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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 > >>> >