東京大学情報基盤センターFX10スパコンシステム(Oakleaf-FX)活用事例
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1 FX10 Oakleaf-FX Practical use of FX10 Supercomputer System (Oakleaf-FX) of Information Technology Center, The University of Tokyo 坂口吉生 小倉崇浩 あらまし FUJITSU Supercomputer PRIMEHPC FX10 Oakleaf-FX Oakleaf-FX PFLOPS CPU 1500 Oakleaf-FX Oakleaf-FX Abstract Information Technology Center, The University of Tokyo (ICT/UT) is a core organization of Joint Usage/Research Center for Interdisciplinary Large-Scale Information Infrastructures which consists of eight academic supercomputer centers in Japan. There, Oakleaf-FX, a system centered on Fujitsu s PRIMEHPC FX10 ( CPU cores,) which has been developed by further enhancing the technology applied to the K computer to realize both high performance and superior energy efficiency, started operations in April 2012 and achieved a performance of 1 PFLOPS (ranked 18th in the world) in June Supercomputing Division of ITC/UT provides services for operations of supercomputer systems and supporting more than 1500 users from both of inside and outside of the university for various cutting-edge R&D and education activities. Fujitsu is working to develop products with high application execution performance, and create user-friendly systems that can work in various operational environments and that are energy efficient. This paper presents a system overview of Oakleaf-FX and the issues to be overcome to develop supercomputers, together with measures for solving them. The results of various studies making use of Oakleaf-FX have been reported and this paper reports on four fields as successful examples of its application. FUJITSU. 65, 1, p ,
2 まえがき Oakleaf-FX Oakleaf-FX FUJITSU Supercomputer PRIMEHPC FX10 Oakleaf-FX Oakleaf-FX Oakleaf-FX の概要 Oakleaf-FX PRIMEHPC FX PC FUJITSU Server PRIMERGY 74 FUJITSU Storage ETERNUS 234 図 -1 HPC Technical Computing Suite FEFS Fujitsu Exabyte File System Oakleaf-FX 1 PFLOPS HPC High Performance Computing スパコンに求められている課題 2004 CPU CPU TOP CPU 図 -2 FUJITSU Storage ETERNUS DX80 S2 1.1 P DX410 S2 2.1 P Software FUJITSU Supercomputer PRIMEHPC FX10 Technical Computing Suite OSS(Open Source Software) FUJITSU Server PRIMERGY RX300 S6 RX200 S6 NW ー 4800 ー ( CPU コ ) (300 IO ー ) ー 1.13 PFLOPS 150 T -1 Oakleaf-FX 62 FUJITSU. 65, 1 01, 2014
3 システム コ ( ) コ ( ) (GFLOPS) システム (GFLOPS) 10 システム (MHz) (MHz) / / / / / / / / / / / / / / / /06 0 ( / ) -2 Open Source Software OSS Oakleaf-FX の課題解決アプローチ アプリケーションの高い実行性能の実現 PRIMEHPC FX10 6 / Tofu VISIMPACT Virtual Single Processor by Integrated Multicore Parallel Architecture Oakleaf-FX CPU MPI VISIMPACT VISIMPACT CPU 12 M L2 HPL High-Performance Linpack 1.04 PFLOPS TOP 使いやすいシステムと柔軟な運用環境の提供 FUJITSU. 65, 1 01,
4 Oakleaf-FX 1 Oakleaf-FX HPC 4 Open Source Software Oakleaf-FX OSS 高性能と省電力を両立したグリーンスパコン Oakleaf-FX Green kw/ PFLOPS MFLOPS/W 43 Oakleaf-FX 図 -3 Oakleaf-FX の活用事例 Oakleaf-FX Graph500 3 Oakleaf- FX 4 Oakleaf-FX Oakleaf-FX Oakleaf-FX HPC 不均質多孔質媒体における3 次元地下水流れ ( 東大センター中島研吾教授 ) (4)-(6) FUJITSU. 65, 1 01, 2014
5 Conjugate Gradient Method with Multigrid Preconditioner MGCG 図 -4 Oakleaf- FX CPU ICCG 図 -5 大西洋起源海流の北極海氷分布への影響評価 ( 東京大学大気海洋研究所羽角博康教授 ) (7),(8) km 図 Oakleaf-FX Rest 20 Coarse Grid Solver MPI_Allgather MPI_Isend/Irecv/Allreduce sec ELL-hCGA ELL-CGA ELL-CGA ELL 65 CRS 66 lev 6 51 lev 7 55 lev 8 60 ー -5 Oakleaf-FX MGCG -6 FUJITSU. 65, 1 01,
6 図 -7 マルチスケールプラズマ乱流のジャイロ運動論的シミュレーション ( 東京大学生産技術研究所加藤千幸教授 ) (9) 5 図 -8 MPI/ OpenMP Oakleaf-FX CPU 48 図 -9 ふくしゃ ブラックホール降着流の磁気流体 輻射磁気 流体シミュレーション ( 千葉大学理学研究科松元亮治教授 ) (10) 図 HLLD 3 5 MP5 25 Performance(TFLOPS) ン ー ー ン Number of cores Oakleaf-FX FUJITSU. 65, 1 01, 2014
7 Oakleaf-FX CPU 100 図 R3MHD MPI/OpenMP Oakleaf-FX CPU 10 3 今後の展望 HPC JCAHPC Joint Center for Advanced High Performance Computing Oakleaf-FX -10 HLLD 3-11 FUJITSU. 65, 1 01,
8 HPC むすび Oakleaf-FX 参考文献 1 TOP Green Graph K. Nakajima OpenMP/MPI Hybrid Parallel Multigrid Method on Fujitsu FX10 Supercomputer System IEEE Proceedings of 2012 International Conference on Cluster Computing Workshops 2012 p K. Nakajima Large-scale Simulations of 3D Groundwater Flow using Parallel Geometric Multigrid Method Procedia Computer Science Vol.18 p K. Nakajima Challenges in Sparse Linear Solvers for Post-Peta/Exascale Systems Latest Advances in Scalable Algorithms for Large Scale Systems ISC 13 International Supercomputing Conference Leipzig Germany T. Kawasaki et al. High-resolution modeling study on the Atlantic water inflow to the Arctic Ocean IAHS-IAPSO-IASPEI Joint Assembly Goteborg Sweden T. Kawasaki et al. High resolution modeling for long-term prediction of the Arctic sea ice NIPR Symposium Tokyo Japan GKV HPCS 2013 Tokyo Japan P R. Matsumoto X-ray Flares Triggered by the Tidal Disruption of a Gas Cloud Approaching the Galactic Center Supermassive Black Hole 12th International Workshop on the Interrelationship between Plasma Experiments in Laboratory and Space IPELS Hakuba Japan July 著者紹介 坂口吉生 ( さかぐちよしお ) HPC 小倉崇浩 ( おぐらたかひろ ) Oakleaf-FX 68 FUJITSU. 65, 1 01, 2014
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