fft_mod Module Reference

Fortran module for Eigen FFTs. More...

Data Types
interface	fft_fourier_to_grid
interface	fft_fwd_c
interface	fft_grid_to_fourier
interface	fft_inv_c

Functions/Subroutines
complex(r4_kind) function, dimension(lenc, size(grid, 2))	fft_grid_to_fourier_float_2d (grid)
real(r4_kind) function, dimension(leng1, size(fourier, 2))	fft_fourier_to_grid_float_2d (fourier)
complex(r8_kind) function, dimension(lenc, size(grid, 2))	fft_grid_to_fourier_double_2d (grid)
real(r8_kind) function, dimension(leng1, size(fourier, 2))	fft_fourier_to_grid_double_2d (fourier)
complex(r4_kind) function, dimension(lenc, size(grid, 2), size(grid, 3))	fft_grid_to_fourier_float_3d (grid)
real(r4_kind) function, dimension(leng1, size(fourier, 2), size(fourier, 3))	fft_fourier_to_grid_float_3d (fourier)
complex(r8_kind) function, dimension(lenc, size(grid, 2), size(grid, 3))	fft_grid_to_fourier_double_3d (grid)
real(r8_kind) function, dimension(leng1, size(fourier, 2), size(fourier, 3))	fft_fourier_to_grid_double_3d (fourier)
subroutine, public	fft_init (n)
subroutine, public	fft_end
	This routine is called to unset the transform size and deallocate memory. More...
subroutine	error_handler (routine, message)
subroutine, public	fft_fwd (kk, pg, pf)
subroutine, public	fft_inv (kk, pf, pg)

Variables
real(r8_kind), dimension(:), allocatable	table8
real(r4_kind), dimension(:), allocatable	table4
real, dimension(:), allocatable	table99
integer, dimension(:), allocatable	ifax
logical	do_log =.true.
integer	leng
integer	leng1
integer	leng2
integer	lenc
logical	module_is_initialized =.false.

Detailed Description

Fortran module for Eigen FFTs.

Function/Subroutine Documentation

error_handler()

subroutine fft_mod::error_handler ( character(len=*), intent(in)  routine, character(len=*), intent(in)  message  )

private

Definition at line 1097 of file fft.F90.

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fft_fourier_to_grid_double_2d()

real (r8_kind) function, dimension(leng1,size(fourier,2)) fft_mod::fft_fourier_to_grid_double_2d ( complex(r8_kind), dimension(:,:), intent(in)  fourier )

private

Definition at line 703 of file fft.F90.

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fft_fourier_to_grid_double_3d()

real (r8_kind) function, dimension(leng1,size(fourier,2),size(fourier,3)) fft_mod::fft_fourier_to_grid_double_3d ( complex(r8_kind), dimension(:,:,:), intent(in)  fourier )

private

Definition at line 930 of file fft.F90.

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fft_fourier_to_grid_float_2d()

real (r4_kind) function, dimension(leng1,size(fourier,2)) fft_mod::fft_fourier_to_grid_float_2d ( complex(r4_kind), dimension(:,:), intent(in)  fourier )

private

Definition at line 425 of file fft.F90.

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fft_fourier_to_grid_float_3d()

real (r4_kind) function, dimension(leng1,size(fourier,2),size(fourier,3)) fft_mod::fft_fourier_to_grid_float_3d ( complex(r4_kind), dimension(:,:,:), intent(in)  fourier )

private

Definition at line 857 of file fft.F90.

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fft_fwd()

subroutine, public fft_mod::fft_fwd	(	integer, intent(in)	kk,
		real(kind_real), dimension(kk), intent(in)	pg,
		real(kind_real), dimension(kk+2), intent(out)	pf
	)

Definition at line 49 of file fft_mod.F90.

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fft_grid_to_fourier_double_2d()

complex(r8_kind) function, dimension(lenc,size(grid,2)) fft_mod::fft_grid_to_fourier_double_2d ( real (r8_kind), dimension(:,:), intent(in)  grid )

private

Definition at line 566 of file fft.F90.

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fft_grid_to_fourier_double_3d()

complex(r8_kind) function, dimension(lenc,size(grid,2),size(grid,3)) fft_mod::fft_grid_to_fourier_double_3d ( real (r8_kind), dimension(:,:,:), intent(in)  grid )

private

Definition at line 888 of file fft.F90.

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fft_grid_to_fourier_float_2d()

complex(r4_kind) function, dimension(lenc,size(grid,2)) fft_mod::fft_grid_to_fourier_float_2d ( real (r4_kind), dimension(:,:), intent(in)  grid )

private

Definition at line 289 of file fft.F90.

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fft_grid_to_fourier_float_3d()

complex(r4_kind) function, dimension(lenc,size(grid,2),size(grid,3)) fft_mod::fft_grid_to_fourier_float_3d ( real (r4_kind), dimension(:,:,:), intent(in)  grid )

private

Definition at line 826 of file fft.F90.

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fft_init()

subroutine, public fft_mod::fft_init

(

integer, intent(in)

n

)

Definition at line 974 of file fft.F90.

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fft_inv()

subroutine, public fft_mod::fft_inv	(	integer, intent(in)	kk,
		real(kind_real), dimension(kk+2), intent(in)	pf,
		real(kind_real), dimension(kk), intent(out)	pg
	)

Definition at line 66 of file fft_mod.F90.

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Variable Documentation

do_log

logical fft_mod::do_log =.true.

private

Definition at line 237 of file fft.F90.

ifax

integer, dimension(:), allocatable fft_mod::ifax

private

Definition at line 235 of file fft.F90.

lenc

integer fft_mod::lenc

private

Definition at line 238 of file fft.F90.

leng

integer fft_mod::leng

private

Definition at line 238 of file fft.F90.

leng1

integer fft_mod::leng1

private

Definition at line 238 of file fft.F90.

leng2

integer fft_mod::leng2

private

Definition at line 238 of file fft.F90.

module_is_initialized

logical fft_mod::module_is_initialized =.false.

private

Definition at line 240 of file fft.F90.

table4

real(r4_kind), dimension(:), allocatable fft_mod::table4

private

Definition at line 233 of file fft.F90.

table8

real(r8_kind), dimension(:), allocatable fft_mod::table8

private

Definition at line 232 of file fft.F90.

table99

real, dimension(:), allocatable fft_mod::table99

private

Definition at line 234 of file fft.F90.