_				)				)
								self.assertTrue(torch.equal(resulta[1][1].cpu() ,			UpperCAmelCase_				)				)
								self.assertEqual(resulta[2] ,			1				)

								lowerCamelCase									=send_to_device({"""a""": tensor, """b""": [tensor, tensor], """c""": 1} ,			UpperCAmelCase_				)
								self.assertIsInstance(UpperCAmelCase_ ,			UpperCAmelCase_				)
								self.assertTrue(torch.equal(resulta["""a"""].cpu() ,			UpperCAmelCase_				)				)
								self.assertIsInstance(resulta["""b"""] ,			UpperCAmelCase_				)
								self.assertTrue(torch.equal(resulta["""b"""][0].cpu() ,			UpperCAmelCase_				)				)
								self.assertTrue(torch.equal(resulta["""b"""][1].cpu() ,			UpperCAmelCase_				)				)
								self.assertEqual(resulta["""c"""] ,			1				)

								lowerCamelCase									=send_to_device(ExampleNamedTuple(a=UpperCAmelCase_ ,			b=[tensor, tensor] ,			c=1				) ,			UpperCAmelCase_				)
								self.assertIsInstance(UpperCAmelCase_ ,			UpperCAmelCase_				)
								self.assertTrue(torch.equal(resulta.a.cpu() ,			UpperCAmelCase_				)				)
								self.assertIsInstance(resulta.b ,			UpperCAmelCase_				)
								self.assertTrue(torch.equal(resulta.b[0].cpu() ,			UpperCAmelCase_				)				)
								self.assertTrue(torch.equal(resulta.b[1].cpu() ,			UpperCAmelCase_				)				)
								self.assertEqual(resulta.c ,			1				)

								lowerCamelCase									=send_to_device(UserDict({"""a""": tensor, """b""": [tensor, tensor], """c""": 1}				) ,			UpperCAmelCase_				)
								self.assertIsInstance(UpperCAmelCase_ ,			UpperCAmelCase_				)
								self.assertTrue(torch.equal(resulta["""a"""].cpu() ,			UpperCAmelCase_				)				)
								self.assertIsInstance(resulta["""b"""] ,			UpperCAmelCase_				)
								self.assertTrue(torch.equal(resulta["""b"""][0].cpu() ,			UpperCAmelCase_				)				)
								self.assertTrue(torch.equal(resulta["""b"""][1].cpu() ,			UpperCAmelCase_				)				)
								self.assertEqual(resulta["""c"""] ,			1				)


				def _snake_case							(		self				):
								with self.assertRaises(UpperCAmelCase_				) as cm:
												lowerCamelCase									=recursively_apply(torch.tensor ,			(torch.tensor(1				), 1) ,			error_on_other_type=UpperCAmelCase_				)
								self.assertEqual(
								    str(cm.exception				) ,			"""Unsupported types (<class 'int'>) passed to `tensor`. Only nested list/tuple/dicts of objects that are valid for `is_torch_tensor` should be passed.""" ,			)


				def _snake_case							(		self				):
								lowerCamelCase									=torch.tensor([1, 2, 3, 4, 5]				)
								self.assertEqual(listify(UpperCAmelCase_				) ,			[1, 2, 3, 4, 5]				)

								lowerCamelCase									=torch.tensor([[1, 2, 3, 4, 5], [6, 7, 8, 9, 10]]				)
								self.assertEqual(listify(UpperCAmelCase_				) ,			[[1, 2, 3, 4, 5], [6, 7, 8, 9, 10]]				)

								lowerCamelCase									=torch.tensor([[[1, 2, 3, 4, 5], [6, 7, 8, 9, 10]], [[11, 12, 13, 14, 15], [16, 17, 18, 19, 20]]]				)
								self.assertEqual(
								    listify(UpperCAmelCase_				) ,			[[[1, 2, 3, 4, 5], [6, 7, 8, 9, 10]], [[11, 12, 13, 14, 15], [16, 17, 18, 19, 20]]]				)


				def _snake_case							(		self				):
								with patch_environment(aa=1 ,			BB=2				):
												self.assertEqual(os.environ.get("""AA"""				) ,			"""1"""				)
												self.assertEqual(os.environ.get("""BB"""				) ,			"""2"""				)

								self.assertNotIn("""AA""" ,			os.environ				)
								self.assertNotIn("""BB""" ,			os.environ				)


				def _snake_case							(		self				):
								lowerCamelCase									=RegressionModel()
								lowerCamelCase									=model.forward
								lowerCamelCase									=convert_outputs_to_fpaa(model.forward				)
								lowerCamelCase									=extract_model_from_parallel(UpperCAmelCase_ ,			keep_fpaa_wrapper=UpperCAmelCase_				)
								lowerCamelCase									=pickle.dumps(UpperCAmelCase_				)


				@require_cuda
				def _snake_case							(		self				):
								lowerCamelCase									=RegressionModel()
								lowerCamelCase									=model.forward
								lowerCamelCase									=torch.cuda.amp.autocast(dtype=torch.floataa				)(model.forward				)
								lowerCamelCase									=convert_outputs_to_fpaa(model.forward				)
								lowerCamelCase									=extract_model_from_parallel(UpperCAmelCase_ ,			keep_fpaa_wrapper=UpperCAmelCase_				)
								lowerCamelCase									=pickle.dumps(UpperCAmelCase_				)


				@require_cuda
				@require_torch_min_version(version="""2.0"""				)
				def _snake_case							(		self				):
								lowerCamelCase									=RegressionModel()
								lowerCamelCase									=model.forward
								lowerCamelCase									=torch.cuda.amp.autocast(dtype=torch.floataa				)(model.forward				)
								lowerCamelCase									=convert_outputs_to_fpaa(model.forward				)
								lowerCamelCase									=torch.compile(model.forward ,			backend="""inductor"""				)
								lowerCamelCase									=torch.randn(4 ,			10				).cuda()
								lowerCamelCase									=model(UpperCAmelCase_				)


				def _snake_case							(		self				):
								lowerCamelCase									=RegressionModel()
								# could also do a test with DistributedDataParallel, but difficult to run on CPU or single GPU
								lowerCamelCase									=torch.nn.parallel.DataParallel(UpperCAmelCase_				)
								lowerCamelCase									=extract_model_from_parallel(UpperCAmelCase_				)

								self.assertEqual(UpperCAmelCase_ ,			UpperCAmelCase_				)


				@require_torch_min_version(version="""2.0"""				)
				def _snake_case							(		self				):
								lowerCamelCase									=RegressionModel()
								lowerCamelCase									=torch.compile(UpperCAmelCase_				)

								# could also do a test with DistributedDataParallel, but difficult to run on CPU or single GPU
								lowerCamelCase									=torch.nn.parallel.DataParallel(UpperCAmelCase_				)
								lowerCamelCase									=torch.compile(UpperCAmelCase_				)
								lowerCamelCase									=extract_model_from_parallel(UpperCAmelCase_				)

								self.assertEqual(compiled_model._orig_mod ,			compiled_model_unwrapped._orig_mod				)


				def _snake_case							(		self				):
								self.assertEqual(find_device([1, """a""", torch.tensor([1, 2, 3]				)]				) ,			torch.device("""cpu"""				)				)
								self.assertEqual(find_device({"""a""": 1, """b""": torch.tensor([1, 2, 3]				)}				) ,			torch.device("""cpu"""				)				)
								self.assertIsNone(find_device([1, """a"""]				)				)





