Development of a communication scheme for many site coupled calculations

2016 Fiscal Year Final Research Report

• Project/Area Number: 26330146
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: High performance computing
• Research Institution: Teikyo University
• Principal Investigator: KOBAYASHI Taizo 帝京大学, 福岡医療技術学部, 准教授 (20467880)
• Co-Investigator(Renkei-kenkyūsha): MUNETOMO Masaharu 北海道大学, 情報基盤センター, 教授 (00281783) ; JITSUMOTO Hideyuki 東京工業大学, 学術国際情報センター, 助教 (00545311) ; TAKAMI Toshiya 大分大学, 理工学部, 教授 (10270472) ; NANRI Takeshi 九州大学, 情報基盤研究開発センター, 准教授 (70284578) ; MORIE Yoshiyuki 九州大学, 情報基盤研究開発センター, 学術研究員 (80512946)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 計算基盤 / 高性能計算 / 分散処理 / 連成計算 / ポスト処理連携 / 通信スキーム

Outline of Final Research Achievements

A big bottleneck in coupled simulations and large scale high performance computing is files I/O. In order to reduct this bottleneck, we have studied and developed a communication scheme of which processes are able to connect each other directly. (1) We have implemented a simple and compact communication library: NSTDIO. The interface of this communication library is designed based on "stdio" of C programing language. This library is enabled to download from GitHub https://github.com/y-morie/nstdio (2) We have developed and implemented a framework of jobs/processes cooperation on inter-site: EGCPOPS. This framework realizes jobs cooperation on inter-site without any administrator authority. This framework is also available from GitHub https://github.com/RyzeVia/exgcoup (3) Because of these framework work well, we have also studied and developed a conceptual design of mechanism for uncertainty: Self-Referential eXecutable: SRX.

Free Research Field

情報学