2018年
Performance Evaluation and Optimization of MagnetoHydroDynamic Simulation for Planetary Magnetosphere with Xeon Phi KNL
Advances in Parallel Computing
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- ,
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- 巻
- 32
- 号
- 開始ページ
- 178
- 終了ページ
- 187
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.3233/978-1-61499-843-3-178
- 出版者・発行元
- IOS Press BV
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.
- リンク情報
- ID情報
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- DOI : 10.3233/978-1-61499-843-3-178
- ISSN : 1879-808X
- ISSN : 0927-5452
- DBLP ID : conf/parco/FukazawaSUN17
- SCOPUS ID : 85043570970