[mvapich-discuss] osu_bw, osu_bibw hang

[Devendar Bureddy]

Hi Uday

We received a similar kind of report with older Mellanox IB cards
(InfiniHost III) after MVAPICH2-1.8a2 release. We fixed it in the
development branch and this will be available in MVAPICH2-1.8RC1 in
few weeks.

Can you apply the attached patch to 1.8a1 or 1.8a2 and see if this
resolves the issue?  Please apply the patch using "patch -p0 <
diff.patch" at top level of mvapich2 source code directly and rebuild
the library.

-Devendar

On Wed, Feb 29, 2012 at 3:50 PM, Uday K Bondhugula <udayreddy at gmail.com> wrote:
> Hello,
>
> I have MVAPICH2 1.8a1. With osu-micro-benchmarks 3.5.1, I find that the osu
> bidirectional and unidirectional bandwidth tests hang. The latency test runs
> fine.
>
> $ mpirun_rsh -np 2 -host hosts osu_latency
> # Size            Latency (us)
> 0                         3.87
> 1                         3.94
> 2                         3.95
> 4                         3.95
> 8                         3.95
>
>
> $ mpirun_rsh -np 2 -host hosts osu_bibw
> # OSU MPI Bi-Directional Bandwidth Test v3.5.1
> # Size     Bi-Bandwidth (MB/s)
>
>
> Each node runs Linux 2.6.x (x86-64). MT25204 [InfiniHost III Lx HCA] (rev
> 20) is the InfiniBand adapter. mpicc is set to use ICC 11.1. Any help will
> be appreciated.
>
> Thanks,
> Uday
>
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