Dear all,
Some time ago there have been multiple discussions on an MPI ABI.
Finally we concluded that we would be able to accomplish the same goal
by putting a small layer on top of MPI (MorphMPI) that would make
abstraction of the underlying MPI implementation. As usual, the solution
is to add an extra level of abstraction ;-). Applications compiled
against MorphMPI would be able to be relinked to any MPI implementation
without having to be recompiled.
So finally I developed a small prototype of such a MorphMPI. Using this
MorphMPI I was able to compile an application on an AMD-Opteron and
launch it using mpich-ch_p4, mpichgm and the preinstalled mpich on a
Cray XD1. To make sure it would not only work with several derivatives
of mpich I also tested it successfully on an HP-UX using mpich-ch_p4 and
HP-MPI (which is LAM based).
I uploaded my prototype to http://sourceforge.net/projects/morphmpi and
you can find a (far too short) description at
http://morphmpi.sourceforge.net/.
If there is any interest in the library I plan to make it more
user-friendly and extend it to cover the full MPI-1.1 standard.
toon
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