网格计算及其关键技术综述

A Survey of Grid Computing and Key Technologies

网格计算是近年来兴起的一个研究热点。它旨在使互联网上所有资源(计算资源、存储资源、通信资源、软件资源、信息资源、知识资源等)实现全面共享与协同工作,使整个因特网整合成一台巨大的超级计算机,为用户提供“即连即用”式的服务。论文不仅介绍了网格计算的概念、特点、起源、研究现状及当前几个典型的系统,而且从网格计算即异构网格结点在网络环境下的分布动态协同工作的角度出发,着重介绍了网格计算的体系结构、资源管理、任务管理、通信技术、安全机制、用户界面等关键技术。

Grid computing is one of the most attractive research field currently,which enables all the geographically distributed resources,such as computational resources,storage systems ,communication resources,software resources,infor-mation resources,knowledge resources,etc,widely sharing and collaboration.It also offers consistent and inexpensive ac-cess to resources irrespective of their physical location or access point.In this way it makes the whole internet just like a supercomputer.The paper not only explains the grid computing's concepts,characteristic,origin,current state and some typical grid computing systems ,but also introduces the key technologies,such as grid architecture,resource management ,task management ,communication technologies,security mechanism,user interface,etc,from the distributing dynamic coop-eration working view in the heterogeneous environment.