Title :
Fine grained power analysis and low-power techniques of a 128GFLOPS/58W SPARC64™ VIIIfx processor for peta-scale computing
Author :
Okano, Hiroshi ; Kawabe, Yukihito ; Kan, Ryuji ; Yoshida, Toshio ; Yamazaki, Iwao ; Sakurai, Hitoshi ; Hondou, Mikio ; Matsui, Nobuyuki ; Yamashita, Hideo ; Nakada, Tatsumi ; Maruyama, Takumi ; Asakawa, Takeo
Author_Institution :
Fujitsu Ltd., Kawasaki, Japan
Abstract :
An 8-core SPARC64™ VIIIfx processor is fabricated in a 45nm CMOS process and achieves a peak performance of 128GFLOPS. Measured results show that the processor consumes only 58W of power when executing a maximum power program. Fine-grained power analysis was used to tune the micro-architecture for low power consumption, and circuit-level low-power techniques were developed. Water cooling and supply voltage adjustment contribute to power reduction at the system level.
Keywords :
CMOS integrated circuits; computer architecture; microprocessor chips; multiprocessing systems; power aware computing; 128GFLOPS; CMOS process; SPARC64™ VIIIfx processor; circuit-level low-power techniques; micro-architecture; peta-scale computing; power analysis; Choppers; Clocks; Latches; Microprocessors; Power demand; Power measurement; Random access memory; HPC; power analysis and low power; processor;
Conference_Titel :
VLSI Circuits (VLSIC), 2010 IEEE Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-5454-9
DOI :
10.1109/VLSIC.2010.5560313
