"""simple docstring"""






class 					_A		:

      def __init__(		self						,			__lowerCAmelCase						,			__lowerCAmelCase		):







            """simple docstring"""



            lowercase								=      name
            lowercase								=      val

      def __str__(		self		):







            """simple docstring"""



            return f'{self.__class__.__name__}({self.name}, {self.val})'







      def __lt__(		self						,			__lowerCAmelCase		):







            """simple docstring"""



            return self.val < other.val






class 					_A		:

      def __init__(		self						,			__lowerCAmelCase		):







            """simple docstring"""



            lowercase								=      {}
            lowercase								=      {}
            lowercase								=      self.build_heap(__lowerCAmelCase		)

      def __getitem__(		self						,			__lowerCAmelCase		):







            """simple docstring"""



            return self.get_value(__lowerCAmelCase		)

      def 							A__			(		self						,			__lowerCAmelCase		):







            """simple docstring"""



            return (idx - 1) // 2

      def 							A__			(		self						,			__lowerCAmelCase		):







            """simple docstring"""



            return idx * 2 + 1

      def 							A__			(		self						,			__lowerCAmelCase		):







            """simple docstring"""



            return idx * 2 + 2

      def 							A__			(		self						,			__lowerCAmelCase		):







            """simple docstring"""



            return self.heap_dict[key]

      def 							A__			(		self						,			__lowerCAmelCase		):







            """simple docstring"""



            lowercase								=      len(__lowerCAmelCase		) - 1
            lowercase								=      self.get_parent_idx(__lowerCAmelCase		)

            for idx, i in enumerate(__lowerCAmelCase		):
                  lowercase								=      idx
                  lowercase								=      i.val

            for i in range(__lowerCAmelCase						,			-1						,			-1		):
                  self.sift_down(__lowerCAmelCase						,			__lowerCAmelCase		)
            return array

      def 							A__			(		self						,			__lowerCAmelCase						,			__lowerCAmelCase		):







            """simple docstring"""



            while True:
                  lowercase								=      self.get_left_child_idx(__lowerCAmelCase		)  # noqa: E741
                  lowercase								=      self.get_right_child_idx(__lowerCAmelCase		)

                  lowercase								=      idx
                  if l < len(__lowerCAmelCase		) and array[l] < array[idx]:
                        lowercase								=      l
                  if r < len(__lowerCAmelCase		) and array[r] < array[smallest]:
                        lowercase								=      r

                  if smallest != idx:
                        lowercase				,				lowercase								=      array[smallest], array[idx]
                        (
                            (
                            lowercase
                        )				,				(
                            lowercase
                        )				,				
                        )								=      (
                            self.idx_of_element[array[smallest]],
                            self.idx_of_element[array[idx]],
                        )
                        lowercase								=      smallest
                  else:
                        break

      def 							A__			(		self						,			__lowerCAmelCase		):







            """simple docstring"""



            lowercase								=      self.get_parent_idx(__lowerCAmelCase		)
            while p >= 0 and self.heap[p] > self.heap[idx]:
                  lowercase				,				lowercase								=      self.heap[idx], self.heap[p]
                  lowercase				,				lowercase								=      (
                      self.idx_of_element[self.heap[idx]],
                      self.idx_of_element[self.heap[p]],
                  )
                  lowercase								=      p
                  lowercase								=      self.get_parent_idx(__lowerCAmelCase		)

      def 							A__			(		self		):







            """simple docstring"""



            return self.heap[0]

      def 							A__			(		self		):







            """simple docstring"""



            lowercase				,				lowercase								=      self.heap[-1], self.heap[0]
            lowercase				,				lowercase								=      (
                self.idx_of_element[self.heap[-1]],
                self.idx_of_element[self.heap[0]],
            )

            lowercase								=      self.heap.pop()
            del self.idx_of_element[x]
            self.sift_down(0						,			self.heap		)
            return x

      def 							A__			(		self						,			__lowerCAmelCase		):







            """simple docstring"""



            self.heap.append(__lowerCAmelCase		)
            lowercase								=      len(self.heap		) - 1
            lowercase								=      node.val
            self.sift_up(len(self.heap		) - 1		)

      def 							A__			(		self		):







            """simple docstring"""



            return len(self.heap		) == 0







      def 							A__			(		self						,			__lowerCAmelCase						,			__lowerCAmelCase		):







            """simple docstring"""



            assert (
                self.heap[self.idx_of_element[node]].val > new_value
            ), "newValue must be less that current value"
            lowercase								=      new_value
            lowercase								=      new_value
            self.sift_up(self.idx_of_element[node]		)






__lowerCAmelCase       :			int   	=Node("""R""", -1)
__lowerCAmelCase       :			Optional[Any]   	=Node("""B""", 6)
__lowerCAmelCase       :			Dict   	=Node("""A""", 3)
__lowerCAmelCase       :			List[str]   	=Node("""X""", 1)
__lowerCAmelCase       :			int   	=Node("""E""", 4)

# Use one of these two ways to generate Min-Heap

# Generating Min-Heap from array
__lowerCAmelCase       :			Union[str, Any]   	=MinHeap([r, b, a, x, e])

# Generating Min-Heap by Insert method
# myMinHeap.insert(a)
# myMinHeap.insert(b)
# myMinHeap.insert(x)
# myMinHeap.insert(r)
# myMinHeap.insert(e)

# Before
print("""Min Heap - before decrease key""")
for i in my_min_heap.heap:
       print(i)

print("""Min Heap - After decrease key of node [B -> -17]""")
my_min_heap.decrease_key(b, -1_7)

# After
for i in my_min_heap.heap:
       print(i)

if __name__ == "__main__":
       import doctest

       doctest.testmod()




"""simple docstring"""






import ast
import os
import re
import shutil
import tempfile
import unittest
from unittest import mock

import torch

from accelerate.test_utils.examples import compare_against_test
from accelerate.test_utils.testing import TempDirTestCase, require_trackers, run_command, slow
from accelerate.utils import write_basic_config


# DataLoaders built from `test_samples/MRPC` for quick testing
# Should mock `{script_name}.get_dataloaders` via:
# @mock.patch("{script_name}.get_dataloaders", mocked_dataloaders)

__lowerCAmelCase       :			List[str]   	=[
    """cross_validation.py""",
    """gradient_accumulation.py""",
    """local_sgd.py""",
    """multi_process_metrics.py""",
    """memory.py""",
    """automatic_gradient_accumulation.py""",
    """fsdp_with_peak_mem_tracking.py""",
    """deepspeed_with_config_support.py""",
    """megatron_lm_gpt_pretraining.py""",
]





class 					_A		(			unittest.TestCase      ):

      def 							A__			(		self						,			__lowerCAmelCase						,			__lowerCAmelCase						,			__lowerCAmelCase = None						,			__lowerCAmelCase = None		):







            """simple docstring"""



            lowercase								=      None
            lowercase								=      os.path.abspath(os.path.join("""examples"""						,			"""by_feature"""		)		)
            lowercase								=      os.path.abspath("""examples"""		)
            for item in os.listdir(__lowerCAmelCase		):
                  if item not in EXCLUDE_EXAMPLES:
                        lowercase								=      os.path.join(__lowerCAmelCase						,			__lowerCAmelCase		)
                        if os.path.isfile(__lowerCAmelCase		) and ".py" in item_path:
                              with self.subTest(
                                  tested_script=__lowerCAmelCase						,			feature_script=__lowerCAmelCase						,			tested_section="""main()""" if parser_only else """training_function()"""						,			):
                                    lowercase								=      compare_against_test(
                                        os.path.join(__lowerCAmelCase						,			__lowerCAmelCase		)						,			__lowerCAmelCase						,			__lowerCAmelCase						,			__lowerCAmelCase		)
                                    lowercase								=      """\n""".join(__lowerCAmelCase		)
                                    if special_strings is not None:
                                          for string in special_strings:
                                                lowercase								=      diff.replace(__lowerCAmelCase						,			""""""		)
                                    self.assertEqual(__lowerCAmelCase						,			""""""		)

      def 							A__			(		self		):







            """simple docstring"""



            self.one_complete_example("""complete_nlp_example.py"""						,			__lowerCAmelCase		)
            self.one_complete_example("""complete_nlp_example.py"""						,			__lowerCAmelCase		)







      def 							A__			(		self		):







            """simple docstring"""



            lowercase								=      os.path.abspath(os.path.join("""examples"""						,			"""cv_example.py"""		)		)
            lowercase								=      [
                """ """ * 16 + """{\n\n""",
                """ """ * 20 + """\"accuracy\": eval_metric[\"accuracy\"],\n\n""",
                """ """ * 20 + """\"f1\": eval_metric[\"f1\"],\n\n""",
                """ """ * 20 + """\"train_loss\": total_loss.item() / len(train_dataloader),\n\n""",
                """ """ * 20 + """\"epoch\": epoch,\n\n""",
                """ """ * 16 + """},\n\n""",
                """ """ * 16 + """step=epoch,\n""",
                """ """ * 12,
                """ """ * 8 + """for step, batch in enumerate(active_dataloader):\n""",
            ]
            self.one_complete_example("""complete_cv_example.py"""						,			__lowerCAmelCase						,			__lowerCAmelCase						,			__lowerCAmelCase		)
            self.one_complete_example("""complete_cv_example.py"""						,			__lowerCAmelCase						,			__lowerCAmelCase						,			__lowerCAmelCase		)






@mock.patch.dict(os.environ    ,       {'TESTING_MOCKED_DATALOADERS': '1'}      )
class 					_A		(			lowerCAmelCase      ):
      snake_case__     :  Any				    =      False

      @classmethod
      def 							A__			(		cls		):







            """simple docstring"""



            super().setUpClass()
            lowercase								=      tempfile.mkdtemp()
            lowercase								=      os.path.join(cls._tmpdir						,			"""default_config.yml"""		)

            write_basic_config(save_location=cls.configPath		)
            lowercase								=      ["""accelerate""", """launch""", """--config_file""", cls.configPath]

      @classmethod
      def 							A__			(		cls		):







            """simple docstring"""



            super().tearDownClass()
            shutil.rmtree(cls._tmpdir		)

      def 							A__			(		self		):







            """simple docstring"""



            lowercase								=      f'\n        examples/by_feature/checkpointing.py\n        --checkpointing_steps epoch\n        --output_dir {self.tmpdir}\n        '.split()
            run_command(self._launch_args + testargs		)
            self.assertTrue(os.path.exists(os.path.join(self.tmpdir						,			"""epoch_0"""		)		)		)

      def 							A__			(		self		):







            """simple docstring"""



            lowercase								=      f'\n        examples/by_feature/checkpointing.py\n        --checkpointing_steps 1\n        --output_dir {self.tmpdir}\n        '.split()
            lowercase								=      run_command(self._launch_args + testargs		)
            self.assertTrue(os.path.exists(os.path.join(self.tmpdir						,			"""step_2"""		)		)		)

      def 							A__			(		self		):







            """simple docstring"""



            lowercase								=      f'\n        examples/by_feature/checkpointing.py\n        --resume_from_checkpoint {os.path.join(self.tmpdir						,			"epoch_0"		)}\n        '.split()
            lowercase								=      run_command(self._launch_args + testargs						,			return_stdout=__lowerCAmelCase		)
            self.assertNotIn("""epoch 0:"""						,			__lowerCAmelCase		)
            self.assertIn("""epoch 1:"""						,			__lowerCAmelCase		)

      def 							A__			(		self		):







            """simple docstring"""



            lowercase								=      f'\n        examples/by_feature/checkpointing.py\n        --resume_from_checkpoint {os.path.join(self.tmpdir						,			"step_2"		)}\n        '.split()
            lowercase								=      run_command(self._launch_args + testargs						,			return_stdout=__lowerCAmelCase		)
            if torch.cuda.is_available():
                  lowercase								=      torch.cuda.device_count()
            else:
                  lowercase								=      1
            if num_processes > 1:
                  self.assertNotIn("""epoch 0:"""						,			__lowerCAmelCase		)
                  self.assertIn("""epoch 1:"""						,			__lowerCAmelCase		)
            else:
                  self.assertIn("""epoch 0:"""						,			__lowerCAmelCase		)
                  self.assertIn("""epoch 1:"""						,			__lowerCAmelCase		)

      @slow
      def 							A__			(		self		):







            """simple docstring"""



            lowercase								=      """
        examples/by_feature/cross_validation.py
        --num_folds 2
        """.split()
            with mock.patch.dict(os.environ						,			{"""TESTING_MOCKED_DATALOADERS""": """0"""}		):
                  lowercase								=      run_command(self._launch_args + testargs						,			return_stdout=__lowerCAmelCase		)
                  lowercase								=      re.findall("""({.+})"""						,			__lowerCAmelCase		)
                  lowercase								=      [r for r in results if """accuracy""" in r][-1]
                  lowercase								=      ast.literal_eval(__lowerCAmelCase		)
                  self.assertGreaterEqual(results["""accuracy"""]						,			0.7_5		)

      def 							A__			(		self		):







            """simple docstring"""



            lowercase								=      ["""examples/by_feature/multi_process_metrics.py"""]
            run_command(self._launch_args + testargs		)

      @require_trackers
      @mock.patch.dict(os.environ						,			{"""WANDB_MODE""": """offline"""}		)
      def 							A__			(		self		):







            """simple docstring"""



            with tempfile.TemporaryDirectory() as tmpdir:
                  lowercase								=      f'\n            examples/by_feature/tracking.py\n            --with_tracking\n            --project_dir {tmpdir}\n            '.split()
                  run_command(self._launch_args + testargs		)
                  self.assertTrue(os.path.exists(os.path.join(__lowerCAmelCase						,			"""tracking"""		)		)		)

      def 							A__			(		self		):







            """simple docstring"""



            lowercase								=      ["""examples/by_feature/gradient_accumulation.py"""]
            run_command(self._launch_args + testargs		)







      def 							A__			(		self		):







            """simple docstring"""



            lowercase								=      ["""examples/by_feature/local_sgd.py"""]
            run_command(self._launch_args + testargs		)



