On Tue, 13 Feb 2007 12:27:07 -0700, Ralph H Castain <r...@lanl.gov> wrote:
Oh, I should have made something clear - I believe those command line
options aren't available in the 1.1 series. You'll have to upgrade to 1.2
(available in beta at the moment).
Actually, that isn't the complete story. Open MPI will automatically
run in
several ways:
1. one proc in each available slot on every node in your allocation:
just
don't include -np on your command line. You can rank them by slot
(--byslot
or leave out) or by node (--bynode).
2. one proc on each node in your allocation: use --pernode on your
command
line. You can limit the number of nodes used by combining --pernode
with -np
<foo> - we will launch <foo> procs, one per node
3. a specified number of procs on every node: use --npernode <n>.
Again, you
can limit the number of procs launched by combining it with -np and can
rank
by slot or node
This is good to know; for some reason it seemed logical that the batch
scheduler should know how many processes per node, and TM should be able
to get the information. But that's making assumptions...
Thanks!
--
Troy Telford
