RIKEN Center for Computational Science Application Development Team
Team Leader: Hirofumi Tomita (D.Eng.)
Research Summary

Aiming for maximizing the outcome from post K-computer, Application Development Team conducts the R&D with the related researchers from architecture, system software and algorithm field. Its core missions are:
- 1.Co-design based on target applications
The team executes the co-design of application and system through the performance analysis and optimization of the "target applications" that have been chosen by the advisory panel of MEXT as the priority social and scientific challenges, in cooperation with the counterpart agencies and the colleague teams in this project. The team also works with the co-design promotion team to develop the new algorithm and the implementation method. The optimization methodology is recorded and utilized by the following applications. - 2.Establishment of the application benchmark suites for system performance evaluation
The team develops and maintains the "mini-apps" that are designed to represent the same performance characteristics as the full applications from major computational science domains. It is designed to be compact and easy to run, and is made available in source code format, which is often not the case with the full applications. They are studied from various analysis angles and are executed for performance collection on supercomputers including K-computer, and are hoped to be used internationally as the standard tool for system performance evaluation. Collaborative research with the universities is conducted, aiming for the establishment of the future oriented system performance evaluation methodology. - 3.Application infrastructure R&D
The team, along with the R&D department of AICS, develops the application infrastructure including the libraries and frameworks which are important elements in maximizing the outcome of the users of post K-computer.
The team also leads the promotional activities to continue the research work done through the "Feasibility Study on Future HPC Infrastructures (Application Working Group)", extracting the social and scientific challenges to be solved by HPC during next 5-10 years.
Main Research Fields
- Environmental Science
Related Research Fields
- Interdisciplinary Science & Engineering
Keywords
- Co-design based on target applications
- Establishment of the application benchmark suites for system performance evaluation
- Application infrastructure R&D
Selected Publications
- 1.Y. Kawashima, K. Hirao:
"Singularity Correction for Long-Range-Corrected Density Functional Theory with Plane-Wave Basis Sets"
The Journal of Physical Chemistry A, Vol. 121, No. 9, P. 2035-2045 (2017) - 2.Y. Kawashima, K. Sawada, T. Nakajima, M. Tachikawa:
"Nuclear quantum effect on the intermolecular hydrogen bond of acetic acid - phosphorous acid anion cluster: An ab initio path integral molecular dynamics study"
Journal of Computer Chemistry, Vol. 15, P. 203-209 (2016) - 3.Y. Nakamura, Y. Kuramashi, S. Takeda, A. Ukawa:
"Critical endline of the finite temperature phase transition for 2+1 flavor QCD around the SU(3)-flavor symmetric point"
PHYSICAL REVIEW D, 94, 114507 (2016) - 4.Yashiro, H., Terasaki, K., Miyoshi, T., and Tomita, H.:
"Performance evaluation of throughput-aware framework for ensemble data assimilation: The case of NICAM-LETKF"
Geosci. Model Dev. Volume 9, issue 7, Page 2293-2300 (2016).
Related Links
Lab Members
Principal investigator
- Hirofumi Tomita
- Team Leader
Core members
- Yoshifumi Nakamura
- Research Scientist
- Seiya Nishizawa
- Research Scientist
- Yuji Sugita
- Research Scientist
- Seiji Yunoki
- Research Scientist
- Takahito Nakajima
- Research Scientist
- Yuichi Otsuka
- Research Scientist
- Jaewoon Jung
- Research Scientist
- Chigusa Kobayashi
- Research Scientist
- Hiroshi Ueda
- Research Scientist
- Makoto Tsubokura
- Research Scientist
- Keiji Onishi
- Research Scientist
- Yohsuke Murase
- Research Scientist
- Rahul Bale
- Research Scientist
- Naoki Yoshioka
- Research Scientist
- Soichiro Suzuki
- Research & Development Scientist
- Kazunori Mikami
- Research & Development Scientist
- Kiyoshi Kumahata
- Research & Development Scientist
- Kazuo Minami
- Research & Development Scientist
- Akiyoshi Kuroda
- Research & Development Scientist
- Shigetoshi Sota
- Research & Development Scientist
- Yuta Kawai
- Postdoctoral Researcher
- Koji Nishiguchi
- Postdoctoral Researcher
- Keigo Nitadori
- Technical Scientist
- Mamiko Hata
- Technical Staff I
- Hisashi Yashiro
- Visiting Scientist
- Kohei Fujita
- Visiting Scientist
- Masatomo Hashimoto
- Visiting Scientist
Contact Information
7-1-26 Minatojima-minamimachi, Chuo-ku
Kobe, Hyogo
650-0047 Japan
Email: Email: htomita [at] riken.jp