(同济大学 电信学院 计算机系, 上海 201804)
关键词:嵌入式系统; 动态电压调节; 低功耗设计; 旋转调度
Realtime dynamic voltage scaling algorithm for
lowpower multicore embedded system
WANG Lisheng, GUO Zhenke
(Dept. of Computer, Institute of Telecommunication, Tongji University, Shanghai 201804, China)
Abstract:DVS(dynamic voltage scaling) is one of the most powerful techniques to reduce energy consumption. However, most algorithms are based on uniprocessor and only consider independent tasks. In this situation, DVS will not get the best solution. This paper introduced a technology to reduce energy consumption which used rotation scheduling based on DVS. The algorithm repeatedly regrouped a loop and decreased the energy as much as possible within a timing constraint. Both time and energy overhead during a voltage transition was considered in this work.
Key words:embedded system; DVS; lowpower design; rotation scheduling ......