电子科技大学8010研究室,四川,成都,610054
纸质出版:2004
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刘 丹, 刘心松, 丘志杰, 等. 基于读写特征的分布式互斥算法[J]. 电子学报, 2004,32(2):326-329.
LIU Dan, LIU Xin-song, QIU Zhi-jie, et al. A Distributed Mutual Exclusion Algorithm Based on Read/Write Character[J]. Acta Electronica Sinica, 2004, 32(2): 326-329.
在LK算法基础上
提出一种对读写请求作不同互斥处理的分布式互斥算法——RWME(read/write mutual exclusion)算法.在同步延迟仍为
T
的前提下
降低了传统非令牌类型互斥算法的消息复杂度.在Lamport全局时戳的基础上
定义了适合于读写互斥的全局时戳——读写时戳
并由其来保证各读写进程互斥访问临界区的公平性和正确性.通过对算法的性能分析验证其是高效的
并给出了正确性证明.
Based on LK algorithm
a distributed mutual exclusion algorithm—read/write mutual exclusion (RWME) algorithm is presented.It puts different mutual exclusion operations for reading request and writing request.The algorithm belongs to nontoken-based type.It saves the message complexity and still has
T
synchronization delay.A read/write globe clock stamp which based on Lamport clock stamp is defined for the read/write mutual operations.Using the read/write globe clock stamp
reading and writing requests can access critical sections with fairness and freedom from deadlock or starvation.Proved by performance analysis
the algorithm has high-performance.A correctness proof is provided.
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