| Project/Area Number |
25730079
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
High performance computing
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| Research Institution | Institute for Molecular Science |
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Principal Investigator |
ISHIMURA Kazuya 分子科学研究所, 理論・計算分子科学研究領域, 特任研究員 (80390681)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2015: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2014: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 量子化学 / スーパーコンピュータ / 並列計算 / 計算化学 / 巨大分子系 / オープンソースライセンス / 電子状態 / 計算科学 |
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| Outline of Final Research Achievements |
Algorithms for massively parallel quantum chemistry calculations were developed and implemented, and the developed program SMASH was released under the open source (Apache 2.0) license. It shows high parallel efficiency and CPU performance on 100,000 CPU cores of the K Computer. It is practical to calculate electronic structures and geometries of large molecules with relatively high accuracy. Frequently used routines such as one- and two-electron integral calculations are modularized to reuse easily. As applications, the structures of nano-sized gold clusters were calculated accurately, and the activation energy calculation of a chemical reaction using first-principle molecular dynamics was performed by combining with another program.
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