Title :
Using nonvolatile processors to reduce leakage in power management approaches
Author :
Hehe Li ; Yongpan Liu ; Yiqun Wang ; Rong Luo ; Huazhong Yang
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
Over the last few years, static energy(mainly induced by leakage current) has dominated a large portion of total energy consumption in chips. Although power management approaches have been used to reduce active power, they are ineffective in reducing static power when applied in normal volatile processors. In this paper, we explored the usage of nonvolatile processors(NVPs), which are able to maintain states during power failures, to reduce leakage power in power management approaches. We evaluated several existing power management strategies and experimental results show that using NVPs in the leakage-aware power management is able to save 15% extra energy and achieve 30% more static energy savings compared with volatile processors.
Keywords :
energy conservation; energy consumption; leakage currents; low-power electronics; microprocessor chips; NVP; active power; energy consumption; leakage current; leakage-aware power management; nonvolatile processors; power failures; power management approaches; power management strategies; static energy savings; Voltage control;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2014 IEEE International Conference on
DOI :
10.1109/EDSSC.2014.7061235