-p Test Reduce with 12 processes
-$ ../../bin/smpirun -map -hostfile ${srcdir:=.}/hostfile -platform ${srcdir:=.}/../msg/small_platform.xml -np 12 ./reduce -q
+p Test Reduce with 12 processes
+$ ../../bin/smpirun -map -hostfile ${srcdir:=.}/hostfile -platform ${srcdir:=.}/../msg/small_platform.xml -np 12 ./reduce -q
+> You requested to use 12 processes, but there is only 5 processes in your hostfile...