DOLFIN
DOLFIN C++ interface
Loading...
Searching...
No Matches
MueluPreconditioner.h
1// Copyright (C) 2014 Chris Richardson
2//
3// This file is part of DOLFIN.
4//
5// DOLFIN is free software: you can redistribute it and/or modify
6// it under the terms of the GNU Lesser General Public License as published by
7// the Free Software Foundation, either version 3 of the License, or
8// (at your option) any later version.
9//
10// DOLFIN is distributed in the hope that it will be useful,
11// but WITHOUT ANY WARRANTY; without even the implied warranty of
12// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13// GNU Lesser General Public License for more details.
14//
15// You should have received a copy of the GNU Lesser General Public License
16// along with DOLFIN. If not, see <http://www.gnu.org/licenses/>.
17//
18
19#ifndef __DOLFIN_MUELU_PRECONDITIONER_H
20#define __DOLFIN_MUELU_PRECONDITIONER_H
21
22#ifdef HAS_TRILINOS
23
24//#include <MueLu.hpp>
25#include <MueLu_TpetraOperator.hpp>
26
27#include "BelosKrylovSolver.h"
28#include "TrilinosPreconditioner.h"
29#include "TpetraMatrix.h"
30#include "TpetraVector.h"
31
32namespace dolfin
33{
34
36 class BelosKrylovSolver;
37
39
41 {
42
43 public:
44
47
49 virtual ~MueluPreconditioner();
50
52 virtual void set(BelosKrylovSolver& solver);
53
55 std::string str(bool verbose) const;
56
58 virtual void init(std::shared_ptr<const TpetraMatrix> P);
59
62
63 private:
64
65 typedef Tpetra::Operator<double, int, dolfin::la_index,
67
68 typedef MueLu::TpetraOperator<double, int, dolfin::la_index,
69 TpetraVector::node_type> prec_type;
70
71 // Muelu preconditioner, to be constructed from a Tpetra Operator
72 // or Matrix
73 Teuchos::RCP<prec_type> _prec;
74
75 };
76
77}
78
79#endif
80
81#endif
Definition BelosKrylovSolver.h:52
Implements Muelu preconditioner from Trilinos.
Definition MueluPreconditioner.h:41
std::string str(bool verbose) const
Return informal string representation (pretty-print)
Definition MueluPreconditioner.cpp:61
virtual void init(std::shared_ptr< const TpetraMatrix > P)
Initialise preconditioner based on Operator P.
Definition MueluPreconditioner.cpp:41
static Parameters default_parameters()
Default parameter values.
Definition MueluPreconditioner.cpp:76
MueluPreconditioner()
Create a particular preconditioner object.
Definition MueluPreconditioner.cpp:30
virtual void set(BelosKrylovSolver &solver)
Set the preconditioner on a solver.
Definition MueluPreconditioner.cpp:56
virtual ~MueluPreconditioner()
Destructor.
Definition MueluPreconditioner.cpp:36
Definition Parameters.h:95
Tpetra::MultiVector ::node_type node_type
Node type.
Definition TpetraVector.h:58
This class provides a common base for Trilinos preconditioners.
Definition TrilinosPreconditioner.h:37
Common base class for DOLFIN variables.
Definition Variable.h:36
Definition adapt.h:30
PetscInt la_index
Index type for compatibility with linear algebra backend(s)
Definition types.h:32