Compressed fields in the POOMA framework: Design, implementation, and performance

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The POOMA framework is a C++ class library for doing large scale parallel computations. POOMA`s Field class implements a multidimensional data parallel array annotated with mesh coordinate information. The Field class breaks up the whole domain into sub-blocks and transparently compresses constant blocks down to a single value to improve the memory and computational efficiency. This allows the user to simply and efficiently simulate phenomena that are taking place in a small fraction of the domain. We examine the cache and computational benefits associated with this capability. The algorithm implementation is based on the fact that if we have a ... continued below

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8 p.

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Bassetti, F.; Karmesin, S.; Williams, T. & Reynders, J. December 31, 1998.

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Description

The POOMA framework is a C++ class library for doing large scale parallel computations. POOMA`s Field class implements a multidimensional data parallel array annotated with mesh coordinate information. The Field class breaks up the whole domain into sub-blocks and transparently compresses constant blocks down to a single value to improve the memory and computational efficiency. This allows the user to simply and efficiently simulate phenomena that are taking place in a small fraction of the domain. We examine the cache and computational benefits associated with this capability. The algorithm implementation is based on the fact that if we have a large constant region in the field we only need to store one value for that region. In this paper we will describe the design of compressed fields, their implementation in the POOMA framework, and the performance of this technique on an Silicon Graphics Inc. Origin 2000.

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8 p.

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OSTI as DE98001571

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  • Other Information: PBD: [1998]

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  • Other: DE98001571
  • Report No.: LA-UR--97-3890
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/562477 | External Link
  • Office of Scientific & Technical Information Report Number: 562477
  • Archival Resource Key: ark:/67531/metadc690999

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  • December 31, 1998

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Feb. 25, 2016, 2:10 p.m.

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Bassetti, F.; Karmesin, S.; Williams, T. & Reynders, J. Compressed fields in the POOMA framework: Design, implementation, and performance, report, December 31, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc690999/: accessed November 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.