基于Markov过程的渲染集群可用性分析  

Markov-based availability analysis of clusters for distributed rendering system

作　　者：洪志国[1] 王永滨[1] 石民勇[2] 

机构地区：[1]中国传媒大学计算机学院,北京100024 [2]中国传媒大学动画与数字艺术学院,北京100024

出　　处：《通信学报》2011年第4期166-174,共9页Journal on Communications

基　　金：中国传媒大学工科规划项目(XNG0929);国家高技术研究发展计划("863"计划)基金资助项目(2008AA01A318);北京市影视;动漫等文化创意产业研发与人才培训基地子课题(HG0837)~~

摘　　要：在考虑到多个集群节点存在着CMF(共模失效)情形下研究了系统的可用性。分别提出了由2个集群节点组成的系统在"单步修复"和"整体修复"方案下的CTMC(连续时间Markov链),得出了2种不同方案的优劣比较结论,同时采用SRN(随机回报网)仿真工具进行了验证;并进一步研讨了n(n>2)个集群节点组成系统的情形。The availability of system comprising multiple cluster nodes in the case of CMF was studied.Firstly,contraposing to the system with two cluster nodes,two CTMC models for the step-by-step recovery mechanism and uniform resetting one were proposed respectively.Furthermore,the conclusion on the priority and inferiority comparison for related plans of different mechanisms was derived thereby.Moreover,its correctness was simulated and validated by stochastic reward nets tool.Additionally,the availability of system with n（n2） cluster nodes was discussed.

关 键 词：渲染 共模失效 可用性 马尔科夫过程 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]