ab2b89c4c3
Add support for IB SHARP 1PPN operation with user buffers. Improve support for MNNVL, add NVLS support and multi-clique support. * Detect the NVLS clique through NVML * Exchange XML between peers in the same NVLS clique and fuse XMLs before creating the topology graph. * Rework bootstrap allgather algorithms to allow for large allgather operations intra-node (XML exchange). Net/IB: add support for dynamic GID detection. * Automatically select RoCEv2/IPv4 interface by default. Allow to select IPv6 or even the network/mask. Reduce NVLS memory usage. * Add stepSize as property of a connection to allow for different sizes on different peers; set it to 128K for NVLink SHARP. Improve tuner loading * Look for more paths, be more consistent with the network device plugin. * Also search for tuner support inside the net plugin. Improve tuner API * Add context to support multi-device per process. Add magic number around comm object to detect comm corruption. * Add some basic check around communicators so that we can report a problem when a communicator gets corrupted or a wrong comm pointer is passed to NCCL. Fix net/IB error path. Github PR #1164 Fix collnet rail mapping with split comm. Fix packet reordering issue causing bootstrap mismatch * Use a different tag in ncclTransportP2pSetup for the connectInfo exchange and the following barrier. Fix hang when crossNic is inconsistent between ranks. Fix minCompCap/maxCompCap computation. Github issue #1184
27 lines
1.1 KiB
C
27 lines
1.1 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 collNetSupport, int nvlsSupport, int numPipeOps,
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int *algorithm, int *protocol, int* nChannels) { *algorithm = NCCL_ALGO_RING; *protocol = NCCL_PROTO_SIMPLE; return ncclSuccess; }
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__hidden ncclResult_t pluginDestroy(void* context) { return ncclSuccess; }
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#define PLUGIN_NAME "Example"
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const ncclTuner_v2_t ncclTunerPlugin_v2 = {
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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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