Updated 2021-01-11

Interactive Compute Sessions

There are two possible methods to gain an interactive session on the compute nodes.

The PBS directives used below are the same as the batch PBS jobs. See the PBS Scripting Guide for explanations of the PBS directives.

Manual qsub submission

An interactive session can be create using the -I flag with a set of PBS directives. As an example,

$ qsub -l walltime=02:00:00 -l nodes=2:ppn=4 -l pmem=1gb -q inferno -I

creates a session for 2 hours for 2 nodes with 4 processors apiece.

pace-interact session

The pace-interact command wraps the request for an interactive session. The usage of the command is

$ pace-interact -q inferno -l nodes=1:ppn=4 -l pmem=2gb

The only required option is the -q queue. The default session will be 1 hour with 1 node and 1 processor.