| URL: | http://www.ism.ac.jp/index-e.html | 
|---|---|
| Segment | Research | 
| City: | Tokyo | 
| Country/Region: | Japan | 
| System | Year | Vendor | Cores | Rmax (GFlop/s) | Rpeak (GFlop/s) | 
|---|---|---|---|---|---|
| HPE SGI 8600, Xeon Gold 6154 18C 3GHz, Infiniband EDR | 2018 | HPE | 13,824 | 941,277 | 1,327,104 | 
| Supercomputer System for Statistical Science "I" - SGI ICE X, Intel Xeon E5-2697v2/E5-2680v3 12C/12C 2.7GHz/2.5GHz, Infiniband FDR, Intel Xeon Phi 5120D | 2015 | HPE (SGI) | 18,624 | 363,783 | 434,964.5 | 
| PRIMERGY RX200S5 Cluster, Xeon X5570 2.93GHz, Infiniband QDR | 2009 | Fujitsu | 2,880 | 31,180 | 33,753 | 
| SGI Altix 1.3 GHz | 2004 | HPE (SGI) | 256 | 1,142 | 1,331.2 | 
| SR8000/20 | 1999 | Hitachi | 20 | 144 | 160 | 
| SP2/48 | 1995 | IBM | 48 | 9.5 | 12.8 | 
| List | Highest Rank | Systems | 
|---|---|---|
| 2018/11 | 462 | 1 | 
| 2016/11 | 476 | 1 | 
| 2016/06 | 364 | 1 | 
| 2015/11 | 265 | 1 | 
| 2015/06 | 375 | 1 | 
| 2014/11 | 301 | 1 | 
| 2010/11 | 495 | 1 | 
| 2010/06 | 301 | 1 | 
| 2009/11 | 207 | 1 | 
| 2004/11 | 302 | 1 | 
| 2004/06 | 196 | 1 | 
| 2002/06 | 466 | 1 | 
| 2001/11 | 258 | 1 | 
| 2001/06 | 154 | 1 | 
| 2000/11 | 125 | 1 | 
| 2000/06 | 89 | 1 | 
| 1999/11 | 63 | 1 | 
| 1999/06 | 51 | 1 | 
| 1997/11 | 496 | 1 | 
| 1997/06 | 369 | 1 | 
| 1996/11 | 204 | 1 | 
| 1996/06 | 164 | 1 | 
| 1995/11 | 127 | 1 |