Transient Solid Dynamics Simulations on the Sandia/Intel Teraflop Computer

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Transient solid dynamics simulations are among the most widely used engineering calculations. Industrial applications include vehicle crashworthiness studies, metal forging, and powder compaction prior to sintering. These calculations are also critical to defense applications including safety studies and weapons simulations. The practical importance of these calculations and their computational intensiveness make them natural candidates for parallelization. This has proved to be difficult, and existing implementations fail to scale to more than a few dozen processors. In this paper we describe our parallelization of PRONTO, Sandia`s transient solid dynamics code, via a novel algorithmic approach that utilizes multiple decompositions for different ... continued below

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17 p.

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Attaway, S.; Brown, K.; Gardner, D.; Hendrickson, B. & Barragy, T. December 31, 1997.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Transient solid dynamics simulations are among the most widely used engineering calculations. Industrial applications include vehicle crashworthiness studies, metal forging, and powder compaction prior to sintering. These calculations are also critical to defense applications including safety studies and weapons simulations. The practical importance of these calculations and their computational intensiveness make them natural candidates for parallelization. This has proved to be difficult, and existing implementations fail to scale to more than a few dozen processors. In this paper we describe our parallelization of PRONTO, Sandia`s transient solid dynamics code, via a novel algorithmic approach that utilizes multiple decompositions for different key segments of the computations, including the material contact calculation. This latter calculation is notoriously difficult to perform well in parallel, because it involves dynamically changing geometry, global searches for elements in contact, and unstructured communications among the compute nodes. Our approach scales to at least 3600 compute nodes of the Sandia/Intel Teraflop computer (the largest set of nodes to which we have had access to date) on problems involving millions of finite elements. On this machine we can simulate models using more than ten- million elements in a few tenths of a second per timestep, and solve problems more than 3000 times faster than a single processor Cray Jedi.

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17 p.

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OSTI as DE98000329

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  • Supercomputing `97: high performance networking and computing, San Jose, CA (United States), 15-21 Nov 1997

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  • Other: DE98000329
  • Report No.: SAND--97-2047C
  • Report No.: CONF-971138--
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 622546
  • Archival Resource Key: ark:/67531/metadc694821

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  • December 31, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • April 14, 2016, 1:53 p.m.

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Attaway, S.; Brown, K.; Gardner, D.; Hendrickson, B. & Barragy, T. Transient Solid Dynamics Simulations on the Sandia/Intel Teraflop Computer, article, December 31, 1997; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc694821/: accessed November 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.