On Feb 13, 2007, at 12:55 PM, Troy Telford wrote:
First, the good news:
I've recently tried PBS Pro 8 with Open MPI 1.1.4.
At least with PBS Pro version 8, you can (finally) do a dynamic/shared
object for the TM module, rather than having to compile everything
statically. (So the FAQ needs a minor update.) The jobs seem to
run and
use TM properly.
Good,
The bad news:
My memory is a bit fuzzy on how to use OMPI with PBS and cousins.
Sad, I
know, but that doesn't make it any less true.
Make sure your OMPI build used --with-tm=/path/to/pbs
You can also use ompi_info and grep for tm.
For the moment, I've read the FAQ and see that you need to use the
'-np
<foo>' option to specify the number of processes. For some reason, I
recall that OMPI used to be able to get the number of processes to run
from PBS; am I just 'remembering' something that never existed?
To my memory this has never been the case. there is $PBS_NODEFILE
which you can wrap around:
CPUS=`cat $PBS_NODEFILE | wc -l`
mpirun -np $CPUS myexe
--
Troy Telford
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Brock Palen
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