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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
>>