B. Maniymaran and M. Maheswaran (Canada)
: Clusters, Grid computing, quality of service, resource management
This paper presents a concept called virtual clusters (VCs) to allocate resources for an application from a computing utility with a geographically distributed resource base. The VC creation process is modeled as a facility location problem and an efficient heuristic is devised to solve it. We extend the model to include an "overload partition" to a VC such that demand surges can be efficiently handled. Extensive simulations have been conducted to examine the performance of VCs under different scenarios and to compare it with a fully dynamic scheme called the Service Grid. The results indicate that VC is more cost-effective and robust than Service Grid.
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