Belos Package Browser (Single Doxygen Collection) Development
Loading...
Searching...
No Matches
BelosIteration.hpp
Go to the documentation of this file.
1//@HEADER
2// ************************************************************************
3//
4// Belos: Block Linear Solvers Package
5// Copyright 2004 Sandia Corporation
6//
7// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
8// the U.S. Government retains certain rights in this software.
9//
10// Redistribution and use in source and binary forms, with or without
11// modification, are permitted provided that the following conditions are
12// met:
13//
14// 1. Redistributions of source code must retain the above copyright
15// notice, this list of conditions and the following disclaimer.
16//
17// 2. Redistributions in binary form must reproduce the above copyright
18// notice, this list of conditions and the following disclaimer in the
19// documentation and/or other materials provided with the distribution.
20//
21// 3. Neither the name of the Corporation nor the names of the
22// contributors may be used to endorse or promote products derived from
23// this software without specific prior written permission.
24//
25// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
26// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
29// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
30// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
31// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
32// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36//
37// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
38//
39// ************************************************************************
40//@HEADER
41
42#ifndef BELOS_ITERATION_HPP
43#define BELOS_ITERATION_HPP
44
48
49#include "BelosConfigDefs.hpp"
50#include "BelosTypes.hpp"
51
52#include "Teuchos_Array.hpp"
53#include "Teuchos_ParameterList.hpp"
54#include "Teuchos_RCP.hpp"
55#include "Teuchos_ScalarTraits.hpp"
56
57
58namespace Belos {
59
60template <class ScalarType, class MV, class OP>
61class LinearProblem;
62
63template <class ScalarType>
64class OutputManager;
65
66template <class ScalarType, class MV, class OP>
67class StatusTest;
68
69template <class ScalarType, class MV, class OP>
70class MatOrthoManager;
71
72template<class ScalarType, class MV, class OP>
73class Iteration {
74
75 public:
76
78
79
82
84 virtual ~Iteration() {};
86
87
89
90
94 virtual void iterate() = 0;
95
99 virtual void initialize() = 0;
100
102
103
105
106
108 virtual int getNumIters() const = 0;
109
111 virtual void resetNumIters( int iter = 0 ) = 0;
112
115 virtual Teuchos::RCP<const MV> getNativeResiduals( std::vector<typename Teuchos::ScalarTraits<ScalarType>::magnitudeType> *norms ) const = 0;
116
118
121 virtual Teuchos::RCP<MV> getCurrentUpdate() const = 0;
122
124
125
126
128
129
131 virtual const LinearProblem<ScalarType,MV,OP>& getProblem() const = 0;
132
134 virtual int getBlockSize() const = 0;
135
137 virtual void setBlockSize(int blockSize) = 0;
138
140 virtual bool isInitialized() = 0;
141
143
144};
145
146} // end Belos namespace
147
148#endif /* BELOS_ITERATION_HPP */
Belos header file which uses auto-configuration information to include necessary C++ headers.
Collection of types and exceptions used within the Belos solvers.
virtual void initialize()=0
Initialize the solver with the initial vectors from the linear problem or random data.
virtual int getNumIters() const =0
Get the current iteration count.
virtual Teuchos::RCP< const MV > getNativeResiduals(std::vector< typename Teuchos::ScalarTraits< ScalarType >::magnitudeType > *norms) const =0
virtual ~Iteration()
Destructor.
virtual void setBlockSize(int blockSize)=0
Set the blocksize to be used by the iterative solver in solving this linear problem.
virtual bool isInitialized()=0
States whether the solver has been initialized or not.
Iteration()
Default Constructor.
virtual void iterate()=0
This method performs linear solver iterations until the status test indicates the need to stop or an ...
virtual int getBlockSize() const =0
Get the blocksize to be used by the iterative solver in solving this linear problem.
virtual Teuchos::RCP< MV > getCurrentUpdate() const =0
Get the current update to the linear system.
virtual void resetNumIters(int iter=0)=0
Reset the iteration count to iter.
virtual const LinearProblem< ScalarType, MV, OP > & getProblem() const =0
Get a constant reference to the linear problem.
Belos's templated virtual class for providing routines for orthogonalization and orthonormzalition of...
Belos's basic output manager for sending information of select verbosity levels to the appropriate ou...
A pure virtual class for defining the status tests for the Belos iterative solvers.