基于语法树的实时动态电压调节低功耗算法  

A Real-Time Dynamic Voltage Scaling Algorithm Based on Syntax Tree for Low Power

作　　者：易会战[1] 陈娟[1] 杨学军[1] 刘喆[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：《软件学报》2005年第10期1726-1734,共9页Journal of Software

基　　金：国家高技术研究发展计划(863)~~

摘　　要：动态电压调节是一种有效的低功耗技术.使用这种技术,编译器指导的动态电压调节能够有效地降低系统功耗.提出了基于语言语法树的实时动态电压调节低功耗算法.该算法在静态程序最差时间分析方法的辅助下,通过在程序内部自动插入电压调节代码来实现电压调节.在RTLPower(real-timelow-power)实时低功耗系统上完成了算法的实现,对嵌入式测试,程序集的初步测试证明该算法最大可节省50%的能量消耗.Dynamic voltage scaling is an effective low-power technique. Using the technique, compiler-directed dynamic voltage scaling can reduce computer＇s energy consumption effectively. Based on programming language＇s syntax tree, a real-time dynamic voltage scaling algorithm for low power is presented, and the algorithm assisted with static timing analysis could make intra-task dynamic voltage scaling by automatically inserting dynamic voltage scaling source code. The algorithm has been realized in the real-time low-power system RTLPower, and obtained energy reduction of up to 50 percent over no power management in some real-time embedded benchmarks.

关 键 词：编译器 语法树 实时 动态电压调节 低功耗 RTLPower 

分 类 号：TP314[自动化与计算机技术—计算机软件与理论]