National Center for Computational Sciences

Cores on a socket cannot be allocated to multiple jobs. Because the NCCS charges based on what a job makes unavailable to others, a job is charged for an entire socket even if it uses only one core on a socket. To simplify the process, users are required to request an entire socket through PBS. Odd core requests are rejected upon submission.

The cpuhour charge for each job will be as follows:

PBS 'size' * walltime

Jobs that run on XT3 resources will be charged the same as those that run on XT4 resources.

The showusage utility can be used to view your usage from January 01 through midnight of the previous day. For example,

>showusage
 Usage on jaguar:
                                  Project Totals          <userid>
 Project      Allocation        Usage    Remaining          Usage
_________________________|___________________________|_____________
 <YourProj>    2000000   |   123456.78   1876543.22  |     1560.80

The -h option will list more usage details.