On Aug 11, 2009, at 5:17 AM, Ashley Pittman wrote:
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.
FWIW: we use padb for this purpose, and it is very helpful!
Ralph
Ashley,
--
Ashley Pittman, Bath, UK.
Padb - A parallel job inspection tool for cluster computing
http://padb.pittman.org.uk
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