| Project/Area Number |
15K00178
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
High performance computing
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
Yamada Susumu 国立研究開発法人日本原子力研究開発機構, システム計算科学センター, 研究主幹 (80360436)
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| Co-Investigator(Kenkyū-buntansha) |
大橋 洋士 慶應義塾大学, 理工学部(矢上), 教授 (60272134)
町田 昌彦 国立研究開発法人日本原子力研究開発機構, システム計算科学センター, 研究主席 (60360434)
太田 幸宏 国立研究開発法人日本原子力研究開発機構, システム計算科学センター, 研究員 (60386597)
永井 佑紀 国立研究開発法人日本原子力研究開発機構, システム計算科学センター, 研究職 (20587026)
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| Project Period (FY) |
2015-10-21 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 高性能計算 / アクセラレータ / 固有値計算 / 大規模並列計算 / 量子計算 / 次世代計算機 / 量子多体モデル / 並列計算 / 高速化 / 量子問題 / 固有値 / GPU / エクサスケール計算機 |
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| Outline of Final Research Achievements |
In this research, we have studied high performance eigenvalue solver for quantum many-body problem on parallel computers using accelerators. We have proposed the calculation strategy suitable for GPUs and the communication avoiding method in considering the physical property. And then, we discussed accumulation of round-off and truncation errors and a precision issue in large simulations requiring a great number of calculations, and we developed the high-performance quadruple precision library to avoid this issue. Moreover, we simulated the quantum many-body problems using our proposed solvers and discussed the property of the problem by using the simulation results.
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