Mapping Virtual Organizations in Grids to Peer-to-Peer Networks

Virtual organizations in Grid computing environments are arrangements of Grid participants into groups, where each participant may belong to different physical organizations. The combination of Grid computing and peer-to-peer technology causes problems in terms of forming, organizing, and managing virtual organizations in such networks. In this paper, a novel approach to map a Grid to a peer-to-peer network and to map each virtual organization to a group of peers, independent of a particular virtual organization software and peer-to-peer network, is presented. A prototypical implementation based on the Globus Toolkit 4 Grid middleware, the peer-to-peer framework Free Pastry and the virtual organization solutions GridShib/Shibboleth and the Virtual Organization Membership Service, is presented.