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Parallel Performance Characterization of ColumbiaUsing a collection of benchmark problems of increasing levels of realism and computational effort, we will characterize the strengths and limitations of the 10,240 processor Columbia system to deliver supercomputing value to application scientists. Scientists need to be able to determine if and how they can utilize Columbia to carry extreme workloads, either in terms of ultra-large applications that cannot be run otherwise (capability), or in terms of very large ensembles of medium-scale applications to populate response matrices (capacity). We select existing application benchmarks that scale from a small number of processors to the entire machine, and that highlight different issues in running supercomputing-calss applicaions, such as the various types of memory access, file I/O, inter- and intra-node communications and parallelization paradigms. http://www.nas.nasa.gov/Software/NPB/
Document ID
20050182113
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Biswas, Rupak
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2004
Subject Category
Computer Systems
Meeting Information
Meeting: Supercomputing 2004
Location: Pittsburgh, PA
Country: United States
Start Date: November 6, 2004
End Date: November 12, 2004
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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