Thyra::MultipliedLinearOpBase< Scalar > Class Template Reference

Interface class for implicitly multiplied linear operators. More...

#include <Thyra_MultipliedLinearOpBase.hpp>

Inheritance diagram for Thyra::MultipliedLinearOpBase< Scalar >:

Pure virtual functions that must be overridden by subclasses
virtual int	numOps () const =0
	Returns the number of constituent operators. More...
virtual bool	opIsConst (const int k) const =0
	Determine if the kth constituent operator is const-only or not. More...
virtual Teuchos::RCP < LinearOpBase< Scalar > >	getNonconstOp (const int k)=0
	Return the kth non-constant constituent operator. More...
virtual Teuchos::RCP< const LinearOpBase< Scalar > >	getOp (const int k) const =0
	Return the kth constant constituent operator. More...

Additional Inherited Members
Public Member Functions inherited from Thyra::LinearOpBase< Scalar >
virtual RCP< const VectorSpaceBase< Scalar > >	range () const =0
	Return a smart pointer for the range space for this operator. More...
virtual RCP< const VectorSpaceBase< Scalar > >	domain () const =0
	Return a smart pointer for the domain space for this operator. More...
bool	opSupported (EOpTransp M_trans) const
	Return if the M_trans operation of apply() is supported or not. More...
void	apply (const EOpTransp M_trans, const MultiVectorBase< Scalar > &X, const Ptr< MultiVectorBase< Scalar > > &Y, const Scalar alpha, const Scalar beta) const
	Apply the linear operator to a multi-vector : Y = alpha*op(M)*X + beta*Y. More...
virtual RCP< const LinearOpBase< Scalar > >	clone () const
	Clone the linear operator object (if supported). More...
Protected Member Functions inherited from Thyra::LinearOpBase< Scalar >
virtual bool	opSupportedImpl (EOpTransp M_trans) const =0
	Override in subclass. More...
virtual void	applyImpl (const EOpTransp M_trans, const MultiVectorBase< Scalar > &X, const Ptr< MultiVectorBase< Scalar > > &Y, const Scalar alpha, const Scalar beta) const =0
	Override in subclass. More...
Related Functions inherited from Thyra::LinearOpBase< Scalar >
template<class Scalar >
bool	isFullyUninitialized (const LinearOpBase< Scalar > &M)
	Determines if a linear operator is in the "Fully Uninitialized" state or not. More...
template<class Scalar >
bool	isPartiallyInitialized (const LinearOpBase< Scalar > &M)
	Determines if a linear operator is in the "Partially Initialized" state or not. More...
template<class Scalar >
bool	isFullyInitialized (const LinearOpBase< Scalar > &M)
	Determines if a linear operator is in the "Fully Initialized" state or not. More...
template<class Scalar >
bool	opSupported (const LinearOpBase< Scalar > &M, EOpTransp M_trans)
	Determines if an operation is supported for a single scalar type. More...
template<class Scalar >
void	apply (const LinearOpBase< Scalar > &M, const EOpTransp M_trans, const MultiVectorBase< Scalar > &X, const Ptr< MultiVectorBase< Scalar > > &Y, const Scalar alpha=static_cast< Scalar >(1.0), const Scalar beta=static_cast< Scalar >(0.0))
	Non-member function call for M.apply(...). More...
void	apply (const LinearOpBase< double > &M, const EOpTransp M_trans, const MultiVectorBase< double > &X, const Ptr< MultiVectorBase< double > > &Y, const double alpha=1.0, const double beta=0.0)
	Calls apply<double>(...). More...

Detailed Description

template<class Scalar>
class Thyra::MultipliedLinearOpBase< Scalar >

Interface class for implicitly multiplied linear operators.

This interface represents a multiplied linear operator M of the form:

M = Op[0] * Op[1] * ... * Op[numOps-1]

where Op[] is an array of numOps LinearOpBase objects. Of course the operator M is not constructed explicitly but instead just applies the constituent linear operators accordingly using temporaries.

In other words, subclasses define apply() as:

y = alpha*M*x + beta*y
  = alpha * ( Op[0] * ( Op[1] * ( .... ( Op[numOps-1] * x ) ... ) ) ) + beta * y

Definition at line 75 of file Thyra_MultipliedLinearOpBase.hpp.

Member Function Documentation

template<class Scalar>

virtual int Thyra::MultipliedLinearOpBase< Scalar >::numOps ( ) const

pure virtual

Returns the number of constituent operators.

A return value of 0 indicates that this is not fully initialized.

Implemented in Thyra::DefaultMultipliedLinearOp< Scalar >.

template<class Scalar>

virtual bool Thyra::MultipliedLinearOpBase< Scalar >::opIsConst ( const int  k ) const

pure virtual

Determine if the kth constituent operator is const-only or not.

Parameters

k	[in] The zero-based index of the constituent operator to return.

Preconditions:

• 0 <= k < this->numOps()

Implemented in Thyra::DefaultMultipliedLinearOp< Scalar >.

template<class Scalar>

virtual Teuchos::RCP<LinearOpBase<Scalar> > Thyra::MultipliedLinearOpBase< Scalar >::getNonconstOp ( const int  k )

pure virtual

Return the kth non-constant constituent operator.

Parameters

k	[in] The zero-based index of the constituent operator to return.

Preconditions:

• 0 <= k < this->numOps()
• this->opIsConst(k)==false

Implemented in Thyra::DefaultMultipliedLinearOp< Scalar >.

template<class Scalar>

virtual Teuchos::RCP<const LinearOpBase<Scalar> > Thyra::MultipliedLinearOpBase< Scalar >::getOp ( const int  k ) const

pure virtual

Return the kth constant constituent operator.

Parameters

k	[in] The zero-based index of the constituent operator to return.

Preconditions:

• 0 <= k < this->numOps()

Implemented in Thyra::DefaultMultipliedLinearOp< Scalar >.

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

• Thyra_MultipliedLinearOpBase.hpp