AI/rocm-systems
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

2.8.3-1

Browse Source 
Optimization for Tree allreduce on A100.
Improve aggregation performance.
Use shared buffers for inter-node send/recv.
Add NVTX profiling hooks.
Accelerate alltoall connections by merging communication for all
channels.
Add support for one hop communication through NVLink, for faster
send/recv communication on cubemesh topologies like DGX-1.
Improve alltoall scheduling to better balance intra/inter node
communication.
Increase send/recv parallelism by 8x, each warp sending or
receiving to a different peer.
Net: move to v4.
Net: make flush operation asynchronous to accelerate alltoall.
Net: define maximum number of requests.
Fix hang when using LL128 protocol after 2^31 steps.
Fix #379 : topology injection failing when using less GPUs than
described in the XML.
Fix #394 : protocol mismatch causing hangs or crashes when using
one GPU per node.


[ROCm/rccl commit: 920dbe5b35]
This commit is contained in:
Sylvain Jeaugey
2020-09-04 14:35:05 -07:00
parent 0277094dd2
commit a8908b34ee
90 changed files with 11172 additions and 3209 deletions
Download Patch File Download Diff File Expand all files Collapse all files
projects/rccl/src/include/net.h
+2 -2
View File
@@ -1,5 +1,5 @@
/*************************************************************************
* Copyright (c) 2016-2019, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2016-2020, NVIDIA CORPORATION. All rights reserved.
*
* See LICENSE.txt for license information
************************************************************************/
@@ -24,7 +24,7 @@ static ncclResult_t ncclNetRegMr(void* comm, void* data, int size, int type, voi
static ncclResult_t ncclNetDeregMr(void* comm, void* mhandle) { NCCLCHECK(ncclNet->deregMr(comm, mhandle)); return ncclSuccess; }
static ncclResult_t ncclNetIsend(void* sendComm, void* data, int size, void* mhandle, void** request) { NCCLCHECK(ncclNet->isend(sendComm, data, size, mhandle, request)); return ncclSuccess; }
static ncclResult_t ncclNetIrecv(void* recvComm, void* data, int size, void* mhandle, void** request) { NCCLCHECK(ncclNet->irecv(recvComm, data, size, mhandle, request)); return ncclSuccess; }
static ncclResult_t ncclNetFlush(void* recvComm, void* data, int size, void* mhandle) { NCCLCHECK(ncclNet->flush(recvComm, data, size, mhandle)); return ncclSuccess; }
static ncclResult_t ncclNetIflush(void* recvComm, void* data, int size, void* mhandle, void** request) { NCCLCHECK(ncclNet->iflush(recvComm, data, size, mhandle, request)); return ncclSuccess; }
static ncclResult_t ncclNetTest(void* request, int* done, int* size) { NCCLCHECK(ncclNet->test(request, done, size)); return ncclSuccess; }
static ncclResult_t ncclNetCloseSend(void* sendComm) { NCCLCHECK(ncclNet->closeSend(sendComm)); return ncclSuccess; }
static ncclResult_t ncclNetCloseRecv(void* recvComm) { NCCLCHECK(ncclNet->closeRecv(recvComm)); return ncclSuccess; }