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Development of stencil calculation and communication model to achieve high scalability on massively parallel computation

Research Project

Project/Area Number 18K11336
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 60100:Computational science-related
Research InstitutionKyoto University

Principal Investigator

FUKAZAWA Keiichiro  京都大学, 学術情報メディアセンター, 准教授 (50377868)

Co-Investigator(Kenkyū-buntansha) 南里 豪志  九州大学, 情報基盤研究開発センター, 准教授 (70284578)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords並列計算 / 高性能計算 / MHDシミュレーション / スケーラビリティ / ステンシル計算 / 超並列計算 / エクサスケール
Outline of Final Research Achievements

The purpose of this study is to develop a stencil calculation and communication model without scalability attenuation in exascale computing environment, and to develop the Halo communication function used there. First, in the stencil simulation, we developed a model that divides threads into "calculation" and "calculation and communication that require communication (including pack / unpack of communication data)". As a result, there is no need for synchronization to know when the communication has ended, and deterioration of parallel performance can be avoided. Then, we summarized a Halo function group from the model so that it could be easily used in other applications. These performances were measured in an environment using 2000 nodes, and high scalability was confirmed.

Academic Significance and Societal Importance of the Research Achievements

近年の計算機はプロセッサ単体の性能を周波数向上が難しいことから上がられず、目に-コア化や並列ノード数増加により性能向上を達成している。この様な中で並列計算時にスケーラビリティが低下すると、並列数増加分の性能向上が得られない。本研究の成果により高並列時にもスケーラビリティが減少しない手法が開発され、近年の計算機をより効率良く利用することが可能となる。
また、ステンシル計算はある空間を扱う計算で用いられる計算であり、スパコンを利用するような大規模計算アプリケーションの大部分を占めるため、幅広い領域へ貢献することが推測され、学術的意義が深い。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (18 results)

All 2022 2021 2020 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (14 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results)

  • [Journal Article] Cross-Reference Simulation by Code-To-Code Adapter (CoToCoA) Library for the Study of Multi-Scale Physics in Planetary Magnetospheres2021

    • Author(s)
      Katoh, Y., K. Fukazawa, T. Nanri and Y. Miyake
    • Journal Title

      2021 Ninth International Symposium on Computing and Networking Workshops (CANDARW)

      Volume: 1 Pages: 223-226

    • DOI

      10.1109/candarw53999.2021.00044

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Application of Cross-Reference Framework CoToCoA to Macro- and Micro-Scale Simulations of Planetary Magnetospheres2019

    • Author(s)
      Fukazawa Keiichiro、Katoh Yuto、Nanri Takeshi、Miyake Yohei
    • Journal Title

      Seventh International Symposium on Computing and Networking Workshops (CANDARW)

      Volume: - Pages: 121-124

    • DOI

      10.1109/candarw.2019.00029

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Performance Evaluation and Optimization of MagnetoHydroDynamic Simulation for Planetary Magnetosphere with Xeon Phi KNL2018

    • Author(s)
      Fukazawa, K., T. Soga, T. Umeda, T. Nanri
    • Journal Title

      Advances in Parallel Computing

      Volume: 1 Pages: 178-187

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] erformance Analysis of CPU and DRAM Power Constrained Systems with Magnetohydrodynamic Simulation Code2018

    • Author(s)
      K. Fukazawa, M. Ueda, Y. Inadomi, M. Aoyagi, T. Umeda and K. Inoue
    • Journal Title

      HPCC

      Volume: 1 Pages: 626-631

    • DOI

      10.1109/hpcc/smartcity/dss.2018.00113

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] "CoToCoA: A Communication-Efficient Framework for Coupling Programs2022

    • Author(s)
      Takeshi Nanri, Yuto Katoh, Keiichiro Fukazawa, Yohei Miyake, Kazuya Nakazawa
    • Organizer
      HPCAsia2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] STP数値計算コードにおける連成計算フレームワークCoToCoAの実装2021

    • Author(s)
      深沢圭一郎、加藤雄人、三宅洋平、南里豪志
    • Organizer
      STEシミュレーション研究会:太陽系シミュレーション研究の新展開
    • Related Report
      2021 Annual Research Report
  • [Presentation] Application of CoToCoA to MHD and micro-scale simulations of the magnetosphere2021

    • Author(s)
      深沢圭一郎、加藤雄人、南里豪志
    • Organizer
      地球電磁気・地球惑星圏学会 第150回総会及び講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 惑星磁気圏MHDシミュレーションコードによるA64FXプロセッサ(FX700)の性能評価2020

    • Author(s)
      深沢圭一郎、三吉郁夫
    • Organizer
      情報処理学会第175回HPC研究会
    • Related Report
      2020 Research-status Report
  • [Presentation] 宇宙プラズマ現象予測モデル開発に向けた機械学習・数値シミュレーション・観測による学習データの整備2020

    • Author(s)
      深沢圭一郎、木村智樹、徳永旭将、中野慎也
    • Organizer
      地球電磁気・地球惑星圏学会 第148回総会及び講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Research of applying the machine learning to space plasma physics with observation and numerical simulation data2020

    • Author(s)
      K. Fukazawa
    • Organizer
      LHAM Keynote in CANDAR2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of cross-reference framework CoToCoA and application to macro- and micro-scale simulations in the space plasma2020

    • Author(s)
      K. Fukazawa, Y. Kato, T. Nanri, Y. Miyake
    • Organizer
      AGU Fall Meeting 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 惑星磁気圏MHDシミュレーションコードによるThunderX2 ARMプロセッサの性能評価2019

    • Author(s)
      深沢圭一郎
    • Organizer
      第172回ハイパフォーマンスコンピューティング研究発表会
    • Related Report
      2019 Research-status Report
  • [Presentation] Development of cross-reference framework for macro- and micro-scale simulations of the magnetosphere2019

    • Author(s)
      深沢圭一郎、加藤雄人、三宅洋平、南里豪志
    • Organizer
      地球電磁気・地球惑星圏学会 第146回総会及び講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] Development of cross-reference numerical simulation framework: macro- and micro-scale simulations of the magnetosphere2019

    • Author(s)
      K. Fukazawa, Y. Katoh, T. Nanri, Y. Miyake
    • Organizer
      Conference on Magnetospheres of the Outer Planets 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of Coupling Framework for Macro and Micro Scale Simulations of the Magnetosphere2019

    • Author(s)
      K. Fukazawa, Y. Katoh, T. Nanri, Y. Miyake
    • Organizer
      AOGS 16th Annual Meeting
    • Related Report
      2019 Research-status Report
  • [Presentation] MHD,VlasovシミュレーションにおけるHalo通信の最適化2018

    • Author(s)
      深沢圭一郎、梅田隆行
    • Organizer
      STEシミュレーション研究会 - プラズマ-大気複合システムのシミュレーション研究 -
    • Related Report
      2018 Research-status Report
  • [Presentation] スーパーコンピュータシステムITOにおけるMHDシミュレーションコードの計算性能・消費電力評価2018

    • Author(s)
      深沢圭一郎、南里豪志、本田宏明
    • Organizer
      第166回ハイパフォーマンスコンピューティング研究発表会
    • Related Report
      2018 Research-status Report
  • [Presentation] Performance Analysis of CPU and DRAM Power Constrained Systems with Magnetohydrodynamic Simulation Code2018

    • Author(s)
      K. Fukazawa, M. UEDA, Y. INADOMI, M. Aoyagi, T. UMEDA, K. INOUE
    • Organizer
      International Conferences on High Performance Computing and Communications 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2023-01-30  

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