摘要： 在满足用户QoS需求的前提下，为研究提高网格系统性能的方法，提出一种网格环境下元任务全局效用启发式调度策略，并设计MGU立即调度算法以及Global USufferage批调度算法。仿真实验结果表明，该策略在获得较高用户满意度的同时，能够保证系统的吞吐率和稳定性。

关键词: 网格, 元任务, 调度, 服务质量, 全局效用

Abstract: On the premise of guaranteeing the users’s Quality of Service(QoS) requirements and to research the method how to promote the grid system performance, a global utility heuristic schedule strategy for grid meta-task is proposed. The immediate schedule arithmetic MGU and batch schedule arithmetic Global USufferage are designed. Simulation experimental results show this strategy can get higher user satisfaction, and meanwhile ensure the system throughput and stability.

Key words: grid, meta-task, schedule, Quality of Service(QoS), global utility

中图分类号: 

• TP393.02