Performance Evaluation and Optimization of MagnetoHydroDynamic Simulation for Planetary Magnetosphere with Xeon Phi KNL

Keiichiro Fukazawa, Takeshi Soga, Takayuki Umeda, Takeshi Nanri

    研究成果: Chapter in Book/Report/Conference proceedingChapter

    抄録

    The magnetohydrodynamic (MHD) simulation is often applied to study the global dynamics and configuration of a planetary magnetosphere for the space weather. In this paper, the computational performance of MHD code is evaluated with 128 nodes Xeon Phi KNL of Cray XC40. As the results, the 2D and 3D domain decompositions of SoA (structure of array) make the effective performances and AoS (array of structure) and hybrid parallel computation become low performances. Adding the performance optimizations for Xeon Phi to our MHD simulation code, then we have obtained 2.4 % increase of execution efficiency in total and we achieved 3 TFlops performance gain using 128 nodes.

    本文言語英語
    ホスト出版物のタイトルParallel Computing is Everywhere
    編集者Gerhard R. Joubert, Patrizio Dazzi, Frans Peters, Marco Danelutto, Sanzio Bassini
    出版社IOS Press BV
    ページ178-187
    ページ数10
    ISBN(電子版)9781614998426
    DOI
    出版ステータス出版済み - 2018

    出版物シリーズ

    名前Advances in Parallel Computing
    32
    ISSN(印刷版)0927-5452
    ISSN(電子版)1879-808X

    All Science Journal Classification (ASJC) codes

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