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  1. 防災科研関係論文

Performance of a Two-Path Aliasing Free Calculation of a Spectral DNS Code

https://nied-repo.bosai.go.jp/records/6369
https://nied-repo.bosai.go.jp/records/6369
de87f4d7-3205-42e5-94c7-2bb501030e03
Item type researchmap(1)
公開日 2023-09-20
タイトル
言語 en
タイトル Performance of a Two-Path Aliasing Free Calculation of a Spectral DNS Code
言語
言語 eng
著者 Yokokawa, Mitsuo

× Yokokawa, Mitsuo

en Yokokawa, Mitsuo

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Morishita, Koji

× Morishita, Koji

en Morishita, Koji

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Ishihara, Takashi

× Ishihara, Takashi

en Ishihara, Takashi

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Uno, Atsuya

× Uno, Atsuya

en Uno, Atsuya

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Kaneda, Yukio

× Kaneda, Yukio

en Kaneda, Yukio

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抄録
内容記述タイプ Other
内容記述 A direct numerical simulation (DNS) code was developed for solving incompressible homogeneous isotropic turbulence with high Reynolds numbers in a periodic box using the Fourier spectral method. The code was parallelized using the Message Passing Interface and OpenMP with two-directional domain decomposition and optimized on the K computer. High resolution DNSs with up to 122883 grid points were performed on the K computer using the code. Efficiencies of 3.84%, 3.14%, and 2.24% peak performance were obtained in double precision DNSs with 61443, 81923, and 122883 grid points, respectively. In addition, a two-path alias-free procedure is proposed and clarified its effectiveness for some number of parallel processes.
言語 en
書誌情報 en : Lecture Notes in Computer Science : Computational Science ? ICCS 2019

巻 11539, p. 587-595, 発行日 2019-06-08
出版者
言語 en
出版者 SPRINGER INTERNATIONAL PUBLISHING AG
ISSN
収録物識別子タイプ EISSN
収録物識別子 1611-3349
DOI
関連識別子 10.1007/978-3-030-22747-0_44
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