gmx_fft_fftpack Struct Reference

Description

Contents of the FFTPACK fft datatype.

Note that this is one of several possible implementations of gmx_fft_t.

FFTPACK only does 1d transforms, so we use a pointers to another fft for the transform in the next dimension. Thus, a 3d-structure contains a pointer to a 2d one, which in turns contains a pointer to a 1d. The 1d structure has next==NULL.

Public Attributes
int	ndim
	Dimensions, including our subdimensions. More...
int	n
	Number of points in this dimension. More...
int	ifac [15]
	15 bytes needed for cfft and rfft
struct gmx_fft *	next
	Pointer to next dimension, or NULL. More...
real *	work
	1st 4n reserved for cfft, 1st 2n for rfft

Member Data Documentation

int gmx_fft_fftpack::n

Number of points in this dimension.

int gmx_fft_fftpack::ndim

Dimensions, including our subdimensions.

struct gmx_fft* gmx_fft_fftpack::next

Pointer to next dimension, or NULL.

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

• src/gromacs/fft/fft_fftpack.cpp