ModuleBase::SphericalBesselTransformer::Impl Class Reference

Collaboration diagram for ModuleBase::SphericalBesselTransformer::Impl:

Public Member Functions
	Impl (const bool cache_enabled=false)
	~Impl ()
	Impl (Impl const &)=delete
	Impl (Impl &&)=delete
Impl &	operator= (Impl const &)=delete
Impl &	operator= (Impl &&)=delete
void	radrfft (const int l, const int ngrid, const double cutoff, const double *const in, double *const out, const int p=0)
void	direct (const int l, const int ngrid_in, const double *const grid_in, const double *const in, const int ngrid_out, const double *const grid_out, double *const out, const int p=0)
size_t	heap_usage () const
void	clear ()

Private Member Functions
void	_rfft_prepare (const int n)
	buffer allocation and plan creation for in-place real-input FFT
void	_rfft_clear ()
	clear the FFTW plan and buffer
void	_tabulate (const int l, const int ngrid_in, const double *const grid_in, const int ngrid_out, const double *const grid_out)
	tabulate spherical Bessel function on the mesh grid
void	_table_clear ()
	clear the tabulated jl

Private Attributes
double *	f_ = nullptr
	buffer used for in-place real-input FFT
fftw_plan	rfft_plan_ = nullptr
	FFTW plan.
int	sz_planned_ = 0
	size of the planned FFT
const unsigned	fftw_plan_flag_
	planner flag used to create rfft_plan_
const bool	cache_enabled_ = false
	if true, jl values used in numerical integration will be cached
int	l_ = -1
	order of the cached spherical Bessel function
std::vector< double >	grid_in_
	cached input grid
std::vector< double >	grid_out_
	cached output grid
std::vector< double >	jl_
	cached spherical Bessel function values

Constructor & Destructor Documentation

Impl() [1/3]

ModuleBase::SphericalBesselTransformer::Impl::Impl

(

const bool

cache_enabled = false

)

~Impl()

ModuleBase::SphericalBesselTransformer::Impl::~Impl ( )

inline

Here is the call graph for this function:

Impl() [2/3]

ModuleBase::SphericalBesselTransformer::Impl::Impl ( Impl const &  )

delete

Impl() [3/3]

ModuleBase::SphericalBesselTransformer::Impl::Impl ( Impl &&  )

delete

Member Function Documentation

_rfft_clear()

void ModuleBase::SphericalBesselTransformer::Impl::_rfft_clear ( )

private

clear the FFTW plan and buffer

Here is the caller graph for this function:

_rfft_prepare()

void ModuleBase::SphericalBesselTransformer::Impl::_rfft_prepare ( const int  n )

private

buffer allocation and plan creation for in-place real-input FFT

_table_clear()

void ModuleBase::SphericalBesselTransformer::Impl::_table_clear ( )

private

clear the tabulated jl

_tabulate()

void ModuleBase::SphericalBesselTransformer::Impl::_tabulate ( const int  l, const int  ngrid_in, const double *const  grid_in, const int  ngrid_out, const double *const  grid_out  )

private

tabulate spherical Bessel function on the mesh grid

Here is the call graph for this function:

clear()

void ModuleBase::SphericalBesselTransformer::Impl::clear

(

)

direct()

void ModuleBase::SphericalBesselTransformer::Impl::direct	(	const int	l,
		const int	ngrid_in,
		const double *const	grid_in,
		const double *const	in,
		const int	ngrid_out,
		const double *const	grid_out,
		double *const	out,
		const int	p = 0
	)

Here is the call graph for this function:

heap_usage()

size_t ModuleBase::SphericalBesselTransformer::Impl::heap_usage

(

)

const

operator=() [1/2]

Impl & ModuleBase::SphericalBesselTransformer::Impl::operator= ( Impl &&  )

delete

operator=() [2/2]

Impl & ModuleBase::SphericalBesselTransformer::Impl::operator= ( Impl const &  )

delete

radrfft()

void ModuleBase::SphericalBesselTransformer::Impl::radrfft	(	const int	l,
		const int	ngrid,
		const double	cutoff,
		const double *const	in,
		double *const	out,
		const int	p = 0
	)

Here is the call graph for this function:

Member Data Documentation

cache_enabled_

const bool ModuleBase::SphericalBesselTransformer::Impl::cache_enabled_ = false

private

if true, jl values used in numerical integration will be cached

f_

double* ModuleBase::SphericalBesselTransformer::Impl::f_ = nullptr

private

buffer used for in-place real-input FFT

fftw_plan_flag_

const unsigned ModuleBase::SphericalBesselTransformer::Impl::fftw_plan_flag_

private

planner flag used to create rfft_plan_

grid_in_

std::vector<double> ModuleBase::SphericalBesselTransformer::Impl::grid_in_

private

cached input grid

grid_out_

std::vector<double> ModuleBase::SphericalBesselTransformer::Impl::grid_out_

private

cached output grid

jl_

std::vector<double> ModuleBase::SphericalBesselTransformer::Impl::jl_

private

cached spherical Bessel function values

l_

int ModuleBase::SphericalBesselTransformer::Impl::l_ = -1

private

order of the cached spherical Bessel function

rfft_plan_

fftw_plan ModuleBase::SphericalBesselTransformer::Impl::rfft_plan_ = nullptr

private

FFTW plan.

sz_planned_

int ModuleBase::SphericalBesselTransformer::Impl::sz_planned_ = 0

private

size of the planned FFT

---

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

• /home/runner/work/abacus-develop/abacus-develop/source/source_base/spherical_bessel_transformer.cpp