Heterogeneous Multi-Computer System:連続体・多粒子系融合型超並列計算機システム  [in Japanese] Heterogeneous Multi - Computer System : A massively parallel processing system combining continuum and particle simulators  [in Japanese]

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Abstract

Heterogeneous Multi-Computer System(HMCS)は、マルチスケールな計算物理シミュレーションを行うために開発された、連続体向け超並列計算機と多粒子系向け超並列計算機を融合した新しい計算機システムである。我々はHMCSのプラットフォームとして、科学技術計算用超並列計算機CP-PACSと、重力計算機専用計算機GRAPE-6を、並列コモディティネットワークによって結合したシステムを開発中である。HMCS では、GRAPE-6 で行われるミクロスコピックな重力多体計算と、CP-PACS で行われるマクロスコピックな輻射流体計算を並列して行い、非常に詳細な計算宇宙物理シミュレーションを実現する。両システムはPIO(Parallelo I/O System) と呼ばれる、コモディティネットワークを用いた並列入出力システムで結合され、各計算タイムステップ毎に、計算対象となる全粒子データを交換し合う。本稿では、HMCSの全体構想・性能予測・実装・予備性能評価及びそれによってもたらされる新しい計算物理学に関して報告する。HMCS (Heterogeneous Multi-Computer System)is a new parallel processing Platform combining massively parallel processors for continuum simulation and particle simulation to realize multi-scale computational physics simulations. We are constructing a Prototype system of HMCS with a general purpose scientific parallel processor CP-PACS and a gravity calculation parallel processor GRAPE-6 connecting them via commodity-base parallel network. On the prototype of HMCS, a micro-scopic gravity calculation on Grape-6 and a macroscopic radiation hydrodynamic calculation on CP-PACS are performed simultaneously to realize very detailed simulation on computational astrophysics. Both systems are connected via parallel network controlling system named PIO (Parallel I/O System). On each time step, all data of particles are exchanged between two systems hiding communication latency with a special algorithm and buffering effect by PIO. In this paper, we report the overall concept of HMCS, predected performance, implementation and preliminary performance evaluation of the system as well as new physics provided by this system.

HMCS (Heterogeneous Multi-Computer System) is a new parallel processing platform combining massively parallel processors for continuum simulation and particle simulation to realize multi-scale computational physics simulations. We are constructing a prototype system of HMCS with a general purpose scientific parallel processor CP-PACS and a gravity calculation parallel processor GRAPE-6 connecting them via commodity-base parallel network. On the prototype of HMCS, a micro-sopic gravity calculation on GRAPE-6 and a macroscopic radiation hydrodynamic calculation on CP-PACS are performed simultaneously to realize very detailed simulation on computational astrophysics. Both systems are connected via parallel network controlling system named PIO (Parallel I/O System). On each time step, all data of particles are exchanged between two systems hiding communication latency with a special algorithm and buffering effect by PIO. In this paper, we report the overall concept of HMCS, predected performance, implementation and preliminary performance evaluation of the system as well as new physics provided by this system.

Journal

  • IPSJ SIG Notes

    IPSJ SIG Notes 2001(102(2001-HPC-088)), 55-60, 2001-10-26

    Information Processing Society of Japan (IPSJ)

References:  5

Codes

  • NII Article ID (NAID)
    110002932561
  • NII NACSIS-CAT ID (NCID)
    AN10463942
  • Text Lang
    JPN
  • Article Type
    Technical Report
  • ISSN
    09196072
  • NDL Article ID
    5973296
  • NDL Source Classification
    ZM13(科学技術--科学技術一般--データ処理・計算機)
  • NDL Call No.
    Z14-1121
  • Data Source
    CJP  NDL  NII-ELS  IPSJ 
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