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Irie-Kadomoto Lab
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The lab reinvents the very mechanisms of how computers work.
AboutAbout the lab
Building the future of the information society through computers
The Irie-Kadomoto Lab researches computer systems and their applications, working to build the future of the information society.
The lab works on realizing more powerful computers, as well as lighter and more flexible ones.
It also studies user-support services that are possible precisely because of these new kinds of computers.
A representative research topic is STRAIGHT, a processor architecture that originated in the lab.
Key terms
- Architecture
- The rules governing a computer's instructions and the way its internals are built. It affects performance and power efficiency.
- Approximate computing
- A way of computing that deliberately lowers precision in order to gain speed and power savings.
- Cache memory
- A small, fast memory placed close to the processor that holds frequently used data and instructions.
NewsLab news
A project researcher received the Young Researcher Encouragement Award from the Special Interest Group on System Architecture of the Information Processing Society of Japan
A student received the xSIG Young Researcher Award
A student received the Best UG Student Award at xSIG 2026
A student received the Best Research Award at xSIG 2024
A paper from the lab received the FY2023 Paper Award of the Institute of Electronics, Information and Communication Engineers (IEICE)
ResearchResearch themes
The lab researches computer systems and their applications, aiming to build the future of the information society. Its work covers a wide range, from processor architecture to computing platforms, the physical form of hardware, and how memory is used.
*Illustrative imageArchitecture "STRAIGHT"
A computer architecture that originated in this lab and dramatically improves the power efficiency and performance of processors. Unlike conventional RISC, it features an instruction set in which registers are never overwritten.
*Illustrative imageUltra-Efficient Approximate Computing Platform
Lowering computational precision reduces load, which leads to faster execution and lower power consumption. Because the required precision varies with the input and the state of the user, the lab studies mechanisms that automatically adjust the degree of approximation at runtime.
*Illustrative imageShape-Reconfigurable Computer System
A computer built by combining many small chips, whose shape and functions can both be changed freely. The chips communicate with one another wirelessly and determine their positions relative to neighboring chips as well as the shape of the entire system.
*Illustrative imageTiming-Aware Prefetching
Prefetching is a technique that predicts data and instructions that will be needed in the future and moves them into cache memory in advance. This research explores methods that focus on the timing of that transfer.
MembersFaculty
The members of the Irie-Kadomoto Lab consist of faculty, a secretary, project researchers, doctoral and master's students, and undergraduate students working on their graduation theses.As of 2026
- ProfessorHidetsugu IriePublications ↗
- LecturerJunichiro KadomotoPublications ↗
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: “12-inch silicon wafer” Peellden / CC BY-SA 3.0 (cropped)
- Architecture "STRAIGHT": “Hitachi HD61700 microprocessor top metal die shot - register file closeup” Piotr433 / CC0 (cropped)
- Ultra-Efficient Approximate Computing Platform: “01 JPEG JPG compression image quality degradation - comparison of photo quality and file size saved with different quality settings” Marek Ślusarczyk (Tupungato) Photo portfolio / CC BY 3.0 (cropped)
- Shape-Reconfigurable Computer System: “G3dock” Markyim at en.wikipedia / CC BY 2.5 (cropped)
- Timing-Aware Prefetching: “8K Ferritkernspeicher” Masar at de.wikipedia / CC BY-SA 3.0 de (cropped)
- Related lab (Morikawa-Narusue Lab): “CSIRO ScienceImage 3876 A remote sensing node part of CSIROs Fleck wireless sensor network technology” Stephan Brosnan, CSIRO / CC BY 3.0 (cropped)
- Related lab (Matsuura Lab): “BalticServers data center” BalticServers.com / CC BY-SA 3.0 (cropped)
- Related lab (Esaki-Ochiai Lab): “Ethernet Patch Panel” Kbh3rd / CC BY 4.0 (cropped)
- Related lab (Minematsu-Saito Lab): “Long-window reassigned spectrogram of speech” Kelly Fitz / CC BY-SA 3.0 (cropped)
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