Increasing the priority of a job

To increase the priority of a job, use the command nsc-boost-priority command on the login node. nsc-boost-priority --help will show the available options.

Example: check the cost of increasing the priority of a job

[x_makro@tetralith1 ~]$ nsc-boost-priority -c 14399940
The cost for boosting the priority of job 14399940 is 80.0 tokens
Project nsc-guest has 29634.8 tokens available

Example: increase the priority of a job

[x_makro@tetralith1 ~]$ nsc-boost-priority 14399940
Your job's priority has been boosted. The cost of this operation was 80.0 tokens.
Project nsc-guest now has 29554.8 tokens available

A boosted job will have a higher priority than all normal jobs.

Boosted jobs are not affected by the “QOSUsageThreshold” limit and do not affect the project’s future fair-share priority. I.e they are run “for free” (but will show up in projinfo and SUPR).

You can only boost “normal” jobs. Some clusters have nodes reserved for test and development or other special setups. Due to a job scheduler limitation, you can not boost the priority of such jobs. If you try, you will get an error message but no tokens will be charged.

Cost

The base cost of boosting the priority of a job is currently 10 tokens per core hour¹ (e.g boosting the priority of a job that requests 16 cores for one hour costs 160 tokens).