Wenkai Du
68 lines
2.5 KiB
C++
68 lines
2.5 KiB
C++
/*************************************************************************
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* Copyright (c) 2015-2022, NVIDIA CORPORATION. All rights reserved.
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* Modifications Copyright (c) Microsoft Corporation. Licensed under the MIT License.
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*
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* See LICENSE.txt for license information
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************************************************************************/
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#include "enqueue.h"
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#include "collectives.h"
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#include "argcheck.h" // Need some checks here since we access comm
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#include "msccl/msccl_lifecycle.h"
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struct NvtxParamsSendRecv {
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size_t bytes;
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int peer;
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};
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constexpr const nvtxPayloadSchemaEntry_t SendRecvSchema[] = {
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{0, NVTX_PAYLOAD_ENTRY_TYPE_SIZE, "Bytes"},
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{0, NVTX_PAYLOAD_ENTRY_TYPE_INT, "Peer rank", nullptr, 0, offsetof(NvtxParamsSendRecv, peer)}
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};
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NCCL_API(ncclResult_t, ncclSend, const void* sendbuff, size_t count, ncclDataType_t datatype, int peer,
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ncclComm_t comm, cudaStream_t stream);
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ncclResult_t ncclSend(const void* sendbuff, size_t count, ncclDataType_t datatype, int peer,
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ncclComm_t comm, cudaStream_t stream) {
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NvtxParamsSendRecv payload{count * ncclTypeSize(datatype), peer};
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NVTX3_FUNC_WITH_PARAMS(Send, SendRecvSchema, payload)
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if (mscclAvailable() && !mscclIsCaller()) {
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return mscclEnqueueCheck(
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sendbuff, nullptr, nullptr, nullptr, nullptr, nullptr,
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count, datatype, 0, peer, ncclSum, mscclFuncSend, comm, stream);
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}
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struct ncclInfo info = { ncclFuncSend, "Send",
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NULL, (void*)sendbuff, count, datatype, ncclSum, peer, comm, stream, /* Args */
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1, 1 };
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ncclResult_t ret;
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NCCLCHECK(ncclGroupStart());
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ret = ncclEnqueueCheck(&info);
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NCCLCHECK(ncclGroupEnd());
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return ret;
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}
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NCCL_API(ncclResult_t, ncclRecv, void* recvbuff, size_t count, ncclDataType_t datatype, int peer,
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ncclComm_t comm, cudaStream_t stream);
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ncclResult_t ncclRecv(void* recvbuff, size_t count, ncclDataType_t datatype, int peer,
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ncclComm_t comm, cudaStream_t stream) {
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NvtxParamsSendRecv payload{count * ncclTypeSize(datatype), peer};
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NVTX3_FUNC_WITH_PARAMS(Recv, SendRecvSchema, payload)
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if (mscclAvailable() && !mscclIsCaller()) {
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return mscclEnqueueCheck(
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nullptr, nullptr, nullptr, recvbuff, nullptr, nullptr,
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count, datatype, 0, peer, ncclSum, mscclFuncRecv, comm, stream);
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}
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struct ncclInfo info = { ncclFuncRecv, "Recv",
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NULL, recvbuff, count, datatype, ncclSum, peer, comm, stream, /* Args */
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1, 1 };
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ncclResult_t ret;
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NCCLCHECK(ncclGroupStart());
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ret = ncclEnqueueCheck(&info);
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NCCLCHECK(ncclGroupEnd());
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return ret;
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}
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