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65 lines
3.3 KiB
65 lines
3.3 KiB
/* -*- c++ -*- (enables emacs c++ mode) */
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/*===========================================================================
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Copyright (C) 2004-2012 Yves Renard
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This file is a part of GETFEM++
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Getfem++ is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version along with the GCC Runtime Library
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Exception either version 3.1 or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License and GCC Runtime Library Exception for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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As a special exception, you may use this file as it is a part of a free
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software library without restriction. Specifically, if other files
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instantiate templates or use macros or inline functions from this file,
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or you compile this file and link it with other files to produce an
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executable, this file does not by itself cause the resulting executable
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to be covered by the GNU Lesser General Public License. This exception
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does not however invalidate any other reasons why the executable file
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might be covered by the GNU Lesser General Public License.
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===========================================================================*/
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#ifndef GMM_PRECOND_H
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#define GMM_PRECOND_H
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#include "gmm_kernel.h"
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/** @file gmm_precond.h
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@author Yves Renard <Yves.Renard@insa-lyon.fr>
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@date March 29, 2004.
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@brief gmm preconditioners.
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*/
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/* Preconditioner concept : */
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/* */
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/* A the matrix, P the preconditioner PA well conditioned. */
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/* PRECOND precontioner type. */
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/* mult(P, v, w) : w <- P v */
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/* transposed_mult(P, v, w) : w <- transposed(P) v */
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/* left_mult(P, v, w) : see qmr solver */
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/* right_mult(P, v, w) : see qmr solver */
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/* transposed_left_mult(P, v, w) : see qmr solver */
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/* transposed_right_mult(P, v, w) : see qmr solver */
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/* */
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/* PRECOND P() : empty preconditioner. */
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/* PRECOND P(A, ...) : preconditioner for the matrix A, with optional */
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/* parameters */
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/* PRECOND(...) : empty precondtioner with parameters set. */
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/* P.build_with(A) : build a precondtioner for A. */
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/* */
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/* *********************************************************************** */
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#endif
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