摘要： 使用Cache有两点好处:减少访存链时间及减轻访存负载.有许多种计算机使用了Cache(如小型机和微型机).本文分析了概率意义下紧耦合多处理机系统引进不同的私有Cache对系统访存负载的影响.结果表明,标量程序得益于标量Cache,而不论向量化程度的高低,均可采用标向量混合Cache.随着紧耦合处理机系统中处理机数目的不断增加,访存冲突会更加严重.大容量的标向量混合Cache将是缓解这一问题的有效途径.＊

关键词: 高速缓存, 多处理机系统, 访存分析

Abstract: The use of cache reduces memory access time and load. Computers, cither minicomputer or microcomputer adopt cache memory technology. In this paper, probability analysis of the effect of tightly-coup-led multiprocessor systemwith different private cache on memory access load shows that scalar programs take ad-vantage of scalar cache, and scalar-vector cache is available to programs with various degree of vectorization ra-tio.Memory access conflict intensifies as the number of processors increases in a tightly-coupled multiprocessor system. Scalar-vector cache with large capacity may be an effective solution to the problem.