| Project/Area Number |
25730068
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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 |
Information network
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| Research Institution | National Institute of Informatics |
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Principal Investigator |
FUJIWARA Ikki 国立情報学研究所, アーキテクチャ科学研究系, 特任准教授 (90648023)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | ネットワーク / ハイパフォーマンス・コンピューティング / 計算機システム / 相互結合網 / トポロジー |
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| Outline of Final Research Achievements |
This research clarified how to design an ultra-low-latency network that connects tens of thousands of computers within a large-scale parallel computing systems such as next-generation supercomputers. We developed a sophisticated method to design a network topology and a routing algorithm that minimizes the end-to-end latency. Existng design method for supercomputer networks did not take a cable delay into account, of which our proposed method explicitly take care. When comparing to a former state-of-the-art network design, our design achieves merely 6% higher communication latency while consuming 65% smaller amount of cable. As such, our proposed design method provides a desirable trade-off between cost and performance.
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