old_contents: #   Copyright (c) 2018 PaddlePaddle Authors. 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.
  
  from __future__ import print_function
  import unittest
  from test_dist_base import TestDistBase
  import os
  
  import os
  flag_name = os.path.splitext(__file__)[0]
  
  
  class TestDistSeResneXtNCCL(TestDistBase):
      def _setup_config(self):
          self._sync_mode = True
          self._use_reader_alloc = False
          self._nccl2_mode = True
  
      @unittest.skip(reason="Skip unstable ci")
      def test_dist_train(self):
          import paddle.fluid as fluid
          if fluid.core.is_compiled_with_cuda():
              self.check_with_place(
                  "dist_se_resnext.py",
                  delta=1e-5,
                  check_error_log=True,
                  log_name=flag_name)
  
  
  class TestDistSeResneXtNCCLMP(TestDistBase):
      def _setup_config(self):
          self._sync_mode = True
          self._use_reader_alloc = False
          self._nccl2_mode = True
          self._mp_mode = True
  
      @unittest.skip(reason="Skip unstable ci")
      def test_dist_train(self):
          import paddle.fluid as fluid
          if fluid.core.is_compiled_with_cuda():
              self.check_with_place(
                  "dist_se_resnext.py",
                  delta=1e-5,
                  check_error_log=True,
                  need_envs={"NCCL_P2P_DISABLE": "1"},
                  log_name=flag_name)
  
  
  if __name__ == "__main__":
      unittest.main()
  
new_contents: #   Copyright (c) 2018 PaddlePaddle Authors. 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.
  
  from __future__ import print_function
  import unittest
  from test_dist_base import TestDistBase
  import os
  
  import os
  flag_name = os.path.splitext(__file__)[0]
  
  
  class TestDistSeResneXtNCCL(TestDistBase):
      def _setup_config(self):
          self._sync_mode = True
          self._use_reader_alloc = False
          self._nccl2_mode = True
  
      def test_dist_train(self):
          import paddle.fluid as fluid
          if fluid.core.is_compiled_with_cuda():
              self.check_with_place(
                  "dist_se_resnext.py",
                  delta=1e-5,
                  check_error_log=True,
                  log_name=flag_name)
  
  
  class TestDistSeResneXtNCCLMP(TestDistBase):
      def _setup_config(self):
          self._sync_mode = True
          self._use_reader_alloc = False
          self._nccl2_mode = True
          self._mp_mode = True
  
      def test_dist_train(self):
          import paddle.fluid as fluid
          if fluid.core.is_compiled_with_cuda():
              self.check_with_place(
                  "dist_se_resnext.py",
                  delta=1e-5,
                  check_error_log=True,
                  need_envs={"NCCL_P2P_DISABLE": "1"},
                  log_name=flag_name)
  
  
  if __name__ == "__main__":
      unittest.main()
  
subject: enable test_dist_se_resnext_nccl.py, test=develop (#22067)