Since another user was doing something that caused a similar problem, perhaps we are missing a key piece of info here. Are you launching one app_context across 128 nodes? Or are you launching 128 app_contexts, each on a separate node?
On Feb 26, 2010, at 10:23 AM, Federico Golfrè Andreasi wrote: > I'm doing some tests and it seems that is not able to do a spawn multiple > with more than 128 nodes. > > It just hold, with no error message. > > What do you think? What can I try to understand the problem. > > Thanks, > > Federico > > > > > 2010/2/26 Ralph Castain <r...@open-mpi.org> > No known limitations of which we are aware...the variables are all set to > int32_t, so INT32_MAX would be the only limit I can imagine. In which case, > you'll run out of memory long before you hit it. > > > 2010/2/26 Federico Golfrè Andreasi <federico.gol...@gmail.com> > HI ! > > have you ever did some analysis to understand if there is a limitation in the > number of nodes usable with OpenMPI-v1.4 ? > Using also the functions MPI_Comm_spawn o MPI_Comm_spawn_multiple. > > Thanks, > Federico > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
