基于P-Tree的网格资源定位方法  

Resource-location method of grid based on P-Tree

作　　者：徐玉伟[1] 赵文静[1] 

机构地区：[1]西安建筑科技大学信息与控制工程学院,陕西西安710055

出　　处：《计算机工程与设计》2008年第2期364-366,共3页Computer Engineering and Design

基　　金：陕西省自然科学基金项目(2003F25)

摘　　要：网格环境中,如何高效准确地定位分布在不同结点上的资源一直是研究的热点。在研究P-Tree定位方法的基础上,通过分析网格资源的发布和查询过程,针对现有网格资源具有多维属性的特点,运用数值范围属性支持的多维属性定位方法的思想,提出了基于范围查询的多维属性定位方法。分析和模拟实验结果表明,该方法能够在较小的通信开销下有效实现资源定位并具有良好的可扩展性。最后,指出下一步研究的方向。In grid environment, the key problem that confronts researchers is how to highly accurately locate different nodes that stores data items. Based on studying the location method of P-Tree, by analyzing process of the publish and query of gird resources, aimed at the characteristics of present grid resources and using the method of multidimensional attributes supported by numerical value range, it addresses a multidimensional attributes location method on the basis of range queries. The analysis and simulative experiment results indicate that this method has a high efficiency under smaller communication overhead and good scalability. In the end, the next researched direction is given.

关 键 词：网格 P-树 资源定位 范围查询 B+树 

分 类 号：TP302.1[自动化与计算机技术—计算机系统结构]