一种网格资源空间模型及其应用

A Model of Grid Address Space with Applications

资源的表示、描述、组织、部署、发现、访问、使用、维护和最终撤销是网格计算的重要研究问题 ,直接影响到网格协议、网格语言与网格软件的设计和实现 将网格看成一台虚拟计算机 ,从计算机体系结构角度 ,用地址空间的方法研究了这些问题 ,提出了一个网格资源空间 3层模型 ,并应用到织女星网格的GSML软件包与网格系统软件的设计和实现中 这种采用有效资源、虚拟资源、物理资源的 3层方法有助于提高网格软件的好用性、透明性、自治性、模块性 这个EVP模型并不局限于科学计算网格 ,对数据网格、信息网格、商业网格以及对等计算中的资源空间问题研究 。

The representation, description, organization, deployment, discovery, access, maintenance and final destroy of resources are important research problems in grid computing, as they directly affect the design and implementation of grid protocols, grid languages, and grid software. In this paper, a grid is viewed as a virtual computer, and these problems are studied from a computer architecture viewpoint, using the methodology accumulated in past address space studies. A formal model of grid resource space with three layers is proposed: effective resource space, virtual resource space, and physical resource space, and thus it is called the EVP model. This model is used in the design and implementation of the GSML software suite and the grid operating system of the Vega grid project. This three-layer approach could enhance the usability, modularity, transparency, and autonomy of grid systems. This EVP model could be used not only for computing grid, but also for data grid, information grid, business grid, and peer-to-peer systems.