local_interpolation Module Reference

Routines to obtain interpolated values on a set of points with known rst coordinates in elements local to this process.

Data Types
type	local_interpolator_t
	Interpolation on a set of points with known rst coordinates in elements local to this process. Similar to point_interpolator, but prioritizes performance Only works with arrays of coordinates Performs interpolation with the configured NEKO_BCKND. More...

Functions/Subroutines
subroutine	local_interpolator_init (this, xh, r, s, t, n_points)
	Initialization of point interpolation.
subroutine	local_interpolator_free (this)
	Free pointers.
subroutine	local_interpolator_compute_weights (this, r, s, t)
	Computes interpolation weights \( w_r, w_s, w_t \) for a list of points.
subroutine	local_interpolator_evaluate (this, interp_values, el_list, field, nel)
	Interpolates a list of fields based on a set of element ids.

Function/Subroutine Documentation

local_interpolator_compute_weights()

subroutine local_interpolation::local_interpolator_compute_weights	(	class(local_interpolator_t), intent(inout)	this,
		real(kind=rp), dimension(:), intent(in)	r,
		real(kind=rp), dimension(:), intent(in)	s,
		real(kind=rp), dimension(:), intent(in)	t
	)

Parameters

r	local r-coordinates.
s	local s-coordinates.
t	local t-coordinates.
wr	Weights in the r-direction.
ws	Weights in the s-direction.
wt	Weights in the t-direction.

Note

wr, ws and wt must be arrays of dimensions (lx, N) where N is the number of points (size of the r,s,t arrays).

Definition at line 147 of file local_interpolation.f90.

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local_interpolator_evaluate()

subroutine local_interpolation::local_interpolator_evaluate	(	class(local_interpolator_t), intent(inout)	this,
		real(kind=rp), dimension(this%n_points), intent(inout)	interp_values,
		integer, dimension(this%n_points), intent(in)	el_list,
		real(kind=rp), dimension(this%xh%lxyz, nel), intent(inout)	field,
		integer, intent(in)	nel
	)

Parameters

rst	r,s,t coordinates.
el_owners	Array of element ids that "own" a given point i.
sampled_fields_list	A list of fields to interpolate.
wr	Weights in the r-direction of shape (lx, N) where N is the number of points to interpolate.
ws	Weights in the s-direction of shape (lx, N) where N is the number of points to interpolate.
wt	Weights in the t-direction of shape (lx, N) where N is the number of points to interpolate.

Note

The weights can be generated with the subroutine compute_weights. Assumes weights have been computed for these points.

Definition at line 175 of file local_interpolation.f90.

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local_interpolator_free()

subroutine local_interpolation::local_interpolator_free

(

class(local_interpolator_t), intent(inout)

this

)

Definition at line 118 of file local_interpolation.f90.

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local_interpolator_init()

subroutine local_interpolation::local_interpolator_init	(	class(local_interpolator_t), intent(inout), target	this,
		type(space_t), intent(in), target	xh,
		real(kind=rp), dimension(n_points)	r,
		real(kind=rp), dimension(n_points)	s,
		real(kind=rp), dimension(n_points)	t,
		integer, intent(in)	n_points
	)

Parameters

xh	Function space.

Definition at line 83 of file local_interpolation.f90.