nawrinsu
166268d715
* Fix protocol and channel override when tuner is used * Added comment * Fix README for basic tuner implementation
35 lines
1.3 KiB
C
35 lines
1.3 KiB
C
/*************************************************************************
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* Copyright (c) 2015-2019, 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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#include "tuner.h"
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#define __hidden __attribute__ ((visibility("hidden")))
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__hidden ncclResult_t pluginInit(size_t nRanks, size_t nNodes, ncclDebugLogger_t logFunction, void **context) { return ncclSuccess; }
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__hidden ncclResult_t pluginGetCollInfo(void* context, ncclFunc_t collType, size_t nBytes,
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int numPipeOps, float** collCostTable, int numAlgo, int numProto,
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int regBuff, int* nChannels) {
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// Update NCCL core generated cost table. Updated table will be evaluated by NCCL to pick the best algo/proto combo
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float (*table)[NCCL_NUM_PROTOCOLS] = (float (*)[NCCL_NUM_PROTOCOLS])collCostTable;
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if (table[NCCL_ALGO_RING][NCCL_PROTO_SIMPLE] != NCCL_ALGO_PROTO_IGNORE) {
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table[NCCL_ALGO_RING][NCCL_PROTO_SIMPLE] = 0.0;
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}
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*nChannels = 0;
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return ncclSuccess;
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}
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__hidden ncclResult_t pluginDestroy(void* context) { return ncclSuccess; }
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#define PLUGIN_NAME "Basic"
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const ncclTuner_v4_t ncclTunerPlugin_v4 = {
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.name = PLUGIN_NAME,
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.init = pluginInit,
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.getCollInfo = pluginGetCollInfo,
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.destroy = pluginDestroy
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};
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