Title: An algebraic multigrid method for solving very large electromagnetic systems
Authors: Mertens, Ronny
De Gersem, Herbert ×
Belmans, Ronnie
Hameyer, Kay
Lahaye, Domenico
Vandewalle, Stefan
Roose, Dirk #
Issue Date: Sep-1998
Publisher: Published by the Institute of Electrical and Electronics Engineers for the Magnetics Group
Series Title: IEEE Transactions on Magnetics vol:34 issue:5 pages:3327-3330
Abstract: Although most finite element programs have quite effective iterative solvers such as an incomplete Cholesky (IC) or symmetric successive overrelaxation (SSOR) preconditioned conjugate gradient (CG) method,the solution time may still become unacceptably long for very large systems. Convergence and thus total solution time can be shortened by using better preconditioners such as geometric multigrid methods. Algebraic multigrid methods have the supplementary advantage that no geometric information is needed and can thus be used as black box equation solvers. In case of a finite element solution of a non-linear magnetostatic problem, the algebraic multigrid method reduces the overall computation time by a factor of 6 compared to a SSOR-CG solver.
ISSN: 0018-9464
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Numerical Analysis and Applied Mathematics Section
ESAT - ELECTA, Electrical Energy Computer Architectures
× corresponding author
# (joint) last author

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