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Computational Techniques and Applications Conference and Workshops - CTAC99
September 20-24, 1999
The Australian National University
Canberra, ACT, Australia

Organizers
Mike Osborne, Bob Gingold, Steve Roberts, David Harrar II, Thanh Tran, Bob Anderssen, Henry Gardner, Markus Hegland, Lutz Grosz

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On Residuum Smoothing in ILUM-type preconditioning
by
Lutz Grosz
CMA/SMS, Australian National University

We consider multi-level preconditioning for iterative linear solvers, which bases on an ILUM-type factorisation of the coefficient matrix. This method is more robust than the classic ILU preconditioning and very suitable for parallel processing. In the talk we introduce a smoothing technique into the backward substitution in order to compensate dropping in the Schur complement assemblage.

Date received: August 23, 1999

Copyright © 1999 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # cadr-22.