可重构系统功耗相关的硬件任务调度算法

Energy-Efficient Hardware Task Scheduling Algorithm for Reconfigurable Systems

面向可重构系统,提出了一种功耗相关的硬件任务调度算法(Energy-Efficient Hardware Task Schedu-ling,EEHTS)。动态电压调整(Dynamic Voltage Scaling,DVS)技术通过在软件任务运行时动态改变CPU的运行电压而降低系统功耗。类似地,EEHTS算法在硬件任务调度时动态改变FPGA的工作频率,达到降低功耗的目的。模拟实验结果表明,EEHTS算法在不影响硬件任务截止期要求的前提下,可以有效降低系统功耗。

EEHTS （Energy-Efficient Hardware Task Scheduling） ,an on-line hardware task scheduling for reconfigurable system, is proposed. Similar to DVS （Dynamic Voltage Scaling）which dynamically changes CPU voltage to reduce energy consumption, EE- HTS changes the working frequency of FPGA in hardware task scheduling to achieve the same goal. Experimental results show that the algorithm presented can significantly reduce energy consumption without affecting the deadline of hardware task.