Parallel Scaling Characteristics of Selected NERSC User ProjectCodes

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This report documents parallel scaling characteristics of NERSC user project codes between Fiscal Year 2003 and the first half of Fiscal Year 2004 (Oct 2002-March 2004). The codes analyzed cover 60% of all the CPU hours delivered during that time frame on seaborg, a 6080 CPU IBM SP and the largest parallel computer at NERSC. The scale in terms of concurrency and problem size of the workload is analyzed. Drawing on batch queue logs, performance data and feedback from researchers we detail the motivations, benefits, and challenges of implementing highly parallel scientific codes on current NERSC High Performance Computing systems. ... continued below

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Skinner, David; Verdier, Francesca; Anand, Harsh; Carter,Jonathan; Durst, Mark & Gerber, Richard March 5, 2005.

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Description

This report documents parallel scaling characteristics of NERSC user project codes between Fiscal Year 2003 and the first half of Fiscal Year 2004 (Oct 2002-March 2004). The codes analyzed cover 60% of all the CPU hours delivered during that time frame on seaborg, a 6080 CPU IBM SP and the largest parallel computer at NERSC. The scale in terms of concurrency and problem size of the workload is analyzed. Drawing on batch queue logs, performance data and feedback from researchers we detail the motivations, benefits, and challenges of implementing highly parallel scientific codes on current NERSC High Performance Computing systems. An evaluation and outlook of the NERSC workload for Allocation Year 2005 is presented.

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  • Report No.: LBNL/PUB--904-(2006)
  • Report No.: LBNL/PUB-904
  • Grant Number: DE-AC02-05CH11231
  • DOI: 10.2172/885226 | External Link
  • Office of Scientific & Technical Information Report Number: 885226
  • Archival Resource Key: ark:/67531/metadc874199

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  • March 5, 2005

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  • Sept. 21, 2016, 2:29 a.m.

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  • Sept. 29, 2016, 3:42 p.m.

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Skinner, David; Verdier, Francesca; Anand, Harsh; Carter,Jonathan; Durst, Mark & Gerber, Richard. Parallel Scaling Characteristics of Selected NERSC User ProjectCodes, report, March 5, 2005; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc874199/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.