Re-evaluating Reservation Policies for Backfill Scheduling on Parallel Systems

S.-H. Chiang and C. Fu (USA)


Scheduling, backfill, reservation, workload analysis.


On parallel systems, jobs that request a large fraction of the maximum resources available on the system may in cur poor wait time. This paper evaluates whether giving a reservation to every waiting job can improve large jobs without significantly degrading the performance of other jobs. Using a wide range of workloads, including more re cent workloads than SP2 workloads, and a more complete set of performance measures than in previous studies, we provide new observations of potential benefit and problem of reservation policies that give all jobs a reservation.

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