Holding job
Sometimes you may want to submit a job but not have it run just yet. You may be wanting to allow lab mates to cut in front of you in the queue - so hold the job until their jobs have started, and then release yours.
To place a hold on a job before it starts running, use the scontrol hold job command:
Once a job has started running it can not be placed on hold.
To release a hold on a job, use the scontrol release job command: