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       1              : /**
       2              :  * Copyright (c) 2025 Huawei Technologies Co., Ltd.
       3              :  * This program is free software, you can redistribute it and/or modify it under the terms and conditions of
       4              :  * CANN Open Software License Agreement Version 2.0 (the "License").
       5              :  * Please refer to the License for details. You may not use this file except in compliance with the License.
       6              :  * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
       7              :  * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
       8              :  * See LICENSE in the root of the software repository for the full text of the License.
       9              :  */
      10              : 
      11              : #ifndef INS_TEMP_REDUCE_SCATTER_MESH_2D_H
      12              : #define INS_TEMP_REDUCE_SCATTER_MESH_2D_H
      13              : 
      14              : #include "string_util.h"
      15              : #include "ins_temp_all_gather_nhr.h"
      16              : #include "ins_alg_template_base.h"
      17              : #include "executor_utils.h"
      18              : 
      19              : #define DATASLICE_ONE 1
      20              : 
      21              : namespace Hccl {
      22              : 
      23              : constexpr u32 PARALLEL_SIZE = 2;
      24              : class InsTempReduceScatterMesh2D : public InsAlgTemplateBase {
      25              : public:
      26              :     explicit InsTempReduceScatterMesh2D(const RankId virtualRank, const u32 tempRankSize,
      27              :                                         const std::vector<std::vector<RankId>> &tempVTopo,
      28              :                                         const std::map<RankId, u32>            &tempVirtRankMap);
      29              :     ~InsTempReduceScatterMesh2D() override;
      30              : 
      31            0 :     std::string Describe() const override
      32              :     {
      33            0 :         return StringFormat("Template of reduce scatter Mesh2D with tempRankSize [%u].", tempRankSize_);
      34              :     }
      35              :     u64 CalcScratchMultiple(const BufferType &inBuffType, const BufferType &outBuffType);
      36              :     HcclResult CalcRes(AlgTempResReq &tempResReq) override;
      37              :     HcclResult GenExtIns(const TempFuncs &tempFuncs, TemplateDataParams &tempAlgParams, const ResLinks &tempLinks,
      38              :                          std::vector<InsQuePtr> &tempInsQues);
      39              : private:
      40              :     HcclResult CalcResLinksMesh2D(const u32 linkNumBtwPeers, AlgTempResReq &tempResReq);
      41              :     HcclResult PreCopy(const TemplateDataParams &tempAlgParams, std::vector<InsQuePtr> &tempInsQues);
      42              :     HcclResult SendRecvProcess(const ResLinks &tempLinks, std::vector<std::vector<DataSlice>> allSliceVec,
      43              :                                std::vector<InsQuePtr> &tempInsQues, u32 remoteRank, u32 queIdx) const;
      44              :     HcclResult RunFirstLevel(const ResLinks &tempLinks, std::vector<InsQuePtr> &tempInsQues, const TemplateDataParams &tempAlgParams);
      45              :     HcclResult RunFirstReduce(std::vector<InsQuePtr> &tempInsQues, const TemplateDataParams &tempAlgParams);
      46              :     HcclResult RunSecondLevel(const ResLinks &tempLinks, std::vector<InsQuePtr> &tempInsQues, const TemplateDataParams &tempAlgParams);
      47              :     HcclResult RunSecondReduce(std::vector<InsQuePtr> &tempInsQues, const TemplateDataParams &tempAlgParams);
      48              :     RankId GetRankFromMap(const u32 rankIdx);
      49              :     u32      xQueNum_ = 0;
      50              :     u32      yQueNum_ = 0;
      51              :     u32      xRankSize_ = 0;
      52              :     u32      yRankSize_ = 0;
      53              :     u32      xRankId_ = 0;
      54              :     u32      yRankId_ = 0;
      55              :     u64      halfDataSize_ = 0;
      56              : };
      57              : 
      58              : } // namespace Hccl
      59              : 
      60              : #endif //INS_TEMP_REDUCE_SCATTER_MESH_2D_H