Supercomputing Division, Information Technology Center, The University Tokyo

Past systems

This section introduces the changes to the large-scale general-purpose computer systems and supercomputer systems that have been in service at the Information Technology Center (Computer Center) from the past.

System configuration

Systems

General-purpose computer systems

Operational period Model (main storage capacity)
1966 ~ 1973 HITAC 5020 (16 KW) / 5020E (65 KW) + HITAC 5020 (32 KW)
1973 ~ 1980 HITAC 8800 × 3 + HITAC 8700 × 1 (8 MB)
1980 ~ 1982 HITAC M-200H × 8 (64 MB)
1982 ~ 1985 HITAC M-280H × 6 (192 MB)
1986 ~ 1990 HITAC M-680H (128 MB) + HITAC M-682H (384 MB)
1991 ~ 1996
HITAC M-880/310 (MS: 1 GB, ES: 4 GB) + HITAC M-682H (256MB)
1996 ~ 2001 HITACHI MP5800/320 (MS + ES : 10GB)
2001 ~ 2007 Operational support system (MS + ES: 10 GB)

*1W = 4 byte, MS = Main storage device, ES = Extended storage device


Vector-supercomputers

Operational period Model (main storage capacity) Theoretical computational performance
1983 ~ 1987
HITAC S-810/20 (MS : 256 MB, ES : 512 MB)
800 MFlops
1988 ~ 1993 HITAC S-820/80 (MS : 512 MB, ES : 6 GB) 4 GFlops
1993 ~ 1999 HITAC S-3800/480 (MS : 2 GB, ES : 16 GB) 32 GFlops

(Massively) Parallel supercomputers

Operational period Model (main storage capacity) Theoretical computational performance
1996 ~ 2001
HITACHI SR2201 (1024 nodes, 256 MB/nodes) 307.2 GFlops
1999 ~ 2005
HITACHI SR8000 (128 nodes, 8 GB/nodes)
1,024.0 GFlops
2001 ~ 2007 HITACHI SR8000/MPP (144 nodes, 16 GB/nodes) 2,073.6 GFlops
2005 ~ 2007 HITACHI SR11000/J1 (44 nodes, 128 GB/nodes) 5,350.4 GFlops
2007 ~ 2011 HITACHI SR11000/J2 (128 nodes, 128 GB/nodes) 18,841.6 GFlops
2008 ~ 2014 HITACHI HA8000-tc/RS425 (952 nodes) 140,134.4 GFlops
2011 ~ 2017 HITACHI SR16000/M1 (Compute nodes: 56 nodes, 200 GB/node) 54,906.4 GFlops
2012 ~ 2018 FUJITSU PRIMEHPC FX10 (Compute nodes: 4800 nodes) 1.135 PFlops
2014 ~ 2018 FUJITSU PRIMEHPC FX10 (Compute nodes: 576 nodes) 136.2 TFlops