Building CESM with different MPI

[nico]

Hello I am planning to try CESM with different MPI, as OpenMpi, MPICH and intelMPI. I have a doubt regarding how to add include and lib directories for the different MPI instancies in order to build the model. Do I have to specify the directories in config_machines.xml or config_compilers.xml?

 

[jedwards]

All of these mpi libraries have examples in config_machines.xml and config_compilers.xml - I highly recommend using
lmod modules to handle the complexities of dealing with multiple mpi libraries on a system. You might consider trying spack.