The morph layer came from the idea of how can we add a small tool layer on top of MPI A, so that a code compiled for MPI B can run on top of MPI A. I don't think this will be that easy to do and I am not sure if this is something for the side document, since it would probably require changes in the first party interface.

You mean the idea covered by http://www.google.com/patents/US7966624? Jeff -- Jeff Hammond Argonne Leadership Computing Facility University of Chicago Computation Institute [email protected] / (630) 252-5381 http://www.linkedin.com/in/jeffhammond https://wiki.alcf.anl.gov/parts/index.php/User:Jhammond ALCF docs: http://www.alcf.anl.gov/user-guides