ryujin::DiagonalPreconditioner< dim, Number > Class Template Reference

#include <source/diagonal_preconditioner.h>

Public Types
using	scalar_type = typename OfflineData< dim, Number >::scalar_type
using	block_vector_type = dealii::LinearAlgebra::distributed::BlockVector< Number >

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

Detailed Description

template<int dim, typename Number>
class ryujin::DiagonalPreconditioner< dim, 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

scalar_type

template<int dim, typename Number >

using ryujin::DiagonalPreconditioner< dim, Number >::scalar_type = typename OfflineData<dim, Number>::scalar_type

Shorthand typedef for dealii::LinearAlgebra::distributed::Vector<Number>.

Definition at line 29 of file diagonal_preconditioner.h.

block_vector_type

template<int dim, typename Number >

using ryujin::DiagonalPreconditioner< dim, Number >::block_vector_type = dealii::LinearAlgebra::distributed::BlockVector<Number>

A distributed block vector used for temporary storage of the velocity field.

Definition at line 35 of file diagonal_preconditioner.h.

Constructor & Destructor Documentation

DiagonalPreconditioner()

template<int dim, typename Number >

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

default

Constructor

Member Function Documentation

reinit()

template<int dim, typename Number >

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

inline

Reinit with a scalar partitioner

Definition at line 46 of file diagonal_preconditioner.h.

scaling_vector()

template<int dim, typename Number >

scalar_type & ryujin::DiagonalPreconditioner< dim, Number >::scaling_vector ( )

inline

Get access to the internal vector to be externally filled.

Definition at line 55 of file diagonal_preconditioner.h.

vmult() [1/2]

template<int dim, typename Number >

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

inline

Apply on a scalar vector.

Definition at line 63 of file diagonal_preconditioner.h.

vmult() [2/2]

template<int dim, typename Number >

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

inline

Apply on a block vector.

Definition at line 78 of file diagonal_preconditioner.h.

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

• source/diagonal_preconditioner.h