AI/rocm-systems
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17 Cometimentos
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Wenkai Du 09ef75656a Add more Rome 4P2H models 2020-08-06 18:20:02 +00:00
Wenkai Du e7a10aa0e4 Topology tuning for 4P2H on Rome (#242) 
* Topology tuning for 4P2H on Rome

* Use ncclTopoIdToIndex
 2020-07-27 11:53:57 -07:00
Sourav Chakraborty 2475daafee add 4 node 8P6L 1 NIC 2nd Hive model 2020-07-22 16:27:15 +00:00
Sourav Chakraborty db55afb014 simplify model definitions in topo expl 2020-07-22 16:05:53 +00:00
Wenkai Du d5f90e19b5 Add 8P6L multi-node models (#239) 2020-07-21 14:10:36 -07:00
Wenkai Du ab787c767e Change default channels duplication for chordal ring (#233) 2020-07-14 15:16:50 -07:00
Wenkai Du d3548cc474 topo_expl: each rank needs to have its own memory for graphs (#225) 2020-07-01 15:11:02 -07:00
Wenkai Du a6be82f5ab topo_expl: fix broken build (#224) 2020-06-30 11:11:23 -07:00
Wenkai Du e80e29573c Add gather, scatter and alltoall collectives 
Introducing 3 new APIs:
ncclResult_t  ncclGather(const void* sendbuff, void* recvbuff, size_t sendcount,
    ncclDataType_t datatype, int root, ncclComm_t comm, hipStream_t stream);
ncclResult_t  ncclScatter(const void* sendbuff, void* recvbuff,
    size_t recvcount, ncclDataType_t datatype, int root, ncclComm_t comm,
    hipStream_t stream);
ncclResult_t  ncclAllToAll(const void* sendbuff, void* recvbuff, size_t count,
    ncclDataType_t datatype, ncclComm_t comm, hipStream_t stream);

Only out of place operation is supported.
Preprocessor symbol RCCL_GATHER_SCATTER=1 indicates API availibility.
By default the APIs launche RCCL kernel implementation, which can be disabled by
RCCL_ALLTOALL_KERNEL_DISABLE=1. Then the APIs use wrapper around ncclSend and ncclRecv.
 2020-06-09 17:44:08 -07:00
Wenkai Du 71ec3e09df tpol_expl: update to 2.7 2020-06-09 17:40:24 -07:00
Wenkai Du b3c9852634 Give preference to path with more XGMI connections 2020-05-14 15:33:16 -07:00
Wenkai Du 5743c6b7d2 topo_expl: fix build error 2020-04-27 17:17:05 +00:00
Wenkai Du 6f54b23503 topo_expl: update to 2.6 2020-04-01 13:37:08 -07:00
Wenkai Du 32388d60a9 topo_expl: add a few more single node models 2020-03-02 11:43:03 -08:00
Wenkai Du 934b6de557 topo_expl: use bandwidth numbers defined in graph in CPU models 2020-02-26 14:17:36 -08:00
Wenkai Du d2adc61bf6 Revise PCI BW numbers on Rome 2020-02-26 13:17:49 -08:00
Wenkai Du 55f8e2dec7 Add topology explorer 2020-02-19 14:42:06 -08:00