News

• 2022/12/21
  Eito, Enn, and Takumi gave talks in MCSoC, Malaysia. [Eito Sato et al., Design and Analysis of a Nano-photonic Processing Unit for Low-Latency Recurrent Neural Network Applications] [Wang Yuan et al., Implementation of Edge-cloud Cooperative CNN Inference on an IoT Platform] [Takumi Inaba et al., A Hybrid Opto-Electrical Floating-point Multiplier]
  
• 2022/11/10
  Our Lab-wide discussion moved from on-line to in-person (hybrid)!
  
• 2022/10/20
  Koji gave a talk for the My-IoT project at smart factory Japan 2022.
  
• 2022/10/04
  Oct. 2022, MICRO! We gave a talk for our quantum computer research in MICRO.[Y. Suzuki, T. Sugiyama, T. Arai, W. Liao, K. Inoue, T. Tanimoto, Q3DE: A fault-tolerant quantum computer architecture for multi-bit burst errors by cosmic rays]
  
• 2022/06/21
  Our research for Quantum Computer has been presented at ISCA. This is a corroborative work driven by Seoul National University, Korea. [I. Byun et al., XQsim: Modeling Cross-Technology Control Processors for 10+K Qubit Quantum Computers]
  

Research Topics

1. Superconductor Computing

2. Quantum Computing

3. Nano-Photonic Computing

4. Secure Computing

5. Environmentally Scalable Computing

6. Domain-Specific Edge/Cloud Computing

7. CPU/Memory Microarchitecture and VLSI Technology

Selected Publications

• International Proceedings (Peer-Reviewed)

  Yasunari Suzuki, Takanori Sugiyama, Tomochika Arai, Wang Liao, Koji Inoue, and Teruo Tanimoto, “Q3DE: A fault-tolerant quantum computer architecture for multi-bit burst errors by cosmic rays,” the 55th IEEE/ACM International Symposium on Microarchitecture (MICRO), pp.1110-1125, Oct. 2022.

• International Proceedings (Peer-Reviewed)

  Ilkwon Byun, Junpyo Kim, Dongmoon Min, Ikki Nagaoka, Kosuke Fukumitsu, Iori Ishikawa, Teruo Tanimoto, Masamitsu Tanaka, Koji Inoue, and Jangwoo Kim, “XQsim: Modeling Cross-Technology Control Processors for 10+K Qubit Quantum Computers,” ACM/IEEE International Symposium on Computer Architecture (ISCA), pp. 366-382, June 2022.

• Journals (Peer-Reviewed)

  Koki Ishida, Ilkwon Byun, Ikki Nagaoka, Kousuke Fukumitsu, Masamitsu Tanaka, Satoshi Kawakami, Teruo Tanimoto, Takatsugu Ono, Jangwoo Kim, and Koji Inoue, “Superconductor Computing for Neural Networks,“ in IEEE Micro (IEEE’s Top Picks), pp.1–8, May/June 2021.

• Journals (Peer-Reviewed)

  Kenichi Kitayama, Masaya Notomi, Makoto Naruse, Koji Inoue, Satoshi Kawakami, Atsushi Uchida, “Novel frontier of photonics for data processing – Photonic accelerator -,” APL Photonics, Vol.4, No.9, pp.090901-1-090901-24, Sep. 2019.

• International Proceedings (Peer-Reviewed)

  Koki Ishida, Ilkwon Byun, Ikki Nagaoka, Kousuke Fukumitsu, Masamitsu Tanaka, Satoshi Kawakami, Teruo Tanimoto, Takatsugu Ono, Jangwoo Kim, and Koji Inoue, “SuperNPU: An Extremely Fast Neural Processing Unit Using Superconducting Logic Devices,“ 2020 53rd Annual IEEE/ACM International Symposium on Microarchitecture (MICRO), pp.58–72, Oct. 2020.

• International Proceedings (Peer-Reviewed)

  Ikki Nagaoka, Masamitsu Tanaka, Koji Inoue, Akira Fujimaki, “A 48GHz 5.6mW gate-level-pipelined multiplier using single-flux quantum logic,” IEEE International Solid-State Circuits Conference (ISSCC), pp.460-462, Feb. 2019.

• International Proceedings (Peer-Reviewed)

  Yuichi Inadomi, Tapasya Patki, Koji Inoue, Mutsumi Aoyagi, Barry Rountree, Martin Schulz, David Lowenthal, Yasutaka Wada, Keiichiro Fukazawa, Masatsugu Ueda, Masaaki Kondo, Ikuo Miyoshi, “Analyzing and Mitigating the Impact of Manufacturing Variability in Power-Constrained Supercomputing,” In Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis (SC), No.78, pp.78:1-78:12, Nov. 2015.