基于电压岛的能量和可靠性感知NoC映射  

Energy-and Reliability-aware Mapping for NoC Implemented with Voltage Islands

作　　者：常政威[1] 熊光泽[1] 桑楠[1] 江维[1] 

机构地区：[1]电子科技大学计算机科学与工程学院,成都610054

出　　处：《计算机辅助设计与图形学学报》2009年第1期19-26,共8页Journal of Computer-Aided Design & Computer Graphics

基　　金：国家"八六三"高技术研究发展计划(2006AA01Z173;2007AA01Z131)

摘　　要：面向支持电压岛的NoC平台,定义了可靠性约束下的能量感知NoC映射问题,提出一种基于禁忌搜索的优化方法.设计了一种新的能效变化率驱动的启发式算法,嵌套于NoC设计空间的搜索过程中,在IP核映射解的基础上实现各电压岛的电压映射.实验结果表明,本文算法可显著降低NoC能耗,并高效地确保NoC通信的可靠性要求.The problem of energy-aware mapping for network-on-chip （NoC） implemented with voltage islands under reliability constraints is formulated. A tabu search algorithm is proposed to solve this problem. A novel energy-efficiency gradient driven heuristic is developed to assign the voltages for the voltage islands based on the current configuration of IP mapping during global design space exploration. Experimental results show that the proposed method can efficiently guarantee the reliability goal and obtain significant energy savings.

关 键 词：片上网络 映射 电压岛 可靠性 能效变化率 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]