应用网格技术实现校园网资源共享模型的研究

为实现校园网上的资源共享,降低资源浪费,本文讨论了基于网格技术的局域网资源共享模型,该模型解决了资源动态变化所引起的系统行为不可预测方面的技术难题,支持资源的动态加入,且具有很好的可扩展性.采用了简单有效的基于市场机制的资源管理调度模型,并提出了一种利用权值兼顾不同种类任务,优先选择不同类型资源的匹配算法,由于采用遗传模拟退火算法(GSA)作为调度策略,从而使调度系统具有了一定的自主性和智能性.本系统采用了基于LDAP(轻型目录访问协议)的资源监控模型,灵活地将资源监控层的静态数据与动态数据结合起来存储在目录层次中,降低了系统资源的占用率,为局域网用户提供了统一的编程接口及资源共享环境.

Research of Model of Resources-sharing Campus Network Using Grid Technology

In order to share distributed resources in the campus network and save relevant cost, a model that uses the grid technology to share the campus network's resources is designed and implemented. It can be well expanded and can resolve the unpredictable system behavior problem caused by the shared resources, and also support the dynamic join-in of resources. A simple and efficient resource management and scheduling model based on market mechanism is adopted and a new resource matching algorithm is brought forward, which is weight-oriented, taking into account different kinds of objectives and making priorities in choosing from different kinds of resources. The Genetic Simulated Annealing Algorithm is used as scheduling policy, which enables this system to exhibit a certain degree of self-determination and intellectuality. This system adopts the GMA-based LDAP protocol, which not only stores static data ,but also dynamic data in directory service to reduce the interaction between the client and the server. Since the data can be obtained in one access, it gives the local network user a shared resource environment with uniform programming interface.