5d3ab08b69
Add new NVLS algorithm for allreduce using NVLink SHARP (intra-node only). Add new config options: cgaClusterSize, minCTAs, maxCTAs, netName. Enable LL128 when we use PXN to close rings. NVTX3 includes update. Fix crash when one CollNet (SHARP) rail fails to initialize.
32 lines
1.5 KiB
C
32 lines
1.5 KiB
C
/*************************************************************************
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* Copyright (c) 2015-2022, NVIDIA CORPORATION. All rights reserved.
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*
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* See LICENSE.txt for license information
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************************************************************************/
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#ifndef NCCL_BOOTSTRAP_H_
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#define NCCL_BOOTSTRAP_H_
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#include "nccl.h"
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#include "comm.h"
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struct ncclBootstrapHandle {
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uint64_t magic;
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union ncclSocketAddress addr;
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};
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static_assert(sizeof(struct ncclBootstrapHandle) <= sizeof(ncclUniqueId), "Bootstrap handle is too large to fit inside NCCL unique ID");
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ncclResult_t bootstrapNetInit();
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ncclResult_t bootstrapCreateRoot(struct ncclBootstrapHandle* handle, bool idFromEnv);
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ncclResult_t bootstrapGetUniqueId(struct ncclBootstrapHandle* handle);
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ncclResult_t bootstrapInit(struct ncclBootstrapHandle* handle, struct ncclComm* comm);
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ncclResult_t bootstrapAllGather(void* commState, void* allData, int size);
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ncclResult_t bootstrapSend(void* commState, int peer, int tag, void* data, int size);
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ncclResult_t bootstrapRecv(void* commState, int peer, int tag, void* data, int size);
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ncclResult_t bootstrapBarrier(void* commState, int *ranks, int rank, int nranks, int tag);
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ncclResult_t bootstrapIntraNodeAllGather(void* commState, int *ranks, int rank, int nranks, void* allData, int size);
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ncclResult_t bootstrapIntraNodeBroadcast(void* commState, int *ranks, int rank, int nranks, int root, void* bcastData, int size);
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ncclResult_t bootstrapClose(void* commState);
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ncclResult_t bootstrapAbort(void* commState);
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#endif
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