网格资源管理系统中的任务调度策略研究

网格计算是继Internet和Web技术之后，又一次信息技术浪潮。由于资源具有广域分布、异构、动态等特性，网格环境下的资源管理和调度是一个非常复杂且具有挑战性的问题。通过分析比较当前多种环境下任务调度策略的基础之上，提出了一种适用于网格资源管理系统的多次映射任务调度策略。该策略在追求最短任务完成时间的同时，兼顾到了不同用户的需求，从而更好的适应了网格资源动态变化的特性。

Research on Task Scheduling Strategy in Grid Resource Management System

Grid Computing is the third wave of information technology after Internet and Web technology.As the resources under the grid environment are heterogeneous,dynamic and widely distributed,the resource management and scheduling are very complicated.Based on the analysis of some task scheduling strategies under different environments,a repeated mapping scheduling strategy for gird resource management system,which considers the Minimum Completion Time of mapping a set of tasks to resources,is presented.Incorporated with the demands of different users,the repeated mapping algorithm is more suitable for the dynamic adaptability and domain autonomy in the gird.