fftw_oct_m Module Reference

Functions/Subroutines
subroutine, public	fftw_prepare_plan (plan, dim, n, howmany, batch_axis, is_real, sign, flags, din_, cin_, cout_)
subroutine, public	fftw_get_dims (rs_n, is_real, fs_n)
subroutine, public	fftw_alloc_memory (rs_dims, is_real, fs_dims, drs_data, zrs_data, fs_data)
	Allocate the FFTW work buffers. The rank-4 dimension arrays (which already carry the batch axis at the right position — see fft_pack) are used verbatim, so this routine is oblivious to the batch layout. More...
subroutine, public	fftw_free_memory (is_real, drs_data, zrs_data, fs_data)

Function/Subroutine Documentation

fftw_prepare_plan()

subroutine, public fftw_oct_m::fftw_prepare_plan	(	type(c_ptr), intent(inout)	plan,
		integer, intent(in)	dim,
		integer, dimension(:), intent(in)	n,
		integer(c_int), intent(in)	howmany,
		integer, intent(in)	batch_axis,
		logical, intent(in)	is_real,
		integer, intent(in)	sign,
		integer, intent(in)	flags,
		real(real64), dimension(:,:,:,:), intent(in), optional, target	din_,
		complex(real64), dimension(:,:,:,:), intent(in), optional, target	cin_,
		complex(real64), dimension(:,:,:,:), intent(in), optional, target	cout_
	)

Parameters

[in]

batch_axis

1 (batch-first) or 4 (batch-last); required

Definition at line 182 of file fftw.F90.

fftw_get_dims()

subroutine, public fftw_oct_m::fftw_get_dims	(	integer, dimension(:), intent(in)	rs_n,
		logical, intent(in)	is_real,
		integer, dimension(:), intent(out)	fs_n
	)

Definition at line 335 of file fftw.F90.

fftw_alloc_memory()

subroutine, public fftw_oct_m::fftw_alloc_memory	(	integer, dimension(4), intent(in)	rs_dims,
		logical, intent(in)	is_real,
		integer, dimension(4), intent(in)	fs_dims,
		real(real64), dimension(:,:,:,:), intent(inout), pointer	drs_data,
		complex(real64), dimension(:,:,:,:), intent(inout), pointer	zrs_data,
		complex(real64), dimension(:,:,:,:), intent(inout), pointer	fs_data
	)

Allocate the FFTW work buffers. The rank-4 dimension arrays (which already carry the batch axis at the right position — see fft_pack) are used verbatim, so this routine is oblivious to the batch layout.

Parameters

[in]	rs_dims	real-space dimensions including the batch axis
[in]	fs_dims	Fourier-space dimensions including the batch axis

Definition at line 352 of file fftw.F90.

fftw_free_memory()

subroutine, public fftw_oct_m::fftw_free_memory	(	logical, intent(in)	is_real,
		real(real64), dimension(:,:,:,:), intent(inout), pointer	drs_data,
		complex(real64), dimension(:,:,:,:), intent(inout), pointer	zrs_data,
		complex(real64), dimension(:,:,:,:), intent(inout), pointer	fs_data
	)

Definition at line 379 of file fftw.F90.