一种基于bank-column缓存划分的多核共享缓存能耗优化方法  

Bank-column Cache Partitioning for Shared Cache Energy Optimization in Multicore Systems

作　　者：张吉赞[1] 苑雅娟[2] 

机构地区：[1]北京理工大学计算机学院,北京100081 [2]沧州医学高等专科学校基础医学部,河北沧州061001

出　　处：《信阳师范学院学报（自然科学版）》2017年第4期631-637,共7页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(61370062)

摘　　要：针对支持IABA(Interference-Aware Bus Arbiter)总线的多核共享缓存能耗问题,提出了一种基于bank-column缓存划分的多核共享缓存能耗优化方法.该方法在保证硬实时任务能够在截止期前完成的前提下,通过优化bank-column缓存划分来减少共享缓存能耗.实验结果表明,在保证硬实时任务能够在截止期前完成的前提下,提出的优化方法能够减少共享缓存能耗,与优化路-组缓存划分相比,35nm制造工艺时至少能够减少约10%的共享缓存能耗.For the shared cache energy in hard real-time multicores with IABA（Interference-Aware Bus Arbiter）bus,a bank-column partitioning optimization method was proposed for the shared cache energy.In this method,the bank-column cache partitioning was optimized to save the shared cache energy on the premise of hard real-time tasks which can be finished before their deadlines.Experimental results demonstrated that the proposal method can effectively reduce the shared cache energy consumption and guarantee that the hard real-time tasks can be finished before their deadlines.Compared with the way-set cache partitioning optimization method,the proposal method can save about 10%energy of the shared cache in 35 nm technology.

关 键 词：硬实时多核系统 共享缓存能耗 bank-column缓存划分 最差情况执行时间 

分 类 号：TP302.7[自动化与计算机技术—计算机系统结构]