Abstract: According to the importance of the grid tasks schedule, this paper provides a policy-based grid tasks schedule model, explains the functions and the relationships between the different parts of the model and gives the algorithm of the model. The paper uses Gridsim simulation tool to validate this model.

Key words: Tasks schedule model, Gridsim simulation tool, Grid

摘要： 针对网格调度在网格中的重要性，提出了一种以策略为机制的网格任务调度模型。解释了模型中各功能部件的作用及其相互之间的关系，给出了与模型相对应的进行任务调度所需要的算法伪码。用Gridsim仿真工具验证模型的可实施性。

关键词: 任务调度模型, Gridsim仿真工具, 网格