一种编译指导的实时动态电压调节低功耗算法  

A compiler-directed real-time dynamic voltage scaling algorithm for low power

作　　者：刘喆[1] 易会战[1] 杨学军[1] 

机构地区：[1]国防科学技术大学计算机学院,湖南长沙410073

出　　处：《华中科技大学学报（自然科学版）》2005年第z1期117-120,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：高性能软件重大专项基金资助项目(2004AA1Z2210).

摘　　要：提出了一种编译指导的实时动态电压调节低功耗算法.算法在编译器的帮助下,在条件语句,循环语句等影响程序实际执行时间的控制语句结构中设置电压调节点,插入电压调节代码,从而最大限度地利用了程序运行时的空闲时间,达到了降低系统功耗的效果.在RTLPower实时低功耗系统上对算法进行了实验,实验结果表明该算法可以减少50%的能量消耗.In this paper,we implement a compiler-directed realtime dynamic voltage scaling algorithm for low power.Our algorithm is completed through setting dynamic voltage scaling points and inserting dynamic voltage scaling code at condition statements and loop statements,which inflect program execution time.Our algorithm makes full use of the slack time for the running program and effectively reduces system power consumption.We do experiments in the real-time low-power system RTLPower,and the experimental results show that the proposed algorithm can reduce up to 50?% energy consumption.

关 键 词：编译器 实时 动态电压调节 RTLPower 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]