mod_int_fast_scheme_o4_centered Module Reference

Reconstruction Schemes with houc at order 3 (at the fixed +1/2 position). This scheme is compatible with non uniform grids. More...

Functions/Subroutines
subroutine	t_int_fast_scheme_o4_centered_compute_weights (stencil, nx, dx, shift, preweights)
	Compute the weights associated to the scheme at each cell in [1:nx].
double precision function	t_int_fast_scheme_o4_centered_apply_fast (self, values, preweights)
	Apply the corresponding scheme.

Variables
type(t_int_fast_scheme_o4_centered), target	int_fast_scheme_o4_centered

Detailed Description

Reconstruction Schemes with houc at order 3 (at the fixed +1/2 position). This scheme is compatible with non uniform grids.

Note

The fixed position is at the end of the 0's cell (for forward). This is the usual position for reconstruction schemes.

Function/Subroutine Documentation

t_int_fast_scheme_o4_centered_apply_fast()

double precision function mod_int_fast_scheme_o4_centered::t_int_fast_scheme_o4_centered_apply_fast	(	class(t_int_fast_scheme_o4_centered), intent(in)	self,
		double precision, dimension(:), intent(in)	values,
		class(t_int_grid_preweights), intent(in)	preweights )

Apply the corresponding scheme.

Parameters

[in]	self	The scheme
[in]	values	The discrete (mean) values of the function
[in]	preweights	The precomputed weights (

See also

t_int_grid_preweights)

Precondition

The scheme has already been initialized

t_int_fast_scheme_o4_centered_compute_weights()

subroutine mod_int_fast_scheme_o4_centered::t_int_fast_scheme_o4_centered_compute_weights	(	class(t_stencil_1d), intent(in)	stencil,
		integer, intent(in)	nx,
		double precision, dimension(:), intent(in)	dx,
		integer, intent(in)	shift,
		class(t_int_grid_preweights), dimension(:), intent(inout)	preweights )

Compute the weights associated to the scheme at each cell in [1:nx].

Warning

as we cannot access to values outside [1:nx], the weights are in fact computed in the computable stencil around the cell.