[torqueusers] Hogging Nodes

rcbord at wm.edu rcbord at wm.edu
Thu Mar 19 11:40:44 MDT 2009

  If you are using "mpiexec" from OSC there is the -pernode and -npernode options.  I use them so that I can run Hybrid(mpi/openmp) parallel codes, 1 mpi process per node and 2 or 4 openmp threads.

the pbs resources request lines like this in my PBS scripts. 

#PBS -l walltime=00:10:00
#PBS -l nodes=3:cluster:ppn=2

mpiexec -pernode ./executable 

Chris Bording
High Performance Computing Application Analyst
The Virginia Institute of Marine Science
rcbord at wm.edu

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