SOC软硬件协同设计中多任务性能评估算法  

Performance Evaluation Method of Multi-Task in SOC Hardware/Software Codesign

作　　者：李栋娜[1] 曹阳[1] 张奇[1] 郑刚[1] 

机构地区：[1]武汉大学电子信息学院,湖北武汉430072

出　　处：《计算机应用研究》2005年第6期52-55,共4页Application Research of Computers

基　　金：国家"863"计划资助项目(2002AA1Z1490)

摘　　要：在分析现有的性能评估方法之上,提出了用MTLS算法对软硬件划分结果进行性能评估,验证系统软硬件划分的优劣。并且针对单任务图描述多CPU系统结构的不足,提出采用多任务图来描述的方法。首先搭建了软硬件协同设计的平台并描述了软硬件协同设计的流程,其次对目标系统进行形式化的描述,最后重点阐述了多任务图的MTLS性能评估算法,并与MD,HNF,HLHET三种算法进行了比较。实验结果表明,提出的MTLS算法比其他三种算法优越。MTLS algorithm is proposed to evaluate the result of Software/Hardware partition and verify the validity of the partition. Multi-Task graph is proposed since the single task graph is not enough to describe the multi-processors system. Firstly, a Software/Hardware codesign system is set up and the flow of Software/Hardware codesign is described. Secondly, the object system is formalized by DAGs. Lastly, MTLS algorithm is discussed in detail. In order to verify the validity of the method, three previous algorithms are suggested. The performance comparison study shows that MTLS algorithm is better than others.

关 键 词：调度 分配 性能评估 软硬件划分 多任务图 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]