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<A NAME="PCSAMG"><H1>PCSAMG</H1></A>
SAMG + PETSc interface This interface allows e.g. to call samg as a shell preconditioner.
samg is the new algebraic multigrid code by Klaus Stueben [1].
Reference for SAMG
[1] K. St\"{u}ben,"Algebraic Multigrid: An Introduction for Positive
Definite Problems with Applications", in [2], pp. 413--532,
Academic Press, 2001.
[2] U. Trottenberg, C. Oosterlee and A. Sch\"{u}ller, "Multigrid
Methods", Academic Press, 2001.
[1] is also available as
[3] K. St\"{u}ben,"Algebraic Multigrid: An Introduction for Positive
Definite Problems with Applications", Tech. Rep. 53, German
National Research Center for Information Technology (GMD),
Schloss Birlinhoven, D-53754 Sankt-Augustin, Germany, March 1999
For more information on the SAMG-PETSc interface and examples of it's
use, see
[4] D. Lahaye "Algebraic Multigrid for Time-Harmonic Magnetic Field
Computations", PhD Thesis, KU Leuven, Belgium, December 2001.
(www.cs.kuleuven.ac.be/~domenico)
<P>
Notes on PETSc part of this interface
Information on how to set up shell preconditioners in PETSc can be
in the PETSc documentation under preconditioners.
<P>
This preconditioner has not been completely organized to match the PETSc style,
see src/ksp/pc/impls/samgpetsc.c for the <A HREF="../PC/PC.html#PC">PC</A> shell routines.
<P>
SAMG is a commercial product available from Klaus Stueben.
<P>
Contributed by Domenico Lahaye (domenico.lahaye@cs.kuleuven.ac.be) January 2001
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>none
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/ksp/pc/impls/samg/samgpetsc.c.html#PCSAMG">src/ksp/pc/impls/samg/samgpetsc.c</A>
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