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Analyzing the Parallel Scalability of an Implicit Unstructured Mesh CFD Code

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High Performance Computing — HiPC 2000 (HiPC 2000)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 1970))

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Abstract

In this paper, we identify the scalability bottlenecks of an unstructured grid CFD code (PETSc-FUN3D) by studying the impact of several algorithmic and architectural parameters and by examiningdif ferent programmingmodels. We discuss the basic performance characteristics of this PDE code with the help of simple performance models developed in our earlier work, presentingprimarily experimental results. In addition to achievingg ood per-processor performance (which has been addressed in our cited work and without which scalability claims are suspect) we strive to improve the implementation and convergence scalability of PETSc-FUN3D on thousands of processors.

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Author information

Authors and Affiliations

  1. ISCR, Lawrence Livermore National Laboratory, 94551, Livermore, CA

    W. D. Gropp, D. K. Kaushik, D. E. Keyes & B. F. Smith

  2. ICASE, NASA Langley Research Center, 23681, Hampton, VA

    W. D. Gropp, D. K. Kaushik, D. E. Keyes & B. F. Smith

  3. Math. & Comp. Sci. Division, Argonne National Laboratory, 60439, Argonne, IL

    W. D. Gropp, D. K. Kaushik & B. F. Smith

  4. Math. & Stat. Department, Old Dominion University, 23529, Norfolk, VA

    D. E. Keyes

Authors
  1. W. D. Gropp
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  2. D. K. Kaushik
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  3. D. E. Keyes
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  4. B. F. Smith
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Editor information

Editors and Affiliations

  1. DAC-UPC,Computer Architecture Department, Technical University of Catalonia, Campus Nord,D6,Jordi Girona,1-3, Barcelona, Spain

    Mateo Valero

  2. Department of EE-Systems Computer Engineering Division, University of Southern California, 3740 McClintok Ave,EEB 200C, 90089-2562, Los Angeles, CA, USA

    Viktor K. Prasanna

  3. Indian Institute of Science, Sir C.V.Raman Avenue, 560012, Bangalore, India

    Sriram Vajapeyam

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© 2000 Springer-Verlag Berlin Heidelberg

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Gropp, W.D., Kaushik, D.K., Keyes, D.E., Smith, B.F. (2000). Analyzing the Parallel Scalability of an Implicit Unstructured Mesh CFD Code. In: Valero, M., Prasanna, V.K., Vajapeyam, S. (eds) High Performance Computing — HiPC 2000. HiPC 2000. Lecture Notes in Computer Science, vol 1970. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-44467-X_36

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  • DOI: https://doi.org/10.1007/3-540-44467-X_36

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-41429-2

  • Online ISBN: 978-3-540-44467-1

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