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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/6369de87f4d7-3205-42e5-94c7-2bb501030e03
| Item type | researchmap(1) | |||||||||||||||
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| 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
× Morishita, Koji
× Ishihara, Takashi
× Uno, Atsuya
× 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 |
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| 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 | |||||||||||||||
