Looking for Portable MPI I/O Implementation?

rikt writes "I am trying to implement MPI I/O for our CFD product. I am facing a problem with the portability of the generated data files. MPI2 interface describes a way to achieve this either by using 'external32' or user defined data representations. The problem is that ROMIO, the most widely available MPI I/O implementation, has not implemented support for any data representation other than 'native'. Do you know of any MPI I/O implementation that supports this, and is available on various platforms? I know IBM and Sun supports this, but I am looking for a solution on Linux and Windows (both 32 & 64 bit) as well."

Comments

Definitions

[Godeke]

I'm a geek who does administration and programming in Windows and Linux realms, am fairly aware of my acronym soup and yet this left me, um, cold. For those who don't feel like doing the research:

MPI: Message Passing Interface, a standard for parallel processing environment message passing.
MPI-2: Extended version of MPI.
MPI-IO: Parallel input/output extensions for MPI, included in MPI-2
ROMIO: An implementation of these extensions.
CFD: Computational Fluid Dynamics (a good candidate for parallel processing, thus the interest in the above).

Of course, the fact I had to look them up means I have no idea about implementations, but at least others won't have to wonder what all that was about.