NDLI: Processor allocation on Cplant: achieving general processor locality using one-dimensional allocation strategies

Content Provider	IEEE Xplore Digital Library
Author	Leung, V.J. Arkin, E.M. Bender, Ma. Bunde, D. Johnston, J. Lal, Alok Mitchell, J.S.B. Phillips, C. Seiden, S.S.
Copyright Year	2002
Description	Author affiliation: Sandia Nat. Lab., Albuquerque, NM, USA (Leung, V.J.)
Abstract	The Computational Plant or Cplant is a commodity-based supercomputer under development at Sandia National Laboratories. This paper describes resource-allocation strategies to achieve processor locality for parallel jobs in Cplant and other supercomputers. Users of Cplant and other Sandia supercomputers submit parallel jobs to a job queue. When a job is scheduled to run, it is assigned to a set of processors. To obtain maximum throughput, jobs should be allocated to localized clusters of processors to minimize communication costs and to avoid bandwidth contention caused by overlapping jobs. This paper introduces new allocation strategies and performance metrics based on space-filling curves and one dimensional allocation strategies. These algorithms are general and simple. Preliminary simulations and Cplant experiments indicate that both space-filling curves and one-dimensional packing improve processor locality compared to the sorted free list strategy previously used on Cplant. These new allocation strategies are implemented in the new release of the Cplant System Software, Version 2.0, phased into the Cplant systems at Sandia by May 2002.
Sponsorship	IEEE Comput. Soc. Task Force on Cluster Comput. (TFCC)
Starting Page	296
Ending Page	304
File Size	361790
Page Count	9
File Format	PDF
ISBN	0769520669
DOI	10.1109/CLUSTR.2002.1137758
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-09-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Supercomputers Processor scheduling Laboratories Computer science Bandwidth Switches Throughput Costs Resource management Communication switching
Content Type	Text
Resource Type	Article

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