The Callisto cluster uses the Portable Batch System, or PBS, for job submission and management. A cluster user submits a script file to PBS that contains information about the job, such as the number of processors to use and the time for the job to run, and information about the program to run, including the executable name and other options for the executable.
Sample PBS scripts will be posted in the future.
To determine the availability of the computational resources on the Callisto cluster, a cluster user can view the current jobs in the PBS queue by typing "showq" or "qstat". The cluster utilization can also be viewed as http://localhost/ganglia via a Firefox browser launched within the Callisto cluster (i.e., logging into the Callisto cluster and launching Firefox by typing "firefox &")