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Heterogeneous Multiprocessor Systems with Breakdowns: Performance and Optimal Repair Strategies

Lookup NU author(s): Emeritus Professor Isi Mitrani

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Abstract

A model of a system with N parallel processors subject to occasional interruptions of service, and a common unbounded queue fed by a Poisson arrival stream, is analyzed in the steady state. The service, breakdown and repair characteristics may vary from processor to processor. A solution method called spectral expansion is used to determine the joint distribution of the state of the processors and the number of jobs in the queue. The problem of optimizing the repair policy is addressed. The optimal policy is determined in the case when all breakdown rates are equal, and some heuristics for the general case are investigated.

Publication metadata

Author(s): Chakka R, Mitrani I

Publication type: Article

Publication status: Published

Journal: Theoretical Computer Science: Special Issue on Probabilistic Modelling

Year: 1994

Volume: 125

Issue: 1

Pages: 91-109

ISSN (print): 0304-3975

Publisher: Elsevier BV

URL: http://dx.doi.org/10.1016/0304-3975(94)90295-X

DOI: 10.1016/0304-3975(94)90295-X

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