Interactive PBS Scripts

You can run PBS scripts interactively if they don't lend themselves to scripting. This will essentially log you into the compute node where you can do what you need, while still being under PBS's management.

% qsub -l nodes=4 -I
qsub: waiting for job 8854.node1 to start
qsub: job 8854.node1 ready

node3:~> mpirun -np 4 -machinefile  $PBS_NODEFILE /home/psmith/mpich/cpi
Process 2 on node11
Process 0 on node3
Process 3 on node12
Process 1 on node3
pi is approximately 3.1416009869231245, Error is 0.0000083333333314
wall clock time = 0.001397
node3:~> logout

qsub: job 8854.node1 completed

This will also let you run your jobs on compute nodes and make it possible to use debuggers, or other processes that don't work so well in batch.