This class uses the inverted power iteration method to obtain the lowest eigenvalue of a system. More...

#include <power_iteration_eigenvalue_solver.h>

Inheritance diagram for Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >:

Collaboration diagram for Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >:

Public Member Functions
Life Cycle
	PowerIterationEigenvalueSolver ()
	Default constructor. More...

	PowerIterationEigenvalueSolver (double MaxTolerance, unsigned int MaxIterationNumber, unsigned int RequiredEigenvalueNumber, typename TLinearSolverType::Pointer pLinearSolver)
	Alternative constructor. More...

	PowerIterationEigenvalueSolver (Parameters ThisParameters, typename TLinearSolverType::Pointer pLinearSolver)
	Alternative constructor. More...

	PowerIterationEigenvalueSolver (const PowerIterationEigenvalueSolver &Other)
	Copy constructor. More...

	~PowerIterationEigenvalueSolver () override
	Destructor. More...

Operators
PowerIterationEigenvalueSolver &	operator= (const PowerIterationEigenvalueSolver &Other)
	Assignment operator. More...

Operations
void	Solve (SparseMatrixType &K, SparseMatrixType &M, DenseVectorType &Eigenvalues, DenseMatrixType &Eigenvectors) override
	The power iteration algorithm. More...

Input and output
std::string	Info () const override
	Turn back information as a string. More...

void	PrintInfo (std::ostream &rOStream) const override
	Print information about this object. More...

void	PrintData (std::ostream &rOStream) const override
	Print object's data. More...

Public Member Functions inherited from Kratos::IterativeSolver< TSparseSpaceType, TDenseSpaceType, Preconditioner< TSparseSpaceType, TDenseSpaceType >, Reorderer< TSparseSpaceType, TDenseSpaceType > >
	IterativeSolver ()
	Default constructor. More...

	IterativeSolver (double NewTolerance)

	IterativeSolver (double NewTolerance, unsigned int NewMaxIterationsNumber)

	IterativeSolver (double NewTolerance, unsigned int NewMaxIterationsNumber, typename TPreconditionerType::Pointer pNewPreconditioner)

	IterativeSolver (Parameters settings, typename TPreconditionerType::Pointer pNewPreconditioner=Kratos::make_shared< Preconditioner< TSparseSpaceType, TDenseSpaceType > >())

	IterativeSolver (const IterativeSolver &Other)
	Copy constructor. More...

	~IterativeSolver () override
	Destructor. More...

IterativeSolver &	operator= (const IterativeSolver &Other)
	Assignment operator. More...

void	InitializeSolutionStep (SparseMatrixType &rA, VectorType &rX, VectorType &rB) override

void	FinalizeSolutionStep (SparseMatrixType &rA, VectorType &rX, VectorType &rB) override

void	Clear () override

bool	AdditionalPhysicalDataIsNeeded () override

void	ProvideAdditionalData (SparseMatrixType &rA, VectorType &rX, VectorType &rB, typename ModelPart::DofsArrayType &rdof_set, ModelPart &r_model_part) override

virtual TPreconditionerType::Pointer	GetPreconditioner (void)

virtual const TPreconditionerType::Pointer	GetPreconditioner (void) const

virtual void	SetPreconditioner (typename TPreconditionerType::Pointer pNewPreconditioner)

virtual void	SetMaxIterationsNumber (unsigned int NewMaxIterationsNumber)

virtual IndexType	GetMaxIterationsNumber ()

virtual void	SetIterationsNumber (unsigned int NewIterationNumber)

IndexType	GetIterationsNumber () override

void	SetTolerance (double NewTolerance) override
	This method allows to set the tolerance in the linear solver. More...

double	GetTolerance () override
	This method allows to get the tolerance in the linear solver. More...

virtual void	SetResidualNorm (double NewResidualNorm)

virtual double	GetResidualNorm ()

virtual bool	IterationNeeded ()

virtual bool	IsConverged ()

std::string	Info () const override
	Turn back information as a string. More...

void	PrintInfo (std::ostream &rOStream) const override
	Print information about this object. More...

void	PrintData (std::ostream &rOStream) const override
	Print object's data. More...

	KRATOS_CLASS_POINTER_DEFINITION (IterativeSolver)
	Pointer definition of IterativeSolver. More...

Public Member Functions inherited from Kratos::LinearSolver< TSparseSpaceType, TDenseSpaceType, Reorderer< TSparseSpaceType, TDenseSpaceType > >
	LinearSolver ()
	Default constructor. More...

	LinearSolver (Reorderer< TSparseSpaceType, TDenseSpaceType > NewReorderer)
	Constructor with specific reorderer. More...

	LinearSolver (const LinearSolver &Other)
	Copy constructor. More...

virtual	~LinearSolver ()
	Destructor. More...

LinearSolver &	operator= (const LinearSolver &Other)
	Assignment operator. More...

virtual void	Initialize (SparseMatrixType &rA, VectorType &rX, VectorType &rB)

virtual void	PerformSolutionStep (SparseMatrixType &rA, VectorType &rX, VectorType &rB)

virtual bool	Solve (SparseMatrixType &rA, VectorType &rX, VectorType &rB)

virtual bool	Solve (SparseMatrixType &rA, DenseMatrixType &rX, DenseMatrixType &rB)

virtual TReordererType::Pointer	GetReorderer ()

virtual void	SetReorderer (typename TReordererType::Pointer pNewReorderer)

virtual bool	IsConsistent (SparseMatrixType &rA, VectorType &rX, VectorType &rB)
	This method checks if the dimensions of the system of equations are consistent. More...

virtual bool	IsConsistent (SparseMatrixType &rA, DenseMatrixType &rX, DenseMatrixType &rB)
	This method checks if the dimensions of the system of equations are consistent (dense matrix for RHS and unknowns version) More...

virtual bool	IsNotConsistent (SparseMatrixType &rA, VectorType &rX, VectorType &rB)
	This method checks if the dimensions of the system of equations are not consistent. More...

virtual bool	IsNotConsistent (SparseMatrixType &rA, DenseMatrixType &rX, DenseMatrixType &rB)
	This method checks if the dimensions of the system of equations are not consistent. More...

	KRATOS_CLASS_POINTER_DEFINITION (LinearSolver)
	Pointer definition of LinearSolver. More...

Type Definitions
typedef IterativeSolver< TSparseSpaceType, TDenseSpaceType, TPreconditionerType, TReordererType >	BaseType

typedef TSparseSpaceType::MatrixType	SparseMatrixType

typedef TSparseSpaceType::VectorType	VectorType

typedef TDenseSpaceType::MatrixType	DenseMatrixType

typedef TDenseSpaceType::VectorType	DenseVectorType

typedef std::size_t	SizeType

typedef std::size_t	IndexType

	KRATOS_CLASS_POINTER_DEFINITION (PowerIterationEigenvalueSolver)
	Pointer definition of PowerIterationEigenvalueSolver. More...

Additional Inherited Members
Public Types inherited from Kratos::IterativeSolver< TSparseSpaceType, TDenseSpaceType, Preconditioner< TSparseSpaceType, TDenseSpaceType >, Reorderer< TSparseSpaceType, TDenseSpaceType > >
typedef LinearSolver< TSparseSpaceType, TDenseSpaceType, Reorderer< TSparseSpaceType, TDenseSpaceType > >	BaseType

typedef TSparseSpaceType::MatrixType	SparseMatrixType

typedef TSparseSpaceType::VectorType	VectorType

typedef TDenseSpaceType::MatrixType	DenseMatrixType

typedef Preconditioner< TSparseSpaceType, TDenseSpaceType >	PreconditionerType

typedef TSparseSpaceType::IndexType	IndexType
	The index type definition to be consistent. More...

Public Types inherited from Kratos::LinearSolver< TSparseSpaceType, TDenseSpaceType, Reorderer< TSparseSpaceType, TDenseSpaceType > >
typedef TSparseSpaceType::MatrixType	SparseMatrixType

typedef TSparseSpaceType::MatrixPointerType	SparseMatrixPointerType

typedef TSparseSpaceType::VectorType	VectorType

typedef TSparseSpaceType::VectorPointerType	VectorPointerType

typedef TDenseSpaceType::MatrixType	DenseMatrixType

typedef TDenseSpaceType::VectorType	DenseVectorType

typedef std::size_t	SizeType

typedef TSparseSpaceType::IndexType	IndexType
	The index type definition to be consistent. More...

Protected Member Functions inherited from Kratos::IterativeSolver< TSparseSpaceType, TDenseSpaceType, Preconditioner< TSparseSpaceType, TDenseSpaceType >, Reorderer< TSparseSpaceType, TDenseSpaceType > >
void	PreconditionedMult (SparseMatrixType &rA, VectorType &rX, VectorType &rY)

void	PreconditionedTransposeMult (SparseMatrixType &rA, VectorType &rX, VectorType &rY)

Protected Attributes inherited from Kratos::IterativeSolver< TSparseSpaceType, TDenseSpaceType, Preconditioner< TSparseSpaceType, TDenseSpaceType >, Reorderer< TSparseSpaceType, TDenseSpaceType > >
double	mResidualNorm

double	mFirstResidualNorm

IndexType	mIterationsNumber

double	mBNorm

Detailed Description

template<class TSparseSpaceType, class TDenseSpaceType, class TLinearSolverType, class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>
class Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >

This class uses the inverted power iteration method to obtain the lowest eigenvalue of a system.

The solver has different constructors, so can be constructed with the different parameters of using kartos parameters

See also: IterativeSolver

Author: Pooyan Dadvand; Vicente Mataix Ferrandiz

Member Typedef Documentation

◆ BaseType

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

typedef IterativeSolver<TSparseSpaceType, TDenseSpaceType, TPreconditionerType, TReordererType> Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::BaseType

◆ DenseMatrixType

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

typedef TDenseSpaceType::MatrixType Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::DenseMatrixType

◆ DenseVectorType

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

typedef TDenseSpaceType::VectorType Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::DenseVectorType

◆ IndexType

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

typedef std::size_t Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::IndexType

◆ SizeType

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

typedef std::size_t Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::SizeType

◆ SparseMatrixType

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

typedef TSparseSpaceType::MatrixType Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::SparseMatrixType

◆ VectorType

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

typedef TSparseSpaceType::VectorType Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::VectorType

Constructor & Destructor Documentation

◆ PowerIterationEigenvalueSolver() [1/4]

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::PowerIterationEigenvalueSolver ( )

inline

Default constructor.

◆ PowerIterationEigenvalueSolver() [2/4]

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::PowerIterationEigenvalueSolver	(	double	MaxTolerance,
		unsigned int	MaxIterationNumber,
		unsigned int	RequiredEigenvalueNumber,
		typename TLinearSolverType::Pointer	pLinearSolver
	)

inline

Alternative constructor.

It uses additional variables to be initialized

Parameters

MaxTolerance	The maximal tolerance used as threshold for convergence
MaxIterationNumber	The maximal number of iterations to be considered
RequiredEigenvalueNumber	The required eigen value number
pLinearSolver	The linear solver used to solve the system of equations

◆ PowerIterationEigenvalueSolver() [3/4]

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::PowerIterationEigenvalueSolver	(	Parameters	ThisParameters,
		typename TLinearSolverType::Pointer	pLinearSolver
	)

inline

Alternative constructor.

It uses a Kratos parameters to set the different variables and parameters

Parameters

ThisParameters	The parameters taht contain the different parameters for configuration
pLinearSolver	The linear solver used to solve the system of equations

◆ PowerIterationEigenvalueSolver() [4/4]

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::PowerIterationEigenvalueSolver ( const PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType > & Other )

inline

Copy constructor.

◆ ~PowerIterationEigenvalueSolver()

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::~PowerIterationEigenvalueSolver ( )

inlineoverride

Destructor.

Member Function Documentation

◆ Info()

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

std::string Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::Info ( ) const

inlineoverridevirtual

Turn back information as a string.

Reimplemented from Kratos::LinearSolver< TSparseSpaceType, TDenseSpaceType, Reorderer< TSparseSpaceType, TDenseSpaceType > >.

◆ KRATOS_CLASS_POINTER_DEFINITION()

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::KRATOS_CLASS_POINTER_DEFINITION ( PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType > )

Pointer definition of PowerIterationEigenvalueSolver.

◆ operator=()

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

PowerIterationEigenvalueSolver& Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::operator= ( const PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType > & Other )

inline

Assignment operator.

◆ PrintData()

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

void Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::PrintData ( std::ostream & rOStream ) const

inlineoverridevirtual

Print object's data.

Reimplemented from Kratos::LinearSolver< TSparseSpaceType, TDenseSpaceType, Reorderer< TSparseSpaceType, TDenseSpaceType > >.

◆ PrintInfo()

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

void Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::PrintInfo ( std::ostream & rOStream ) const

inlineoverridevirtual

Print information about this object.

Reimplemented from Kratos::LinearSolver< TSparseSpaceType, TDenseSpaceType, Reorderer< TSparseSpaceType, TDenseSpaceType > >.

◆ Solve()

template<class TSparseSpaceType , class TDenseSpaceType , class TLinearSolverType , class TPreconditionerType = Preconditioner<TSparseSpaceType, TDenseSpaceType>, class TReordererType = Reorderer<TSparseSpaceType, TDenseSpaceType>>

void Kratos::PowerIterationEigenvalueSolver< TSparseSpaceType, TDenseSpaceType, TLinearSolverType, TPreconditionerType, TReordererType >::Solve	(	SparseMatrixType &	K,
		SparseMatrixType &	M,
		DenseVectorType &	Eigenvalues,
		DenseMatrixType &	Eigenvectors
	)

inlineoverridevirtual

The power iteration algorithm.

Parameters

K	The stiffness matrix
M	The mass matrix
Eigenvalues	The vector containing the eigen values
Eigenvectors	The matrix containing the eigen vectors

Reimplemented from Kratos::LinearSolver< TSparseSpaceType, TDenseSpaceType, Reorderer< TSparseSpaceType, TDenseSpaceType > >.

The documentation for this class was generated from the following file:

/home/runner/work/Documentation/Documentation/master/kratos/linear_solvers/power_iteration_eigenvalue_solver.h

Public Member Functions

Type Definitions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ BaseType

◆ DenseMatrixType

◆ DenseVectorType

◆ IndexType

◆ SizeType

◆ SparseMatrixType

◆ VectorType

Constructor & Destructor Documentation

◆ PowerIterationEigenvalueSolver() [1/4]

◆ PowerIterationEigenvalueSolver() [2/4]

◆ PowerIterationEigenvalueSolver() [3/4]

◆ PowerIterationEigenvalueSolver() [4/4]

◆ ~PowerIterationEigenvalueSolver()

Member Function Documentation

◆ Info()

◆ KRATOS_CLASS_POINTER_DEFINITION()

◆ operator=()

◆ PrintData()

◆ PrintInfo()

◆ Solve()