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Iterative methods for overflow queuing models II

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Summary

Preconditioned conjugate gradient methods are employed to find the steady-state probability distribution of Markovian queuing networks that have overflow capacity. Different singular preconditioners that can be handled by separation of variables are discussed. The resulting preconditioned systems are nonsingular. Numerical results show that the number of iterations required for convergence grows very slowly with the queue sizes.

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This research was supported in part by the National Science Foundation grant DCR-8405506 and DCR-8602563

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Chan, R.H. Iterative methods for overflow queuing models II. Numer. Math. 54, 57–78 (1988). https://doi.org/10.1007/BF01403891

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