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Subject: Re: [hwloc-devel] BGQ empty topology with MPI
From: Christopher Samuel (samuel_at_[hidden])
Date: 2012-03-22 22:43:51


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On 22/03/12 20:58, Brice Goglin wrote:

> So there's something strange going on when MPI is added. Which MPI
> are using? Is this a derivative of MPICH that embeds hwloc? (MPICH
> >= 1.2.1 if I remember correctly)

Not sure about BG/Q, but BG/P uses code derived from MPICH2 according
to: http://wiki.bg.anl-external.org/index.php/Main_Page

Our BG/P seems to claim it's from MPICH2 1.1:

samuel_at_tambo:~> mpicc -v
mpicc for 1.1

cheers,
Chris
- --
    Christopher Samuel - Senior Systems Administrator
 VLSCI - Victorian Life Sciences Computation Initiative
 Email: samuel_at_[hidden] Phone: +61 (0)3 903 55545
         http://www.vlsci.unimelb.edu.au/

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