基于QoS的动态网格资源分配策略研究

网格资源节点的动态性、网格资源的分布性和异构性,决定了基于QoS保证来满足用户的要求,如何在竞争资源的应用之间合理分配资源,使得在满足用户QoS要求的基础上资源的利用率最高成为一个急需解决的问题.针对网格资源的特性介绍了一种基于QoS的动态网格资源分配策略,提出了基于网格的资源预留机制,提高了资源管理的可靠性和准确性.在此基础上,提出了选择性QoS调整机制.仿真试验表明该方法能有效地确保系统QoS,并获得近似最优的资源分配方案.

A Based on QoS Dynamic Resource Allocation Scheme for Grid

As grid resources are distributed, dynamic and heterogeneous, the user's QoS must be guarantee. How resources allocated among competing application s to guarantee the user's QoS and achieve maximum resource utilization becomes an urgent problem. According to distributed multimedia application's characteristics, a method of adaptive grid resource management system is proposed based on application's QoS. The resource reservation mechanism is introduced, which improves the reliability and accuracy of the resource management. And a selectivity QoS adjust mechanism is proposed. The simulation results show that this works are effectively and reach near results.