On Tue, Dec 1, 2009 at 6:15 PM, Nicolas Bock <nicolasb...@gmail.com> wrote: > After reading Anthony's question again, I am not sure now that we are having > the same problem, but we might. In any case, the attached example programs > trigger the issue of running out of pipes. I don't see how orted could, even > if it was reused. There is only a very limited number of processes running > at any given time. Once slave terminates, how would it still have open > pipes? Shouldn't the total number of open files, or pipes, be very limited > in this situation? And yet, after maybe 20 or so iterations in master.c, > orted complains about running out of pipes. > > nick >
What version of OMPI are you trying it with? I can easily run it up to more than 200 iterations. Also, how many nodes are you running this on? > > On Tue, Dec 1, 2009 at 16:08, Nicolas Bock <nicolasb...@gmail.com> wrote: >> >> Hello list, >> >> a while back in January of this year, a user (Anthony Thevenin) had the >> problem of running out of open pipes when he tried to use MPI_Comm_spawn a >> few times. As I the thread his started in the mailing list archives and have >> just joined the mailing list myself, I unfortunately can't reply to the >> thread. "The thread was titled: Doing a lot of spawns does not work with >> ompi 1.3 BUT works with ompi 1.2.7". >> >> The discussion stopped without really presenting a solution. Is the issue >> brought up by Anthony fixed? We are running into the same problem. >> >> Thanks, nick >> > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
