Index: /issm/trunk-jpl/externalpackages/petsc/install-3.6-lonestar.sh
===================================================================
--- /issm/trunk-jpl/externalpackages/petsc/install-3.6-lonestar.sh	(revision 19952)
+++ /issm/trunk-jpl/externalpackages/petsc/install-3.6-lonestar.sh	(revision 19953)
@@ -44,5 +44,5 @@
 set -x # Echo commands, use set echo with csh
 
-mpiexec -np 1 ./conftest-arch-linux2-c-opt
+ibrun -np 1 ./conftest-arch-linux2-c-opt
 EOF