基于MLON结构的资源发现机制

网格资源发现机制是目前网格领域中的一个热点研究问题。本文对已有的网格资源发现方法进行了分析,指出了这些方法存在的不足;提出了一种基于MLON结构的资源发现机制,将具有同一类型资源的网格信息结点组织在一起形成域,把结点数量较多的域通过类型粒度组织成层次形结构。该机制利用类型匹配路由的资源搜索技术将资源发现请求转发
发到资源所在的域,采用Topk技术在相应的域内找出与请求匹配的最佳的k个资源,从而改善了资源发现的性能,提高了用户的满意度。

A Grid Resource Discovery Mechanism Based on the MLON Structure

The resource discovery mechanism is a hot topic in the grid field at present.This paper analyses the existing resource discovery methods,and points out their insufficiency.Focusing on the shortages,a grid resource discovery mechanism based on the MLON structure is proposed,in which the grid information nodes with the same type are organized into regions,and the regions which have lots of nodes are formed hierarchically by the type granularity.The resource discovery requests are transmited to the region where the resources have been via the style matching routing source searching technique,then the top k resources which suit to the requests are located by the Topk source searching technique.Accordingly,the efficiency of resource discovery is meliorated,and the degree of users'satisfaction is improved.