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On the modeling of parallel access to shared data

By A. Chesnais, E. Gelenbe, I. Mitrani

Communications of the ACM, Vol. 26 No. 3, Pages 196-202
10.1145/358061.358073


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A model is constructed of a database that can be accessed and modified concurrently by a number of users, and an approximate solution is presented. The resource allocation policies considered involve dynamic acquisition of entities and locking; deadlock is avoided by limiting the number of consecutive attempts to acquire a particular entity. The accuracy of the approximation is evaluated by simulations. Several generalizations aimed at improving the practicality of the model are described.

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