viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT > Class Template Reference

A Hankel matrix class. More...

#include <forwards.h>

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
	hankel_matrix ()
	The default constructor. Does not allocate any memory. More...
	hankel_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...
toeplitz_matrix< NumericT, AlignmentV > &	elements ()
	Returns an internal viennacl::toeplitz_matrix, which represents a Hankel matrix elements. More...
toeplitz_matrix< 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() (unsigned int row_index, unsigned int col_index)
	Read-write access to a element of the matrix. More...
hankel_matrix< NumericT, AlignmentV > &	operator+= (hankel_matrix< NumericT, AlignmentV > &that)
	+= operation for Hankel matrices More...

Detailed Description

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>
class viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT >

A Hankel 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 412 of file forwards.h.

Member Typedef Documentation

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>

typedef viennacl::backend::mem_handle viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT >::handle_type

Definition at line 46 of file hankel_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>

typedef scalar<typename viennacl::tools::CHECK_SCALAR_TEMPLATE_ARGUMENT<NumericT>::ResultType> viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT >::value_type

Definition at line 47 of file hankel_matrix.hpp.

Constructor & Destructor Documentation

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>

viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT >::hankel_matrix ( )

inlineexplicit

The default constructor. Does not allocate any memory.

Definition at line 53 of file hankel_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>

viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT >::hankel_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 61 of file hankel_matrix.hpp.

Member Function Documentation

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>

toeplitz_matrix<NumericT, AlignmentV>& viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT >::elements ( )

inline

Returns an internal viennacl::toeplitz_matrix, which represents a Hankel matrix elements.

Definition at line 88 of file hankel_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>

toeplitz_matrix<NumericT, AlignmentV> const& viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT >::elements ( ) const

inline

Definition at line 89 of file hankel_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>

handle_type const& viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT >::handle ( ) const

inline

Returns the OpenCL handle.

Returns

OpenCL handle

Definition at line 82 of file hankel_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>

vcl_size_t viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT >::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 106 of file hankel_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>

entry_proxy<NumericT> viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT >::operator() ( unsigned int  row_index, unsigned int  col_index  )

inline

Read-write access to a 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 115 of file hankel_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>

hankel_matrix<NumericT, AlignmentV>& viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT >::operator+= ( hankel_matrix< NumericT, AlignmentV > &  that )

inline

+= operation for Hankel matrices

Parameters

that	Matrix which will be added

Returns

Result of addition

Definition at line 128 of file hankel_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>

void viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT >::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 73 of file hankel_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>

vcl_size_t viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT >::size1 ( ) const

inline

Returns the number of rows of the matrix.

Definition at line 94 of file hankel_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>

vcl_size_t viennacl::hankel_matrix< SCALARTYPE, ALIGNMENT >::size2 ( ) const

inline

Returns the number of columns of the matrix.

Definition at line 99 of file hankel_matrix.hpp.

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

• viennacl/forwards.h
• viennacl/hankel_matrix.hpp