openmpi versus mpich2

Eric A. Borisch eborisch at
Mon Aug 8 07:21:26 PDT 2011

On Mon, Aug 8, 2011 at 8:57 AM, Jason Swails <jason.swails at> wrote:
> I personally use mpich2 myself, but tend to compile my own MPIs, as the
> multiplicity can get you in trouble (if you link serial libraries to MPI
> code, you can run into lots of problems if the compiler version used to
> build the MPI libraries, and therefore the ones you're using to build the
> MPI code if you use mpicc/mpif90, is not the same as the compiler version
> you used to build the serial libraries).
> HTH,
> Jason

FWIW, The mpich2 port supports a number of underlying compilers
through the variants... Hopefully your favorite in the list.
Eric A. Borisch

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