sll_m_nufft_interpolation Module Reference

Derived types and interfaces
type	sll_t_nufft_2d
	Nufft object for 2d interpolation. It contains fft plan and 1d array to pass data to nufft2d subroutine from nufft package. More...

Functions/Subroutines
subroutine	sll_s_nufft_2d_init (self, nc_eta1, eta1_min, eta1_max, nc_eta2, eta2_min, eta2_max)
	Allocate and initialize data and prepare the fft plan. More...
subroutine	sll_s_nufft_2d_free (self)
	Delete the nufft object. More...
subroutine	sll_s_nufft_2d_compute_fft (self, f_in)
	Compute the fft and prepare data for nufft call. More...
real(kind=f64) function	sll_f_nufft_2d_interpolate_value_from_fft (self, x, y)
	Interpolate single value when the fft is already compute. More...
subroutine	sll_s_nufft_2d_interpolate_array_values (self, f_in, x, y, f_out)
	Compute the fft and interpolate array values. More...
subroutine	sll_s_nufft_2d_interpolate_array_values_axi (self, f, x, y)
	Compute the fft and interpolate array values when x and y could be outside the domaine. Useful for rotation and axisymetric geometry. More...
subroutine	sll_s_nufft_2d_interpolate_array_from_fft (self, x, y, f)
	Compute the fft and interpolate array values when x and y are surely inside the domain. Optimized version for advector. More...

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Data Type Documentation

sll_m_nufft_interpolation::sll_t_nufft_2d

type sll_m_nufft_interpolation::sll_t_nufft_2d

Nufft object for 2d interpolation. It contains fft plan and 1d array to pass data to nufft2d subroutine from nufft package.

Definition at line 13 of file sll_m_nufft_interpolation.F90.

Collaboration diagram for sll_t_nufft_2d:

Class Members
real(kind=f64)	epsnufft
real(kind=f64)	eta1_max
real(kind=f64)	eta1_min
real(kind=f64)	eta2_max
real(kind=f64)	eta2_min
complex(kind=f64), dimension(:), allocatable	f1
complex(kind=f64), dimension(:), allocatable	f1d
complex(kind=f64), dimension(:), allocatable	f2
complex(kind=f64), dimension(:, :), allocatable	fcmplx
type(sll_t_fft)	fft
integer(kind=i32), dimension(:), allocatable	i
integer(kind=i32), dimension(:), allocatable	j
integer(kind=i32)	nc_eta1
integer(kind=i32)	nc_eta2
real(kind=f64), dimension(:), allocatable	x
real(kind=f64), dimension(:), allocatable	y

Function/Subroutine Documentation

sll_f_nufft_2d_interpolate_value_from_fft()

real(kind=f64) function sll_m_nufft_interpolation::sll_f_nufft_2d_interpolate_value_from_fft	(	type(sll_t_nufft_2d)	self,
		real(kind=f64), intent(in)	x,
		real(kind=f64), intent(in)	y
	)

Interpolate single value when the fft is already compute.

Definition at line 122 of file sll_m_nufft_interpolation.F90.

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sll_s_nufft_2d_compute_fft()

subroutine sll_m_nufft_interpolation::sll_s_nufft_2d_compute_fft	(	type(sll_t_nufft_2d)	self,
		real(kind=f64), dimension(:, :), intent(in)	f_in
	)

Compute the fft and prepare data for nufft call.

Definition at line 93 of file sll_m_nufft_interpolation.F90.

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sll_s_nufft_2d_free()

subroutine sll_m_nufft_interpolation::sll_s_nufft_2d_free

(

type(sll_t_nufft_2d)

self

)

Delete the nufft object.

Definition at line 76 of file sll_m_nufft_interpolation.F90.

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sll_s_nufft_2d_init()

subroutine sll_m_nufft_interpolation::sll_s_nufft_2d_init	(	type(sll_t_nufft_2d)	self,
		integer(kind=i32), intent(in)	nc_eta1,
		real(kind=f64), intent(in)	eta1_min,
		real(kind=f64), intent(in)	eta1_max,
		integer(kind=i32), intent(in)	nc_eta2,
		real(kind=f64), intent(in)	eta2_min,
		real(kind=f64), intent(in)	eta2_max
	)

Allocate and initialize data and prepare the fft plan.

Parameters

	self	nufft 2d object
[in]	nc_eta1	number of cells on x1
[in]	nc_eta2	number of cells on x2
[in]	eta1_min	left
[in]	eta1_max	right
[in]	eta2_min	bottom
[in]	eta2_max	top

Definition at line 37 of file sll_m_nufft_interpolation.F90.

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sll_s_nufft_2d_interpolate_array_from_fft()

subroutine sll_m_nufft_interpolation::sll_s_nufft_2d_interpolate_array_from_fft	(	type(sll_t_nufft_2d)	self,
		real(kind=f64), dimension(:, :), intent(in)	x,
		real(kind=f64), dimension(:, :), intent(in)	y,
		real(kind=f64), dimension(:, :), intent(out)	f
	)

Compute the fft and interpolate array values when x and y are surely inside the domain. Optimized version for advector.

Definition at line 235 of file sll_m_nufft_interpolation.F90.

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sll_s_nufft_2d_interpolate_array_values()

subroutine sll_m_nufft_interpolation::sll_s_nufft_2d_interpolate_array_values	(	type(sll_t_nufft_2d)	self,
		real(kind=f64), dimension(:, :), intent(in)	f_in,
		real(kind=f64), dimension(:, :), intent(in)	x,
		real(kind=f64), dimension(:, :), intent(in)	y,
		real(kind=f64), dimension(:, :), intent(out)	f_out
	)

Compute the fft and interpolate array values.

Definition at line 165 of file sll_m_nufft_interpolation.F90.

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sll_s_nufft_2d_interpolate_array_values_axi()

subroutine sll_m_nufft_interpolation::sll_s_nufft_2d_interpolate_array_values_axi	(	type(sll_t_nufft_2d)	self,
		real(kind=f64), dimension(:, :), intent(inout)	f,
		real(kind=f64), dimension(:, :), intent(in)	x,
		real(kind=f64), dimension(:, :), intent(in)	y
	)

Compute the fft and interpolate array values when x and y could be outside the domaine. Useful for rotation and axisymetric geometry.

Definition at line 182 of file sll_m_nufft_interpolation.F90.

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