On May 9, 2014, at 8:34 PM, Spenser Gilliland <spen...@gillilanding.com> wrote:
> Thanks for the quick response. I'm having alot of fun learning MPI and this
> mailing list has been invaluable.
>
> So, If I do a scatter on an inter communicator will this use all left
> process to scatter on all right processes?
Yes. And vice versa (simultaneously). See the official description of
MPI_SCATTER, including its definition for what happens on intercommunicators in
the MPI-3.0 document:
http://www.mpi-forum.org/docs/mpi-3.0/mpi30-report.pdf
The description for MPI_SCATTER starts on p159.
--
Jeff Squyres
jsquy...@cisco.com
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