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Yoshinaga Lab
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The lab studies the design and speedup of distributed and parallel computers, from hardware to applications.
AboutAbout the lab
Connecting computers and drawing out their performance
The Yoshinaga Lab studies the design of distributed and parallel computers, in which multiple computers are connected over a network, and the programming that achieves high performance on them.
The lab covers a wide range from architecture to applications, including optical communication, data processing with reconfigurable devices (FPGAs), and cloud virtualization environments.
The lab's website is shared with the Celimuge Lab, and the introduction to the Yoshinaga Lab is on the "Yoshinaga Lab Themes" page.
Key terms
- FPGA
- A reconfigurable device whose circuit configuration can be rewritten later. In this lab, it takes on part of the communication and computation.
- Optical interconnect
- A communication technology that connects chips and similar components with light. Unlike electrical packet communication, it uses circuit switching or something similar.
- Virtual machine
- A computer created virtually on the cloud. Many of them run on top of a physical machine.
NewsLab news
View More ↗ResearchResearch themes
To draw out and make full use of the maximum performance of distributed and parallel computers, the lab conducts research across architecture, system software, and applications. It covers everything from network design to high-speed communication, data analysis, and the cloud.
*Illustrative imageResearch on distributed and parallel computers
The lab studies computers that link multiple machines over a network to achieve far higher processing capability than a single machine. It examines how information is exchanged and coordinated, how to handle failures, and how applications can make full use of the environment.
*Illustrative imageOptical interconnect technology
Optical on-chip networks and chip-to-chip optical interconnects are attracting attention as network technologies that achieve both lower power consumption and higher performance in supercomputers. The lab studies new communication schemes suited to light, high-performance and highly reliable network configurations, and high-speed communication libraries.
*Illustrative imageBig data analysis supported by dedicated hardware
The lab develops hardware that tightly couples optical networks and storage through reconfigurable devices (FPGAs). By having these devices take on part of the communication processing and computation, the lab aims to build computer systems for big data analysis that integrate data access and computation.
*Illustrative imageThe cloud as computing resources
The lab studies systems in which a resource pool is set up on the computers that make up a cloud, so that virtual machines can use just the functions and performance they need, when they need them. Using configurations ranging from minimal virtual machines to ones with GPUs and powerful processors, the lab works to increase the performance that can be obtained for a given amount of energy consumed.
MembersFaculty
The members of the Yoshinaga Lab are faculty, doctoral students, master's students, and undergraduate students doing graduation research.As of 2025
- ProfessorTsutomu Yoshinaga
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Google's First Production Server (1999) rack - Computer History Museum ( by Carlo Nardone)” Carlo Nardone from Roma, Italy / CC BY-SA 2.0 (cropped)
- Research on distributed and parallel computers: “Google's First Production Server (1999) detail - Computer History Museum ( by Carlo Nardone)” Carlo Nardone from Roma, Italy / CC BY-SA 2.0 (cropped)
- Optical interconnect technology: “Optical fiber cable-01ASD” Asurnipal / CC BY-SA 4.0 (cropped)
- Big data analysis supported by dedicated hardware: “NOIRLab HQ Server Racks (6V6A0395-CC)” NOIRLab/NSF/AURA/T. Slovinský / CC BY 4.0 (cropped)
- The cloud as computing resources: “PDC server room” Esquilo / CC BY-SA 3.0 (cropped)
- Related lab (策力木格 研究室): “Traffic information sign, M2, Belfast - geograph.org.uk - 3854949” Albert Bridge / CC BY-SA 2.0 (cropped)
- Related lab (本多 弘樹・三輪 忍・八巻 隼人 研究室): “Network switches” ShakataGaNai / CC BY-SA 3.0 (cropped)
- Related lab (成見 哲 研究室): “Tesla-NVIDIA GPU cluster ( )” ChrisDag / CC BY 2.0 (cropped)
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