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Performance Evaluation of a Next-Generation CFD on Various Supercomputing Systems

In: Sustained Simulation Performance 2012

Author

Listed:
  • Kazuhiko Komatsu

    (Tohoku University/JST CREST, Cyberscience Center)

  • Takashi Soga

    (NEC System Technologies, Ltd.)

  • Ryusuke Egawa

    (Tohoku University/JST CREST, Cyberscience Center)

  • Hiroyuki Takizawa

    (Tohoku University/JST CREST, Graduate School of Information Sciences)

  • Hiroaki Kobayashi

    (Tohoku University/JST CREST, Cyberscience Center)

Abstract

The Building-Cube Method (BCM) has been proposed as a new CFD method for an efficient three-dimensional flow simulation on large-scale supercomputing systems, and is based on equally-spaced Cartesian meshes. As a flow domain can be divided into equally-partitioned cells due to the equally-spaced meshes, the flow computations can be divided to partial computations of the same computational cost. To achieve a high sustained performance, architecture-aware implementations and optimizations considering characteristics of supercomputing systems are essential because there have been various types of supercomputing systems such as a scalar type, a vector type, and an accelerator type. This paper discusses the architecture-aware implementations and optimizations for various supercomputing systems such as an Intel Nehalem-EP cluster, an Intel Nehalem-EX cluster, Fujitsu FX-1, Hitachi SR16000 M1, NEC SX-9, and a GPU cluster, and analyses their sustained performance for BCM. The performance analysis shows that memory and network capabilities largely affect the performance of BCM rather than computational potentials.

Suggested Citation

  • Kazuhiko Komatsu & Takashi Soga & Ryusuke Egawa & Hiroyuki Takizawa & Hiroaki Kobayashi, 2013. "Performance Evaluation of a Next-Generation CFD on Various Supercomputing Systems," Springer Books, in: Michael M. Resch & Xin Wang & Wolfgang Bez & Erich Focht & Hiroaki Kobayashi (ed.), Sustained Simulation Performance 2012, edition 127, pages 123-132, Springer.
    • Handle: RePEc:spr:sprchp:978-3-642-32454-3_11
    DOI: 10.1007/978-3-642-32454-3_11
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