多机可缩放性高速缓冲存储器一致性协议分析  

Analysis on Coincidence Protocol of Multi-CPU Machine's Scaleable Cache

作　　者：王钰[1] 

机构地区：[1]西安邮电学院计算机科学与技术系,陕西西安710121

出　　处：《计算机技术与发展》2009年第2期94-97,共4页Computer Technology and Development

基　　金：陕西省自然科学基金(2004F28)

摘　　要：分析了可缩放共享存储器多机系统Cache一致性协议的软硬件解决方案。集中式控制方法只适应于规模适中的多机系统,这是因为数据块共享信息存放在系统存储器中,成为性能提高的瓶颈;分布式控制方法允许系统拥有多个存储器控制部件,适合于大规模的多机系统。基于软件的Cache一致性技术建立在对源程序的预处理基础上,基本不需要或只需要很少的额外硬件。处理机数量的变化并不改变源程序的属性,编译程序的分析结果适用于任何规模的多处理机系统,具有很强的可缩放性。Presents the scheme of the hardware and software solution for the cache coineidence protocol on the multi - CPU machine with a scalable memory system. Centralized control mode can be only used in the moderate multi - CPU system, just because the shared data is stored in the memory of the system, and which becomes the main reason to improve the system performance; Distfibuted control mode permits the system to have multi memory control units, and it is suitable to the large - scale multi - CPU system. The software solution of cache coincidence is based on the pretreatment for the source program, so that none or a few hardware is required. The change of the number of the CPU in the system does not change the attributes of the source program, and the analyzing result of the complier suits to any scale multi - CPU system, so that the software method is highly scaleable.

关 键 词：可缩放性 CACHE一致性 多微机系统 

分 类 号：TN957.51[电子电信—信号与信息处理]