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JOURNALS // Journal of Siberian Federal University. Mathematics & Physics // Archive

J. Sib. Fed. Univ. Math. Phys., 2008 Volume 1, Issue 2, Pages 210–220 (Mi jsfu20)

Computational Algorithm for Calculation of Wave Fields in Block Media on Multiprocessor Computers

Elena V. Kuchunovaa, Vladimir M. Sadovskiib

a Institute of Mathematics, Siberian Federal University
b Institute of Computational Modelling, Siberian Branch of the Russian Academy of Sciences

Abstract: We develop a parallel algorithm for finding numerical solutions of 3D dynamic problems of the theory of elasticity in piecewise homogeneous block media with curvilinear interfaces. This algorithm is based on the procedure of splitting with respect to spatial variables, in each stage of which the monotone ENO-scheme is used to find solutions of 1D hyperbolic systems. The questions of effective realization of the algorithm on multiprocessor computers with distributed memory are considered. The developed package of parallel programs is used for investigation of model problems in seismics.

Keywords: dynamics, elasticity, seismic waves, finite-difference method, decomposition, parallel algorithms.

UDC: 517.97:539.37

Received: 11.01.2008
Received in revised form: 15.03.2008
Accepted: 10.04.2008



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