Centers & Labs

RIKEN Advanced Institute for Computational Science

Co-Design Team

Team Leader: Junichiro Makino (Ph.D.)
Junichiro  Makino(Ph.D.)

The mission of the Co-design team is to organize the "co-design" between the hardware and software of the exascale system. It is unpractical to design the many-core complex processor of today without taking into account the requirement of applications. At the same time, it is also unrealistic to develop applications without taking into account the characteristics of the processors on which it will run.
The term "Co-design" means we will modify both hardware and software to resolve bottlenecks and achieve best performance.

Main Research Field


Related Research Fields

Complex systems / Interdisciplinary science and engineering


  • Large Scale Astrophysical Simulation
  • Computer Architecture
  • High Performance Computing

Selected Publications

  1. Muranushi, T., Nitadori, K., and Makino, J.:
    "Nanoblock Unroll: Towards the Automatic Generation of Stencil Codes with the Optimal Performance"
    Proceedings of the Second Workshop on Optimizing Stencil Computations, 49-55 (2014).
  2. Yoshifuji, N., Sakamoto, R., Nitadori, K., and Makino, J.:
    "Implementation and evaluation of data-compression algorithms for irregular-grid iterative methods on the PEZY-SC processor"
    2016 6th Workshop on Irregular Applications: Architecture and Algorithms (IA3), 58-61 (2016)
  3. Muranushi, T., Hotta, H., Makino, J., Nishizawa, S., Tomita, H., Nitadori, K., Iwasawa, M., Hosono, N., Maruyama, Y., Inoue, H., Yashiro, H. and Nakamura, Y.:
    "Simulations of below-ground dynamics of fungi: 1.184 pflops attained by automated generation and autotuning of temporal blocking codes"
    IEEE Press, P.3 13, (2016)
  4. Muranushi, T., Nishizawa, S., Tomita, H., Nitadori, K., Iwasawa, M., Maruyama Y., Yashiro, H., Nakamura, Y., Hotta, H., Makino, J., Hosono, N. and Inoue, H.:
    “Automatic generation of efficient codes from mathematical descriptions of stencil computation”
    ACM, 17-22 22, (2016)
  5. Sumi, T., Maruyama, Y. and Mitsutake, A.:
    "A reference-modified density functional theory: An application to solvation free-energy calculations for a Lennard-Jones solution"
    The Journal of Chemical Physics, Volume 144, Issue 22, P 224104 (2016)

Lab Members

Principal Investigator

Junichiro Makino
Team Leader

Core Members

Kenji Ono
Research Scientist
Jorji Nonaka
Research Scientist
Keigo Nitadori
Research Scientist
Yutaka Maruyama
Research Scientist
MIkio Iizuka
Research Scientist
Daisuke Namekata
Research Scientist
Masaki Iwasawa
Postdoctoral Researcher
Yusuke Hirota
Postdoctoral Researcher
Takayuki Muranushi
Postdoctoral Researcher
Daichi Mukunoki
Postdoctoral Researcher
Kiwamu Okabe
Research Consultant
Miyuki Tsubouchi
Technical Staff I
Naohito Nakasato
Visiting Scientist
Ataru Tanikawa
Visiting Scientist
Natsuki Hosono
Visiting Scientist

Contact information

R401 Research Building,
7-1-26 Minatojima-minamimachi, Chuo-ku
Kobe, Hyogo
650-0047 Japan
Tel: +81-(0)78-940-5632
Fax: +81-(0)78-304-4970

Email: aics-koho [at]

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