Performance analysis of a resource aggregator in a grid of grids environment

The collaboration enablement and virtual organization creation is an agreed common denominator in the Grid computing world. Grid user communities agrees that the Grid provides secure virtualization of resources, which includes computing power, communication bandwidth, data, information, and knowledge. Diversity of software platforms, various policies governing the access and use of distributed resources and the apparent lack of adherence to the emerging standards, have challenged the successful interoperability of Grids. Interoperability assumes the use of interfaces described by generally accepted standards. The idea is to establish interoperability between islands of Grids, which would cover the key services such as Job Submission, Information Services, Storage Management, Accounting, Job Monitoring, Database Access and Virtual Organization Management, and Resource Management. In this paper extensible generic interface called resource aggregator for aggregating resource information across several middleware's such as Globus, gLite and UNICORE is discussed. The aggregated resources have been presented to a semantic based matchmaking module which discovers suitable grid resources which matches the user's request. In this paper we also presented delay, and cost modeling of the proposed scheme.