gsINSPrecondBlockMod< T > Class Template Reference

Detailed Description

template<class T>
class gismo::gsINSPrecondBlockMod< T >

Base class for block F of (modified) block preconditioner of the form.

\[ \left[ \begin{array}{cc} F & B^T \\ 0 & S \end{array} \right], \]

where several systems have to be solved.

Inheritance diagram for gsINSPrecondBlockMod< T >:

Collaboration diagram for gsINSPrecondBlockMod< T >:

Public Member Functions
virtual void	apply (const gsMatrix< T > &input, gsMatrix< T > &x) const =0
	apply the operator on the input vector and store the result in x
virtual index_t	cols () const =0
	Returns the number of columns of the operator.
gsSparseSolver< T > *	createLinSolver ()
	Returns a pointer to new linear solver (direct or iterative).
	gsINSPrecondBlockMod (const gsOptionList &opt)
	Constructor.
virtual index_t	rows () const =0
	Returns the number of rows of the operator.
virtual void	setOptions (const gsOptionList &)
	Set options based on a gsOptionList object.
void	setupLinSolver (gsSparseSolver< T > &solver)
	Set up the linear solver for the block.

Static Public Member Functions
static gsOptionList	defaultOptions ()
	Get the default options as gsOptionList object.
static gsIdentityOp< T >	Identity (const index_t dim)
	Identity operator.

Constructor & Destructor Documentation

gsINSPrecondBlockMod()

template<class T >

gsINSPrecondBlockMod ( const gsOptionList &  opt )

inline

Constructor.

Parameters

[in]

opt

a list of options for the preconditioner

Member Function Documentation

apply()

template<class T >

virtual void apply ( const gsMatrix< T > &  input, gsMatrix< T > &  x  ) const

pure virtualinherited

apply the operator on the input vector and store the result in x

Parameters

input	Input vector
x	result vector

Implemented in gsIterativeSolverOp< SolverType >, gsBlockOp< T >, gsINSPrecondBlockF< T, MatOrder >, gsINSPrecondBlockFwhole< T, MatOrder >, gsINSPrecondBlockFdiag< T, MatOrder >, gsINSPrecondBlockFmod< T, MatOrder >, gsINSBlockPrecondBase< T, MatOrder >, gsINSBlockPrecondSIMPLE< T, MatOrder, BlockFType >, gsINSBlockPrecondSIMPLE< T, MatOrder, gsINSPrecondBlockF< T, MatOrder > >, gsINSBlockPrecondSIMPLER< T, MatOrder, BlockFType >, gsINSBlockPrecondMSIMPLER< T, MatOrder, BlockFType >, gsBlockPrecondStokes< T, MatOrder, BlockFType >, gsAdditiveOp< T >, gsKroneckerOp< T >, gsScaledOp< T >, gsIdentityOp< T >, gsLinearLambdaOp< T, L >, gsMatrixOp< MatrixType >, gsSolverOp< SolverType >, gsPreconditionerOp< T >, gsProductOp< T >, gsSumOp< T >, and gsPreconditionerFromOp< T >.

setupLinSolver()

template<class T >

void setupLinSolver ( gsSparseSolver< T > &  solver )

inherited

Set up the linear solver for the block.

Parameters

[out]

solver

a reference to the solver object