On Tue, 2009-08-11 at 03:03 -0600, Ralph Castain wrote: > If it isn't already there, try putting a print statement tight at > program start, another just prior to MPI_Init, and another just after > MPI_Init. It could be that something is hanging somewhere during > program startup since it sounds like everything is launching just > fine.
If you suspect a hang then you can use the command orte-ps (on the node where the mpirun is running) and it should show you your job. This will tell you if the job is started and still running or if there was a problem launching. If the program did start and has really hung then you can get more in-depth information about it using padb which is linked to in my signature. Ashley, -- Ashley Pittman, Bath, UK. Padb - A parallel job inspection tool for cluster computing http://padb.pittman.org.uk