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BelosStochasticCGIteration.hpp
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4// Belos: Block Linear Solvers Package
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41
42#ifndef BELOS_CG_STOCHASTIC_ITERATION_HPP
43#define BELOS_CG_STOCHASTIC_ITERATION_HPP
44
49#include "BelosConfigDefs.hpp"
50#include "BelosTypes.hpp"
51#include "BelosIteration.hpp"
52#include "BelosCGIteration.hpp"
53
54namespace Belos {
55
57
58
63 template <class ScalarType, class MV>
65
67 Teuchos::RCP<const MV> R;
68
70 Teuchos::RCP<const MV> Z;
71
73 Teuchos::RCP<const MV> P;
74
76 Teuchos::RCP<const MV> AP;
77
79 Teuchos::RCP<const MV> Y;
80
81 StochasticCGIterationState() : R(Teuchos::null), Z(Teuchos::null),
82 P(Teuchos::null), AP(Teuchos::null), Y(Teuchos::null)
83 {}
84 };
85
86template<class ScalarType, class MV, class OP>
87class StochasticCGIteration : virtual public Iteration<ScalarType,MV,OP> {
88
89 public:
90
92
93
108
117
118};
119
120} // end Belos namespace
121
122#endif /* BELOS_STOCHASTIC_CG_ITERATION_HPP */
Pure virtual base class which augments the basic interface for a conjugate gradient linear solver ite...
Belos header file which uses auto-configuration information to include necessary C++ headers.
Pure virtual base class which describes the basic interface to the linear solver iteration.
Collection of types and exceptions used within the Belos solvers.
virtual StochasticCGIterationState< ScalarType, MV > getState() const =0
Get the current state of the linear solver.
virtual void initializeCG(StochasticCGIterationState< ScalarType, MV > &newstate)=0
Initialize the solver to an iterate, providing a complete state.
Structure to contain pointers to CGIteration state variables.
Teuchos::RCP< const MV > Y
The current stochastic recurrence vector.
Teuchos::RCP< const MV > AP
The matrix A applied to current decent direction vector.
Teuchos::RCP< const MV > P
The current decent direction vector.
Teuchos::RCP< const MV > Z
The current preconditioned residual.
Teuchos::RCP< const MV > R
The current residual.

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