TITLE

POTENTIALITIES OF THE ROBUST MULTIGRID TECHNIQUE

AUTHOR(S)
Martynenko, S. I.
PUB. DATE
January 2010
SOURCE
Computational Methods in Applied Mathematics;2010, Vol. 10 Issue 1, p87
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The present paper discusses the parallelization of the robust multigrid technique (RMT) and the possible way of applying this to unstructured grids. As opposed to the classical multigrid methods, the RMT is a trivial method of parallelization on coarse grids independent of the smoothing iterations. Estimates of the minimum speed-up and parallelism efficiency are given. An almost perfect load balance is demonstrated in a 3D illustrative test. To overcome the geometric nature of the technique, the RMT is used as a preconditioner in solving Pies on unstructured grids. The procedure of auxiliary structured grids generation is considered in details.
ACCESSION #
49718941

 

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