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Free open-source GPU-accelerated linear algebra and solver library.
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viennacl::vandermonde_matrix< SCALARTYPE, ALIGNMENT > Class Template Reference

A Vandermonde 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

 vandermonde_matrix ()
 The default constructor. Does not allocate any memory. More...
 
 vandermonde_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 Vandermonde 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< NumericToperator() (vcl_size_t row_index)
 Read-write access to a base element of the matrix. More...
 
NumericT operator() (vcl_size_t row_index, vcl_size_t col_index) const
 Read access to a element of the matrix. More...
 

Detailed Description

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

A Vandermonde matrix class.

Template Parameters
NumericTThe underlying scalar type (either float or double)
AlignmentVThe 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 418 of file forwards.h.

Member Typedef Documentation

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>
typedef viennacl::backend::mem_handle viennacl::vandermonde_matrix< SCALARTYPE, ALIGNMENT >::handle_type

Definition at line 47 of file vandermonde_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>
typedef scalar<typename viennacl::tools::CHECK_SCALAR_TEMPLATE_ARGUMENT<NumericT>::ResultType> viennacl::vandermonde_matrix< SCALARTYPE, ALIGNMENT >::value_type

Definition at line 48 of file vandermonde_matrix.hpp.

Constructor & Destructor Documentation

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>
viennacl::vandermonde_matrix< SCALARTYPE, ALIGNMENT >::vandermonde_matrix ( )
inlineexplicit

The default constructor. Does not allocate any memory.

Definition at line 54 of file vandermonde_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>
viennacl::vandermonde_matrix< SCALARTYPE, ALIGNMENT >::vandermonde_matrix ( vcl_size_t  rows,
vcl_size_t  cols 
)
inlineexplicit

Creates the matrix with the given size.

Parameters
rowsNumber of rows of the matrix
colsNumber of columns of the matrix

Definition at line 62 of file vandermonde_matrix.hpp.

Member Function Documentation

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>
viennacl::vector<NumericT, AlignmentV>& viennacl::vandermonde_matrix< SCALARTYPE, ALIGNMENT >::elements ( )
inline

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

Definition at line 89 of file vandermonde_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>
viennacl::vector<NumericT, AlignmentV> const& viennacl::vandermonde_matrix< SCALARTYPE, ALIGNMENT >::elements ( ) const
inline

Definition at line 90 of file vandermonde_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>
handle_type const& viennacl::vandermonde_matrix< SCALARTYPE, ALIGNMENT >::handle ( ) const
inline

Returns the OpenCL handle.

Returns
OpenCL handle

Definition at line 83 of file vandermonde_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>
vcl_size_t viennacl::vandermonde_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 107 of file vandermonde_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>
entry_proxy<NumericT> viennacl::vandermonde_matrix< SCALARTYPE, ALIGNMENT >::operator() ( vcl_size_t  row_index)
inline

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

Parameters
row_indexRow index of accessed element
Returns
Proxy for matrix entry

Definition at line 115 of file vandermonde_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>
NumericT viennacl::vandermonde_matrix< SCALARTYPE, ALIGNMENT >::operator() ( vcl_size_t  row_index,
vcl_size_t  col_index 
) const
inline

Read access to a element of the matrix.

Parameters
row_indexRow index of accessed element
col_indexColumn index of accessed element
Returns
Proxy for matrix entry

Definition at line 127 of file vandermonde_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>
void viennacl::vandermonde_matrix< SCALARTYPE, ALIGNMENT >::resize ( vcl_size_t  sz,
bool  preserve = true 
)
inline

Resizes the matrix. Existing entries can be preserved.

Parameters
szNew size of matrix
preserveIf true, existing values are preserved.

Definition at line 74 of file vandermonde_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>
vcl_size_t viennacl::vandermonde_matrix< SCALARTYPE, ALIGNMENT >::size1 ( ) const
inline

Returns the number of rows of the matrix.

Definition at line 95 of file vandermonde_matrix.hpp.

template<class SCALARTYPE, unsigned int ALIGNMENT = 1>
vcl_size_t viennacl::vandermonde_matrix< SCALARTYPE, ALIGNMENT >::size2 ( ) const
inline

Returns the number of columns of the matrix.

Definition at line 100 of file vandermonde_matrix.hpp.


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