I'm trying to run the exosome example with MPI but can't seem to get it to
work. I installed binaries both on Fedora 19 and Ubuntu Trusty. I have
openmpi on both and mpich on Fedora as well. mpirun is in my path.
Do I need to build with MPI mysefl for this to work or is this supposed to
work with binaries out of the box?