动态网格下的资源发现算法  

Algorithm of resource discovery in dynamic grid

作　　者：张永平[1] 李从东[1] 

机构地区：[1]天津大学,天津300000

出　　处：《计算机应用研究》2008年第5期1361-1363,1367,共4页Application Research of Computers

基　　金：河北省科学技术研究与发展资助项目(03457249D);河北省教育厅资助项目(2003256)

摘　　要：提出了一种网格环境下动态资源的表示方法——矩阵表示法,同时研究了矩阵表示法下的资源查找和更新算法,该算法充分考虑了资源属性的动态性。由于矩阵计算不用操作资源的原始数据,从而提高了查找的效率,不仅能够进行精确匹配的查询也能进行范围查询。在路由查询时,只要参考本地信息就可给出准确的路由选择。矩阵表示资源还简化了动态资源的更新过程,使资源信息能够及时接近真实的网格环境。This paper put forward a representation for dynamic resources, which called matrix expression, and then gave the algorithms for discovering and updating resources. The two algorithms think of the dynamic characteristic of the resources. The efficiency improved greatly for the matrix instead of the o^iginal data. The method could be applied to equality queries but to range queries. When routed a local query, used local messages only to select the correct routes. This method also simplified the process of updating resources, which made the information of the resources close to the real state in time.

关 键 词：网格 对等网 动态资源 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]