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A parallel algorithm to solve large stiff ODE systems on grid systems

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4 Author(s)
Bahi, J. ; Lab. d''Inf. de l''Univ. de Franche-Comte, Univ. of Franche-Comte, Belfort ; Charr, J.-C. ; Couturier, R. ; Laiymani, D.

This paper introduces a parallel algorithm to solve large stiff ODE systems in a geographically distant cluster environment. This algorithm is based on the coupling of the waveform relaxation concept and the CVODE algorithm. With respect to the standard PVODE algorithm, it allows to drastically reduce the number of messages exchanged between nodes. It is a coarse grained algorithm well suited for distant grid environments connected via high latency networks. In this paper our work consists in analyzing the execution times taken by the PVODE solver and our algorithm and in explaining the benefits brought by this work.

Published in:

Cluster Computing, 2007 IEEE International Conference on

Date of Conference:

17-20 Sept. 2007