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Optimization of building-ground coupled seismic motion analysis code on parallel system with mutli-core processors

Research Project

Project/Area Number 18K11325
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 60090:High performance computing-related
Research InstitutionKobe University

Principal Investigator

Yokokawa Mitsuo  神戸大学, システム情報学研究科, 教授 (70358307)

Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords地震動応答シミュレーション / 部分前処理付き共役勾配法 / 並列ベクトル計算 / ハイブリッド並列計算 / SX-Aurora TSUBSA / PSCCG法 / 並列計算 / ベクトル計算 / マルチコアシステム / 並列処理 / 連成地震動解析シミュレーション
Outline of Final Research Achievements

A simulation code for analyzing seismic response of the ground and buildings has been vectorized and parallelized on SX-Aurora TSUBASA which consists of an x86 host server (VH) and one or more vector engines (VEs). Approximately 3.5 times speedup was obtained for the calculation time of one time step by hybrid parallel calculation of the code with an MPI process with 8 threads on the VH and two processes (4 threads for each) on the VEs.

Academic Significance and Societal Importance of the Research Achievements

建築物の耐震性評価のためには,地盤と建物の地震動応答を求める数値シミュレーションがが行われている.地震動に対する精確なデータを得るためには,広い地盤領域と詳細に表現された建物データを用いる必要があるが,解析対象をより詳細にすると計算時間が大きくなる.このシミュレーションコードの主要な計算部分は,大規模かつ疎な対称行列を係数とする連立一次方程式の解法であり,この部分の高速が必要とされている.本課題では,コードの改良とベクトル型並列計算機システムを用いた計算により,シミュレーション時間が短縮できることを示した.これにより規模が大きく詳細な解析を行えることが明らかとなった.

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (8 results)

All 2022 2021 2020 2019 2018

All Journal Article (4 results) (of which Open Access: 3 results) Presentation (4 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Optimizations of DNS Codes for Turbulence on SX-Aurora TSUBASA,2021

    • Author(s)
      Y. Takenaka, M. Yokokawa, T. Ishihara, K. Komatsu, and H. Kobayashi
    • Journal Title

      Sustained Simulation Performance 2019 and 2020

      Volume: 2019 and 2020 Pages: 51-59

    • DOI

      10.1007/978-3-030-68049-7_4

    • ISBN
      9783030680480, 9783030680497
    • Related Report
      2020 Research-status Report
    • Open Access
  • [Journal Article] 建物・地盤地震応答シミュレーションのベクトル計算機向け最適化2020

    • Author(s)
      後藤啓,横川三津夫,坂敏秀,小松一彦,小林広明
    • Journal Title

      情報処理学会研究報告ハイパフォーマンスコンピューティング(HPC)

      Volume: 2020-HPC-173

    • Related Report
      2019 Research-status Report
    • Open Access
  • [Journal Article] Affecting the relaxation parameter in the multifrontal method2020

    • Author(s)
      T. Nakano, M. Yokokawa, Y. Yamamoto, and T. Fukaya
    • Journal Title

      Sustatined Simulation Performance 2018 and 2019

      Volume: 2018 and 2019 Pages: 215-224

    • DOI

      10.1007/978-3-030-39181-2_17

    • ISBN
      9783030391805, 9783030391812
    • Related Report
      2019 Research-status Report
  • [Journal Article] 建物の地震動応答シミュレーションに現れる前処理付き共役勾配法の並列化2018

    • Author(s)
      後藤啓,横川三津夫,坂敏秀
    • Journal Title

      情報処理学会研究報告ハイパフォーマンスコンピューティング(HPC)

      Volume: 2018-HPC-167 (28) Pages: 1-5

    • Related Report
      2018 Research-status Report
    • Open Access
  • [Presentation] On the performance of a DNS code for compressible turbulent flows2022

    • Author(s)
      M. Yokokawa, T. Ishihara, and Y. Sakurai
    • Organizer
      The 34th Workshop on Sustained Simulation Performance
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Direct Numerical Simulation of Turbulence Using File I/O Functions2022

    • Author(s)
      Yokokawa, Mitsuo
    • Organizer
      The 32nd Workshop on Sustained Simulation Performance
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Hybrid Computation on Building Responses against Earthquakes on a VH and VEs of SX-Aurora TSUBASA2021

    • Author(s)
      M. Yokokawa
    • Organizer
      Workshop on Sustained Simulation Performance 2021
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Performance of Acceleated and Asynchronous I/O on SX-Aurora TSUBASA2019

    • Author(s)
      M. Yokokawa
    • Organizer
      Workbench on Sustatined Simulation Performance
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2024-01-30  

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