In the grid environment, the discovery of resources is an important job. Any grid-based service programs or operating system, the first thing to do is to discover, and then assign tasks and scheduling. At present, there are many mechanisms discovered by grid resources. Route forward-based resource discovery mechanisms based on the Chinese Academy of Sciences, Globus's Gram, with mobile Agent, and global unified hierarchy grid resource model. Various resources have found their own characteristics. Among them, the routing-based network-based resource discovery mechanism and Globus's GRAM are most typical, and it is most widely used.
The concept of the resource router is introduced in the routing resource discovery mechanism for the routing forwarding resource discovery mechanism. A new definition is made for grid resource discovery. The Globus uses RSL to describe grid resources, using local resource management services and resource agent services for two-level resource management models. (not finishing)
