You need to create a machinefile to run mpi program on multiple machines. For example, if the machinefile is: host1 host2 host3 host4 Using 'mpirun -n 4 -f machinefile ./rams60 …’ will create 4 rams60 processes on the above 4 hosts (host1, host2, host3 and host4) separately. See http://www.mpich.org/static/downloads/3.1.1/mpich-3.1.1-userguide.pdf section 5. — Huiwei On Jun 11, 2014, at 10:05 AM, Francisco Pastor <[email protected]> wrote:

The relevant part of the script (RAMS_operatiu.bash) is

$ruta_mpi/mpirun -n 40 ./rams60 -f /home/meteo/RAMS/RUN/RAMSIN.operatiu > $log-INITIAL-$hoy-$horasim cat $log-INITIAL-$hoy-$horasim >> $log