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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_MESH_2D
      12              : #define INS_TEMP_REDUCE_MESH_2D
      13              : 
      14              : #include "string_util.h"
      15              : #include "executor_utils.h"
      16              : #include "ins_alg_template_base.h"
      17              : 
      18              : namespace Hccl {
      19              : 
      20              : // 通信方向常量
      21              : constexpr u32 AXIS_X = 0;
      22              : constexpr u32 AXIS_Y = 1;
      23              : constexpr u32 AXIS_NUM = 2;
      24              : 
      25              : // 数据分片常量（数据分为A/B两部分并行处理）
      26              : constexpr u32 SLICE_A = 0;
      27              : constexpr u32 SLICE_B = 1;
      28              : constexpr u32 SLICE_NUM = 2;
      29              : 
      30              : class InsTempReduceMesh2D : public InsAlgTemplateBase {
      31              : public:
      32              :     explicit InsTempReduceMesh2D(
      33              :         const RankId virtualRank, const u32 tempRankSize, const std::vector<std::vector<RankId>>& tempVTopo,
      34              :         const std::map<RankId, u32>& tempVirtRankMap);
      35              :     ~InsTempReduceMesh2D() override;
      36              : 
      37            0 :     std::string Describe() const override
      38              :     {
      39            0 :         return StringFormat("Template of reduce Mesh2D with tempRankSize [%u].", tempRankSize_);
      40              :     }
      41              : 
      42              :     HcclResult CalcRes(AlgTempResReq& tempResReq) override;
      43              :     u32 CalcScratchMultiple(BufferType inBuffType, BufferType outBuffType);
      44              : 
      45              :     HcclResult GenExtIns(
      46              :         const TempFuncs& tempFuncs, const TemplateDataParams& templateDataParams, const ResLinks& tempLinks,
      47              :         std::vector<InsQuePtr>& tempInsQues);
      48              : 
      49              : private:
      50              :     HcclResult CalcParams(const TemplateDataParams& templateDataParams);
      51              :     HcclResult SplitInsQues(
      52              :         std::vector<InsQuePtr>& tempInsQues, std::vector<InsQuePtr>& ctrlTempInsQues,
      53              :         std::vector<InsQuePtr>& xTempInsQues, std::vector<InsQuePtr>& yTempInsQues);
      54              :     std::vector<std::tuple<QId, QId, u32>> CreateNotifiesRequest(u32 xQueueNum, u32 yQueueNum) const;
      55              :     HcclResult CalcResLinksConcurrMesh(
      56              :         const RankId myRank, const u32 tempRankSize, const std::vector<std::vector<RankId>>& tempVTopo,
      57              :         const u32 linkNumBtwPeers, AlgTempResReq& tempResReq) const;
      58              : 
      59              :     HcclResult
      60              :     LocalCopyFromInputToOutput(const TemplateDataParams& templateDataParams, std::vector<InsQuePtr>& tempInsQues) const;
      61              :     HcclResult GatherFromInput(
      62              :         const u32 slice, const u32 axis, const ResLinks& tempLinks, std::vector<InsQuePtr>& axisTempInsQues);
      63              :     HcclResult GatherFromScratch(
      64              :         const u32 slice, const u32 axis, const ResLinks& tempLinks, std::vector<InsQuePtr>& axisTempInsQues);
      65              :     HcclResult
      66              :     SendFromInput(const u32 slice, const u32 axis, const ResLinks& tempLinks, std::vector<InsQuePtr>& axisTempInsQues);
      67              :     HcclResult SendFromScratch(
      68              :         const u32 slice, const u32 axis, const ResLinks& tempLinks, std::vector<InsQuePtr>& axisTempInsQues);
      69              :     HcclResult ReduceToScratch(const u32 slice, const u32 axis, std::vector<InsQuePtr>& axisTempInsQues);
      70              :     HcclResult ReduceToOutput(const u32 slice, const u32 axis, std::vector<InsQuePtr>& axisTempInsQues);
      71              : 
      72              :     u32 axisRankSize_[AXIS_NUM]{0}; // 轴向RankSize大小
      73              :     u32 axisRank_[AXIS_NUM]{0};     // 当前rank在轴向上的序号
      74              :     u32 axisRoot_[AXIS_NUM]{0};     // root在轴向上的序号
      75              : 
      76              :     u64 sliceSize_[SLICE_NUM]{0}; // 数据分片大小（双轴并行通信）
      77              :     u64 sliceInputBaseOffset_[SLICE_NUM]{0};
      78              :     u64 sliceScratchBaseOffset_[SLICE_NUM]{0};
      79              :     u64 sliceOutputBaseOffset_[SLICE_NUM]{0};
      80              : };
      81              : 
      82              : } // namespace Hccl
      83              : 
      84              : #endif // INS_TEMP_REDUCE_MESH_2D