GridWalker: A Visual Tool for Supporting Advanced Discovery of Grid Resources

Grid management has always been a complex issue, especially when Grids are composed of a large number of resources and the efficiency is a key aspect (e.g to support applications with QoS requirements). For this, Grid administration becomes increasingly important, and advanced instrumentation for Grid management is needed. In this chapter we present GridWalker, a visual application that allows the efficient management of information about the resource characteristics and their updated status, in order to foster a proper allocation of user jobs on available resources.