【摘要】 结合网格系统中虚拟组织内部的集中调度机制,介绍了一种现有的多队列服务模型,该模型将提交到虚拟组织上的作业请求分配到该虚拟组织内部资源的服务队列上;考虑到网格环境中服务的动态性,将服务队列集中在调度中心的单队列服务模型应用于网格环境,通过对提供服务的资源发生故障的情况进行仿真实验,对这两种服务模型进行了对比研究,并进一步提出了自适应队列模型的构想。更多还原

【Abstract】 Taken the centralized scheduling mechanism of the virtual organization into consider,a current service model was introduced,which dispatched all the incoming jobs into its inner resource’s service queues.A different service model was applied here when taking the dynamic characteristic of grid service into account,which maintained a queue in the scheduler and sent a job to an inner resource each time.Through simulation when the resources were not available,a comparative study and some related results on the two models were obtained.In the end,the basic idea of adaptive queue length model was put forward.更多还原