ug::MatrixOperator< M, X, Y > Class Template Reference

#include <matrix_operator.h>

Inheritance diagram for ug::MatrixOperator< M, X, Y >:

Public Types
typedef Y	codomain_function_type
typedef X	domain_function_type
typedef M	matrix_type
Public Types inherited from ug::ILinearOperator< X, Y >
typedef Y	codomain_function_type
	Range space.
typedef X	domain_function_type
	Domain space.
Public Types inherited from ug::IOperator< X, Y >
typedef Y	codomain_function_type
	Range space.
typedef X	domain_function_type
	Domain space.

Public Member Functions
virtual void	apply (Y &f, const X &u)
virtual void	apply_sub (Y &f, const X &u)
virtual M &	get_matrix ()
virtual void	init ()
	init operator
virtual void	init (const X &u)
	init operator depending on a function u
Public Member Functions inherited from ug::ILinearOperator< X, Y >
virtual void	prepare (X &u)
	default implementation for IOperator interface
virtual	~ILinearOperator ()
	virtual destructor
Public Member Functions inherited from ug::IOperator< X, Y >
virtual	~IOperator ()
	virtual destructor

Member Typedef Documentation

codomain_function_type

template<typename M , typename X , typename Y = X>

typedef Y ug::MatrixOperator< M, X, Y >::codomain_function_type

domain_function_type

template<typename M , typename X , typename Y = X>

typedef X ug::MatrixOperator< M, X, Y >::domain_function_type

matrix_type

template<typename M , typename X , typename Y = X>

typedef M ug::MatrixOperator< M, X, Y >::matrix_type

Member Function Documentation

apply()

template<typename M , typename X , typename Y = X>

virtual void ug::MatrixOperator< M, X, Y >::apply ( Y &  f, const X &  u  )

inlinevirtual

This method applies the operator, i.e. f = L*u (or d = J(u)*c in iterative schemes). Note, that the operator must have been initialized once before this method can be used.

Parameters

[in]	u	domain function
[out]	f	codomain function

Returns

bool success flag

Implements ug::ILinearOperator< X, Y >.

Reimplemented in ug::AssembledLinearOperator< TAlgebra >, ug::AssembledLinearOperator< algebra_type >, ug::AssembledLinearOperator< ug::CPUAlgebra >, and ug::SchurComplementMatrixOperator< TAlgebra, M, X, Y >.

apply_sub()

template<typename M , typename X , typename Y = X>

virtual void ug::MatrixOperator< M, X, Y >::apply_sub ( Y &  f, const X &  u  )

inlinevirtual

This method applies the operator and subracts the result from the input codomain function, i.e. f -= L*u (or d -= J(u)*c in iterative schemes). Note, that the operator must have been initialized once before this method can be used.

Parameters

[in]	u	domain function
[in,out]	f	codomain function

Returns

bool success flag

Implements ug::ILinearOperator< X, Y >.

Reimplemented in ug::AssembledLinearOperator< TAlgebra >, ug::AssembledLinearOperator< algebra_type >, ug::AssembledLinearOperator< ug::CPUAlgebra >, and ug::SchurComplementMatrixOperator< TAlgebra, M, X, Y >.

Referenced by ug::AssembledMultiGridCycle< TDomain, TAlgebra >::base_solve(), ug::AssembledMultiGridCycle< TDomain, TAlgebra >::presmooth_and_restriction(), and ug::AssembledMultiGridCycle< TDomain, TAlgebra >::prolongation_and_postsmooth().

get_matrix()

template<typename M , typename X , typename Y = X>

virtual M & ug::MatrixOperator< M, X, Y >::get_matrix ( )

inlinevirtual

Reimplemented in ug::SchurComplementMatrixOperator< TAlgebra, M, X, Y >, and ug::SchurComplementMatrixOperator< TAlgebra, matrix_type, vector_type >.

Referenced by ug::IExternalSolver< TAlgebra >::init(), ug::LU< TAlgebra >::init(), ug::DebugIterator< TAlgebra >::init(), ug::SchurInverseWithFullMatrix< TAlgebra >::init(), ug::AgglomeratingBase< TBase, TAlgebra >::init_collected_vec(), ug::AgglomeratingBase< TBase, TAlgebra >::init_mat(), ug::MatAdd(), ug::MatIdentity(), ug::MatScale(), ug::MatTranspose(), ug::SchurPrecond< TAlgebra >::num_global_skeleton(), ug::SaveMatrixToMTX(), and ug::SchurComplementOperator< TAlgebra >::sub_matrix().

init() [1/2]

template<typename M , typename X , typename Y = X>

virtual void ug::MatrixOperator< M, X, Y >::init ( )

inlinevirtual

init operator

This method initializes the operator. Once initialized the 'apply'-method can be called. If the operator is a linearization this function returns false.

Returns

bool success flag

Implements ug::ILinearOperator< X, Y >.

Reimplemented in ug::SchurComplementMatrixOperator< TAlgebra, M, X, Y >, ug::SchurComplementMatrixOperator< TAlgebra, matrix_type, vector_type >, ug::AssembledLinearOperator< TAlgebra >, ug::AssembledLinearOperator< algebra_type >, and ug::AssembledLinearOperator< ug::CPUAlgebra >.

init() [2/2]

template<typename M , typename X , typename Y = X>

virtual void ug::MatrixOperator< M, X, Y >::init ( const X &  u )

inlinevirtual

init operator depending on a function u

This method initializes the operator. Once initialized the 'apply'-method can be called. The function u is passed here, since the linear operator may be the linearization of some non-linear operator. Thus, the operator depends on the linearization point. If the operator is not a linearization, this method can be implemented by simply calling init() and forgetting about the linearization point.

Parameters

[in]

u

function (linearization point)

Returns

bool success flag

Implements ug::ILinearOperator< X, Y >.

Reimplemented in ug::AssembledLinearOperator< TAlgebra >, ug::AssembledLinearOperator< algebra_type >, ug::AssembledLinearOperator< ug::CPUAlgebra >, and ug::SchurComplementMatrixOperator< TAlgebra, M, X, Y >.

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

• ugbase/lib_algebra/operator/interface/matrix_operator.h