网格环境下基于移动代理的两级环调度模型

Two-Level-Loop Scheduling Model Based on Mobile Agent in Grid Environment

网格环境下基于移动代理的两级环调度模型主要由网格任务管理中心、网格资源节点、网格用户、用户作业组成。网格任务管理中心依据网格用户提交的作业动态生成两级环,即超级环和普通环。两级环中资源节点由超级环管理节点、普通环管理节点和普通环资源节点构成。不同节点充分利用移动代理的自主迁移能力共同维护任务的正常运行。通过对两级环模型的事件响应时间延迟、系统可靠性、负载平衡、作业运行时间的分析和仿真,证实该模型能够有效利用网格计算资源、均衡资源负载。

A two-level-loops scheduling model, based on mobile agent in grid environment, is composed of a grid task management center, grid resource nodes, grid users, and jobs. According to jobs submitted by grid users, a two-level-loops （including super loop and common loop） is dynamically generated by grid task management center. Resource nodes in the two-level-loops are made up of a super loop management node, common loop management nodes, and common loop resource nodes. The self-migration ability of mobile agents is used to keep tasks running normally by the coordination. The event response delay, system reliability, load balance, and running time of jobs are analyzed and simulated. The model can utilize grid resources and balance load.