Inter-Operating Grids Through Delegated MatchMaking

The grid vision of a single computing utility has yet to materialize: while many grids with thousands of processors each exist, most work in isolation. An important obstacle for the effective and efficient inter-operation of grids is the problem of resource selection. In this paper the authors propose a solution to this problem that combines the hierarchical and decentralized approaches for interconnecting grids. In the solution, a hierarchy of grid sites is augmented with peer-to-peer connections between sites under the same administrative control. To operate this architecture, they employ the key concept of delegated matchmaking, which temporarily binds resources from remote sites to the local environment.