• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Accelerating astrophysical magnetohydrodynamic simulations using advanced techniques

Research Project

Project/Area Number 16K13786
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Astronomy
Research InstitutionOsaka University

Principal Investigator

Tomida Kengo  大阪大学, 理学研究科, 招へい教員 (70772367)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords宇宙物理学 / シミュレーション / 磁気流体力学 / 偏微分方程式 / 計算物理学 / 数値シミュレーション / 宇宙物理 / 計算物理 / 理論天文学 / 流体
Outline of Final Research Achievements

Athena++ is a new public magnetohydrodynamic simulation code which I develop in collaboration with Princeton University and others. In this project, I optimized the code to achieve better performance and also implemented new physics modules including self-gravity. The code achieves good performance and scalability even with more than half a million threads thanks to the new parallelization based on dynamical scheduling as well as thorough optimization to modern architectures. I implemented a new self-gravity solver based on the Full Multigrid method, which is very efficient and scalable. The code and documentation are publicly distributed on the Internet, and we held schools on computational astrophysics and a users' meeting.

Academic Significance and Societal Importance of the Research Achievements

Athena++は輻射磁気流体シミュレーションコードであり、インターネット上で広く一般に公開している。自己重力ソルバを始めとしてAthena++は宇宙物理学の幅広い問題に共通する基礎物理過程を幅広くサポートしており、コードを公開することでコミュニティに貢献している。また本コードを用いた講習会やユーザーズミーティングも開催しており、若手研究者の育成にも重要な役割を果たしている。また優れたシミュレーションコードは現在の宇宙物理学研究のインフラストラクチャと言えるものであり、国際的な共同研究の基盤ともなる。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (35 results)

All 2020 2019 2018 2017 2016 Other

All Int'l Joint Research (4 results) Journal Article (7 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (17 results) (of which Int'l Joint Research: 8 results,  Invited: 9 results) Remarks (7 results)

  • [Int'l Joint Research] Princeton University/Institute for Advanced Study/University of Virginia(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Princeton University/University of Nevada, Las Vegas/University of Virginia(米国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] Princeton University/University of California(米国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] プリンストン大学/ネヴァダ大学ラスベガス校/カリフォルニア大学バークレー校(米国)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Acceleration and escape processes of high-energy particles in turbulence inside hot accretion flows2019

    • Author(s)
      Kimura Shigeo S、Tomida Kengo、Murase Kohta
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 485 Issue: 1 Pages: 163-178

    • DOI

      10.1093/mnras/stz329

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Giant Protostellar Flares: Accretion-driven Accumulation and Reconnection-driven Ejection of Magnetic Flux in Protostars2019

    • Author(s)
      Takasao Shinsuke、Tomida Kengo、Iwasaki Kazunari、Suzuki Takeru K.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 878 Issue: 1 Pages: L10-L10

    • DOI

      10.3847/2041-8213/ab22bb

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nonideal MHD Simulation of HL Tau Disk: Formation of Rings2019

    • Author(s)
      Hu, X., Zhu, Z., Okuzumi, S., Bai, X.-N., Wang, L., Tomida, K., & Stone, J. M.
    • Journal Title

      The Astrophysical Journal

      Volume: 885 Issue: 1 Pages: 36-36

    • DOI

      10.3847/1538-4357/ab44cb

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Disc formation in magnetized dense cores with turbulence and ambipolar diffusion2019

    • Author(s)
      Lam Ka Ho、Li Zhi-Yun、Chen Che-Yu、Tomida Kengo、Zhao Bo
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 489 Issue: 4 Pages: 5326-5347

    • DOI

      10.1093/mnras/stz2436

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Early Stage of Molecular Cloud Formation by Compression of Two-phase Atomic Gases2019

    • Author(s)
      Iwasaki, Kazunari; Tomida, Kengo; Inoue, Tsuyoshi; Inutsuka, Shu-ichiro
    • Journal Title

      The Astrophysical Journal

      Volume: 873 Issue: 1 Pages: 21-27

    • DOI

      10.3847/1538-4357/ab02ff

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] A Three-dimensional Simulation of a Magnetized Accretion Disk: Fast Funnel Accretion onto a Weakly Magnetized Star2018

    • Author(s)
      Takasao Shinsuke、Tomida Kengo、Iwasaki Kazunari、Suzuki Takeru K.
    • Journal Title

      The Astrophysical Journal

      Volume: 857 Issue: 1 Pages: 4-4

    • DOI

      10.3847/1538-4357/aab5b3

    • Related Report
      2018 Research-status Report 2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Parametric Study of the Rossby Wave Instability in a Two-dimensional Barotropic Disk. II. Nonlinear Calculations2018

    • Author(s)
      Ono Tomohiro、Muto Takayuki、Tomida Kengo、Zhu Zhaohuan
    • Journal Title

      The Astrophysical Journal

      Volume: 864 Issue: 1 Pages: 70-70

    • DOI

      10.3847/1538-4357/aad54d

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Multigrid gravity solver on AMR for Athena++2020

    • Author(s)
      富田賢吾
    • Organizer
      令和元年度 国立天文台 天文シミュレーションプロジェクト ユーザーズミーティング
    • Related Report
      2019 Annual Research Report
  • [Presentation] Formation and Early Evolution of Protoplanetary Disks2019

    • Author(s)
      Kengo Tomida
    • Organizer
      Workshop on Star Formation
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Formation and Early Evolution of Circumstellar Disks2019

    • Author(s)
      Kengo Tomida
    • Organizer
      Zooming in on Star Formation
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Global Non-ideal Magnetohydrodynamic Simulations of Protoplanetary Disks2019

    • Author(s)
      K. Tomida, K. Iwasaki, S. Takasao, S. Okuzumi, S. Mori, T. K. Suzuki
    • Organizer
      CCS International Symposium 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] MHD Simulations with Athena++: from Molecular Clouds to Protoplanetary Disks2019

    • Author(s)
      Kengo Tomida
    • Organizer
      Max Planck Princeton Center Workshop 2019
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Inside Athena++2019

    • Author(s)
      Kengo Tomida
    • Organizer
      Athena++ Users and Developers Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Global Non-ideal MHD Simulations of Protoplanetary Disks with Athena++2019

    • Author(s)
      Kengo Tomida
    • Organizer
      国立天文台CfCAユーザーズミーティング
    • Related Report
      2018 Research-status Report
  • [Presentation] Formation of Protostars and Protoplanetary Disks- theoretical aspects of Core2Disk2018

    • Author(s)
      Kengo Tomida
    • Organizer
      FROM PRESTELLAR CORES TO SOLAR NEBULAE
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Formation of circumstellar disks and non-ideal magnetohydrodynamic effects2018

    • Author(s)
      Kengo Tomida
    • Organizer
      High Energy Density Laboratory Astrophysics
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Athena++: a New MHD Simulation Code with Adaptive Mesh Refinement2018

    • Author(s)
      Kengo Tomida
    • Organizer
      The 8th East Asian Numerical Astrophysics Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of a Full-Multigrid Gravity Solver for Athena++2018

    • Author(s)
      Kengo Tomida, Kazunari Iwasaki, James M. Stone
    • Organizer
      日本天文学会 2018年春季年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Athena++による磁気流体シミュレーション2017

    • Author(s)
      富田賢吾、岩崎一成、高棹真介、奥住聡、James M. Stone
    • Organizer
      ポスト「京」時代の天体形成シミュレーション研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] 原始惑星系円盤の形成と初期進化2017

    • Author(s)
      富田賢吾
    • Organizer
      宇宙生命計算科学連携拠点第3回ワークショップ
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Athena++による大規模宇宙磁気流体シミュレーション2017

    • Author(s)
      富田賢吾、James M. Stone
    • Organizer
      PLASMA2017
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Development of Full-Multigrid Gravity Solver for Athena++2017

    • Author(s)
      富田賢吾
    • Organizer
      国立天文台CfCAユーザーズミーティング
    • Related Report
      2017 Research-status Report
  • [Presentation] MHD Simulations of Protoplanetary Disks with Athena++2017

    • Author(s)
      富田賢吾、高棹真介、岩崎一成、James M. Stone、Zhaohuan Zhu、Xuening Bai
    • Organizer
      ポスト「京」萌芽的課題・計算惑星 第1回 公開シンポジウム
    • Place of Presentation
      神戸大学
    • Related Report
      2016 Research-status Report
  • [Presentation] Current Status of Athena++2016

    • Author(s)
      富田賢吾
    • Organizer
      国立天文台CfCAユーザーズミーティング
    • Place of Presentation
      国立天文台
    • Related Report
      2016 Research-status Report
  • [Remarks] Athena++

    • URL

      https://princetonuniversity.github.io/athena/

    • Related Report
      2019 Annual Research Report
  • [Remarks] Athena++ 日本語サポートページ

    • URL

      https://www.astr.tohoku.ac.jp/~tomida/athena/

    • Related Report
      2019 Annual Research Report
  • [Remarks] Athena++日本語サポートページ

    • URL

      http://astro-osaka.jp/tomida/athena/

    • Related Report
      2018 Research-status Report
  • [Remarks] Athena++日本語サポートページ

    • URL

      http://vega.ess.sci.osaka-u.ac.jp/~tomida/athena/

    • Related Report
      2017 Research-status Report
  • [Remarks] Athena++ Radiation MHD code

    • URL

      http://princetonuniversity.github.io/athena/

    • Related Report
      2017 Research-status Report
  • [Remarks] Athena++ Radiation MHD Code

    • URL

      http://princetonuniversity.github.io/athena/

    • Related Report
      2016 Research-status Report
  • [Remarks] Athena++ MHD Code 日本語サポートページ

    • URL

      http://vega.ess.sci.osaka-u.ac.jp/~tomida/athena/index.html

    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2022-02-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi