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

  • Sandia National Laboratories, New Mexico
  • University of Illinois at Urbana-Champaign
  • Tufts University
  • Louisiana State University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

51 Scopus citations

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.

Original languageEnglish
Title of host publicationProceedings - IEEE International Conference on Cluster Computing, CLUSTER 2002
EditorsBill Gropp, Rajkumar Buyya, Rob Pennington, Maxine Brown, Mark Baker, Dan Reed
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages296-304
Number of pages9
ISBN (Electronic)0769517455
DOIs
StatePublished - 2002
EventIEEE International Conference on Cluster Computing, CLUSTER 2002 - Chicago, United States
Duration: Sep 23 2002Sep 26 2002

Publication series

NameProceedings - IEEE International Conference on Cluster Computing, ICCC
Volume2002-January
ISSN (Print)1552-5244

Conference

ConferenceIEEE International Conference on Cluster Computing, CLUSTER 2002
Country/TerritoryUnited States
CityChicago
Period09/23/0209/26/02

Keywords

  • Bandwidth
  • Communication switching
  • Computer science
  • Costs
  • Laboratories
  • Processor scheduling
  • Resource management
  • Supercomputers
  • Switches
  • Throughput

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