ryujin::DiagonalPreconditioner< Number > Class Template Reference

#include <source/diagonal_preconditioner.h>

Public Types
using	ScalarHostVector = typename Vectors::ScalarHostVector< Number >
using	BlockHostVector = dealii::LinearAlgebra::distributed::BlockVector< Number >

Public Member Functions
	DiagonalPreconditioner ()=default
void	reinit (const std::shared_ptr< const dealii::Utilities::MPI::Partitioner > &scalar_partitioner)
ScalarHostVector &	scaling_vector ()
void	vmult (ScalarHostVector &dst, const ScalarHostVector &src) const
void	vmult (BlockHostVector &dst, const BlockHostVector &src) const

Detailed Description

template<typename Number>
class ryujin::DiagonalPreconditioner< Number >

A preconditioner implementing a diagonal scaling used for the non-multigrid CG iteration.

Definition at line 23 of file diagonal_preconditioner.h.

Member Typedef Documentation

ScalarHostVector

template<typename Number >

using ryujin::DiagonalPreconditioner< Number >::ScalarHostVector = typename Vectors::ScalarHostVector<Number>

Definition at line 29 of file diagonal_preconditioner.h.

BlockHostVector

template<typename Number >

using ryujin::DiagonalPreconditioner< Number >::BlockHostVector = dealii::LinearAlgebra::distributed::BlockVector<Number>

Definition at line 34 of file diagonal_preconditioner.h.

Constructor & Destructor Documentation

DiagonalPreconditioner()

template<typename Number >

ryujin::DiagonalPreconditioner< Number >::DiagonalPreconditioner ( )

default

Constructor

Member Function Documentation

reinit()

template<typename Number >

void ryujin::DiagonalPreconditioner< Number >::reinit ( const std::shared_ptr< const dealii::Utilities::MPI::Partitioner > &  scalar_partitioner )

inline

Reinit with a scalar partitioner

Definition at line 45 of file diagonal_preconditioner.h.

scaling_vector()

template<typename Number >

ScalarHostVector & ryujin::DiagonalPreconditioner< Number >::scaling_vector ( )

inline

Get access to the internal vector to be externally filled.

Definition at line 54 of file diagonal_preconditioner.h.

vmult() [1/2]

template<typename Number >

void ryujin::DiagonalPreconditioner< Number >::vmult ( ScalarHostVector &  dst, const ScalarHostVector &  src  ) const

inline

Apply on a scalar vector.

Definition at line 62 of file diagonal_preconditioner.h.

vmult() [2/2]

template<typename Number >

void ryujin::DiagonalPreconditioner< Number >::vmult ( BlockHostVector &  dst, const BlockHostVector &  src  ) const

inline

Apply on a block vector.

Definition at line 77 of file diagonal_preconditioner.h.

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

• source/diagonal_preconditioner.h