text: /**
   * Copyright 2021 Huawei Technologies Co., Ltd
   *
   * 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.
   */
  
  #ifndef MINDSPORE_CCSRC_RUNTIME_HARDWARE_CPU_MS_COLLECTIVE_COMM_LIB_H_
  #define MINDSPORE_CCSRC_RUNTIME_HARDWARE_CPU_MS_COLLECTIVE_COMM_LIB_H_
  
  #include <memory>
  #include <vector>
  #include <string>
  #include "runtime/hardware/collective/collective_communication_lib.h"
  #include "runtime/hardware/cpu/ms_communication_group.h"
  
  namespace mindspore {
  namespace device {
  namespace cpu {
  // The collective communication library for MindSpore self developed communication framework.
  class MsCollectiveCommLib : public CollectiveCommunicationLib {
   public:
    static MsCollectiveCommLib &GetInstance() {
      static MsCollectiveCommLib instance;
      return instance;
    }
  
    bool Initialize(uint32_t global_rank = UINT32_MAX, uint32_t global_rank_size = UINT32_MAX) override;
    bool Finalize() override;
  
    bool CreateCommunicationGroup(const std::string &group_name, const std::vector<uint32_t> &group_ranks) override;
  
   private:
    MsCollectiveCommLib() {}
    ~MsCollectiveCommLib() override = default;
  };
  }  // namespace cpu
  }  // namespace device
  }  // namespace mindspore
  #endif  // MINDSPORE_CCSRC_RUNTIME_HARDWARE_CPU_MS_COLLECTIVE_COMM_LIB_H_
  