网格应用程序的性能预测策略研究

Grid application peformance prediction procedure strategy study

在网格环境下,资源动态变化,网格应用程序的执行需要实时,准确的,动态的性能预测信息。网格应用程序性能预测可以在动态网格环境下为调度决策系统提供调度依据,使得网格资源的利用更加合理,改进应用程序的执行性能。本文分析了网格应用程序性能信息的预测策略,对几种主要预测策略做出性能评价,并提出了网格应用程序性能预测的修正模型。

In a grid environment,the state of resources varies dynamically,real time,accurate,dynamic performance prediction information of the application is needed for grids.Application Performance Prediction in Grids is the base for the scheduling system,it makes utilization of the resource more suitable and improves the executing performance of applications.In this paper,prediction strategies of grid application performance information are classified and discussed in detail,performance evaluations are made for several main strategies,and a modificatory model of grid application performance prediction is proposed.