ConstTransfer< T > Class Template Reference

Class templates for transfer operators based on ansatz functions that are constant on the elements over bisected grids. More...

#include <ConstTransfer.hpp>

Inheritance diagram for ConstTransfer< T >:

[legend]Collaboration diagram for ConstTransfer< T >:

[legend]List of all members.

Public Member Functions
void	PrintParam ()
	Prints the name of the transfer object and (optionally) the parameters.
virtual bool	ProperGrids (const Array< int > &p_domain_size, const Array< int > &p_range_size)
	Returns true if the grid sizes may correspond to the domain and the range of the prolongation (or the range and the domain of the restriction).
void	Prolong (MultiVector< T > &src, MultiVector< T > &dst)
	Prolongs the coarse grid.
void	Restrict (MultiVector< T > &src, MultiVector< T > &dst)
	The restriction.
	ConstTransfer (unsigned the_disp_type=SG_DISP_NO)
	Constructor which sets the display type.
Static Public Member Functions
static void	copy_from_coarse_grid (int init_dim, MultiVector< T > &src, MultiIndex &src_index, MultiVector< T > &dst, MultiIndex &dst_index)
	Copies the values of the coarse grid cells to the corresponding ('lower left' in 2D) cells of the fine grid.
static void	spread_subgrids (int init_dim, const Array< int > &coarse_sizes, MultiVector< T > &vec, MultiIndex &index)
	Recursively copies the values from the 'coarse grid cells' to the neighbouring cells. The 'coarse grid cells' should be initialized.
static void	integr_subgrids (int init_dim, const Array< int > &coarse_sizes, MultiVector< T > &vec, MultiIndex &index)
	Computes the restriction on the subgrids.
static void	copy_from_fine_grid (int init_dim, MultiVector< T > &src, MultiIndex &src_index, MultiVector< T > &dst, MultiIndex &dst_index)
	Copies the values of the 'coarse grid cells' of a fine grid to the corresponding cells of the coarse grid.

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Detailed Description

template<typename T>
class ConstTransfer< T >

Class templates for transfer operators based on ansatz functions that are constant on the elements over bisected grids.

The templates depend on a type T. This type should satisfy the conditions listed in 'small_matrix.hpp' for small matrices.

Date:

Nov. 24, 2004 - created

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Constructor & Destructor Documentation

template<typename T>

ConstTransfer< T >::ConstTransfer

(

unsigned

the_disp_type = SG_DISP_NO

)

[inline]

Constructor which sets the display type.

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Member Function Documentation

template<typename T>

void ConstTransfer< T >::PrintParam

(

)

[inline, virtual]

Prints the name of the transfer object and (optionally) the parameters.

Implements SysTransfer< T >.

template<typename T>

virtual bool ConstTransfer< T >::ProperGrids	(	const Array< int > &	p_domain_size,
		const Array< int > &	p_range_size
	)			[inline, virtual]

Returns true if the grid sizes may correspond to the domain and the range of the prolongation (or the range and the domain of the restriction).

Note:

The grid sizes corresponding to the same dimensions should be either halved or equal.

Parameters:

[in]	p_domain_size	For the domain of the prolongation
[in]	p_range_size	For the range of the prolongation

Implements Transfer< T >.

template<typename T>

void ConstTransfer< T >::Prolong	(	MultiVector< T > &	src,
		MultiVector< T > &	dst
	)			[inline, virtual]

Prolongs the coarse grid.

It is implemented as computation of halved sums of manyfolds of the grid. We do it recursively and start with the manyfolds of the smallest dimensionality.

Parameters:

[in]	src	The vector to prolong
[out]	dst	The result (the sizes must be initialized!)

Implements Transfer< T >.

template<typename T>

void ConstTransfer< T >::Restrict	(	MultiVector< T > &	src,
		MultiVector< T > &	dst
	)			[inline, virtual]

The restriction.

Parameters:

[in]	src	The vector to restrict
[out]	dst	The result (the sizes must be initialized!)

Implements Transfer< T >.

template<typename T>

void ConstTransfer< T >::copy_from_coarse_grid	(	int	init_dim,
		MultiVector< T > &	src,
		MultiIndex &	src_index,
		MultiVector< T > &	dst,
		MultiIndex &	dst_index
	)			[inline, static]

Copies the values of the coarse grid cells to the corresponding ('lower left' in 2D) cells of the fine grid.

Parameters:

[in]	init_dim	The dimension index to start with
[in]	src	The coarse grid vector
[in]	src_index	The initial index for the coarse grid
[in]	dst	The fine grid vector
[in]	dst_index	The initial index for the fine grid

template<typename T>

void ConstTransfer< T >::spread_subgrids	(	int	init_dim,
		const Array< int > &	coarse_sizes,
		MultiVector< T > &	vec,
		MultiIndex &	index
	)			[inline, static]

Recursively copies the values from the 'coarse grid cells' to the neighbouring cells. The 'coarse grid cells' should be initialized.

Parameters:

[in]	init_dim	The dimension index to start with
[in]	coarse_sizes	The coarse grid sizes
[in]	vec	The vector to process
[in]	index	The initial index

template<typename T>

void ConstTransfer< T >::integr_subgrids	(	int	init_dim,
		const Array< int > &	coarse_sizes,
		MultiVector< T > &	vec,
		MultiIndex &	index
	)			[inline, static]

Computes the restriction on the subgrids.

Parameters:

[in]	init_dim	The dimension index to start with
[in]	coarse_sizes	The coarse grid sizes
[in]	vec	The vector to process
[in]	index	The initial index

template<typename T>

void ConstTransfer< T >::copy_from_fine_grid	(	int	init_dim,
		MultiVector< T > &	src,
		MultiIndex &	src_index,
		MultiVector< T > &	dst,
		MultiIndex &	dst_index
	)			[inline, static]

Copies the values of the 'coarse grid cells' of a fine grid to the corresponding cells of the coarse grid.

Parameters:

[in]	init_dim	The dimension index to start with
[in]	src	The fine grid vector
[in]	src_index	The initial index for the fine grid
[in]	dst	The coarse grid vector
[in]	dst_index	The initial index for the coarse grid

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

• ConstTransfer.hpp
• ConstTransfer.cc

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