Supercomputers/By country/Japan
106 systems
Japan
69 of 106 systems we track in Japan are currently running, with a combined Rmax of 1.39 EFlop/s (7.8% of the running Rmax across every country in this dataset). 27 sites here are located on the map.
22 of these areAI datacenters. 9 quantum computers are recorded here: Reimei (Trapped ion, 20 qubits), G-QuAT System F (Superconducting, 64 qubits), G-QuAT System Q (Neutral atom, 260 qubits), RIKEN IBM Quantum System Two (Superconducting, 156 qubits), University of Tokyo IBM Quantum System One (Superconducting, 127 qubits), RIKEN Fujitsu 256-qubit (Superconducting, 256 qubits), IQM Radiance 20 for TOYO at G-QuAT (Superconducting, 20 qubits), IQM Spark at TOYO R&D Center (Superconducting) and 1 more in the quantum section.
Systems
| System | Operator | Rmax | Status | First operational |
|---|---|---|---|---|
| ai& Tenstorrent Galaxy Supercluster | ai& | - | operational | - |
| ROQUO | RIKEN | 19.80 PFlop/s | operational | 2026-06-19 |
| KDDI GPU Cloud | KDDI | 22.21 PFlop/s | operational | 2026-01 |
| RIKYU | RIKEN | - | operational | - |
| SEIRAN | Tokyo University of Technology | 3.32 PFlop/s | operational | 2025-10 |
| OpenCanvas GPUaaS SP1 | NTT DATA Japan | 17.53 PFlop/s | operational | 2025-10 |
| FugakuNEXT | RIKEN | - | planned | - |
| CHIE-4 | SoftBank Corp. | 135.4 PFlop/s | operational | 2025-07 |
| Plasma Simulator Sosei | NIFS | - | operational | 2025-07 |
| ABCI 3.0 | AIST | 145.1 PFlop/s | operational | 2025-06 |
| ABCI-Q | AIST | 74.58 PFlop/s | operational | 2025-06 |
| SoftBank Tomakomai AI Data Center | SoftBank Corp. | - | under construction | - |
| Miyabi | JCAHPC | 46.80 PFlop/s | operational | 2025-01 |
| FPT AI Factory Japan | FPT Corporation | 49.85 PFlop/s | operational | 2025 |
| GMO GPU Cloud | GMO Internet Group | 10.05 PFlop/s | operational | 2024-11 |
| CHIE-2 | SoftBank Corp. | 89.78 PFlop/s | operational | 2024-10 |
| Genkai | RIIT, Kyushu University | 6.22 PFlop/s | operational | 2024-10 |
| SoftBank Sakai AI Data Center | SoftBank Corp. | - | planned | - |
| Tokyo-1 | Xeureka | - | operational | 2024-02 |
| CHIE-3 | SoftBank Corp. | 91.94 PFlop/s | operational | 2024 |
| TSUBAME4.0 | Institute of Science Tokyo | 39.62 PFlop/s | operational | 2024 |
| HOKUSAI BigWaterfall 2 | RIKEN | - | operational | 2023-12-04 |
| Camphor 3 | Kyoto University ACCMS | 6.71 PFlop/s | operational | 2023-10 |
| AOBA-S | Cyberscience Center, Tohoku University | 17.22 PFlop/s | operational | 2023-08 |
| JMA PRIMEHPC FX1000 | Japan Meteorological Agency | 13.37 PFlop/s | operational | 2023-03 |
| Laurel 3 | Kyoto University ACCMS | - | operational | 2023 |
| Pegasus (Tsukuba) | University of Tsukuba | 4.34 PFlop/s | operational | - |
| NEC AI Research Supercomputer | NEC | - | operational | 2022-05 |
| Wisteria/BDEC-01 | University of Tokyo | 22.12 PFlop/s | operational | 2021-05 |
| SQUID | D3 Center, Osaka University | 6.11 PFlop/s | operational | 2021-05 |
| Earth Simulator 4 | JAMSTEC | 9.99 PFlop/s | operational | 2021-03 |
| mdx I | University of Tokyo | - | operational | 2021 |
| TOKI-SORA | JAXA | 16.59 PFlop/s | operational | 2020-11 |
| Ohtaka | ISSP Supercomputer Center | 3.49 PFlop/s | operational | 2020-10 |
| Flow | Information Technology Center, Nagoya University | 6.62 PFlop/s | operational | 2020-07 |
| Fugaku | RIKEN | 442.0 PFlop/s | operational | 2020-06 |
| MN-3 | Preferred Networks | 2.18 PFlop/s | operational | 2020-05 |
| NIMS Materials Simulator | NIMS | 3.08 PFlop/s | operational | 2020-03 |
| Raijin | NIFS | 7.89 PFlop/s | decommissioned | 2020 |
| NA-1 | PEZY Computing | 1.30 PFlop/s | operational | 2019-11 |
| MN-2 | Preferred Networks | - | operational | 2019-07 |
| Cygnus | University of Tsukuba | 1.58 PFlop/s | decommissioned | 2019 |
| Oakbridge-CX | University of Tokyo | 4.29 PFlop/s | decommissioned | 2019 |
| A64FX Prototype | Fujitsu | 2.00 PFlop/s | operational | 2019 |
| ABCI | AIST | 19.88 PFlop/s | decommissioned | 2018-08 |
| AFI-NITY | Institute of Fluid Science, Tohoku University | 1.69 PFlop/s | operational | 2018-08 |
| ATERUI II | National Astronomical Observatory of Japan | 2.09 PFlop/s | operational | 2018-06 |
| JFRS-1 | QST | 2.79 PFlop/s | operational | 2018-06 |
| ITO Subsystem A | RIIT, Kyushu University | 4.54 PFlop/s | decommissioned | 2018 |
| IMS Molecular Simulator | Institute for Molecular Science | 1.79 PFlop/s | operational | 2017-10-01 |
| TSUBAME3.0 | Institute of Science Tokyo | 8.13 PFlop/s | decommissioned | 2017-08 |
| Gyoukou | JAMSTEC | 19.14 PFlop/s | decommissioned | 2017-06 |
| HOKUSAI BigWaterfall | RIKEN | 1.60 PFlop/s | operational | 2017 |
| RAIDEN | RIKEN | 1.21 PFlop/s | operational | 2017 |
| Reedbush-H | University of Tokyo | 800.00 TFlop/s | decommissioned | 2017 |
| Reedbush-L | University of Tokyo | 810.00 TFlop/s | decommissioned | 2017 |
| Kukai | Yahoo Japan | 460.70 TFlop/s | operational | 2017 |
| AIST AI Cloud | AIST | 961.00 TFlop/s | operational | 2017 |
| Suiren2 | KEK | 798.00 TFlop/s | operational | 2017 |
| JAIST Cray XC40 | JAIST | 584.77 TFlop/s | decommissioned | 2017 |
| Oakforest-PACS | JCAHPC | 13.55 PFlop/s | decommissioned | 2016-10 |
| GOSAT-2 RCF2 | NIES | 770.40 TFlop/s | operational | 2016-03 |
| Camphor 2 | Kyoto University ACCMS | 3.06 PFlop/s | operational | 2016 |
| Sakura (PEZY) | PEZY Computing | 824.70 TFlop/s | operational | 2016 |
| Laurel 2 | Kyoto University ACCMS | 821.90 TFlop/s | operational | 2016 |
| Reedbush-U | University of Tokyo | 459.83 TFlop/s | decommissioned | 2016 |
| Sekirei (ISSP System B) | ISSP Supercomputer Center | 1.18 PFlop/s | decommissioned | 2015-07 |
| HOKUSAI GreatWave | RIKEN | 990.00 TFlop/s | decommissioned | 2015-04 |
| Shirokane3 | University of Tokyo | 342.58 TFlop/s | operational | 2015-04 |
| Earth Simulator 3 | JAMSTEC | - | decommissioned | 2015 |
| Shoubu | RIKEN | 610.00 TFlop/s | operational | 2015 |
| Nagoya FX100 | Information Technology Center, Nagoya University | 2.91 PFlop/s | decommissioned | 2015 |
| Plasma Simulator FX100 | NIFS | 2.38 PFlop/s | decommissioned | 2015 |
| SORA-MA | JAXA | 3.16 PFlop/s | operational | 2015 |
| Sango | OIST | 252.70 TFlop/s | operational | 2015 |
| COMA (PACS-IX) | University of Tsukuba | 746.00 TFlop/s | operational | 2014-04-15 |
| Camellia (Kyoto) | Kyoto University ACCMS | 380.50 TFlop/s | operational | 2014 |
| TSUBAME-KFC | Institute of Science Tokyo | 125.20 TFlop/s | upgraded | 2013-10 |
| Oakleaf-FX | University of Tokyo | 1.04 PFlop/s | decommissioned | 2012-04 |
| Helios (IFERC) | IFERC-CSC | 1.24 PFlop/s | decommissioned | 2012 |
| HA-PACS | University of Tsukuba | 421.60 TFlop/s | decommissioned | 2012 |
| KEK SAKURA | KEK | 536.66 TFlop/s | operational | 2012 |
| K computer | RIKEN | 10.51 PFlop/s | decommissioned | 2011-06 |
| TSUBAME2.0 | Institute of Science Tokyo | 1.19 PFlop/s | upgraded | 2010-11 |
| JSS FX1 | JAXA | 110.60 TFlop/s | decommissioned | 2009-04 |
| Earth Simulator 2 | JAMSTEC | 122.40 TFlop/s | decommissioned | 2009-03 |
| TSUBAME1.0 | Institute of Science Tokyo | 38.18 TFlop/s | decommissioned | 2006-04 |
| Earth Simulator | JAMSTEC | 35.86 TFlop/s | decommissioned | 2002-03 |
| Osaka SX-5/128M8 | D3 Center, Osaka University | 1.19 TFlop/s | operational | 2001-01 |
| UTokyo SR8000/MPP | University of Tokyo | 1.71 TFlop/s | decommissioned | 2001 |
| KEK SR8000-F1/100 | KEK | 917.0 GFlop/s | decommissioned | 2000-03 |
| ISSP SR8000-F1/60 | ISSP Supercomputer Center | 577.0 GFlop/s | decommissioned | 2000-03 |
| UTokyo SR8000/128 | University of Tokyo | 873.0 GFlop/s | decommissioned | 1999 |
| Tohoku SX-4/128H4 | Cyberscience Center, Tohoku University | 244.0 GFlop/s | operational | 1998-01 |
| CP-PACS | University of Tsukuba | 368.2 GFlop/s | decommissioned | 1996-10 |
| Hitachi SR2201/1024 | University of Tokyo | 220.4 GFlop/s | decommissioned | 1996 |
| Toyota CRDL SX-4/20 | Toyota Central R&D Labs | 38.7 GFlop/s | operational | 1996 |
| KEK VPP500/80 | KEK | 98.9 GFlop/s | decommissioned | 1995-01 |
| Tohoku SX-3/44R | Cyberscience Center, Tohoku University | 23.2 GFlop/s | operational | 1994-01 |
| Numerical Wind Tunnel | National Aerospace Laboratory of Japan | 124.0 GFlop/s | decommissioned | 1993-01 |
| UTokyo HITAC S-3800/480 | University of Tokyo | 28.4 GFlop/s | decommissioned | 1993 |
| SAKURAONE | SAKURA internet | 33.95 PFlop/s | operational | - |
| Grand Chariot 2 | IIC, Hokkaido University | 4.38 PFlop/s | operational | - |
| Shoubu System B | RIKEN | 1.06 PFlop/s | operational | - |
| Cycloud ML Platform | CyberAgent | 10.82 PFlop/s | operational | - |
| DEGIMA | Nagasaki University | - | operational | - |
Sites
- RIKEN Center for Computational Science · 5 systems
- Earth Simulator Center · 5 systems
- Institute of Science Tokyo, Ookayama · 5 systems
- Tsukuba Center for Computational Sciences · 5 systems
- University of Tokyo Computer Centre · 4 systems
- RIKEN Wako Campus · 4 systems
- ABCI Data Center, Kashiwa · 3 systems
- SoftBank Corp. (undisclosed site) · 3 systems · not located
- ISSP Supercomputer Center · 3 systems · not located
- Tohoku University Cyberscience Center · 3 systems
- KEK Tsukuba Campus · 3 systems
- University of Tokyo, Kashiwa Campus · 2 systems
- JCAHPC (Miyabi) · 2 systems · not located
- Nagoya University Information Technology Center · 2 systems
- Preferred Networks (Yokohama) · 2 systems
- JAXA Chofu Aerospace Center · 2 systems
- QST Rokkasho Fusion Institute · 2 systems
- Kyushu University Ito Campus · 2 systems
- National Aerospace Laboratory, Chofu · 1 system
- FPT AI Factory (undisclosed site) · 1 system · not located
- Osaka University D3 Center (SQUID) · 1 system · not located
- SAKURA internet (Ishikari) · 1 system
- Japan Meteorological Agency (Tokyo) · 1 system
- IFERC Computer Simulation Centre (Rokkasho) · 1 system
- Hokkaido University Sapporo Campus · 1 system
- Tokyo University of Technology Hachioji Campus · 1 system
- Tomakomai Data Center Campus · 1 system
- Fujitsu Numazu Plant · 1 system · not located
- KDDI Osaka Sakai Data Center · 1 system
- SoftBank Sakai Plant Site · 1 system
- Tohoku IFS Sendai · 1 system
- Nagasaki Advanced Computing Center · 1 system
- JAIST Nomi Campus · 1 system
Country is recorded on each system row, following where the operator is headquartered or the site is sited, not supplier nationality. See all countries or domestic substitution for how much of each country's compute is fully domestically supplied.