Pscf::Pspg::FFTBatched< D > Class Template Reference

Fourier transform wrapper for real data. More...

#include <FFTBatched.h>

Public Member Functions
	FFTBatched ()
	Default constructor. More...
virtual	~FFTBatched ()
	Destructor. More...
void	setup (RDField< D > &rDField, RDFieldDft< D > &kDField)
	Check and setup grid dimensions if necessary. More...
void	forwardTransform (RDField< D > &in, RDFieldDft< D > &out)
	Compute forward (real-to-complex) Fourier transform. More...
void	inverseTransform (RDFieldDft< D > &in, RDField< D > &out)
	Compute inverse (complex-to-real) Fourier transform. More...
const IntVec< D > &	meshDimensions () const
	Return the dimensions of the grid for which this was allocated. More...

Detailed Description

template<int D>
class Pscf::Pspg::FFTBatched< D >

Fourier transform wrapper for real data.

Definition at line 36 of file FFTBatched.h.

Constructor & Destructor Documentation

FFTBatched()

template<int D>

Pscf::Pspg::FFTBatched< D >::FFTBatched

Default constructor.

Definition at line 46 of file FFTBatched.tpp.

~FFTBatched()

template<int D>

Pscf::Pspg::FFTBatched< D >::~FFTBatched

virtual

Destructor.

Definition at line 59 of file FFTBatched.tpp.

Member Function Documentation

setup()

template<int D>

void Pscf::Pspg::FFTBatched< D >::setup	(	RDField< D > &	rDField,
		RDFieldDft< D > &	kDField
	)

Check and setup grid dimensions if necessary.

Parameters

rDField	real data on r-space grid (device mem)
kDField	complex data on k-space grid (device mem)

Definition at line 73 of file FFTBatched.tpp.

References Pscf::Pspg::RDField< D >::meshDimensions(), Pscf::Pspg::RDFieldDft< D >::meshDimensions(), and UTIL_CHECK.

forwardTransform()

template<int D>

void Pscf::Pspg::FFTBatched< D >::forwardTransform	(	RDField< D > &	in,
		RDFieldDft< D > &	out
	)

Compute forward (real-to-complex) Fourier transform.

Parameters

in	array of real values on r-space grid (device mem)
out	array of complex values on k-space grid (device mem)

Definition at line 248 of file FFTBatched.tpp.

References Pscf::Pspg::DField< Data >::capacity(), Pscf::Pspg::DField< Data >::cDField(), Pscf::Pspg::ThreadGrid::setThreadsLogical(), and UTIL_CHECK.

inverseTransform()

template<int D>

void Pscf::Pspg::FFTBatched< D >::inverseTransform	(	RDFieldDft< D > &	in,
		RDField< D > &	out
	)

Compute inverse (complex-to-real) Fourier transform.

Parameters

in	array of complex values on k-space grid (device mem)
out	array of real values on r-space grid (device mem)

Definition at line 326 of file FFTBatched.tpp.

References Pscf::Pspg::DField< Data >::cDField().

meshDimensions()

template<int D>

const IntVec< D > & Pscf::Pspg::FFTBatched< D >::meshDimensions

inline

Return the dimensions of the grid for which this was allocated.

Definition at line 123 of file FFTBatched.h.

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

• FFTBatched.h
• FFTBatched.tpp