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RIKEN Center for Computational Science System Operations and Development Unit

Unit Leader: Atsuya Uno (Ph.D.)

Research Summary

Atsuya  Uno(Ph.D.)

The system operations and development unit has conducted operations and maintenance management, user management, and user support of super computer systems operated by R-CCS in addition to the research and development on advanced management and operations of them. We have made improvements of the job scheduler, file system, and MPI library (communications library) while analyzing the operational statistics of systems. Additionally, we have also carried out network maintenance management, etc., within R-CCS.

Main Research Fields

  • Engineering

Keywords

  • High Performance Computing
  • Power Efficiency
  • Job Scheduling

Selected Publications

  • 1.Y. Tsujita, T. Yoshizaki, K. Yamamoto, F. Sueyasu, R. Miyazaki, and A. Uno.:
    “Alleviating I/O Interference Through Workload-Aware Striping and Load-Balancing on Parallel File Systems”
    LNCS 10266, pp. 315-333 (2017)
  • 2.Atsuya UNO, Ryuichi SEKIZAWA.:
    “A Study of Job Scheduling Performance focusing on Compute Node Maintenance”
    HPCS2016, Miyagi, Japan (2016)
  • 3.Atsuya UNO, Hajime HIDA, Fumio INOUE, Naoki IKEDA, Toshiyuki TSUKAMOTO, Fumichika SUEYASU, Satoshi MATSUSHITA, Fumiyoshi SHOJI.:
    “Operation of the K computer Focusing on System Power Consumption”
    IPSJ Transactions on Advanced Computing Systems Vol.8, No.4, pp.13-25 (2015)
  • 4.Fumiyoshi Shoji, Shuji Matsui, Mitsuo Okamoto, Fumichika Sueyasu, Toshiyuki Tsukamoto, Atsuya Uno, Keiji Yamamoto.:
    “Long term failure analysis of 10 Petascale supercomputer”
    ISC2015 HPC IN ASIA POSTER AWARD, Frankfurt, Germany (2015)
  • 5.Keiji Yamamoto, Atsuya Uno, Hitoshi Murai, Toshiyuki Tsukamoto, Fumiyoshi Shoji, Shuji Matsui, Ryuichi Sekizawa, Fumichika Sueyasu, Hiroshi Uchiyama, Mitsuo Okamoto, Nobuo Ohgushi, Katsutoshi Takashina, Daisuke Wakabayashi, Yuki Taguchi and Mitsuo Yokokawa.:
    “The K computer Operations: Experiences and Statistics”
    ICCS2014, Cairns, Australia (2014)

Related Links

Lab Members

Principal investigator

Atsuya Uno
Unit Leader

Core members

Fumio Inoue
Research & Development Scientist
Yuichi Tsujita
Senior Technical Scientist
Hitoshi Murai
Senior Technical Scientist
Katsufumi Sugeta
Expert Technician

Contact Information

7-1-26,Minatojima-minami-machi,
Chuo-ku,Kobe,Hyogo
650-0047,Japan
Email: r-ccs-koho [at] ml.riken.jp

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