RIKEN Center for Computational Science Processor Research Team
Team Principal: Kentaro Sano (Ph.D.)
Research Summary
"We conduct research on high-performance and low-power computer architectures, considering technological trends in semiconductor manufacturing and packaging technologies and memory technologies as follows:
- +Next-generation computer architecture for HPC and AI, in particular, coarse-grained reconfigurable arrays (CGRAs).
- +Application-specific computer architecture optimized for each problem. For example, quantum error correction hardware, and hardware for near-sensor processing in synchrotron radiation facilities
- +Systems for research on high-performance application-specific computer architectures. Especially, an FPGA cluster system
Main Research Fields
- Engineering
Related Research Fields
- Informatics
- Interdisciplinary Science & Engineering
Keywords
- Computer Architecture
- Domain-specific hardware design
- Hardware Algorithms
- Advanced AI Device
- Fault-tolerant quantum computer
Selected Publications
- 1.
Kentaro Sano, Tomohiro Ueno, Fuga Kato, Kazuya Mochizuki, Katsuhiko Ota, Nozomu Matsunaga
"ESSPER2: Research-Oriented FPGA Cluster for Quantum Error Correction and HPC Applications"
Proceedings of International Symposium on Highly-Efficient Accelerators and Reconfigurable Technologies (HEART), May 17-19, 2026.
DOI: 10.1145/3814576.3814590 - 2.
Chenlin Shi, Boma A. Adhi, Lin Teng, Jiaheng Liu, Shinobu Miwa, Kentaro Sano
"Towards Unified Acceleration: Weight-Stationary GEMM on HPC-oriented Elastic CGRAs"
Proceedings of SCA/HPCA'26, 2026.
DOI: 10.1145/3773656.3773663 - 3.Prasoon Ambalathankandy, Werner Florian Samayoa, Jan Erik R. Wichmann, Kentaro Sano
"Systolic array based syndrome graph pruning for quantum error correction using FPGAs"
Proceedings of International Symposium on Highly-Efficient Accelerators and Reconfigurable Technologies (HEART), pp.126-130, May 26-28, 2025.
DOI: 10.1145/3728179.3728184 - 4.
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, Jan 25–27, 2024.
DOI: 10.1145/3635035.3637285 - 5.
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, 2024.
DOI: 10.1109/IPDPS57955.2024.00065 - 6.
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, 2024.
DOI: 10.1145/3634920 - 7.
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, 2023.
DOI: 10.1145/3578178.3579341 - 8.
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, 2023.
DOI: 10.1145/3579848 - 9.
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, Sep 6-9, 2022.
DOI: 10.1109/CLUSTER51413.2022.00046 - 10.
Artur Podobas, Kentaro Sano, and Satoshi Matsuoka
"A Survey on Coarse-Grained Reconfigurable Architectures from a Performance Perspective"
IEEE Access, Vol.8, pp.146719-146743, 2020.
DOI:10.1109/ACCESS.2020.3012084
Related Links
Lab Members
Principal investigator
- Kentaro Sano
- Team Principal
Core members
- Tomohiro Ueno
- Research Scientist
- Akira Jinguji
- Research Scientist
- Boma Anantasatya Adhi
- Research Scientist
- Jan Erik Reinhard Wichmann
- Research Scientist
- Werner Oswaldo Florian Samayoa
- Postdoctoral Researcher
- Jiaheng Liu
- Postdoctoral Researcher
- Yanchen Li
- Postdoctoral Researcher
- Chenlin Shi
- Junior Research Associate
- Fuga Kato
- Technical Scientist
Careers
| Position | Deadline |
|---|---|
| Seeking a few Senior Research Scientists, Research Scientists, Postdoctoral Researchers, or Research Associates (25-2431) | Open until filled |
Contact Information
Kobe Center for Medical Innovation
6-3-5 Minatojima-minami-machi, Chuo-ku,
Kobe, Hyogo
650-0047 Japan
Email: kentaro.sano@riken.jp