A Categorized-Registry Model for Grid Resource Publication and Discovery Using Software Agents

This paper presents a categorized-registry model for Grid Resource Publication and Discovery(GRPD) using software agents. We use Common Resource Model(CRM) specification to describe manageable resources as Open Grid Services Architecture(OGSA) services. We also adopt two-level registry mechanism to register corresponding resources of a Virtual Organization(VO) in order to obtain high GRPD efficiency. The ”Index” node of a VO hosts the general registry. Other specific categorized registries are distributed in the VO. A large-scale Grid system may contain many VOs. ”Index” nodes from various VOs connect to each other in Peer-to-Peer(P2P) mode instead of hierarchical mode. Software agent is a powerful high-level tool for modeling a complex software system. It is adopted to implement GRPD efficiently.