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On the optimization by redundancy using an extended LogP model

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3 Author(s)
Eisenbiegler, J. ; Inst. fur Programmstrukturen und Datenorgan., Karlsruhe Univ., Germany ; Lowe, W. ; Wehrenpfennig, A.

We present a strategy for optimizing parallel algorithms introducing redundant computations. In order to calculate the optimal amount of redundancy, we generalize the LogP model to capture messages of varying sizes using functions instead of constants for the machine parameters. We validate our method for a wave simulation algorithm on a Parsytec PowerXplorer with eight processors and a workstation cluster with four workstations

Published in:

Advances in Parallel and Distributed Computing, 1997. Proceedings

Date of Conference:

19-21 Mar 1997