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 "alg_template_register.h"
12 : #include "all_reduce_chunk_mesh.h"
13 :
14 : namespace hccl {
15 2 : AllReduceChunkMesh::AllReduceChunkMesh(const HcclDispatcher dispatcher) : AlgTemplateBase(dispatcher) {}
16 :
17 4 : AllReduceChunkMesh::~AllReduceChunkMesh() {}
18 :
19 2 : HcclResult AllReduceChunkMesh::Prepare(
20 : u64 reduceAttrBitMap, std::vector<Stream>& meshStreams, std::vector<std::shared_ptr<LocalNotify>>& meshSignal,
21 : std::vector<std::shared_ptr<LocalNotify>>& meshSignalAux, u32 interRank, u32 interRankSize, u32 userRank,
22 : HcomCollOpInfo* opInfo)
23 : {
24 2 : reduceAttr_ = reduceAttrBitMap;
25 2 : localRank_ = interRank;
26 2 : localRankSize_ = interRankSize;
27 2 : userRank_ = userRank;
28 2 : meshStreams_ = meshStreams;
29 2 : meshSignal_ = &meshSignal;
30 2 : meshSignalAux_ = &meshSignalAux;
31 2 : opInfo_ = opInfo;
32 2 : return HCCL_SUCCESS;
33 : }
34 0 : HcclResult AllReduceChunkMesh::MainRecordSub()
35 : {
36 0 : for (u32 signalIndex = 0; signalIndex < meshSignalAux_->size(); signalIndex++) {
37 0 : CHK_RET(LocalNotify::Post(stream_, dispatcher_, (*meshSignalAux_)[signalIndex], profilerInput_.stage));
38 : }
39 0 : return HCCL_SUCCESS;
40 : }
41 :
42 0 : HcclResult AllReduceChunkMesh::SubWaitMain()
43 : {
44 0 : for (u32 streamIndex = 0; streamIndex < meshSignalAux_->size(); streamIndex++) {
45 0 : CHK_RET(LocalNotify::Wait(
46 : meshStreams_[streamIndex], dispatcher_, (*meshSignalAux_)[streamIndex], profilerInput_.stage));
47 : }
48 0 : return HCCL_SUCCESS;
49 : }
50 :
51 0 : HcclResult AllReduceChunkMesh::MainWaitSub()
52 : {
53 0 : for (u32 signalIndex = 0; signalIndex < meshSignal_->size(); signalIndex++) {
54 0 : CHK_RET(LocalNotify::Wait(stream_, dispatcher_, (*meshSignal_)[signalIndex], profilerInput_.stage));
55 : }
56 0 : return HCCL_SUCCESS;
57 : }
58 :
59 0 : HcclResult AllReduceChunkMesh::SubRecordMain()
60 : {
61 0 : for (u32 streamIndex = 0; streamIndex < meshSignal_->size(); streamIndex++) {
62 0 : CHK_RET(LocalNotify::Post(
63 : meshStreams_[streamIndex], dispatcher_, (*meshSignal_)[streamIndex], profilerInput_.stage));
64 : }
65 0 : return HCCL_SUCCESS;
66 : }
67 :
68 : // 将数据均分，最小单位是128
69 0 : HcclResult AllReduceChunkMesh::PrepareSlice(u64 dataCount, u32 unitSize, u32 sliceNum, std::vector<Slice>& dataSlice)
70 : {
71 0 : u64 totalSize = dataCount * unitSize;
72 0 : Slice temp;
73 0 : dataSlice.clear();
74 0 : dataSlice.reserve(sliceNum);
75 0 : if (sliceNum == 0) {
76 0 : HCCL_ERROR("[Prepare][SliceData]data slice prepare, sliceNum is 0");
77 0 : return HCCL_E_PARA;
78 : }
79 0 : u64 sizePerSlice = (totalSize + sliceNum - 1) / sliceNum; /* 1是为了向上取整 */
80 0 : sizePerSlice = RoundUpWithDivisor(sizePerSlice, HCCL_MIN_SLICE_ALIGN);
81 0 : u64 residueSize = totalSize;
82 0 : u32 i = 0;
83 0 : while (residueSize > 0) {
84 0 : u64 sliceSize = sizePerSlice < residueSize ? sizePerSlice : residueSize;
85 0 : temp.size = sliceSize;
86 0 : temp.offset = totalSize - residueSize;
87 0 : i++;
88 0 : if (sliceSize <= 0) {
89 0 : HCCL_ERROR("[Prepare][SliceData]data_slice_prepare sliceSize[%llu]", sliceSize);
90 0 : return HCCL_E_PARA;
91 : }
92 0 : residueSize -= sliceSize;
93 0 : dataSlice.push_back(temp);
94 : }
95 0 : while (i < sliceNum) {
96 0 : temp.size = 0;
97 0 : temp.offset = totalSize;
98 0 : i++;
99 0 : dataSlice.push_back(temp);
100 : }
101 0 : return HCCL_SUCCESS;
102 : }
103 :
104 0 : HcclResult AllReduceChunkMesh::PrepareAllreduceSliceData()
105 : {
106 0 : u32 unitSize = SIZE_TABLE[dataType_];
107 0 : HcclResult ret = HCCL_SUCCESS;
108 0 : CHK_RET(PrepareSlice(count_, unitSize, localRankSize_, slices_));
109 0 : for (u32 rank = 0; rank < localRankSize_; rank++) {
110 0 : std::vector<Slice> dataSegsSlice;
111 0 : ret = PrepareSlice(slices_[rank].size / unitSize, unitSize, localRankSize_ - 1, dataSegsSlice);
112 0 : sliceMap[rank] = dataSegsSlice;
113 0 : CHK_PRT_RET(ret != HCCL_SUCCESS, HCCL_ERROR("[AllReduceChunkMesh][PrepareSlice]rank[%u] failed", rank), ret);
114 0 : }
115 0 : return HCCL_SUCCESS;
116 : }
117 :
118 0 : HcclResult AllReduceChunkMesh::RunAsync(const u32 rank, const u32 rankSize, const std::vector<LINK>& links)
119 : {
120 0 : HcclResult ret = HCCL_SUCCESS;
121 0 : CHK_SMART_PTR_NULL(dispatcher_);
122 0 : CHK_PTR_NULL(stream_.ptr());
123 0 : HCCL_INFO(
124 : "AllReduceChunkMesh run: rank[%u] ranksize[%u] inputMem[%p] outputMem[%p] count[%llu]", rank, rankSize,
125 : inputMem_.ptr(), outputMem_.ptr(), count_);
126 :
127 0 : if (links.size() < rankSize) {
128 0 : HCCL_ERROR(
129 : "[AllReduceChunkMesh][RunAsync]rank[%u] linksize[%llu] is less than rankSize[%u]", rank, links.size(),
130 : rankSize);
131 0 : return HCCL_E_INTERNAL;
132 : }
133 :
134 : // 如果ranksize为1, inline reduce和普通跨片reduce操作一致，从input->output
135 0 : if (rankSize == 1) {
136 0 : if (opInfo_->inputAddr != opInfo_->outputAddr) {
137 0 : DeviceMem userMemIn = DeviceMem::create(opInfo_->inputAddr, count_ * DataUnitSize(dataType_));
138 0 : DeviceMem userMemOut = DeviceMem::create(opInfo_->outputAddr, count_ * DataUnitSize(dataType_));
139 0 : ret = HcclD2DMemcpyAsync(dispatcher_, userMemOut, userMemIn, stream_);
140 0 : CHK_PRT_RET(
141 : ret != HCCL_SUCCESS, HCCL_ERROR("[AllReduceRing][RunAsync]rank[%u] memcpy async failed", rank), ret);
142 0 : }
143 0 : return ret;
144 : }
145 :
146 0 : ret = PrepareAllreduceSliceData();
147 0 : CHK_PRT_RET(
148 : ret != HCCL_SUCCESS,
149 : HCCL_ERROR("[AllReduceRing][RunAsync]rank[%u] count[%llu] failed in PrepareSliceData step", rank, count_), ret);
150 :
151 0 : ret = RunReduceScatter(rank, rankSize, links);
152 0 : CHK_PRT_RET(
153 : ret != HCCL_SUCCESS,
154 : HCCL_ERROR(
155 : "[AllReduceRing][RunAsync]rank[%u] count[%llu] failed in reducescater "
156 : "step",
157 : rank, count_),
158 : ret);
159 :
160 0 : ret = RunAllGather(rank, rankSize, links);
161 0 : CHK_PRT_RET(
162 : ret != HCCL_SUCCESS,
163 : HCCL_ERROR(
164 : "[AllReduceRing][RunAsync]rank[%u] count[%llu] failed in AllGather "
165 : "step",
166 : rank, count_),
167 : ret);
168 :
169 0 : HCCL_INFO("AllReduceChunkMesh finished: rank[%u] ranksize[%u]", rank, rankSize);
170 0 : return HCCL_SUCCESS;
171 : }
172 :
173 0 : HcclResult AllReduceChunkMesh::RunReduceScatter(u32 rank, u32 rankSize, const std::vector<LINK>& links)
174 : {
175 0 : HCCL_INFO(
176 : "ReduceScatterMeshAtomicOpbase run: rank[%u] totalrank[%u] inputMem[%p] outputMem[%p] count[%llu]", rank,
177 : rankSize, inputMem_.ptr(), outputMem_.ptr(), count_);
178 :
179 : // 数据准备
180 0 : u32 unitSize = DataUnitSize(dataType_);
181 :
182 0 : DeviceMem commMemOut = outputMem_;
183 :
184 0 : DeviceMem src;
185 0 : DeviceMem dst;
186 :
187 0 : src = DeviceMem::create(static_cast<char*>(opInfo_->inputAddr), count_ * unitSize);
188 :
189 0 : if (commMemOut.ptr() == opInfo_->outputAddr) {
190 : // 图模式
191 0 : src = src.range(slices_[rank].offset, slices_[rank].size);
192 0 : dst = commMemOut.range(slices_[rank].offset, slices_[rank].size);
193 : } else {
194 : // 单算子
195 0 : src = src.range(0, count_ * unitSize);
196 0 : dst = commMemOut.range(0, count_ * unitSize);
197 : }
198 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, dst, src, stream_));
199 :
200 0 : DeviceMem emptySrc = commMemOut.range(0, 0);
201 0 : DeviceMem emptyDst = commMemOut.range(0, 0);
202 :
203 : // 主从流之前加空拷贝 防止成环
204 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, emptyDst, emptySrc, stream_));
205 :
206 0 : CHK_RET(MainRecordSub());
207 0 : CHK_RET(SubWaitMain());
208 :
209 0 : for (u32 round = 1; round < rankSize; round++) {
210 0 : u32 dstRank = (round + rank) % rankSize;
211 0 : Stream& subStream = (round == localRankSize_ - 1) ? stream_ : meshStreams_[round - 1];
212 0 : CHK_RET(links[dstRank]->TxAck(subStream));
213 0 : CHK_RET(links[dstRank]->RxAck(subStream));
214 : }
215 :
216 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, emptyDst, emptySrc, stream_));
217 :
218 0 : for (u32 round = 1; round < rankSize; round++) {
219 : // 主从流同步
220 :
221 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, emptyDst, emptySrc, stream_));
222 :
223 0 : CHK_RET(SubRecordMain());
224 0 : CHK_RET(MainWaitSub());
225 :
226 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, emptyDst, emptySrc, stream_));
227 :
228 0 : CHK_RET(MainRecordSub());
229 0 : CHK_RET(SubWaitMain());
230 :
231 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, emptyDst, emptySrc, stream_));
232 :
233 : // 跨片reduceinline写
234 0 : for (u32 peer = 1; peer < rankSize; peer++) {
235 0 : u32 gap = (peer + round) > rankSize ? (peer + round - 1) % (rankSize - 1) : (peer + round - 1);
236 0 : u32 dstRank = (gap + rank) % rankSize;
237 0 : Stream& subStream = (peer == localRankSize_ - 1) ? stream_ : meshStreams_[peer - 1];
238 0 : u32 dstSlice = peer - 1;
239 0 : void* remMemPtr = nullptr;
240 :
241 0 : if (commMemOut.ptr() == opInfo_->outputAddr) {
242 0 : CHK_RET(links[dstRank]->GetRemoteMem(UserMemType::INPUT_MEM, &remMemPtr));
243 : } else {
244 0 : CHK_RET(links[dstRank]->GetRemoteMem(UserMemType::OUTPUT_MEM, &remMemPtr));
245 : }
246 :
247 0 : src = DeviceMem::create(
248 0 : static_cast<char*>(remMemPtr) + slices_[rank].offset + sliceMap[rank][dstSlice].offset,
249 0 : sliceMap[rank][dstSlice].size);
250 0 : dst = commMemOut.range(
251 0 : slices_[rank].offset + sliceMap[rank][dstSlice].offset, sliceMap[rank][dstSlice].size);
252 0 : CHK_RET(HcclReduceAsync(
253 : dispatcher_, static_cast<void*>(src.ptr()), sliceMap[rank][dstSlice].size / unitSize, dataType_,
254 : reductionOp_, subStream, static_cast<void*>(dst.ptr()), links[dstRank]->GetRemoteRank(),
255 : links[dstRank]->GetLinkType(), INLINE_REDUCE_BIT));
256 : }
257 : }
258 :
259 0 : for (u32 round = 1; round < rankSize; round++) {
260 0 : u32 gap = (round - 1) == 0 ? (rankSize - 1) : (round - 1);
261 0 : u32 dstRank = (rank + gap) % rankSize;
262 0 : Stream& subStream = (round == localRankSize_ - 1) ? stream_ : meshStreams_[round - 1];
263 0 : CHK_RET(links[dstRank]->TxDataSignal(subStream));
264 0 : CHK_RET(links[dstRank]->RxDataSignal(subStream));
265 : }
266 :
267 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, emptyDst, emptySrc, stream_));
268 :
269 0 : CHK_RET(SubRecordMain());
270 0 : CHK_RET(MainWaitSub());
271 :
272 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, emptyDst, emptySrc, stream_));
273 0 : return HCCL_SUCCESS;
274 0 : }
275 :
276 0 : HcclResult AllReduceChunkMesh::RunAllGather(u32 rank, u32 rankSize, const std::vector<LINK>& links)
277 : {
278 0 : HCCL_INFO(
279 : "AllGatherMesh run: rank[%u] totalrank[%u] inputMem[%p] outputMem[%p] count[%llu]", rank, rankSize,
280 : inputMem_.ptr(), outputMem_.ptr(), count_);
281 0 : u32 unitSize = DataUnitSize(dataType_);
282 :
283 0 : DeviceMem userMemOut = DeviceMem::create(opInfo_->outputAddr, count_ * unitSize);
284 0 : DeviceMem commMemOut = DeviceMem::create(outputMem_.ptr(), outputMem_.size());
285 :
286 0 : DeviceMem emptySrc = userMemOut.range(0, 0);
287 0 : DeviceMem emptyDst = commMemOut.range(0, 0);
288 :
289 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, emptyDst, emptySrc, stream_));
290 :
291 0 : CHK_RET(MainRecordSub());
292 0 : CHK_RET(SubWaitMain());
293 :
294 0 : for (u32 round = 1; round < rankSize; round++) {
295 0 : u32 dstRank = BackwardRank(rank, rankSize, round);
296 0 : Stream& subStream = (round == localRankSize_ - 1) ? stream_ : meshStreams_[round - 1];
297 0 : CHK_RET(links[dstRank]->TxAck(subStream));
298 0 : CHK_RET(links[dstRank]->RxAck(subStream));
299 : }
300 :
301 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, emptyDst, emptySrc, stream_));
302 :
303 0 : CHK_RET(SubRecordMain());
304 0 : CHK_RET(MainWaitSub());
305 :
306 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, emptyDst, emptySrc, stream_));
307 :
308 0 : CHK_RET(MainRecordSub());
309 0 : CHK_RET(SubWaitMain());
310 :
311 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, emptyDst, emptySrc, stream_));
312 :
313 0 : DeviceMem src;
314 0 : DeviceMem dst;
315 0 : if (opInfo_->outputAddr != outputMem_.ptr()) {
316 0 : dst = userMemOut.range(slices_[rank].offset, slices_[rank].size);
317 0 : src = commMemOut.range(slices_[rank].offset, slices_[rank].size);
318 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, dst, src, meshStreams_[meshStreams_.size() - 1]));
319 : }
320 :
321 0 : for (u32 round = 1; round < rankSize; round++) {
322 0 : u32 dstRank = BackwardRank(rank, rankSize, round);
323 0 : Stream& subStream = (round == localRankSize_ - 1) ? stream_ : meshStreams_[round - 1];
324 0 : void* remMemPtr = nullptr;
325 0 : CHK_RET(links[dstRank]->GetRemoteMem(UserMemType::OUTPUT_MEM, &remMemPtr));
326 0 : src = DeviceMem::create(static_cast<char*>(remMemPtr) + slices_[dstRank].offset, slices_[dstRank].size);
327 0 : dst = userMemOut.range(slices_[dstRank].offset, slices_[dstRank].size);
328 0 : CHK_RET(HcclD2DMemcpyAsync(
329 : dispatcher_, dst, src, subStream, links[dstRank]->GetRemoteRank(), links[dstRank]->GetLinkType()));
330 :
331 0 : CHK_RET(links[dstRank]->TxDataSignal(subStream));
332 0 : CHK_RET(links[dstRank]->RxDataSignal(subStream));
333 0 : HCCL_DEBUG("[AllReduceChunkMesh]round %u success");
334 : }
335 :
336 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, emptyDst, emptySrc, stream_));
337 :
338 0 : CHK_RET(SubRecordMain());
339 0 : CHK_RET(MainWaitSub());
340 :
341 0 : CHK_RET(HcclD2DMemcpyAsync(dispatcher_, emptyDst, emptySrc, stream_));
342 :
343 0 : HCCL_INFO("[AllGatherMesh] finished: rank[%u]", rank);
344 0 : return HCCL_SUCCESS;
345 0 : }
346 : REGISTER_TEMPLATE(TemplateType::TEMPLATE_ALL_REDUCE_CHUNK_MESH, AllReduceChunkMesh);
347 : } // namespace hccl
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