I'm afraid I don't know offhand -- but I do have a dim recollection that MX requires all processes to be available at INIT time (i.e., processes that join later, e.g., via MPI-2 dynamics, will not communicate via MX). That may or may not be true -- don't hold me to that.
Can someone who knows MX better than me comment about this? On Dec 28, 2011, at 8:58 AM, Sabela Ramos Garea wrote: > Thanks for your answers. > Is there a similar issue with mx BTL? I mean, using the mx BTL, is it > possible to reach a parent job from a spawned process? > > Thanks again! :-) > > El 16 de diciembre de 2011 15:08, Jeff Squyres <jsquy...@cisco.com> escribió: > On Dec 14, 2011, at 4:01 PM, Ralph Castain wrote: > > >> As far as I know, there is no support for some MPI-2 features in the > >> shared memory BTL as dynamic process creation or port connection. Are you > >> planning to include this support? > > > > It depends on what exactly you mean. Dynamically spawned processes do use > > the shared memory BTL between themselves, but not with the processes in > > their parent job. We plan to support that as well at some future time. > > ...when enough people ask for it. :-) > > We've talked about supporting this for a long time, but to be blunt, there > hasn't been enough demand for it to justify spending the time to figure out > all the issues and implement it properly. :-( > > Patches would be welcome, though! :-) > > -- > Jeff Squyres > jsquy...@cisco.com > For corporate legal information go to: > http://www.cisco.com/web/about/doing_business/legal/cri/ > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
