基于随机回报网的机群系统可用性建模及仿真  

Modeling and Analysis of Cluster System Availability with Stochastic Reward Net

作　　者：范新媛[1] 徐国治[1] 应忍冬[1] 蒋乐天[1] 

机构地区：[1]上海交通大学电子工程系,上海200030

出　　处：《系统仿真学报》2004年第8期1655-1658,共4页Journal of System Simulation

摘　　要：随机回报网作为随机Petri网的一个分枝,在多个方面扩展了模型的描述功能,提高了建模效率和分析能力。采用随机回报网对机群系统进行建模和分析,综合考虑了机群前端的分配器和后端的服务器对系统整体性能的影响,给出了性能指标的计算方法,并结合实例进行了分析。Stochastic Reward Net (SRN), a kind of Stochastic Petri Net, has several structural extensions to describe system states and activities, which improves its modeling efficiency and analysis capability. This paper uses SRN to model and analyze cluster system performance. Both the front-end dispatcher and the backend workers are considered to evaluate performance of the whole cluster system. Calculation formulae of measures of interest and an actual example are also given.

关 键 词：机群系统 分配器服务器 随机回报网 可用性 

分 类 号：TP302.7[自动化与计算机技术—计算机系统结构]