It helps to have some idea what version you are talking about... On Mar 3, 2010, at 9:51 AM, Prentice Bisbal wrote:
> Is there a limit on how many MPI processes can run on a single host? > > I have a user trying to test his code on the command-line on a single > host before running it on our cluster like so: > > mpirun -np X foo > > When he tries to run it on large number of process (X = 256, 512), the > program fails, and I can reproduce this with a simple "Hello, World" > program: > > $ mpirun -np 256 mpihello > mpirun noticed that job rank 0 with PID 0 on node juno.sns.ias.edu > exited on signal 15 (Terminated). > 252 additional processes aborted (not shown) > > I've done some testing and found that X <155 for this program to work. > Is this a bug, part of the standard, or design/implementation decision? > > > -- > Prentice Bisbal > Linux Software Support Specialist/System Administrator > School of Natural Sciences > Institute for Advanced Study > Princeton, NJ > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
