An optimal sublinear time parallel algorithm for some dynamic-programming problems

An optimal sublinear time parallel algorithm for some dynamic-programming problems

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Article ID: iaor19983004
Country: United States
Volume: 52
Issue: 1
Start Page Number: 31
End Page Number: 34
Publication Date: Jan 1994
Journal: Information Processing Letters
Authors: ,
Abstract:

We consider the following problem: minimize the time of optimal parallel computations of a dynamic programming problem given by dynamic programming recurrences. By an optimal algorithm we mean here the algorithm whose total work matches the work of the best known sequential algorithm for a given problem (in this case O(n3)). We construct an optimal parallel algorithm which runs in time O(n2/(3 log (n))) with total work O(n3). It is at present the fastest optimal algorithm for the general dynamic programming recurrences.

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