COB-49: use selected mipcc and mpirun. Do no write intermediate files in source dir.

SubSystems/Online_Cobalt/validation/system/mpi/basic-mpi.test

 #!/bin/bash -ve
 
-source ../../validation_utils.sh
-check_running_on_cobalt2
-
-/opt/openmpi/bin/mpicc mpi-hello-world.c -o mpi-hello-world
-/opt/openmpi/bin/mpirun --tag-output -H localhost,localhost ./mpi-hello-world | sort | fgrep 'Hello world' | wc -l | grep '^2$'
+mpicc `dirname $0`/mpi-hello-world.c -o /tmp/mpi-hello-world || exit 1
+mpirun --tag-output -H localhost,localhost /tmp/mpi-hello-world | sort | fgrep 'Hello world' | wc -l | grep '^2$'
 
 exit 0