基于直径仲裁集的网格网络分布式互斥算法  

Mesh network distributed mutual exclusion algorithm based on diameter quorums

作　　者：王征[1] 刘心松[1] 李美安[1] 

机构地区：[1]电子科技大学计算机科学与工程学院8010研究室,成都610054

出　　处：《计算机工程与应用》2007年第14期141-143,176,共4页Computer Engineering and Applications

摘　　要：分布式互斥是网格分布式系统的重要问题。根据网格系统的特点,提出了新型的分布式互斥算法。该算法基于网格网络的直径生成分布式互斥仲裁集;采用Lamport逻辑时戳保证消息的时序性;算法采用“探测”消息进行系统的容错处理。分析与仿真证明,该算法具有较低的消息复杂度、较短的响应延迟以及较好的容错性能。Distributed Mutual Exclusion （DME） is an important problem of distributed mesh systems.According to the properties of mesh systems,a novel algorithm is presented for them.Based on mesh network diameters,the algorithm generated distributed mutual exclusion quorums.And Lamport＇s logical timestamps are utilized to guarantee the time sequence.Furthermore, ＂Probe＂ messages are employed to implement the fault-tolerance of the algorithm.Analysis and simulation results show that it has lower message complexity,shorter response delay and better fairness than the traditional algorithms do so.

关 键 词：分布式互斥 网格 仲裁集 网络直径 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]