一种精确的支持多播的MIN性能分析模型  

A Rrecise MIN Performance Analysis Model Which Supports Multicasting

作　　者：孙全宝[1] 张民选[1] 肖立权[1] 

机构地区：[1]国防科技大学计算机学院,湖南长沙410073

出　　处：《计算机工程与科学》2008年第8期4-7,共4页Computer Engineering & Science

基　　金：国家自然科学基金资助项目(60633050)

摘　　要：使用分析模型对MIN的性能进行预测能够取得较好的精度,效率远高于模拟模型。本文深入分析了MIN交换单元输入端口状态之间的转换关系和相邻端口状态的相关性,对输入端口状态进行了重新定义,使用概率论和排队论的方法建立了一个精确的、支持多播的MIN性能分析模型。本文在端口状态转换中使用了条件概率,更加准确地反映了MIN执行报文交换的实际操作过程。实验结果显示,使用本模型可以将延迟误差控制在10%以内,具有较高的精度。The performance analysis model of MIN is accurate and efficient. This paper redefines the network switches input port states based on an analysis of their transformation and the dependency between adjacent ports, and constructs a precise model for the MIN performance analysis which supports multicasting using the probability theory and the queueing theory. For the first time, this paper uses conditional probability when computing the transformation of the port states, which reflects the reality much better. The experiments show that the difference between the results of this analysis model and simulation is less than 10%.

关 键 词：多级互连网络 多播 性能分析模型 

分 类 号：TP302.7[自动化与计算机技术—计算机系统结构]