Abstract
Computational Grids allow large-scale, pervasive and consistent sharing of geographically dispersed resources. Their inherent nature incorporates issues including the discovery of resources located in different administrative domains, predicting the performance of those resources and monitoring their behaviour.
The Monitoring and Discovery Service (MDS), one of the pillars provided by the Globus toolkit, can be used to offer Grid information servies to an existing agent-based resource advertisement and discovery system. This paper presents an agent system which implements the GRid Information Protocol (GRIP) and the GRid Registration Protocol (GRRP) of the MDS to discover virtual organisations and monitor their respective resources. The result system has the effect of resource brokering, monitoring and performance prediction.