WNs also require a working MPI implementation, Open MPI and MPICH-2 are recommended. The devel packages should also be installed in order to allow user to compile their applications. Refer to your OS repositories for the exact packages.
If you would like to use the OPEN MPI flavour in your site please install:
#yum install openmpi openmpi-devel
Changed:
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If you would like to use the MPICH2 flavour in your site please install:
# yum install mpich2
> >
If you would like to use the MPICH2 flavour in your site please install: