Bug fix, make the IntelMPI module point to the right directory

Custom_MNS/flexible_custom_hierarchical_mns.py

@@ -50,7 +50,7 @@ COMP_RELEVANT_VERSIONS = {
 # Allow to reuse the stacks from other MPIs
 SWAPPABLE_MPIS = {
     'BullMPI': ('OpenMPI', None),
-    'impi': ('psmpi', '5.6'),
+    'impi': ('psmpi', '5'),
 }
 
 # MPI relevant version numbers