摘要
在分析了现有网格环境不足的基础上,提出一种新的网格环境模型——基于树形结构的网格体系与环境TGrid,支持高性能计算,面向主题的资源共享和新一代的需求建模。它以树结构来组织网格节点和集成各种资源,实现了自底向上、多级、面向需求的资源抽象和多种资源融合。而且树型结构符合自然层次组织关系,容易实现网格系统的层次化管理,有利于减轻中心节点的负载和实现大规模应用的负载平衡,提高资源查找效率。同时,TGrid以虚拟资源的形式实现网格资源的共享,利用分布式JVM(TJVM)虚拟网格节点上CPU和主存资源,利用多数据库中间件(TDOD)实现数据库级资源集成和共享,利用Globus网格服务(GService)实现其他软件和数据资源共享。该树型网格为日益增长的网格应用的需求提供了新的解决方案。
After analyzing the problems in current grid environments, a new tree-based grid model （TGrid）is presented in this paper. TGrid supports high performance computing, subject-oriented resources sharing and the next generation requirement modeling and it also achieves bottom-up, multi-level and demand-oriented abstraction and fusion of multiple resources, And it organizes grid nodes and integrates multiple resources in the tree structure that conforms to the natural hierarchical organization structures, easily achieves hierarchical management, also may reduce load on the central node （server）and realize load balancing for large-scale applications, improve the efficiency of resource searching. Meanwhile, resource sharing in TGrid is realized by sharing virtual resources. Virtual resources on each node may be TJVM （Tree-based distributed JVM）which virtualizes CPU and memory resources, or may be TDOD （Tree-based DOD, DOD is a multi-database middleware, which are also called ＂DBMS＂ over DBMSs）which realizes resources sharing and integration at the database level, or may be GService （Globus grid service）which encapsulates other software and data resources, TGrid provides a new solution for Grid application demands.
出处
《计算机科学》
CSCD
北大核心
2006年第12期6-9,15,共5页
Computer Science
基金
粤港关键领域重点突破项目(2005A10307007)
广东省重大科技专项(2003A1030404)
广东省自然科学基金(05300200)
