RIght, my mistake, I missed the new cid generation in the comm duplicator calls. Thanks a lot!
-- Abhisek Live Long and Prosper On Mon, Aug 31, 2015 at 9:25 AM, Todd Kordenbrock <thkgc...@gmail.com> wrote: > Hi Abhisek, > > Both the portals4 and pt2pt OSC components call ompi_comm_dup() near the > beginning of component_select(), so each window has it's own communicator. > The duplicated communicator has a unique contextid and therefore the window > has unique match bits/hash key. > > Thanks, > todd > > > > On Mon, Aug 31, 2015 at 5:59 AM, Jeff Squyres (jsquyres) < > jsquy...@cisco.com> wrote: > >> On Aug 27, 2015, at 11:55 AM, abhisek...@gmail.com wrote: >> > >> > I want to know if it is allowed in MPI one-sided communication to open >> multiple windows simultaneously using the same communicator. >> >> Yes. >> >> > The standard does not seem to forbid it as far as I can see, but when I >> look at the open mpi osc components (rdma and portals4) it looks like a >> window is always identified by the context-id in the communicator (for >> example the match bits in portals4 component use the communicator cid to >> distinguish among windows, there is a hash-table in the rdma component that >> uses the communicator cid as the key to store open modules). It seems to me >> that these components may not be able to support multiple open windows >> opened with the same communicator. >> >> Nathan/Todd will have to answer that. I'd be (very) surprised if the >> code did not support multiple windows that were generated from the same >> communicator. >> >> -- >> 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 >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >> Link to this post: >> http://www.open-mpi.org/community/lists/users/2015/08/27509.php >> > > > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2015/08/27510.php >
