If you have several jobs in the queue, and would like certain of them to be prioritized over others, you can set the relative priority of a job by submitting it with:
priorityis a number between -1024 and +1023. A higher number means higher priority. The default priority is 0.
This only affects the priority of a job relative to other jobs owned by you - it does not affect the priority of your job compared to any job belonging to a different user.
job-scriptis the name of your job script
You can also pass -p as a PBS directive within your job script: