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Findings from G. Utrera et al Has Provided New Information about Supercomputing (Scheduling parallel jobs on multicore clusters using CPU...

July 31, 2014

Findings from G. Utrera et al Has Provided New Information about Supercomputing (Scheduling parallel jobs on multicore clusters using CPU oversubscription)

By a News Reporter-Staff News Editor at Computer Weekly News -- Fresh data on Supercomputing are presented in a new report. According to news originating from Barcelona, Spain, by VerticalNews correspondents, research stated, "Job scheduling strategies in multiprocessing systems aim to minimize waiting times of jobs while satisfying user requirements in terms of number of execution units. However, the lack of flexibility in the requests leaves the scheduler a reduced margin of action for scheduling decisions."

Our news journalists obtained a quote from the research, "Many of such decisions consist on just moving ahead some specific jobs in the wait queue. In this work, we propose a job scheduling strategy that improves the overall performance and maximizes resource utilization by allowing jobs to adapt to variations in the load through CPU oversubscription and backfilling. The experimental evaluations include both real executions on multicore clusters and simulations of workload traces from real production systems."

According to the news editors, the research concluded: "The results show that our strategy provides significant improvements over previous proposals like Gang Scheduling with Backfilling, especially in medium to high workloads with strong variations."

For more information on this research see: Scheduling parallel jobs on multicore clusters using CPU oversubscription. Journal of Supercomputing, 2014;68(3):1113-1140. Journal of Supercomputing can be contacted at: Springer, Van Godewijckstraat 30, 3311 Gz Dordrecht, Netherlands. (Springer -; Journal of Supercomputing -

The news correspondents report that additional information may be obtained from G. Utrera, Barcelona Supercomp Center, Barcelona 08034, Spain. Additional authors for this research include J. Corbalan and J. Labarta.

Keywords for this news article include: Barcelona, Spain, Europe, Supercomputing

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Source: Computer Weekly News

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