History of PACS/PAX Series

Blief History of PACS/PAX Computers

Project of PACS/PAX computers was started at Kyoto University in 1977 by Tsutomu Hoshino. The first and second machines PACS-9 and PAX-32 were made at Kyoto University in 1978 and 1980 respectively, and the project was moved to the University of Tsukuba in 1981.

At the university of Tsukuba, PAX-128, PAX-64J, QCDPAX, and CP-PACS were constructed. The latest machine CP-PACS was built in 1996, and was upgraded to have 2048 nodes.

PACS/PAX Series

Machines Year Performance # PU CPU
PACS-9 1978 7KFLOPS 9 MC6800
PAX-32 1980 0.5MFLOPS 32 MC6800/AM9511
PAX-128 1983 4MFLOPS 128 MC68B00/AM9511-4
PAX-32J 1984 3MFLOPS 32 DCJ-11
QCDPAX 1989 14GFLOPS 480 MC68020/L64133
CP-PACS 1996 614GFLOPS 2048 PA-RISC
PACS-CS 2006 14.3TFLOPS 2560 Xeon
HA-PACS 2012 >1PFLOPS 268 GPU: NVIDIA M2090
CPU: Intel E5 (Sandy Bridge-EP)


PACS-9(1978)

 


PAX-32(1980)

 


PAX-128(1983)

 


PAX-32J(1984)

 


QCDPAX(1989)

 


CP-PACS(1996)

 


PACS-CS(2006)