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From: Matthijs Richard Koot (matthijs.richard.koot_at_[hidden])
Date: 2006-06-19 05:31:45


Hi,

Does the IMPI protocol solve cross-platform endian/size issues? I'm not sure if this is implied by what's stated in the OpenMPI support-systems FAQ:

http://www.open-mpi.org/faq/?category=supported-systems

"8. Does Open MPI support execution in heterogeneous environments?

Open MPI currently requires that the representation of C, C++, and Fortran datatypes be the same on all platforms within a single parallel application. Endian and size difference between nodes in a parallel job will cause undefined behavior in Open MPI.

Support for heterogeneous run-time environments is on the to-do list, but has not yet been implemented."

Best regards,
Matthijs Koot