Appreciate the clarification. Unfortunately, the answer is ³no² for any of
our current releases. We only use the ³host² info argument to tell us which
nodes to use the info has no bearing on the eventual mapping of ranks to
nodes. Repeated entries are simply ignored.
I was mainly asking for the
> We a performing a comparison of HPMPI versus OpenMPI using Infiniband and
> seeing a performance hit in the vicinity of 60% (OpenMPI is slower) on
> controlled benchmarks. Since everything else is similar, we suspect a
> problem with the way we are using or have installed OpenMPI.
>
> Please
