On Aug 18, 2009, at 8:39 AM, Federico Golfrè Andreasi wrote:

I think I've solved my problem:

in the previous code the arguments of the MPI_Comm_spawn_multiple where filled only by the "root" process not by all the process in the group. Now all the ranks have all that information and the spawn is done correctly. But I read on http://www.mpi-forum.org/docs/mpi21-report/node203.htm that those information are significant only at root.

You are exactly right -- this is a legitimate bug! I've fixed our development trunk in https://svn.open-mpi.org/trac/ompi/timeline and have filed a CMR to get this fix into 1.3.4.

Thanks for the report!

--
Jeff Squyres
jsquy...@cisco.com


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