On Sep 16, 2015, at 8:22 AM, marcin.krotkiewski <marcin.krotkiew...@gmail.com> 
wrote:
> 
> Thanks a lot, that looks right! Looks like some reading to do..
> 
> Do you know if in the OpenMPI implementation the MPI_T-interfaced MCA 
> settings are thread-local, or rank-local? 

By "rank local", I assume you mean "process local" (remember: every MPI process 
has at least 2 ranks -- one in MPI_COMM_WORLD, and one in MPI_COMM_SELF).

All MPI_T interfaces in MPI are local to the MPI process.

How each MPI implementation defines an "MPI process" is up to them; Open MPI 
defines an "MPI process" as an "OS process".

-- 
Jeff Squyres
jsquy...@cisco.com
For corporate legal information go to: 
http://www.cisco.com/web/about/doing_business/legal/cri/

Reply via email to