基于动态Voronoi图的多核处理器非均匀采样热重构改进方法  

Improved Thermal Reconstruction Method Based on Dynamic Voronoi Diagram with Non-uniform Sampling on Multicore Processors

作　　者：李鑫[1] 戎蒙恬[1] 刘涛[1] 周亮[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《上海交通大学学报》2013年第7期1087-1092,1098,共7页Journal of Shanghai Jiaotong University

基　　金：国家重点基础研究发展规划(973)项目(2009CB320206);国家自然科学基金资助项目(60821062)

摘　　要：微处理器热监控中不精确的热点温度估计会导致错误的预警和不必要的响应.为了更好的监控微处理器的运行温度,提出了一种基于动态Voronoi图的多核处理器非均匀采样热重构改进方法.实验结果表明:该方法比现有的频谱技术在热重构平均温度误差和热点温度误差精度方面有了一定提高,能够有效运用在动态热管理技术中实现精确的全局和局部温度监控.The lower accuracy of hot spot temperature estimation on microprocessors can lead to a higher probability of false alarms and unnecessary responses,which results in a reduction of the reliability of computer systems.In this paper,an improved thermal reconstruction method based on dynamic Voronoi diagram with non-uniform sampling on multicore processors has been proposed.Experimental results indicate that the proposed method significantly outperforms spectral analysis techniques in both thermal reconstruction error and hot spot temperature error.It can be better applied in dynamic thermal management techniques to achieve global and local thermal monitoring.

关 键 词：微处理器 动态热管理 VORONOI图 热重构 

分 类 号：TP368[自动化与计算机技术—计算机系统结构] TN47[自动化与计算机技术—计算机科学与技术]