基于弱一致性模型软件数据预取策略  

A SOFTWARE CONTROLLED DATA PREFETCHING SCHEME BASED ON WEAK ORDER CONSISTENCY MODEL

作　　者：窦勇[1] 周兴铭[1] 

机构地区：[1]国防科技大学计算机系

出　　处：《软件学报》1997年第2期81-86,共6页Journal of Software

基　　金：国家863高科技项目基金

摘　　要：本文针对分布共享存储器中存在的远地访问大延迟问题，提出了基于弱序一致性模型的存储访问优化策略，主要是利用并行程序中同步操作提供的信息，在同步点成块预取将要被使用的数据．This paper presents a software controlled data prefetching scheme to overcome the delay of remote memory accesses in the physically distributed and logically shared memory system. With the information provided by the parallel programs respecting weak order consistency model, prefetch operations can be arranged at synchronization points to get the data before they are used. This scheme can effectively hide the large latency of non uniform memory access architechtrol model through block operations.

关 键 词：并行处理 体系结构 数据预取 软件 

分 类 号：TP31[自动化与计算机技术—计算机软件与理论]