FFT< CCTransform, Dim, T > Class Template Reference

#include <FFT.h>

Inheritance diagram for FFT< CCTransform, Dim, T >:

[legend]Collaboration diagram for FFT< CCTransform, Dim, T >:

[legend]List of all members.

Public Types
typedef FieldLayout< Dim >	Layout_t
typedef complex	Complex_t
typedef BareField< Complex_t, Dim >	ComplexField_t
typedef LField< Complex_t, Dim >	ComplexLField_t
typedef FFTBase< Dim, T >::Domain_t	Domain_t
Public Member Functions
	FFT (const Domain_t &cdomain, const bool transformTheseDims[Dim], const bool &compressTemps=false)
	FFT (const Domain_t &cdomain, const bool &compressTemps=false)
	~FFT (void)
void	transform (int direction, ComplexField_t &f, ComplexField_t &g, const bool &constInput=false)
void	transform (const char *directionName, ComplexField_t &f, ComplexField_t &g, const bool &constInput=false)
void	transform (int direction, ComplexField_t &f)
void	transform (const char *directionName, ComplexField_t &f)

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Detailed Description

template<unsigned Dim, class T>
class FFT< CCTransform, Dim, T >

complex-to-complex FFT class

Definition at line 58 of file FFT.h.

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Member Typedef Documentation

template<unsigned Dim, class T> typedef complex FFT< CCTransform, Dim, T >::Complex_t

Definition at line 67 of file FFT.h.

template<unsigned Dim, class T> typedef BareField<Complex_t,Dim> FFT< CCTransform, Dim, T >::ComplexField_t

Definition at line 69 of file FFT.h.

template<unsigned Dim, class T> typedef LField<Complex_t,Dim> FFT< CCTransform, Dim, T >::ComplexLField_t

Definition at line 70 of file FFT.h.

template<unsigned Dim, class T> typedef FFTBase<Dim,T>::Domain_t FFT< CCTransform, Dim, T >::Domain_t

Reimplemented from FFTBase< Dim, T >. Definition at line 71 of file FFT.h.

template<unsigned Dim, class T> typedef FieldLayout<Dim> FFT< CCTransform, Dim, T >::Layout_t

Definition at line 63 of file FFT.h.

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Constructor & Destructor Documentation

template<unsigned Dim, class T> FFT< CCTransform, Dim, T >::FFT (  const Domain_t &  cdomain, const bool  transformTheseDims[Dim], const bool &  compressTemps = false )

Create a new FFT object with the given domain for the input Field. Specify which dimensions to transform along. Optional argument compressTemps indicates whether or not to compress temporary Fields in between uses.

template<unsigned Dim, class T> FFT< CCTransform, Dim, T >::FFT (  const Domain_t &  cdomain, const bool &  compressTemps = false )  [inline]

Create a new FFT object of type CCTransform, with a given domain. Default case of transforming along all dimensions. Note this was formerly in the .cpp file, but the IBM linker could not find it! Definition at line 87 of file FFT.h. References FFTBase< Dim, T >::getNormFact(). Here is the call graph for this function:

template<unsigned Dim, class T> FFT< CCTransform, Dim, T >::~FFT (  void   )

Definition at line 149 of file FFT.cpp. References CT, FFTBase< Dim, T >::numTransformDims(), TAU_FFT, TAU_PROFILE, and TAU_TYPE_STRING. Here is the call graph for this function:

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Member Function Documentation

template<unsigned Dim, class T> void FFT< CCTransform, Dim, T >::transform (  const char *  directionName, ComplexField_t &  f )  [inline]

Definition at line 133 of file FFT.h. References FieldLayout< Dim >::getDistribution(), FieldLayout< Dim >::getDomain(), BareField< T, Dim >::getGC(), BareField< T, Dim >::getLayout(), PAssert, SERIAL, and TAU_PROFILE_START. Here is the call graph for this function:

template<unsigned Dim, class T> void FFT< CCTransform, Dim, T >::transform (  int  direction, ComplexField_t &  f )

overloaded versions which perform the FFT "in place"

template<unsigned Dim, class T> void FFT< CCTransform, Dim, T >::transform (  const char *  directionName, ComplexField_t &  f, ComplexField_t &  g, const bool &  constInput = false )

invoke using string for direction name

template<unsigned Dim, class T> void FFT< CCTransform, Dim, T >::transform (  int  direction, ComplexField_t &  f, ComplexField_t &  g, const bool &  constInput = false )

Do the FFT: specify +1 or -1 to indicate forward or inverse transform, or specify the user-defined name string for the direction. User provides separate input and output fields optional argument constInput indicates whether or not to treat the input Field argument f as const. If not, we can use it as a temporary in order to avoid an additional data transpose.

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

• src/FFT/FFT.h
• src/FFT/FFT.cpp

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