Title :
Energy minimization of real-time tasks on variable voltage processors with transition energy overhead
Author :
Zhang, Yumin ; Hu, Xiaobo Sharon ; Chen, Danny Z.
Author_Institution :
Synopsys Inc., Mountain View, CA, USA
Abstract :
In this paper, we address the problem of minimizing energy consumption of real-time tasks on variable voltage processors whose transition energy overhead is not negligible. Voltage settings with minimum number of transitions are found first and sequences of lower voltage cycles are evaluated to decide voltage for each cycle of every task. Experimental results demonstrate that our approach can reduce energy consumed by transitions from 41% to 8% and save more energy.
Keywords :
low-power electronics; microprocessor chips; minimisation; processor scheduling; real-time systems; timing; energy consumption minimization; real-time tasks; transition energy overhead; variable voltage processors; Computer science; Control systems; Energy consumption; Energy management; Multiprocessing systems; Power engineering and energy; Power system management; Processor scheduling; Timing; Voltage;
Conference_Titel :
Design Automation Conference, 2003. Proceedings of the ASP-DAC 2003. Asia and South Pacific
Print_ISBN :
0-7803-7659-5
DOI :
10.1109/ASPDAC.2003.1194995