On Mon, 3 Dec 2018 19:41:25 +0000
"Hammond, Simon David via users" <users@lists.open-mpi.org> wrote:

> Hi Open MPI Users,
> Just wanted to report a bug we have seen with OpenMPI 3.1.3 and 4.0.0
> when using the Intel 2019 Update 1 compilers on our
> Skylake/OmniPath-1 cluster. The bug occurs when running the Github
> master src_c variant of the Intel MPI Benchmarks.

I've noticed this also when using intel mpi (2018 and 2019u1). I
classified it as a bug in imb but didn't look too deep (new
reduce_scatter code).

/Peter K

Sent from my Android device with K-9 Mail. Please excuse my brevity.
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