On May 23, 2014, at 7:21 AM, Iván Cores González <ivan.cor...@udc.es> wrote:
> Hi Ralph, > Thanks for your response. > I see your point, I try to change the algorithm but some processes finish > while the others are still calling MPI functions. I can't avoid this > behaviour. > The ideal behavior is the processes go to sleep (or don't use the 100% of > load) when the MPI_Finalize is called. > > For the time being maybe the fastest solution is instert a "manual" sleep > before the MPI_Finalize. > > Another question, Could be possible kill some MPI processes and avoid that > the mpirun fails? Or this behaviuor is impossible? I assume you mean have them exit without calling MPI_Finalize, so they don't block? Technically, yes, though we wouldn't recommend that behavior. You can add "-mca orte_allowed_exit_without_sync 1" to your cmd line (or set the mca param in your environment, etc.) and mpirun won't terminate you if a proc exits without calling MPI_Finalize. We will still, however, terminate the job if (a) a proc dies by signal (e.g., segfaults), or (b) a proc exits with a non-zero status, so you'll still have some protection from hangs. > > Thanks, > Ivan Cores > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
