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5.4) Job Scheduling On ARC2: Backfilling


Once the scheduler has allocated resources to the top priority jobs, it then makes use of “backfilling” to run shorter, lower priority jobs. All jobs have specified run time, and so the scheduler will run lower priority jobs if they will start and finish before the highest priority jobs are scheduled to start. Thus indicating a realistic runtime for a job, will make short jobs eligible to be backfilled, potentially shortening their wait-time.