| Project/Area Number |
20500044
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Software
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
YAMADA Susumu Japan Atomic Energy Agency, システム計算科学センター, 研究副主幹 (80360436)
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| Co-Investigator(Kenkyū-buntansha) |
MACHIDA Masahiko 独立行政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 (60360434)
OHASHI Yoji 慶應大学, 理工学部, 准教授 (60272134)
IMAMURA Toshiyuki 電気通信大学, 電気通信学部, 准教授 (60361838)
MATSUMOTO Hideki 東北大学, 大学院・理学研究科, 研究支援者 (40209648)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 並列アルゴリズム / ハイパフォーマンスコンピューティング / 量子計算 / 密度行列繰り込み群 / 固有値計算 / 並列計算 / フェルミ粒子 / ババードモデル / ハイパフォーマンスコピューティング / ハバードモデル |
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| Research Abstract |
In this research, we developed the parallelization strategy and speedup technique of the density matrix renormalization group (DMRG) method which is one of the numerical simulation methods for the quantum many-body problem. We proposed the parallelization strategy derived from the symmetry of the problem. And then, we developed the communication strategy which is suitable for the network architecture of multi-core cluster systems. As a result, we confirmed that our method can achieve the good scalability on 1024 cores. Moreover, we simulated the 2-dimensional quantum many-body problems and discussed the property of the problem by using the simulation results.
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