Solving The 2d Shallow Water Equations By Explicit And ADI Methods On A Distributed Memory Parallel Computer
Price
Free (open access)
Volume
3
Pages
14
Published
1993
Size
1,245 kb
Paper DOI
10.2495/ASE930171
Copyright
WIT Press
Author(s)
Z.W. Song, C.S. Yu, D. Roose & J. Berlamont
Abstract
Solving the 2d shallow water equations by explicit and ADI methods on a distributed memory parallel computer Z.W. Song, C.S. Yu, D. Roose, J. Berlamont Laboratory of Hydraulics and Department of Computer Science, Katholieke Universiteit te Leuven, de Croylaan 2, B-3001 Heverlee, Belgium ABSTRACT In this paper we compare parallel implementations of an explicit method and an alternating direction implicit (ADI) method for solving the two- dimensional shallow water equations. The implementation of an explicit solver on parallel computers is straightforward, the key issue is the achievement of a good load-balance. The difficulty of implementing an ADI method on a parallel computer lies in the solution of the resulting tridiagonal systems in both X and Y directions. In real world applications, the domain is irregular and the boundary conditions are complex. This poses additional difficulties. We compare the performance of different solvers of the 2D shallow
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