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QoS-Constrained Resource Reconfiguration Scheme based on Temporal Quorum Status Estimation in Computational Grids  

Byungsang, Kim
Dong Su, Nam
Bong Hwan, Lee
Abstract
Quality of Service (QoS)-constrained policy has an advantage to guarantee QoS requirements requested by users. Quorum systems can ensure the consistency and availability of replicated data despite the benign failure of data repositories. We propose a Quorum based resource management scheme, which includes a system resource and network resource, both of which can satisfy the requirements of application QoS. We also propose the resource reconfiguration algorithm based on temporal execution time estimation method. Resource reconfiguration means that reshuffling the current available resource set for maintaining the quality level of the resources. We evaluate the effectiveness of resource reconfiguration mechanism with a Heart Hemodynamics analysis. Our approach shows the increase of the stability of execution environment as well as decrease the completion time compare to the method that is not adapted the resource reconfiguration.
Keywords
Computational Grids; Resource Reconfiguration; temporal Quorum status estimation;
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