Done: http://goc.grid.sinica.edu.tw/gocwiki/MPI_Support_with_Torque.
Cal
Flavia Donno wrote:
> Hello.
> Can this info be made available somewhere (wiki pages) and not just in
> the archive
> of the LCG Rollout list ?
>
> Thank you.
>
> Flavia
>
> Maarten Litmaath wrote:
>
> > Charles Loomis wrote:
> >
> >> Hello,
> >>
> >> I've managed to get a reasonable configuration of torque, maui, mpich,
> >> and mpiexec working at LAL. The configuration fixes the problem you
> >> describe below and also adds support for mpiexec. It uses newer
> >> versions of torque and mpich than are standard in the LCG/EGEE
> >> distribution. The newer versions are running at LAL and work well.
> >>
> >> There is a short readme on the configuration which needs to be changed
> >> here:
> >>
> >> http://grid05.lal.in2p3.fr/mpi/readme.txt
> >>
> >> and the rpms can be found here:
> >>
> >> http://grid05.lal.in2p3.fr/mpi/
> >
> >
> > Should we use those for LCG-2_4_0? Steve, what about your version?
> >
> >> MPICH and mpiexec have been compiled to use p4 by default which is
> >> probably what you'll want.
> >>
> >> Cheers.
> >>
> >> Cal
> >>
> >>
> >>
> >> Klaere Cassirer wrote:
> >>
> >>> Hello,
> >>> I have questions about MPICH jobs. Our site runs LCG2.3 on SL3 with
> the
> >>> maui
> >>> scheduler and pbs.
> >>> - Does anybody know how to specify a NODENUMBER greater than the
> >>> number of
> >>> WNs on a site, which has more than 1 CPU per WN? I want to use all
> >>> available
> >>> CPUs (here: 2 CPUs per WN).
> >>> - How can I tell maui to reserve x nodes for me, but only one CPU per
> >>> node?
> >>>
> >>> In LCG2.2 times I specified nodenumber=x, then ran a script which
> >>> started 2
> >>> mpich-processes on each of the x nodes. But with maui, I get x CPUs
> >>> (every
> >>> 2nd on the same WN), but not more.
> >>>
> >>> Regards
> >>>
> >>> --
> >>> Klaere Cassirer
> >>> Fraunhofer-Institute for Algorithms and Scientific Computing (SCAI)
> >>> Schloss Birlinghoven
> >>> D-53754 Sankt Augustin
> >>>
> >>> Tel: +49 - 2241 - 14 - 2758
> >>> Fax: +49 - 2241 - 14 - 42758
> >>> E-mail: [log in to unmask]
> >>> Internet: http://www.scai.fraunhofer.de
> >>>
>
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