[Mvapich-discuss] Fix for collective validation with ROCm

[Subramoni, Hari]

Dear, Damon.

Many thanks for fixing the issue and providing the patch to us.

We have taken it into the code with an acknowledgement to you. It will be available with the next release of OMB.

Best,
Hari.

From: Mvapich-discuss <mvapich-discuss-bounces+subramon=cse.ohio-state.edu at lists.osu.edu> On Behalf Of McDougall, Damon via Mvapich-discuss
Sent: Wednesday, January 11, 2023 7:33 PM
To: mvapich-discuss at lists.osu.edu
Cc: Ghazimirsaeed, Mahdieh <Mahdieh.Ghazimirsaeed at amd.com>
Subject: [Mvapich-discuss] Fix for collective validation with ROCm

[AMD Official Use Only - General] Hi, I think I fixed a bug in OSU MPI Microbenchmarks 7. 0. 1. I've attached a patch that I think fixes it. I hope it is helpful. Before the patch: $ srun -N 1 -n 2 ./get_local_rank ./mpi/collective/osu_alltoall
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[AMD Official Use Only - General]

Hi,

I think I fixed a bug in OSU MPI Microbenchmarks 7.0.1.  I've attached a patch that I think fixes it.  I hope it is helpful.

Before the patch:
$ srun -N 1 -n 2 ./get_local_rank ./mpi/collective/osu_alltoall -c -d rocm
# OSU MPI-ROCM All-to-All Personalized Exchange Latency Test v7.0
# Size       Avg Latency(us)        Validation
1                       0.74              Fail
DATA VALIDATION ERROR: ./mpi/collective/osu_alltoall exited with status 1 on message size 1.

After the patch:
$ srun -N 1 -n 2 ./get_local_rank ./mpi/collective/osu_alltoall -c -d rocm
# OSU MPI-ROCM All-to-All Personalized Exchange Latency Test v7.0
# Size       Avg Latency(us)        Validation
1                       0.74              Pass
2                       0.80              Pass
4                       0.67              Pass
8                       0.81              Pass
16                      0.75              Pass
32                      0.80              Pass
64                      0.85              Pass
128                     0.90              Pass
256                     1.36              Pass
512                     1.49              Pass
1024                    2.67              Pass
2048                    2.72              Pass
4096                    2.80              Pass
8192                   11.93              Pass
16384                  12.19              Pass
32768                  13.14              Pass
65536                  14.71              Pass
131072                 17.30              Pass
262144                 22.54              Pass
524288                 32.67              Pass
1048576                44.61              Pass

Thanks,
Damon

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