Arbitrary dense matrix, with underlying geometry. More...

#include <Kernel.hpp>

Inheritance diagram for strumpack::kernel::DenseKernel< scalar_t >:

Collaboration diagram for strumpack::kernel::DenseKernel< scalar_t >:

Public Member Functions
	DenseKernel (DenseMatrix< scalar_t > &data, DenseMatrix< scalar_t > &A, scalar_t lambda)

scalar_t	eval (std::size_t i, std::size_t j) const override

void	permute () override

Public Member Functions inherited from strumpack::kernel::Kernel< scalar_t >
	Kernel (DenseM_t &data, scalar_t lambda)

virtual	~Kernel ()=default

std::size_t	n () const

std::size_t	d () const

void	operator() (const std::vector< std::size_t > &I, const std::vector< std::size_t > &J, DenseMatrix< real_t > &B) const

void	operator() (const std::vector< std::size_t > &I, const std::vector< std::size_t > &J, DenseMatrix< std::complex< real_t >> &B) const

DenseM_t	fit_HSS (std::vector< scalar_t > &labels, const HSS::HSSOptions< scalar_t > &opts)

std::vector< scalar_t >	predict (const DenseM_t &test, const DenseM_t &weights) const

DistM_t	fit_HSS (const BLACSGrid &grid, std::vector< scalar_t > &labels, const HSS::HSSOptions< scalar_t > &opts)

std::vector< scalar_t >	predict (const DenseM_t &test, const DistM_t &weights) const

DenseM_t	fit_HODLR (const MPIComm &c, std::vector< scalar_t > &labels, const HODLR::HODLROptions< scalar_t > &opts)

const DenseM_t &	data () const

DenseM_t &	data ()

std::vector< int > &	permutation ()

const std::vector< int > &	permutation () const

Detailed Description

template<typename scalar_t>
class strumpack::kernel::DenseKernel< scalar_t >

Arbitrary dense matrix, with underlying geometry.

This is a subclass of Kernel. It overrides the eval routine, unlike other kernel classes (Gauss and Laplace), which only implement the kernel function.

See also: Kernel, GaussKernel, LaplaceKernel

Constructor & Destructor Documentation

◆ DenseKernel()

template<typename scalar_t >

strumpack::kernel::DenseKernel< scalar_t >::DenseKernel	(	DenseMatrix< scalar_t > &	data,
		DenseMatrix< scalar_t > &	A,
		scalar_t	lambda
	)

inline

Constructor of the dense matrix kernel object.

Parameters

data	Coordinates of the points used to generate the matrix.
A	The actual dense matrix
lambda	Regularization parameter, added to the diagonal

Member Function Documentation

◆ eval()

template<typename scalar_t >

scalar_t strumpack::kernel::DenseKernel< scalar_t >::eval	(	std::size_t	i,
		std::size_t	j
	)		const

inlineoverridevirtual

Evaluate an entry of the kernel matrix.

Parameters

i	row coordinate of entry to evaluate
j	column coordinate of entry to evaluate

Returns: the value K(i, j) of the kernel

Reimplemented from strumpack::kernel::Kernel< scalar_t >.

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

/home/pieterg/LBL/STRUMPACK/src/kernel/Kernel.hpp