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]. More...
double precision function	t_int_fast_scheme_o4_centered_apply_fast (self, values, preweights)
	Apply the corresponding scheme. More...

Variables
type(t_int_fast_scheme_o4_centered), target	int_fast_scheme_o4_centered

Detailed Description

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
	)

Parameters

[in]

values

The discrete (mean) values of the function

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
	)

Warning

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