The National Institute for Computational Sciences

Beacon: How do I switch from Intel MPI to another MPI implementation?

Beacon: How do I switch from Intel MPI to another MPI implementation? I get an error when I do "module unload intel-mpi".

If the Intel compilers and programming environment is still desired, you need only to execute:

module swap intel-mpi $otherMPIModule

However, if you wish to completely remove the Intel programming environment in order to use another compiler, then you must remove the mpi module first:
module unload intel-mpi

Then, you can unload the compilers, which will automatically unload the Programming Environment (PE-intel):
module unload intel-compilers