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 "calc_nb_transport_req.h"
      12              : #include "calc_ahc_template_register.h"
      13              : 
      14              : namespace hccl {
      15            0 : CalcNBTransportReq::CalcNBTransportReq(
      16            0 :     std::vector<std::vector<u32>>& subCommPlaneVector, std::vector<bool>& isBridgeVector, u32 userRank)
      17            0 :     : CalcTransportReqBase(subCommPlaneVector, isBridgeVector, userRank)
      18            0 : {}
      19              : 
      20            0 : CalcNBTransportReq::~CalcNBTransportReq() {}
      21              : 
      22            0 : HcclResult CalcNBTransportReq::CalcTransportRequest(
      23              :     const std::string& tag, TransportMemType inputMemType, TransportMemType outputMemType,
      24              :     const CommParaInfo& commParaInfo, std::vector<SingleSubCommTransport>& commTransport, u32 subUserRankRoot)
      25              : {
      26              :     (void)subUserRankRoot;
      27            0 :     u32 ringSize = subCommPlaneVector_.size();
      28            0 :     commTransport.resize(ringSize);
      29              : 
      30            0 :     for (u32 ringIndex = 0; ringIndex < ringSize; ringIndex++) {
      31            0 :         if (commParaInfo.commPlane == COMM_LEVEL1 && !isBridgeVector_[ringIndex]) {
      32            0 :             continue; // 跳出本次循环
      33              :         }
      34              : 
      35            0 :         u32 rank = GetSubCollectiveRank(subCommPlaneVector_[ringIndex]);
      36            0 :         if (rank == INVALID_VALUE_RANKID) {
      37            0 :             continue;
      38              :         }
      39              : 
      40            0 :         u32 rankSize = subCommPlaneVector_[ringIndex].size();
      41            0 :         SingleSubCommTransport& subCommTransport = commTransport[ringIndex];
      42            0 :         subCommTransport.transportRequests.resize(rankSize);
      43              :         // 只有一张卡时不需要建链
      44            0 :         if (rankSize == HCCL_RANK_SIZE_EQ_ONE) {
      45            0 :             HCCL_INFO("comm base needn't to create links, rankSize_[%u].", rankSize);
      46            0 :             return HCCL_SUCCESS;
      47              :         }
      48              : 
      49            0 :         for (u32 delta = 1; delta < rankSize; delta <<= 1) {
      50            0 :             const u32 targetRankPos = static_cast<u32>(rank + delta) % rankSize;
      51            0 :             TransportRequest& tmpTransport = subCommTransport.transportRequests[targetRankPos];
      52            0 :             tmpTransport.isValid = true;
      53            0 :             tmpTransport.localUserRank = userRank_;
      54            0 :             tmpTransport.remoteUserRank = subCommPlaneVector_[ringIndex][targetRankPos];
      55            0 :             tmpTransport.inputMemType = inputMemType;
      56            0 :             tmpTransport.outputMemType = outputMemType;
      57            0 :             HCCL_INFO(
      58              :                 "[CalcNBTransportReq][CalcTransportRequest] param_.tag[%s], ringIndex[%u], localRank[%u], "
      59              :                 "remoteRank[%u], inputMemType[%d], outputMemType[%d]",
      60              :                 tag.c_str(), ringIndex, userRank_, tmpTransport.remoteUserRank, inputMemType, outputMemType);
      61              : 
      62            0 :             const u32 targetRankNeg = static_cast<u32>(rank + rankSize - delta) % rankSize;
      63            0 :             TransportRequest& tmpTransportNeg = subCommTransport.transportRequests[targetRankNeg];
      64            0 :             tmpTransportNeg.isValid = true;
      65            0 :             tmpTransportNeg.localUserRank = userRank_;
      66            0 :             tmpTransportNeg.remoteUserRank = subCommPlaneVector_[ringIndex][targetRankNeg];
      67            0 :             tmpTransportNeg.inputMemType = inputMemType;
      68            0 :             tmpTransportNeg.outputMemType = outputMemType;
      69            0 :             HCCL_INFO(
      70              :                 "[CalcNBTransportReq][CalcTransportRequest] param_.tag[%s], ringIndex[%u], localRank[%u], "
      71              :                 "remoteRank[%u], inputMemType[%d], outputMemType[%d]",
      72              :                 tag.c_str(), ringIndex, userRank_, tmpTransportNeg.remoteUserRank, inputMemType, outputMemType);
      73              :         }
      74            0 :         subCommTransport.enableUseOneDoorbell = true;
      75              :     }
      76            0 :     return HCCL_SUCCESS;
      77              : }
      78              : 
      79            0 : HcclResult CalcNBTransportReq::CalcDstRanks(const u32 rank, const std::vector<u32> commGroups, std::set<u32>& dstRanks)
      80              : {
      81            0 :     CHK_PRT_RET(
      82              :         rank >= commGroups.size(),
      83              :         HCCL_ERROR(
      84              :             "[CalcNBTransportReq][CalcDstRanks] rank [%u] exceed commGroups Size [%u] error", rank, commGroups.size()),
      85              :         HCCL_E_INTERNAL);
      86              : 
      87            0 :     for (auto i = 0; static_cast<u32>(1 << i) < commGroups.size(); ++i) {
      88              :         // 正方向第2^i个节点的rank号
      89            0 :         const u32 targetRankPos = static_cast<u32>(rank + (1 << i)) % commGroups.size();
      90            0 :         dstRanks.insert(commGroups[targetRankPos]);
      91              : 
      92              :         // 反方向第2^i个节点的rank号
      93            0 :         const u32 targetRankNeg = static_cast<u32>(rank + commGroups.size() - (1 << i)) % commGroups.size();
      94              : 
      95            0 :         HCCL_DEBUG(
      96              :             "[CalcNBTransportReq][CalcDstRanks] local rank[%u], remote rank[%u]", commGroups[rank],
      97              :             commGroups[targetRankNeg]);
      98              : 
      99            0 :         dstRanks.insert(commGroups[targetRankNeg]);
     100              :     }
     101              : 
     102            0 :     return HCCL_SUCCESS;
     103              : }
     104              : 
     105              : REGISTER_AHC_COMM_CALC_FUNC(AHCTemplateType::AHC_TEMPLATE_NB, CalcNBTransportReq, CalcNBTransportReq::CalcDstRanks);
     106              : } // namespace hccl