一种基于混合方式的网格资源目录模型*

基于幂规律和小世界特性而建立的一种具有可扩展性、动态自适应性的网格资源管理模型--DPGS,可以使网格服务请求者通过分布式目录池在尽可能短的时间内获得所需硬件资源的信息.DPGS中现场信息管理模块SIM很好地满足了网格用户继续进行被中断工作的要求.DPGS不但支持各种网格硬件资源的动态加入和退出,也支持用户对硬件资源的一次多种类、多批量的需求.

Grid Resources Directory Model Based on Mixed mode

A grid hardware resource management model named DPGS was imposed,which was based on power law and the small-world theory and had the characteristics of extensibility and dynamic adaptive.In DPGS,the requester of grid service can easily access to DP(Directory Pool) to get the directory of the needed service quickly.The module of Spot Information Manager(SIM) is useful and helpful to continuing the grid service is on journey and if the service is once interrupted.In DPGS,the dynamic joining and exit of all grid nodes and services is supported,and user's demand to access multi-kind and bulk services once is also granted.