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On a Parallel Implementation of the Mortar ElementMethod

Published online by Cambridge University Press:  15 August 2002

Gassav S. Abdoulaev ,
Yves Achdou ,
Yuri A. Kuznetsov  and
Christophe Prud'homme
Gassav S. Abdoulaev
Affiliation:
Institute of Numerical Mathematics, Russian Academy of Sciences, Ul. Gubkina 8, GSP-1, Moscow, Russia.
Yves Achdou
Affiliation:
INSA Rennes, 20 avenue des Buttes de Coesmes, 35043 Rennes, France and CMAP, École Polytechnique, 91128 Palaiseau Cedex, France. [email protected].
Yuri A. Kuznetsov
Affiliation:
Institute of Numerical Mathematics, Russian Academy of Sciences, Ul. Gubkina 8, GSP-1, Moscow, Russia.
Christophe Prud'homme
Affiliation:
ASCI, CNRS, Université Paris Sud, bâtiment 506, 91405 Orsay, France and INRIA Rocquencourt.
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Abstract

We discuss a parallel implementation of the domaindecomposition method based on the macro-hybrid formulationof a second order ellipticequation and on an approximation by the mortar element method. The discretization leads to an algebraic saddle- point problem. An iterative method with a block- diagonalpreconditioner is used for solving the saddle- point problem. A parallel implementation of the method is emphasized. Finally the results of numerical experiments are presented.

Keywords

Domain decomposition; mortar finite element method;saddle-point problem; preconditionediterative method; parallel computing.
Type
Research Article
Information
ESAIM: Mathematical Modelling and Numerical Analysis , Volume 33 , Issue 2 , March 1999 , pp. 245 - 259
Copyright
© EDP Sciences, SMAI, 1999

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