FFTAcceleration_scalBlocks_v0 Class Reference

Inheritance diagram for FFTAcceleration_scalBlocks_v0:

Public Member Functions
	FFTAcceleration_scalBlocks_v0 (int order)
void	FFT_initialize_Target (FFTAccelerableExpansion &Expansion)
void	FFT_initialize_Source (FFTAccelerableExpansion &Expansion, double radius)
void	FFT_initialize_TransferFunction (FFTAccelerableExpansion &Expansion)
void	FFT_finalize_Target (FFTAccelerableExpansion &Expansion, double radius)
void	FFT_M2L (FFTAccelerableExpansion &Source, FFTAccelerableExpansion &Target, FFTDataContainer *TransferFunction)
void	FFT_M2L_vec (FFTAccelerableExpansion &Source, FFTAccelerableExpansion &Target, FFTDataContainer *TransferFunction)
Public Member Functions inherited from FFTAccelerationAPI
virtual	~FFTAccelerationAPI ()
	destructor, child class will be upcasted, virtual destructor required to call the right child class destructor

Protected Member Functions
FFTDataContainer_scalBlocks_v0 *	getFFTData (FFTAccelerableExpansion &Expansion)
FFTDataContainer_scalBlocks_v0 *	getFFTData_scal (FFTAccelerableExpansion &Expansion)

Protected Attributes
optFFT_API *	_optFFT_API
int	_nbBlocks
int	_nbLinePerBlock
int *	_blockSize
Protected Attributes inherited from FFTAccelerationAPI
int	_p
int	_fft_nx
	order of the expansions (start at 0 so usually order+1)
int	_fft_ny
	number of line of the FFT matrices (or similar)

Member Function Documentation

FFT_finalize_Target()

void FFTAcceleration_scalBlocks_v0::FFT_finalize_Target ( FFTAccelerableExpansion &  Expansion, double  radius  )

virtual

Finalize a Target expansion by adding the result of the M2L stored in Fourier space to the expansion values.

Include the rescaling using the radius parameter, should be the same as the one used by FFT_initialize_Source

Parameters

FFTAccelerableExpansion	& Expansion
double	radius

Implements FFTAccelerationAPI.

FFT_initialize_Source()

void FFTAcceleration_scalBlocks_v0::FFT_initialize_Source ( FFTAccelerableExpansion &  Expansion, double  radius  )

virtual

Initialize a source expansion's FFTDatacontainer, including rescaling using the radius parameter (see doc/Rescalling)

Parameters

FFTAccelerableExpansion	& Expansion
double	radius

Implements FFTAccelerationAPI.

FFT_initialize_Target()

void FFTAcceleration_scalBlocks_v0::FFT_initialize_Target ( FFTAccelerableExpansion &  Expansion )

virtual

Initialize a Target expansion's FFTDatacontainer (schould be to a full 0 FFTDatacontainer)

Parameters

FFTAccelerableExpansion

& Expansion

Implements FFTAccelerationAPI.

FFT_initialize_TransferFunction()

void FFTAcceleration_scalBlocks_v0::FFT_initialize_TransferFunction ( FFTAccelerableExpansion &  Expansion )

virtual

Initialize a source expansion's FFTDatacontainer, all subsequent transformations (flip of the matrix or rescaling of scaling blocks for example) should be done here.

Parameters

FFTAccelerableExpansion

& Expansion

Implements FFTAccelerationAPI.

FFT_M2L()

void FFTAcceleration_scalBlocks_v0::FFT_M2L ( FFTAccelerableExpansion &  Source, FFTAccelerableExpansion &  Target, FFTDataContainer *  TransferFunction  )

virtual

M2L operator, performs the M2L in fourier space, usually an entrywise product (or more complexe scheme if needed, see blocks implementations)

All parameters needs to be initialized using the previous methods The TransferFunction should come from a TransferFunctionManager

Parameters

FFTAccelerableExpansion	& Source
FFTAccelerableExpansion	& Target
FFTDataContainer*	TransferFunction

Implements FFTAccelerationAPI.

FFT_M2L_vec()

void FFTAcceleration_scalBlocks_v0::FFT_M2L_vec ( FFTAccelerableExpansion &  Source, FFTAccelerableExpansion &  Target, FFTDataContainer *  TransferFunction  )

virtual

M2L operator, performs the M2L in fourier space, usually an entrywise product (or more complexe scheme if needed, see blocks implementations)

Uses vectorization of the loops

All parameters needs to be initialized using the previous methods The TransferFunction should come from a TransferFunctionManager

Parameters

FFTAccelerableExpansion	& Source
FFTAccelerableExpansion	& Target
FFTDataContainer*	TransferFunction

Implements FFTAccelerationAPI.

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

• src/bhfmm/fft/FFTAccelerationImplementations/block/FFTAcceleration_scalBlocks_v0.h
• src/bhfmm/fft/FFTAccelerationImplementations/block/FFTAcceleration_scalBlocks_v0.cpp