Thyra::DefaultDiagonalLinearOpWithSolve< Scalar > Class Template Reference

Concrete LinearOpWithSolveBase subclass for diagonal linear operators. More...

#include <Thyra_DefaultDiagonalLinearOpWithSolveDecl.hpp>

Inheritance diagram for Thyra::DefaultDiagonalLinearOpWithSolve< Scalar >:

[legend]List of all members.

Constructors/initializers/accessors
	DefaultDiagonalLinearOpWithSolve ()
	Constructs to uninitialized.
	DefaultDiagonalLinearOpWithSolve (const Teuchos::RCP< const VectorBase< Scalar > > &diag)
	Calls initialize().
Overridden from SingleScalarLinearOpWithSolveBase
bool	solveSupportsTrans (EOpTransp M_trans) const
bool	solveSupportsSolveMeasureType (EOpTransp M_trans, const SolveMeasureType &solveMeasureType) const
Overridden from SingleRhsLinearOpWithSolveBase
SolveStatus< Scalar >	solve (const EOpTransp M_trans, const VectorBase< Scalar > &b, VectorBase< Scalar > *x, const SolveCriteria< Scalar > *solveCriteria) const

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Detailed Description

template<class Scalar>
class Thyra::DefaultDiagonalLinearOpWithSolve< Scalar >

Concrete LinearOpWithSolveBase subclass for diagonal linear operators.

This class represents a diagonal linear operator M of the form:

 M = diag(diag)
 

where diag is a VectorBase object.

The defined operator implements <tt>this->apply() as follows:

 y = alpha*op(M)*x + beta*y
 
 =>

 y(i) = alpha*diag(i)*x(i) + beta*y(i), for i = 0 ... n-1
 

where n = this->domain()->dim().

The defined operator implements <tt>this->solve() as follows:

 x = inv(op(M))*b
 
 =>

 x(i) = b(i)/diag(i), for i = 0 ... n-1
 

where n = this->domain()->dim().

That is all there is to this subclass.

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Constructor & Destructor Documentation

template<class Scalar> Thyra::DefaultDiagonalLinearOpWithSolve< Scalar >::DefaultDiagonalLinearOpWithSolve (   )

Constructs to uninitialized. Postconditions: this->getDiag().get()==NULL

template<class Scalar> Thyra::DefaultDiagonalLinearOpWithSolve< Scalar >::DefaultDiagonalLinearOpWithSolve (  const Teuchos::RCP< const VectorBase< Scalar > > &  diag  )

Calls initialize().

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Member Function Documentation

template<class Scalar> bool Thyra::DefaultDiagonalLinearOpWithSolve< Scalar >::solveSupportsTrans (  EOpTransp  M_trans  )  const [protected, virtual]

Implements Thyra::SingleScalarLinearOpWithSolveBase< Scalar >.

template<class Scalar> bool Thyra::DefaultDiagonalLinearOpWithSolve< Scalar >::solveSupportsSolveMeasureType (  EOpTransp  M_trans, const SolveMeasureType &  solveMeasureType )  const [protected, virtual]

Implements Thyra::SingleScalarLinearOpWithSolveBase< Scalar >.

template<class Scalar> SolveStatus< Scalar > Thyra::DefaultDiagonalLinearOpWithSolve< Scalar >::solve (  const EOpTransp  M_trans, const VectorBase< Scalar > &  b, VectorBase< Scalar > *  x, const SolveCriteria< Scalar > *  solveCriteria )  const [protected, virtual]

Implements Thyra::SingleRhsLinearOpWithSolveBase< Scalar >.

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

• Thyra_DefaultDiagonalLinearOpWithSolveDecl.hpp
• Thyra_DefaultDiagonalLinearOpWithSolve.hpp

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