A stochastic control model for hierarchical grid service

Authors:
Zhimin Tian;Li Liu;Yang Yang;Zhengli Zhai
Affiliations:
School of Information Engineering, University of Science and Technology Beijing, Beijing, China;School of Information Engineering, University of Science and Technology Beijing, Beijing, China;School of Information Engineering, University of Science and Technology Beijing, Beijing, China;School of Information Engineering, University of Science and Technology Beijing, Beijing, China
Venue:
NPC'05 Proceedings of the 2005 IFIP international conference on Network and Parallel Computing
Year:
2005

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Abstract

In this paper, we introduce a model for deployment and hosting of a hierarchical gird service wherein the service provider must pay to a resource provider for the use of resources. Our model produces policies that balance the number of required resources with the desire to keep the cost of hosting the service to a minimum. In each layer of our framework, we quantify the cost increase of reserved resources caused by the fluctuation of the users’ demand. A stochastic control algorithm is cast in order to resolve the problem. The results show that the model makes good decisions in the face of such uncertainties as random demand for the service.