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Server allocation in Grid systems with on/off sources

Lookup NU author(s): Dr Joris Slegers, Emeritus Professor Isi Mitrani, Dr Nigel Thomas



A system consisting of a number of servers, where demands of different types arrive in bursts (modelled by interrupted Poisson processes), is examined in the steady state. The problem is to decide how many servers to allocate to each job type, so as to minimize a cost function expressed in terms of average queue sizes. First, an exact analysis is provided for an isolated IP/M/n queue. The results are used to compute the optimal static server allocation policy. The latter is then compared to two heuristic policies which employ dynamic switching of servers from one queue to another (such switches take time and hence incur costs).

Publication metadata

Author(s): Slegers J, Mitrani I, Thomas N

Publication type: Report

Publication status: Published

Series Title: School of Computing Science Technical Report Series

Year: 2006

Pages: 13

Print publication date: 01/09/2006

Source Publication Date: September 2006

Report Number: 982

Institution: School of Computing Science, University of Newcastle upon Tyne

Place Published: Newcastle upon Tyne