When you say "it fails", what do you mean? That it doesn't run at all, or that it still fills each node, or...?
On Tue, Mar 2, 2010 at 9:49 AM, Addepalli, Srirangam V < srirangam.v.addepa...@ttu.edu> wrote: > Hello All. > I am trying to run a parallel application that should use one core less > than the no of cores that are available on the system. Are there any flags > that i can use to specify this. > > i tried using the following syntax with machinefile > > openmpi-1.4-BM/bin/mpirun -np 14 -npernode 7 -machinefile machinefile > ven_nw.e <coll.dt5. This fails. Is there any other way around this. When i > get two nodes (with 16 cores) allocated from SGE > and we want to use only 14 cores out of the 16 allocated. > > Rangam > > My machine file has > > compute-9-8.local > compute-9-8.local > compute-9-8.local > compute-9-8.local > compute-9-8.local > compute-9-8.local > compute-9-8.local > compute-9-6.local > compute-9-6.local > compute-9-6.local > compute-9-6.local > compute-9-6.local > compute-9-6.local > compute-9-6.local > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
