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

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