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2.10.3-1

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Add support for bfloat16.
Add ncclAvg reduction operation.
Improve performance for aggregated operations.
Improve performance for tree.
Improve network error reporting.
Add NCCL_NET parameter to force a specific network.
Add NCCL_IB_QPS_PER_CONNECTION parameter to split IB traffic onto multiple queue pairs.
Fix topology detection error in WSL2.
Fix proxy memory elements affinity (improve alltoall performance).
Fix graph search on cubemesh topologies.
Fix hang in cubemesh during NVB connections.
This commit is contained in:
Ke Wen
2021-07-08 14:12:04 -07:00
parent 3fec2fa5ee
commit 7e51592129
52 changed files with 3496 additions and 2469 deletions
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src/graph/paths.cc
+3 -1
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@@ -388,7 +388,9 @@ ncclResult_t ncclTopoComputePaths(struct ncclTopoSystem* system, struct ncclPeer
struct ncclPeerInfo* srcInfo = peerInfos+system->nodes[GPU].nodes[p].gpu.rank;
int shm;
NCCLCHECK(ncclTransports[TRANSPORT_SHM].canConnect(&shm, system, NULL, srcInfo, dstInfo));
if (shm == 0) {
int p2p;
NCCLCHECK(ncclTransports[TRANSPORT_P2P].canConnect(&p2p, system, NULL, srcInfo, dstInfo));
if (shm == 0 && p2p == 0) {
// Mark this peer as inaccessible. We'll trim it later.
system->nodes[GPU].nodes[p].paths[GPU][g].count = 0;
}