[torqueusers] PBS nodes:ppn

[Samir Khanal]

Hi
I have been trying this for 3 hours on different combinations but no success.
I have 6 quad cores and i need to run a prog on 1 core per compute node

i tried 

#PBS -l nodes=4:ppn=1
cat `$PBS_NODEFILE`

the program runs on a single node utilizing all the cores.

I am using MPIEXEC

my submission file looks like

#PBS -l walltime=1:00:00
#PBS -N my_job
#PBS -j oe
#PBS -l nodes=4:ppn=1
echo `hostname`
#echo Directory is `pwd`
#echo This job is running on following Processors
echo `cat $PBS_NODEFILE`
time mpiexec ./bgtw1


My server_priv/nodes file looks like

compute-0-0 np=4
compute-0-1 np=4
compute-0-2 np=4
compute-0-3 np=4
compute-0-4 np=4
compute-0-5 np=4
comet       np=8

#The program always runs on compute-0-5 

One more question:
How do enable the submit maching (comet in my case) to execute jobs?
I have enabled pbs_mom but it still appears "down"

comet
     state = down
     np = 8
     ntype = cluster

Thanks
Samir