Performance measurements of MHD simulation for planetary magnetosphere on peta-scale computer FX10

Keiichiro Fukazawa, Takeshi Nanri, Takayuki Umeda

研究成果: 著書/レポートタイプへの貢献会議での発言

2 引用 (Scopus)

抄録

Magnetohydrodynamic (MHD) simulations are often applied to study the global dynamics and configuration of the planetary magnetosphere. The computational performance of an MHD code is evaluated on a massive parallel scalar type supercomputer system with one PFlops ideal performance. We have made the performance tuning of our three-dimensional MHD code for the planetary magnetosphere on the FX10 which has 76,800 cores, distributed on 4,800 SPARC64 IXfx nodes. For the parallelization of the MHD code, we use four different methods, i.e. one-dimensional, two-dimensional, three-dimensional regular domain decomposition methods and a cache-hit type of three-dimensional domain decomposition method. We found that the cache-hit type of three-dimensional decomposition of the MHD model is suitable for the FX10 system. We also found the pack/unpack operation for the inter-node communications decreases the execution efficiency by 2 %. After asynchronous communication is introduced and the pack/unpack operation is overlapped, we achieved a computing performance of 230 TFlops and an efficiency of almost 20 % for the MHD code.

元の言語英語
ホスト出版物のタイトルParallel Computing
ホスト出版物のサブタイトルAccelerating Computational Science and Engineering (CSE)
出版者IOS Press BV
ページ387-394
ページ数8
ISBN(印刷物)9781614993803
DOI
出版物ステータス出版済み - 1 1 2014

出版物シリーズ

名前Advances in Parallel Computing
25
ISSN(印刷物)0927-5452

Fingerprint

Magnetosphere
Magnetohydrodynamics
Domain decomposition methods
Supercomputers
Communication
Tuning
Decomposition

All Science Journal Classification (ASJC) codes

  • Computer Science(all)

これを引用

Fukazawa, K., Nanri, T., & Umeda, T. (2014). Performance measurements of MHD simulation for planetary magnetosphere on peta-scale computer FX10. : Parallel Computing: Accelerating Computational Science and Engineering (CSE) (pp. 387-394). (Advances in Parallel Computing; 巻数 25). IOS Press BV. https://doi.org/10.3233/978-1-61499-381-0-387

Performance measurements of MHD simulation for planetary magnetosphere on peta-scale computer FX10. / Fukazawa, Keiichiro; Nanri, Takeshi; Umeda, Takayuki.

Parallel Computing: Accelerating Computational Science and Engineering (CSE). IOS Press BV, 2014. p. 387-394 (Advances in Parallel Computing; 巻 25).

研究成果: 著書/レポートタイプへの貢献会議での発言

Fukazawa, K, Nanri, T & Umeda, T 2014, Performance measurements of MHD simulation for planetary magnetosphere on peta-scale computer FX10. : Parallel Computing: Accelerating Computational Science and Engineering (CSE). Advances in Parallel Computing, 巻. 25, IOS Press BV, pp. 387-394. https://doi.org/10.3233/978-1-61499-381-0-387
Fukazawa K, Nanri T, Umeda T. Performance measurements of MHD simulation for planetary magnetosphere on peta-scale computer FX10. : Parallel Computing: Accelerating Computational Science and Engineering (CSE). IOS Press BV. 2014. p. 387-394. (Advances in Parallel Computing). https://doi.org/10.3233/978-1-61499-381-0-387
Fukazawa, Keiichiro ; Nanri, Takeshi ; Umeda, Takayuki. / Performance measurements of MHD simulation for planetary magnetosphere on peta-scale computer FX10. Parallel Computing: Accelerating Computational Science and Engineering (CSE). IOS Press BV, 2014. pp. 387-394 (Advances in Parallel Computing).
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