viennacl::circulant_matrix< NumericT, AlignmentV > Class Template Reference

A Circulant matrix class. More...

#include <circulant_matrix.hpp>

Public Types
typedef viennacl::backend::mem_handle	handle_type
typedef scalar< typename viennacl::tools::CHECK_SCALAR_TEMPLATE_ARGUMENT< NumericT >::ResultType >	value_type

Public Member Functions
	circulant_matrix ()
	The default constructor. Does not allocate any memory. More...
	circulant_matrix (vcl_size_t rows, vcl_size_t cols)
	Creates the matrix with the given size. More...
void	resize (vcl_size_t sz, bool preserve=true)
	Resizes the matrix. Existing entries can be preserved. More...
handle_type const &	handle () const
	Returns the OpenCL handle. More...
viennacl::vector< NumericT, AlignmentV > &	elements ()
	Returns an internal viennacl::vector, which represents a circulant matrix elements. More...
viennacl::vector< NumericT, AlignmentV > const &	elements () const
vcl_size_t	size1 () const
	Returns the number of rows of the matrix. More...
vcl_size_t	size2 () const
	Returns the number of columns of the matrix. More...
vcl_size_t	internal_size () const
	Returns the internal size of matrix representtion. Usually required for launching OpenCL kernels only. More...
entry_proxy< NumericT >	operator() (vcl_size_t row_index, vcl_size_t col_index)
	Read-write access to a single element of the matrix. More...
circulant_matrix< NumericT, AlignmentV > &	operator+= (circulant_matrix< NumericT, AlignmentV > &that)
	+= operation for circulant matrices More...

Detailed Description

template<class NumericT, unsigned int AlignmentV>
class viennacl::circulant_matrix< NumericT, AlignmentV >

A Circulant matrix class.

Template Parameters

NumericT	The underlying scalar type (either float or double)
AlignmentV	The internal memory size is given by (size()/AlignmentV + 1) * AlignmentV. AlignmentV must be a power of two. Best values or usually 4, 8 or 16, higher values are usually a waste of memory.

Examples:

structured-matrices.cpp.

Definition at line 41 of file circulant_matrix.hpp.

Member Typedef Documentation

template<class NumericT, unsigned int AlignmentV>

typedef viennacl::backend::mem_handle viennacl::circulant_matrix< NumericT, AlignmentV >::handle_type

Definition at line 44 of file circulant_matrix.hpp.

template<class NumericT, unsigned int AlignmentV>

typedef scalar<typename viennacl::tools::CHECK_SCALAR_TEMPLATE_ARGUMENT<NumericT>::ResultType> viennacl::circulant_matrix< NumericT, AlignmentV >::value_type

Definition at line 45 of file circulant_matrix.hpp.

Constructor & Destructor Documentation

template<class NumericT, unsigned int AlignmentV>

viennacl::circulant_matrix< NumericT, AlignmentV >::circulant_matrix ( )

inlineexplicit

The default constructor. Does not allocate any memory.

Definition at line 51 of file circulant_matrix.hpp.

template<class NumericT, unsigned int AlignmentV>

viennacl::circulant_matrix< NumericT, AlignmentV >::circulant_matrix ( vcl_size_t  rows, vcl_size_t  cols  )

inlineexplicit

Creates the matrix with the given size.

Parameters

rows	Number of rows of the matrix
cols	Number of columns of the matrix

Definition at line 59 of file circulant_matrix.hpp.

Member Function Documentation

template<class NumericT, unsigned int AlignmentV>

viennacl::vector<NumericT, AlignmentV>& viennacl::circulant_matrix< NumericT, AlignmentV >::elements ( )

inline

Returns an internal viennacl::vector, which represents a circulant matrix elements.

Definition at line 86 of file circulant_matrix.hpp.

template<class NumericT, unsigned int AlignmentV>

viennacl::vector<NumericT, AlignmentV> const& viennacl::circulant_matrix< NumericT, AlignmentV >::elements ( ) const

inline

Definition at line 87 of file circulant_matrix.hpp.

template<class NumericT, unsigned int AlignmentV>

handle_type const& viennacl::circulant_matrix< NumericT, AlignmentV >::handle ( ) const

inline

Returns the OpenCL handle.

Returns

OpenCL handle

Definition at line 80 of file circulant_matrix.hpp.

template<class NumericT, unsigned int AlignmentV>

vcl_size_t viennacl::circulant_matrix< NumericT, AlignmentV >::internal_size ( ) const

inline

Returns the internal size of matrix representtion. Usually required for launching OpenCL kernels only.

Returns

Internal size of matrix representation

Definition at line 104 of file circulant_matrix.hpp.

template<class NumericT, unsigned int AlignmentV>

entry_proxy<NumericT> viennacl::circulant_matrix< NumericT, AlignmentV >::operator() ( vcl_size_t  row_index, vcl_size_t  col_index  )

inline

Read-write access to a single element of the matrix.

Parameters

row_index	Row index of accessed element
col_index	Column index of accessed element

Returns

Proxy for matrix entry

Definition at line 113 of file circulant_matrix.hpp.

template<class NumericT, unsigned int AlignmentV>

circulant_matrix<NumericT, AlignmentV>& viennacl::circulant_matrix< NumericT, AlignmentV >::operator+= ( circulant_matrix< NumericT, AlignmentV > &  that )

inline

+= operation for circulant matrices

Parameters

that	Matrix which will be added

Returns

Result of addition

Definition at line 130 of file circulant_matrix.hpp.

template<class NumericT, unsigned int AlignmentV>

void viennacl::circulant_matrix< NumericT, AlignmentV >::resize ( vcl_size_t  sz, bool  preserve = true  )

inline

Resizes the matrix. Existing entries can be preserved.

Parameters

sz	New size of matrix
preserve	If true, existing values are preserved.

Definition at line 71 of file circulant_matrix.hpp.

template<class NumericT, unsigned int AlignmentV>

vcl_size_t viennacl::circulant_matrix< NumericT, AlignmentV >::size1 ( ) const

inline

Returns the number of rows of the matrix.

Definition at line 92 of file circulant_matrix.hpp.

template<class NumericT, unsigned int AlignmentV>

vcl_size_t viennacl::circulant_matrix< NumericT, AlignmentV >::size2 ( ) const

inline

Returns the number of columns of the matrix.

Definition at line 97 of file circulant_matrix.hpp.

---

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

• viennacl/circulant_matrix.hpp