Right, it has nothing to do with the tag. The sequence number is an internal counter that help OMPI to deliver the messages in the MPI required order (FIFO ordering per communicator per peer).
Thanks for offering your help to debug this issue. We'll need to figure out how this can happen, and we will get back to you for further debugging. George. On Sun, Apr 8, 2018 at 6:00 PM, Noam Bernstein <noam.bernst...@nrl.navy.mil> wrote: > On Apr 8, 2018, at 3:58 PM, George Bosilca <bosi...@icl.utk.edu> wrote: > > Noam, > > Thanks for your output, it highlight an usual outcome. It shows that a > process (29662) has pending messages from other processes that are tagged > with a past sequence number, something that should have not happened. The > only way to get that is if somehow we screwed-up the sending part and push > the same sequence number twice ... > > More digging is required. > > > OK - these sequence numbers are unrelated to the send/recv tags, right? > I’m happy to do any further debugging. I can’t share code, since we do > have access but it’s not open source, but I’d be happy to test out anything > you can suggest. > > thanks, > Noam > > ____________ > | > | > | > *U.S. NAVAL* > | > | > _*RESEARCH*_ > | > LABORATORY > > Noam Bernstein, Ph.D. > Center for Materials Physics and Technology > U.S. Naval Research Laboratory > T +1 202 404 8628 F +1 202 404 7546 > https://www.nrl.navy.mil > > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users >
_______________________________________________ users mailing list users@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/users
