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Research
Next-Generation HPC Infrastructure Development Division
Next-Generation HPC Infrastructure System Development Unit
Next-Generation HPC Infrastructure System Development Unit
Japanese
Unit Leader Kentaro Sano
kentaro.sano[at]riken.jp (Lab location: Kobe)- Please change [at] to @
- 2025
- Unit Leader, Next-Generation HPC Infrastructure System Development Unit, Next-Generation HPC Infrastructure Development Division, RIKEN R-CCS (-present)
- 2024
- Unit Leader, Advanced AI Device Development Unit, AI for Science Platform Division, RIKEN R-CCS (-present)
- 2017
- Team Leader, Processor Research Team, AICS (renamed R-CCS in 2018), RIKEN (-present)
- 2006
- Visiting Researcher, Imperial College,London
- 2005
- Associate Professor, Graduate School of Information Sciences, Tohoku University
- 2001
- Assistant Professor, Graduate School of Information Sciences, Tohoku University
- 2000
- Assistant Professor, Graduate School of Engineering, Tohoku University
- 2000
- Graduated from Computer and Mathematical Sciences, Graduate School of Information Sciences, Tohoku University
Keyword
- Development of FugakuNEXT
- Hardware system design
- Computer architecture
- Co-design
- Accelerators
Research summary
In the development of FugakuNEXT as the next-generation computing infrastructure, we will conduct research and development mainly on hardware design, including microarchitectures of CPU and an accelerator, a compute node architecture, an interconnection network, and an overall system while investigating trends in technologies of semiconductor manufacturing and packaging as well as memory technology. In particular, we will conduct co-design between thoese hardware systems and applications considering the application characteristics.
Main research results
We have just started research and development.
Representative papers
- Franck Cappello, Sheng Di, Robert Underwood, Dingwen Tao, Jon Calhoun, Yoshii Kazutomo, Kento Sato, Amarjit Singh, Luc Giraud, Emmanuel Agullo, Xavier Yepes, Mario Acosta, Sian Jin, Jiannan Tian, Frédéric Vivien, Boyuan Zhang, Kentaro Sano, Tomohiro Ueno, Thomas Grützmacher, Hartwig Anzt
"Multifacets of lossy compression for scientific data in the Joint-Laboratory of Extreme Scale Computing"
FGCS (Elsevier Future Generation Computer Systems), Vol.163, DOI:10.1016/j.future.2024.05.022, 2024. - Juan Miguel de Haro Ruiz, Carlos Alvarez Martınez, Daniel Jimenez-Gonzalez, Xavier Martorell, Tomohiro Ueno, Kentaro Sano, Burkhard Ringlein, Francois Abel, Beat Weiss
Automated parallel execution of distributed task graphs with FPGA clusters
FGCS (Elsevier Future Generation Computer Systems), Vol.160, Issue C, pp.808-824, DOI:10.1016/j.future.2024.06.041, 2024. - Ryota Miyagi, Ryota Yasudo, Kentaro Sano, Hideki Takase
"A Scalable Accelerator for Local Score Computation of Structure Learning in Bayesian Networks"
FCCM Journal Track with ACM Transactions on Reconfigurable Technology and Systems (TRETS), Vol.18, Issue 1, Article No.8, pp.1-29, DOI: https://doi.org/10.1145/3674842, 2024. - Tomohiro Ueno, Emanuele Del Sozzo, Kentaro Sano
"Flexible Systolic Array Platform on Virtual 2-D Multi-FPGA Plane"
Proceedings of HPC Asia 2024: The International Conference on High Performance Computing in Asia-Pacific Region, pp.84–94, DOI: 10.1145/3635035.3637285, Jan 25–27, 2024. - Emanuele Del Sozzo, Xinyuan Wang, Boma Adhi, Carlos Cortes, Jason Anderson, Kentaro Sano
"Exploration of Trade-offs Between General-Purpose and Specialized Processing Elements in HPC-Oriented CGRA"
Proceedings of IEEE International Parallel & Distributed Processing Symposium (IPDPS), pp.668-680, DOI: 10.1109/IPDPS57955.2024.00065., 2024. - Emanuele Del Sozzo, Davide Conficconi, Kentaro Sano
"Across Time and Space: Senju’s Approach for Scaling Iterative Stencil Loop Accelerators on Single and Multiple FPGAs"
FPT Journal Track with ACM Transactions on Reconfigurable Technology and Systems (TRETS), Vol.17, Issue.2, Article No.28, pp.1-33, DOI: 10.1145/3634920, 2024. - Philippos Papaphilippou, Kentaro Sano, Boma A. Adhi, and Wayne Luk
"Experimental survey of FPGA-based monolithic switches and a novel queue balancer"
IEEE Transactions on Parallel and Distributed Systems (TPDS), Vol.34, no.5, pp.1621-1634, DOI: 10.1109/TPDS.2023.3244589, 2023. - Kentaro Sano, Atsushi Koshiba, Takaaki Miyajima, and Tomohiro Ueno
"ESSPER: Elastic and Scalable FPGA-Cluster System for High-Performance Reconfigurable Computing with Supercomputer Fugaku"
Proceedings of HPC Asia2023, pp.140-150, DOI: 10.1145/3578178.3579341, 2023. - Tomohiro Ueno and Kentaro Sano
"VCSN: Virtual Circuit-Switching Network for Flexible and Simple-to-Operate Communication in HPC FPGA Cluster"
ACM Transactions on Reconfigurable Technology and Systems (TRETS), Vol.16, Issue.2, Article No.25, pp.1-32, DOI: 10.1145/3579848, 2023. - Boma Adhi, Carlos Cortes, Yiyu Tan, Takuya Kojima, Artur Podobas, and Kentaro Sano
"The Cost of Flexibility: Embedded versus Discrete Routers in CGRAs for HPC"
Proceedings of IEEE Cluster Conference (CLUSTER), pp.347-356, DOI: 10.1109/CLUSTER51413.2022.00046, Sep 6-9, 2022.
