+# Don't use wc -l to compute it to avoid issues with trailing \n at EOF
+hostfile_procs=`grep -c [a-zA-Z0-9] $HOSTFILE`
+
+if [ -z "${NUMPROCS}" ] ; then
+ # Use the amount of processes in the hostfile as default value for the -np parameter
+ NUMPROCS=$hostfile_procs
+fi
+
+
+if [ ${NUMPROCS} -gt ${hostfile_procs} ] ; then
+ echo "You requested to use ${NUMPROCS} processes, but there is only ${hostfile_procs} processes in your hostfile..." >&2
+fi