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2017 Fiscal Year Final Research Report

Interconnection networks approaching the theoretical limit

Research Project

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Project/Area Number 15K00144
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Information network
Research InstitutionNational Institute of Information and Communications Technology (2016-2017)
National Institute of Informatics (2015)

Principal Investigator

Fujiwara Ikki  国立研究開発法人情報通信研究機構, ユニバーサルコミュニケーション研究所データ駆動知能システム研究センター, 主任研究員 (90648023)

Co-Investigator(Renkei-kenkyūsha) Koibuchi Michihiro  国立情報学研究所, アーキテクチャ科学研究系, 准教授 (40413926)
Kawarabayashi Ken-ichi  国立情報学研究所, 情報学プリンシプル研究系, 教授 (40361159)
Research Collaborator Fujita Satoshi  
Nakano Koji  
Takafuji Daisuke  
Matsutani Hiroki  
Yasudo Ryota  
Project Period (FY) 2015-04-01 – 2018-03-31
Keywordsネットワーク
Outline of Final Research Achievements

In this research, we aim to reach the theoretical lower bound of communication latency between nodes in a next-generation supercomputer. We conducted research using the following three approaches to pursue highly efficient networks. (1) We propose a network construction method using unidirectional links and clarified that the application performance is improved by 30% on average as compared with a conventional network that uses bidirectional links. (2) We held an open online competition for small-diameter graphs, named "Graph Golf", and collected a wide variety of graph instances and graph composition methods from the public. (3) We established a graph database, named "Graph Bank", that return the research results to the society by helping researchers and engineers who search for valuable graphs.

Free Research Field

計算機ネットワーク

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Published: 2019-03-29  

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