结合预测机制和QoS约束的网格资源调度算法的研究

Research on Grid Resource Scheduling Algorithm Integrating Forecast Mechanism with QoS Constraint

资源调度是网格计算领域中的研究热点之一.以达到最优的资源利用率和提高用户对服务的满意程度为目标,定义了资源QoS约束和形式化描述;在任务完成期限和网络带宽的双重属性约束下结合预测机制,提出了网格资源调度算法Senior;应用GridSim工具包实现了相关的调度算法,并对调度算法仿真结果中的数据进行了分析和比较,验证了Senior调度算法在解决类似问题的优势.

Resource scheduling has been the focus of grid computing fields in recent year. The goal of this paper is to achieve utilization ratio of resources and improve satisfaction degree of users, which defines the formalization description and QoS constraint of resource. With two constraints of deadline of gridlets and bandwidth, and integrating the thought of forecast mechanism, the grid resource scheduling algorithm senior is proposed. The related algorithms are simulated by the GridSim toolkits, and the simulation results show that the new algorithm Senior is superior in solving such kind of issues by comparing and analyzing the result data.