Laplacian second order approximation CENTRAL Scheme (with central derivative in the single) More...

Detailed Description

template<typename arg, typename Sys_eqs>
class Lap< arg, Sys_eqs, CENTRAL_SYM >

Laplacian second order approximation CENTRAL Scheme (with central derivative in the single)

         1.0
          *
          | -4.0
  1.0 *---+---* 1.0
          |
          *
         1.0

*

Definition at line 133 of file Laplacian.hpp.

Static Public Member Functions
static void	value (const typename stub_or_real< Sys_eqs, Sys_eqs::dims, typename Sys_eqs::stype, typename Sys_eqs::b_grid::decomposition::extended_type >::type &g_map, grid_dist_key_dx< Sys_eqs::dims > &kmap, const grid_sm< Sys_eqs::dims, void > &gs, typename Sys_eqs::stype(&spacing)[Sys_eqs::dims], std::unordered_map< long int, typename Sys_eqs::stype > &cols, typename Sys_eqs::stype coeff)
	Calculate which colums of the Matrix are non zero.

Member Function Documentation

template<typename arg , typename Sys_eqs >

static void Lap< arg, Sys_eqs, CENTRAL_SYM >::value	(	const typename stub_or_real< Sys_eqs, Sys_eqs::dims, typename Sys_eqs::stype, typename Sys_eqs::b_grid::decomposition::extended_type >::type &	g_map,
		grid_dist_key_dx< Sys_eqs::dims > &	kmap,
		const grid_sm< Sys_eqs::dims, void > &	gs,
		typename Sys_eqs::stype(&)	spacing[Sys_eqs::dims],
		std::unordered_map< long int, typename Sys_eqs::stype > &	cols,
		typename Sys_eqs::stype	coeff
	)

inlinestatic

Calculate which colums of the Matrix are non zero.

stub_or_real it is just for change the argument type when testing, in normal conditions it is a distributed map

Parameters

g_map	map grid
kmap	position in the grid
spacing	of the grid
gs	Grid info
cols	non-zero colums calculated by the function
coeff	coefficent (constant in front of the derivative)

Definition at line 155 of file Laplacian.hpp.

The documentation for this class was generated from the following file: