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#!/bin/sh
# ------------------------------------------------------------------------
# Only need to change these two lines to make this script work
# with any MPY-based program.
prog=mpy
maxprocesses=28
# Reverse comments to get LAM or MPICH mpirun
# These you may need to change as you move from one MPI environment to
# another, but not from one MPY-derived program to another in a single
# MPI environment.
np_option=-np # MPICH
sep= # MPICH
#np_option="-w -c" # LAM
#sep=-- # LAM
# ------------------------------------------------------------------------
# This script calls mpirun if the -np option appears on the command line,
# otherwise, it adds the -nompi argument and just starts mpy.
# To run with all maxprocesses processors, use the -npx option.
# If you need to pass other arguments to mpirun, list them all first,
# and follow them by -- followed by zero or more arguments to mpy.
args=
mpiargs=
np=
while [ $# -gt 0 ]
do
case $1 in
-np) shift; np=$1;;
-npx) np=$maxprocesses;;
-nompi) ;;
--) mpiargs="$args"; args=;;
*) args="$args $1";;
esac
shift
done
case "X$np" in
X) args="-nompi $args";;
*) args="$np_option $np $mpiargs $prog $sep $args"; prog=mpirun;;
esac
exec $prog $args
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