网格计算核心技术浅析

Analysis of key grid computing technology

介绍了网格系统的特点和几种主要的网格体系结构,分析了网格系统中高速通信、安全、资源管理、任务管理与任务调度等核心技术。针对资源管理技术在网格系统中的重要性,作了较为详细的讨论并且提出了一种类似于搜索引擎机制的方法来组织网格资源,构造局部网格系统,各局部网格系统可以通过P2P技术互连,从而建立更大的网格系统,实现系统的可扩充性。

The grid computing is a new distributed technology connecting the distributed and heterogeneous resources to the high-speed network and integrating a super-computer of processing capacity. The significance and architecture of the grid computing is explained. Several kernel technology such as OGSI, resource management, task management, task scheduling, high rate communication and security are described. Aiming at the particularity of the grid computing environment a mechanism similar to the technology of the search engine is designed to registry, discovery and locate the resources in the grid. The whole model of the resource management is built by connecting task manager in the local resource management system to others with P2P model. The task may migrate among the task managers in order to balance the load. The task users summit may be executed in relatively tight resource set, which will not only decrease the total communication overheads of the whole task but also enhance the performance of the system.