LCOV - code coverage report
Current view: top level - legacy/ascend950/service/collective/alg/coll_alg_factory/alg_template/ins_alg_template - ins_temp_all_reduce_mesh_2D_two_shot.cc (source / functions) Coverage Total Hit
Test: coverage.info Lines: 0.0 % 179 0
Test Date: 2026-07-28 12:11:00 Functions: 0.0 % 11 0

            Line data    Source code
       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              : #include "log.h"
      12              : #include "alg_data_trans_wrapper.h"
      13              : #include "ins_temp_all_reduce_mesh_2D_two_shot.h"
      14              : 
      15              : namespace Hccl {
      16            0 : InsTempAllReduceMesh2DTwoShot::InsTempAllReduceMesh2DTwoShot(const RankId virtualRank, const u32 tempRankSize,
      17            0 :     const std::vector<std::vector<RankId>> &tempVTopo, const std::map<RankId, u32> &tempVirtRankMap)
      18            0 :     : InsAlgTemplateBase(virtualRank, tempRankSize, tempVTopo, tempVirtRankMap)
      19              : {
      20            0 :     HCCL_INFO("[InsTempAllReduceMesh2DTwoShot] Init.");
      21            0 : }
      22              : 
      23            0 : InsTempAllReduceMesh2DTwoShot::~InsTempAllReduceMesh2DTwoShot()
      24              : {
      25            0 :     HCCL_INFO("[InsTempAllReduceMesh2DTwoShot] exit.");
      26            0 : }
      27              : 
      28              : /*
      29              :  * Desc: 计算资源需求
      30              :  * return: tempResReq: 资源计算结果存储,包括notify信息,links信息等
      31              :  * return: HcclResult
      32              :  */
      33            0 : HcclResult InsTempAllReduceMesh2DTwoShot::CalcRes(AlgTempResReq &tempResReq)
      34              : {
      35              :     // 1D Mesh 需要的 que Num 为 ranksize
      36            0 :     tempResReq.queNum = tempVTopo_[0].size() + tempVTopo_[1].size();
      37            0 :     tempResReq.streamNum = tempResReq.queNum;
      38            0 :     tempResReq.queNotifys = CreateQueNotifiesRequest(tempResReq.queNum, 1, 0, tempVTopo_[0].size());
      39              : 
      40            0 :     QId centerQ = 0;
      41            0 :     tempResReq.localWaitGroupCntNotify.emplace_back(centerQ, 0);
      42            0 :     tempResReq.localBcastPostCntNotify.emplace_back(centerQ, 0);
      43              : 
      44              :     uint32_t myAlgRank;
      45            0 :     for (u32 dim = 0; dim < tempVTopo_.size(); dim++) {
      46            0 :         CHK_RET(GetAlgRank(myRank_, tempVTopo_[dim], myAlgRank));
      47            0 :         for (u32 queIdx = 0; queIdx < tempVTopo_[dim].size() - 1; queIdx++) {
      48            0 :             u32    neighborAlgRank = (myAlgRank + 1 + queIdx) % (tempVTopo_[dim].size());
      49            0 :             RankId neighborRank    = tempVTopo_[dim][neighborAlgRank];
      50            0 :             HCCL_INFO("InsTempAllReduceMesh2DTwoShot::CalcRes Rank[%d], Dim[%u], NeighborRank[%d].", myRank_,
      51              :                        dim, neighborRank);
      52              :             // LinkNum
      53            0 :             tempResReq.links[neighborRank] = 1;
      54              :         }
      55              :     }
      56            0 :     HCCL_INFO("InsTempAllReduceMesh2DTwoShot::CalcRes done");
      57            0 :     return HcclResult::HCCL_SUCCESS;
      58              : }
      59              : 
      60            0 : std::vector<std::tuple<QId, QId, u32>> InsTempAllReduceMesh2DTwoShot::CreateQueNotifiesRequest(
      61              :     u32 queueNum, u32 pairNum, QId masterIdX, QId masterIdY) const
      62              : {
      63            0 :     std::vector<std::tuple<QId, QId, u32>> notifyRequests;
      64            0 :     HCCL_DEBUG("[Create][MasterSlaveQueNotifiesRequest] queueNum[%u], pairNum[%u]", queueNum, pairNum);
      65            0 :     if (queueNum == 0 || pairNum == 0) {
      66            0 :         HCCL_INFO("[Create][MasterSlaveQueNotifiesRequest] queueNum or pairNum is zero, "
      67              :                   "return empty notifyRequests");
      68            0 :         return notifyRequests;
      69              :     };
      70              : 
      71            0 :     u32 slaveNum = queueNum - 1;
      72            0 :     HCCL_INFO("[Create][MasterSlaveQueNotifiesRequest] slavNum[%u]", slaveNum);
      73            0 :     if (slaveNum < 1 || pairNum < 1) {
      74            0 :         return notifyRequests;
      75              :     }
      76              : 
      77            0 :     notifyRequests.reserve((slaveNum + queueNum - masterIdY - 1) * pairNum);
      78              :     // masterX(master0)跟所有的stream有同步关系
      79            0 :     for (QId q = 0; q < queueNum; q++) {
      80            0 :         if (q == masterIdX) {
      81            0 :             continue;
      82              :         }
      83            0 :         for (u32 i = 0; i < pairNum; i++) {
      84            0 :             notifyRequests.emplace_back(std::make_tuple(masterIdX, q, i));
      85            0 :             notifyRequests.emplace_back(std::make_tuple(q, masterIdX, i));
      86              :         }
      87              :     }
      88              : 
      89            0 :     for (QId q = masterIdY + 1; q < queueNum; q++) {
      90            0 :         for (u32 i = 0; i < pairNum; i++) {
      91            0 :             notifyRequests.emplace_back(std::make_tuple(masterIdY, q, i));
      92            0 :             notifyRequests.emplace_back(std::make_tuple(q, masterIdY, i));
      93              :         }
      94              :     }
      95            0 :     return notifyRequests;
      96            0 : }
      97              : 
      98              : /*
      99              :  * Desc: 返回当前rank能处理的数据量和scratch buffer之间的比例关系
     100              :  * param: input: 输入数据位置
     101              :  * param: output 输出数据位置
     102              :  */
     103            0 : u32 InsTempAllReduceMesh2DTwoShot::CalcScratchMultiple(BufferType input, BufferType output) const
     104              : {
     105              :     // scratchbuffer如果能够通过ranksize规整:buffersize%2*ranksize_M*ranksize_N=0,则这里只需要返回1,最大化利用scratchbuffer
     106              : 
     107              :     // 否则返回2,使用1倍的buffer保证能缓存所有其他rank发来的数据,理论上数据被分成2*M*N块,假设有尾块,每个数据块的大小(inputcount/(2*M*N)+1)
     108              :     // 总共需要(inputCount/(2*M*N)+1)*(2*M*N)=[inputCount+2*M*N]*elembytesize,
     109              :     // 而预留的buffersize=inputcount*elembytesize,
     110              :     // 所以如果2*M*N>inputcount(预留)则缓存buffer仍然不够,但是由于最小的scratchbuffersize=1M,而2*M*N很难大于1M/2(一半数据一半缓存),
     111              :     // 所以返回2的时候要判断(2*M*N+inputcount)*elembytesize>scratchbufferSize(即预留缓存buffer+输入数据占用的buffer);2*M*N是常量,只需要增加buffersize解决
     112              :     (void)input;
     113              :     (void)output;
     114            0 :     u32 multiple = 2;
     115            0 :     return multiple;
     116              : }
     117              : 
     118            0 : HcclResult InsTempAllReduceMesh2DTwoShot::BuildSlice(
     119              :     const std::vector<RankId>& rankInfo, const u64 dataSize, const u64 chunkSize, RankSliceInfo &sliceInfoVec) const
     120              : {
     121            0 :     std::vector<SliceInfo> tmp(1);
     122            0 :     sliceInfoVec.resize(rankInfo.size(), tmp);
     123              : 
     124            0 :     u64 accumOff = 0;
     125            0 :     for (u32 rankIdx = 0; rankIdx < rankInfo.size(); rankIdx++) {
     126            0 :         u64 currChunkSize = ((dataSize - accumOff) > chunkSize) ? chunkSize : (dataSize - accumOff);
     127            0 :         SliceInfo slice = {accumOff, currChunkSize};
     128            0 :         sliceInfoVec[rankIdx][0]=slice;
     129            0 :         accumOff += currChunkSize;
     130              :     }
     131            0 :     return HcclResult::HCCL_SUCCESS;
     132            0 : }
     133              : 
     134              : /*
     135              :  * Desc: GenExtIns 算子执行入口
     136              :  * param: tempAlgParams: slice和stride信息
     137              :  * param: tempFuncs: 辅助信息包括userIn/OutSlices, opMode等标记信息
     138              :  * param: tempLinks: 当前rank通信链接信息
     139              :  * param: tempInsQues: 通信队列
     140              :  * return: HcclResult
     141              :  */
     142            0 : HcclResult InsTempAllReduceMesh2DTwoShot::GenExtIns(const TempFuncs &tempFuncs, const TemplateDataParams &tempAlgParams,
     143              :                                                     const ResLinks &tempLinks, std::vector<InsQuePtr> &tempInsQues)
     144              : {
     145            0 :     InitInnerParams(tempFuncs, tempAlgParams, tempLinks, tempInsQues);
     146              :     // step1: reducescatter, X轴划分为M个块,每个块大小N*chunksize, Y轴划分为N个块,每个块M*chucksize
     147            0 :     CHK_RET(PreSyncQues(tempInsQues, 0));
     148            0 :     CHK_RET(PostSyncQues(tempInsQues, 0));
     149            0 :     SubStageArgs bufferInfo = {tempAlgParams.buffInfo.inBuffType, tempAlgParams.buffInfo.scratBuffType,
     150            0 :                                tempAlgParams.buffInfo.inBuffBaseOff, 0};
     151            0 :     CHK_RET(RunReduceScatter(bufferInfo, XsliceInfoVec_, tempLinks, XtempInsQues_, tempVTopo_[0]));
     152              : 
     153            0 :     if (YDataSize_ != 0) {
     154            0 :         bufferInfo = {tempAlgParams.buffInfo.inBuffType, tempAlgParams.buffInfo.scratBuffType,
     155            0 :                       tempAlgParams.buffInfo.inBuffBaseOff + M_ * N_ * chunkSize_, M_ * N_ * chunkSize_};
     156            0 :         CHK_RET(RunReduceScatter(bufferInfo, YsliceInfoVec_, tempLinks, YtempInsQues_, tempVTopo_[1]));
     157              :     }
     158              : 
     159              :     // step2: 换轴reducescatter
     160            0 :     CHK_RET(PreSyncQues(tempInsQues, 0));
     161            0 :     CHK_RET(PostSyncQues(tempInsQues, 0));
     162            0 :     if (XDataSizeS2_ != 0) {
     163            0 :         bufferInfo = {tempAlgParams.buffInfo.scratBuffType, tempAlgParams.buffInfo.scratBuffType, M_ * N_ * chunkSize_,
     164            0 :                       M_ * N_ * chunkSize_ + M_ * chunkSize_};
     165            0 :         CHK_RET(RunReduceScatter(bufferInfo, XsliceInfoVecS2_, tempLinks, XtempInsQues_, tempVTopo_[0]));
     166              :     }
     167            0 :     if (YDataSizeS2_ != 0) {
     168            0 :         bufferInfo = {tempAlgParams.buffInfo.scratBuffType, tempAlgParams.buffInfo.scratBuffType, 0, N_ * chunkSize_};
     169            0 :         CHK_RET(RunReduceScatter(bufferInfo, YsliceInfoVecS2_, tempLinks, YtempInsQues_, tempVTopo_[1]));
     170              :     }
     171              : 
     172              :     // step3: allgather
     173            0 :     CHK_RET(PreSyncQues(tempInsQues, 0));
     174            0 :     CHK_RET(PostSyncQues(tempInsQues, 0));
     175            0 :     if (XDataSizeS2_ != 0) {  // X轴allgather
     176            0 :         bufferInfo = {tempAlgParams.buffInfo.scratBuffType, tempAlgParams.buffInfo.scratBuffType,
     177            0 :                       M_ * N_ * chunkSize_ + M_ * chunkSize_, M_ * N_ * chunkSize_};
     178            0 :         CHK_RET(RunAllgather(bufferInfo, XsliceInfoVecS2_, tempLinks, XtempInsQues_, tempVTopo_[0]));
     179              :     }
     180            0 :     if (YDataSizeS2_ != 0) {  // Y轴allgather
     181            0 :         bufferInfo = {tempAlgParams.buffInfo.scratBuffType, tempAlgParams.buffInfo.scratBuffType, N_ * chunkSize_, 0};
     182            0 :         CHK_RET(RunAllgather(bufferInfo, YsliceInfoVecS2_, tempLinks, YtempInsQues_, tempVTopo_[1]));
     183              :     }
     184              : 
     185              :     // step4: 换轴allgather
     186            0 :     CHK_RET(PreSyncQues(tempInsQues, 0));
     187            0 :     CHK_RET(PostSyncQues(tempInsQues, 0));
     188            0 :     bufferInfo = {tempAlgParams.buffInfo.scratBuffType, tempAlgParams.buffInfo.outBuffType, 0,
     189            0 :                   tempAlgParams.buffInfo.outBuffBaseOff};
     190            0 :     CHK_RET(RunAllgather(bufferInfo, XsliceInfoVec_, tempLinks, XtempInsQues_, tempVTopo_[0]));
     191            0 :     if (YDataSize_ != 0) {
     192            0 :         bufferInfo = {tempAlgParams.buffInfo.scratBuffType, tempAlgParams.buffInfo.outBuffType, M_ * N_ * chunkSize_,
     193            0 :                       tempAlgParams.buffInfo.outBuffBaseOff + M_ * N_ * chunkSize_};
     194            0 :         CHK_RET(RunAllgather(bufferInfo, YsliceInfoVec_, tempLinks, YtempInsQues_, tempVTopo_[1]));
     195              :     }
     196            0 :     CHK_RET(PreSyncQues(tempInsQues, 0));
     197            0 :     CHK_RET(PostSyncQues(tempInsQues, 0));
     198            0 :     return HcclResult::HCCL_SUCCESS;
     199              : }
     200              : 
     201            0 : HcclResult InsTempAllReduceMesh2DTwoShot::InitInnerParams(const TempFuncs &tempFuncs,
     202              :     const TemplateDataParams &tempAlgParams, const ResLinks &tempLinks, std::vector<InsQuePtr> &tempInsQues)
     203              : {
     204              :     (void)tempLinks;
     205            0 :     HCCL_INFO("[InsTempAllReduceMesh2DTwoShot] start.");
     206            0 :     opMode_ = tempFuncs.opMode;
     207            0 :     enableCounterNotify_ = tempFuncs.enableCounterNotify;
     208              : 
     209            0 :     M_ = tempVTopo_[0].size();
     210            0 :     N_ = tempVTopo_[1].size();
     211            0 :     queNum_ = M_ + N_;
     212            0 :     CHK_PRT_RET(queNum_ != tempInsQues.size(),
     213              :         HCCL_ERROR("[InsTempAllReduceMesh2DTwoShot] Rank [%d], queNum_:[%u], tempInsQues size:[%u],requiredQue Error.",
     214              :             myRank_,
     215              :             queNum_,
     216              :             tempInsQues.size()),
     217              :         HcclResult::HCCL_E_INTERNAL);
     218              : 
     219            0 :     u32 dataSizePerVolume = DataTypeSizeGet(dataType_);  // 均分为2MN块
     220            0 :     u32 times = 2;
     221            0 :     chunkSize_ = RoundUp(tempAlgParams.sliceSize, (M_ * N_ * times * dataSizePerVolume)) * dataSizePerVolume;
     222            0 :     CHK_PRT_RET((chunkSize_ * M_ * N_ * times) > tempAlgParams.buffInfo.scratchBuffSize,
     223              :         HCCL_ERROR("[InsTempAllReduceMesh2DTwoShot]Rank [%d], Input size:[%llu], BfSize:[%llu]  Insufficient buffer!",
     224              :             myRank_,
     225              :             tempAlgParams.sliceSize,
     226              :             tempAlgParams.buffInfo.scratchBuffSize),
     227              :         HcclResult::HCCL_E_INTERNAL);
     228            0 :     XtempInsQues_ = std::vector<InsQuePtr>(tempInsQues.begin(), tempInsQues.begin() + M_);
     229            0 :     YtempInsQues_ = std::vector<InsQuePtr>(tempInsQues.begin() + M_, tempInsQues.end());
     230              : 
     231            0 :     CHK_RET(GetAlgRank(myRank_, tempVTopo_[0], XAlgrankId_));
     232            0 :     CHK_RET(GetAlgRank(myRank_, tempVTopo_[1], YAlgrankId_));
     233              : 
     234              :     // for step1
     235            0 :     XDataSize_ = tempAlgParams.sliceSize >= M_ * N_ * chunkSize_ ? M_ * N_ * chunkSize_ : tempAlgParams.sliceSize;
     236            0 :     YDataSize_ = tempAlgParams.sliceSize - XDataSize_;
     237            0 :     BuildSlice(tempVTopo_[0], XDataSize_, N_ * chunkSize_, XsliceInfoVec_);
     238            0 :     BuildSlice(tempVTopo_[1], YDataSize_, M_ * chunkSize_, YsliceInfoVec_);
     239              : 
     240              :     // for step2
     241            0 :     YDataSizeS2_ = XsliceInfoVec_[XAlgrankId_][0].size;  // 找到前一步切分时本rank负责的数据块大小
     242            0 :     XDataSizeS2_ = YsliceInfoVec_[YAlgrankId_][0].size;
     243            0 :     BuildSlice(tempVTopo_[1], YDataSizeS2_, chunkSize_, YsliceInfoVecS2_);
     244            0 :     BuildSlice(tempVTopo_[0], XDataSizeS2_, chunkSize_, XsliceInfoVecS2_);
     245            0 :     return HcclResult::HCCL_SUCCESS;
     246              : }
     247              : 
     248              : /*
     249              :  * Desc: 2D Mesh twoshot AllReduce: Scatter+reduce
     250              :  * param: sliceInfoVec: 每个rank的数据切片信息
     251              :  * param: tempLinks: 当前rank通信链接信息
     252              :  * param: tempInsQues: 通信队列
     253              :  * param: tempFuncs: 辅助信息包括userIn/OutSlices, opMode等标记信息
     254              :  * return: HcclResult
     255              :  */
     256            0 : HcclResult InsTempAllReduceMesh2DTwoShot::RunReduceScatter(SubStageArgs& subparams, 
     257              :     const RankSliceInfo &sliceInfoVec, const ResLinks &tempLinks, std::vector<InsQuePtr> &tempInsQues,
     258              :     const std::vector<RankId> &rankInfo) const
     259              : {
     260              :     u32 myAlgrankId;
     261            0 :     CHK_RET(GetAlgRank(myRank_, rankInfo, myAlgrankId));
     262              : 
     263            0 :     CHK_RET(PreSyncQues(tempInsQues, 0));
     264              :     // scatter
     265            0 :     for (u32 rankId = 0; rankId < rankInfo.size(); rankId++) {// 写模式
     266              :         DataSlice ssrcSlice = DataSlice(subparams.inType, 
     267            0 :         sliceInfoVec[rankId][0].offset + subparams.inbaseOff, sliceInfoVec[rankId][0].size);
     268              :         DataSlice sdestSlice = DataSlice(subparams.outType, 
     269            0 :         myAlgrankId * sliceInfoVec[rankId][0].size + subparams.outbaesOff, sliceInfoVec[rankId][0].size);
     270            0 :         if (rankId == myAlgrankId) {
     271            0 :             if (sliceInfoVec[rankId][0].size != 0) {// 如果是本地rank,直接拷贝到scratch对应位置
     272            0 :                 CHK_PRT_RET(LocalCopy(tempInsQues[rankId], ssrcSlice, sdestSlice),
     273              :                     HCCL_ERROR(
     274              :                         "[InsTempAllReduceMesh2DTwoShot][RunReduceScatter] RunAllReduce scatter LocalCopy failed"),
     275              :                     HcclResult::HCCL_E_INTERNAL);
     276              :             }
     277              :         } else {
     278            0 :             const std::vector<LinkData> &linkSendRecv = tempLinks.at(rankInfo[rankId]);
     279              :             // 发送, 未过滤size为0的情况
     280            0 :             std::vector<DataSlice> sendSrcSlices{ssrcSlice};
     281            0 :             std::vector<DataSlice> sendDestSlices{sdestSlice};
     282              :             // 接收,未过滤size为0的情况
     283              :             DataSlice rsrcSlice = DataSlice(subparams.inType, 
     284            0 :             sliceInfoVec[myAlgrankId][0].offset + subparams.inbaseOff, sliceInfoVec[myAlgrankId][0].size);
     285              :             DataSlice rdestSlice = DataSlice(subparams.outType, 
     286            0 :             rankId * sliceInfoVec[myAlgrankId][0].size + subparams.outbaesOff, sliceInfoVec[myAlgrankId][0].size);
     287            0 :             std::vector<DataSlice> recvSrcSlices{rsrcSlice};
     288            0 :             std::vector<DataSlice> recvDestSlices{rdestSlice};
     289            0 :             TxRxLinks sendRecvLinks(linkSendRecv[0], linkSendRecv[0]);
     290            0 :             TxRxSlicesList sendRecvSlicesList({sendSrcSlices, sendDestSlices}, {recvSrcSlices, recvDestSlices});
     291            0 :             SendRecvInfo sendRecvInfo(sendRecvLinks, sendRecvSlicesList);
     292            0 :             CHK_PRT_RET(SendRecv(sendRecvInfo, tempInsQues[rankId], 0, true, DmaMode::PUT),
     293              :                 HCCL_ERROR("[InsTempAllReduceMesh2DTwoShot][RunReduceScatter] RunAllReduce scatter failed"),
     294              :                 HcclResult::HCCL_E_INTERNAL);
     295            0 :         }
     296              :     }
     297            0 :     CHK_RET(PostSyncQues(tempInsQues, 0)); // 从流同步,等待所有并发的send和copy完成
     298            0 :     if (sliceInfoVec[myAlgrankId][0].size != 0) {  // local reduce, 计算结果都放在最开始的位置
     299            0 :         DataSlice ldestSlice = DataSlice(subparams.outType, subparams.outbaesOff, sliceInfoVec[myAlgrankId][0].size);
     300            0 :         for (u32 rankId = 1; rankId < rankInfo.size(); rankId++) {
     301              :             DataSlice lsrcSlice = DataSlice(subparams.outType, 
     302            0 :             rankId * sliceInfoVec[myAlgrankId][0].size + subparams.outbaesOff, sliceInfoVec[myAlgrankId][0].size);
     303              :             // 所有reduce操作在同一个insque中才能保序;
     304            0 :             CHK_PRT_RET(LocalReduce(tempInsQues[0], lsrcSlice, ldestSlice, dataType_, redOp_),
     305              :                 HCCL_ERROR("[InsTempAllReduceMesh2DTwoShot]LocalReduce failed"), HcclResult::HCCL_E_INTERNAL);
     306              :         }
     307              :     }
     308            0 :     return HcclResult::HCCL_SUCCESS;
     309              : }
     310              : 
     311              : /*
     312              :  * Desc: 2D Mesh twoshot AllReduce: Allgather
     313              :  * param: sliceInfoVec: 每个rank的数据切片信息
     314              :  * param: tempLinks: 当前rank通信链接信息
     315              :  * param: tempInsQues: 通信队列
     316              :  * param: tempFuncs: 辅助信息包括userIn/OutSlices, opMode等标记信息
     317              :  * return: HcclResult
     318              :  */
     319            0 : HcclResult InsTempAllReduceMesh2DTwoShot::RunAllgather(SubStageArgs& subparams, 
     320              :     const RankSliceInfo &sliceInfoVec, const ResLinks &tempLinks, std::vector<InsQuePtr> &tempInsQues,
     321              :     const std::vector<RankId> &rankInfo) const
     322              : {
     323              :     u32 myAlgrankId;
     324            0 :     CHK_RET(GetAlgRank(myRank_, rankInfo, myAlgrankId));
     325              : 
     326              :     // sync:前同步
     327            0 :     CHK_RET(PreSyncQues(tempInsQues, 0));
     328              : 
     329              :     // allgather
     330            0 :     for (u32 rankId = 0; rankId < rankInfo.size(); rankId++) {
     331            0 :         DataSlice rsrcSlice = DataSlice(subparams.inType, subparams.inbaseOff, sliceInfoVec[rankId][0].size);
     332              :         DataSlice rdestSlice = DataSlice(
     333            0 :             subparams.outType, sliceInfoVec[rankId][0].offset + subparams.outbaesOff, sliceInfoVec[rankId][0].size);
     334            0 :         if (u32(myAlgrankId) == rankId) {
     335            0 :             if (sliceInfoVec[rankId][0].size != 0) {
     336              :                 // copy本端计算的结果到user output
     337            0 :                 CHK_PRT_RET(LocalCopy(tempInsQues[rankId], rsrcSlice, rdestSlice),
     338              :                     HCCL_ERROR("[InsTempAllReduceMesh2DTwoShot][RunAllgather] RunAllReduce AllGather "
     339              :                                "LocalCopy failed"),
     340              :                     HcclResult::HCCL_E_INTERNAL);
     341              :             }
     342              :         } else {
     343            0 :             const std::vector<LinkData> &linkSendRecv = tempLinks.at(rankInfo[rankId]);
     344              :             // 接收, 未过滤size为0的情况
     345            0 :             std::vector<DataSlice> recvSrcSlices{rsrcSlice};
     346            0 :             std::vector<DataSlice> recvDestSlices{rdestSlice};
     347              : 
     348              :             // 发送,未过滤size为0的情况
     349            0 :             DataSlice ssrcSlice = DataSlice(subparams.inType, subparams.inbaseOff, sliceInfoVec[myAlgrankId][0].size);
     350              :             DataSlice sdestSlice = DataSlice(subparams.outType,
     351            0 :                 sliceInfoVec[myAlgrankId][0].offset + subparams.outbaesOff,
     352            0 :                 sliceInfoVec[myAlgrankId][0].size);
     353            0 :             std::vector<DataSlice> sendSrcSlices{ssrcSlice};
     354            0 :             std::vector<DataSlice> sendDestSlices{sdestSlice};
     355              : 
     356            0 :             TxRxLinks sendRecvLinks(linkSendRecv[0], linkSendRecv[0]);
     357            0 :             TxRxSlicesList sendRecvSlicesList({sendSrcSlices, sendDestSlices}, {recvSrcSlices, recvDestSlices});
     358              : 
     359            0 :             SendRecvInfo sendRecvInfo(sendRecvLinks, sendRecvSlicesList);
     360            0 :             CHK_PRT_RET(SendRecv(sendRecvInfo, tempInsQues[rankId], 0, true, DmaMode::GET),
     361              :                 HCCL_ERROR("[InsTempAllReduceMesh2DTwoShot][RunAllgather] RunAllReduce AllGather failed"),
     362              :                 HcclResult::HCCL_E_INTERNAL);
     363            0 :         }
     364              :     }
     365            0 :     CHK_RET(PostSyncQues(tempInsQues, 0));
     366            0 :     return HcclResult::HCCL_SUCCESS;
     367              : }
     368              : 
     369              : }  // namespace Hccl
        

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