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A new model for dynamic processor allocation in multicomputer systems

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2 Author(s)
Huey-Ling Chen ; Dept. of Comput. Sci., Nat. Tsing Hua Univ., Hsinchu, Taiwan ; Chung-Ta King

We study a new model for dynamic processor allocation in multicomputer systems. The model, originally proposed in (Chen at al., 1994) for hypercube systems, uses Boolean functions to represent free processors and allocates processors by applying Boolean operations on the functions. With the model, existing techniques for handling Boolean functions, such as the binary decision diagram (BDD), can be applied directly. This paper extends previous results in several ways. First, a technique called lazy combining is introduced, which uses the current free processor composition as much as possible-changing only when an incoming request fails to find a match. Second, when recombining the free processors is necessary, a comprehensive literal reordering technique for BDD is presented to identify matching free subcubes. Third, we extend the new model to general k-ary n-cube mesh or torus systems. Due to the generality of our model, the extension is straightforward as long as some restrictions are observed. Finally, complexities and performance evaluation of the algorithms are presented

Published in:

System Sciences, 1996., Proceedings of the Twenty-Ninth Hawaii International Conference on ,  (Volume:1 )

Date of Conference:

3-6 Jan 1996

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