On Mar 6, 2012, at 10:17 AM, nadia.derbey_at_[hidden] wrote:
> Since MPI_Comm_create sets the created communicator to MPI_COMM_NULL for the processes that are not in the group , may be preceding your collectives by a:
> if (MPI_COMM_NULL != new_comm) {
> <your collective>
> }
> could be enough.
>
> But may be I'm wrong...
You're not. :-)
--
Jeff Squyres
jsquyres_at_[hidden]
For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
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