基于PSO的多约束QoS网格资源选择模型  

Multi-QoS constraint grid resource selection model based on PSO

作　　者：傅明[1] 周杰[1] 黄晶[1] 

机构地区：[1]长沙理工大学计算机与通信工程学院,湖南长沙410077

出　　处：《计算机工程与设计》2009年第3期585-587,共3页Computer Engineering and Design

基　　金：湖南省自然科学基金项目(07JJ3120)

摘　　要：现有的网格资源选择算法中,只考虑到资源的可利用率,忽略了网络因素的影响,为此提出了一种基于粒子群优化算法的、带网络QoS约束的三层资源选择模型,并对该模型的算法进行了设计。该模型综合考虑了资源利用率和网络因素对网格资源选择的影响,过滤掉一些资源利用率很高但网络通信能力很低,甚至网络无法连通的结点,减轻了资源调度的负担。给出了一个仿真实例,以说明该模型和算法的有效性。The algorithms of grid resource selection usually focue on the utilization ratio of resource. However, it pays no attention to the influence resulted by the network. A new three-tier model is presented based on PSO optimize algorithm and multi-QoS constraint and its algorithm is designed. The model considered the impact of the utilization rate of resources and network resources, and filtered out the nodes which are of high resource utilization, but poor network communication ability, thereby reducing the burden of resource scheduling. Finally, a typical instance is illustrated to validate the model and algorithm.

关 键 词：网格 资源选择 资源利用率 资源过滤 粒子群算法 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]