--- test_at_parallel.sh.bak	2010-04-12 14:51:47.000000000 -0400
+++ test_at_parallel.sh	2010-04-12 14:52:12.000000000 -0400
@@ -11,6 +11,12 @@
 	exit
 fi
 
+numprocs=`${DO_PARALLEL} echo "Testing number of processors" | wc -l`
+if [ "$numprocs" -eq 1 ] ; then
+	echo "Error: Parallel jobs on one CPU are not supported. Exiting."
+	exit
+fi
+
 if [ -z "${AMBERHOME}" ] ; then
 	echo "Error: The environment variable AMBERHOME is not set. Exiting."
 	exit