amg_mkb/lsd_amg/lss_ns_supg_ext_intf.cpp File Reference

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "lsh_ns_supg_ext_intf.h"

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Functions
int	lsr_ns_supg_ext_init (int Solver_id, int Parallel, int *Max_num_levels_p, char *Filename, int Max_iter, int Error_type, double Error_tolerance, int Monitoring_level)
int	lsr_ns_supg_ext_create_matrix (int Solver_id, int Level_id, int Nrblocks, int Nrdof_glob, int Max_sm_size, int *Nrdofbl, int *Posglob, int *Nroffbl, int **L_offbl)
int	lsr_ns_supg_ext_create_precon (int Solver_id, int Level_id)
int	lsr_ns_supg_ext_clear_matrix (int Solver_id, int Level_id, int Comp_type)
int	lsr_ns_supg_ext_assemble_local_sm (int Solver_id, int Level_id, int Comp_type, int Nr_dof_bl, int *L_bl_id, int *L_bl_nrdof, double *Stiff_mat, double *Rhs_vect, char *Rewr_dofs)
int	lsr_ns_supg_ext_show_matrix (int Solver_id, int Level_id)
int	lsr_ns_supg_ext_fill_precon (int Solver_id, int Level_id)
int	lsr_ns_supg_ext_solve (int Solver_id, int Ndof, int Ini_zero, double *X, double *B, int *Nr_iter, double *Toler, int Monitor, double *Conv_rate)
int	lsr_ns_supg_ext_free_matrix (int Solver_id)
void	lsr_ns_supg_ext_compreres (int Solver_id, int Subsystem_id, int Level_id, int Control, int Ini_zero, int Ndof, double *X, double *B, double *V)
double	lsr_ns_supg_ext_compres (int Solver_id, double *X, int Ndof)
void	lsr_ns_supg_ext_compres_vector (int Solver_id, int Ndof, double *X, double *B, double *V)

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Function Documentation

int lsr_ns_supg_ext_assemble_local_sm	(	int	Solver_id,
		int	Level_id,
		int	Comp_type,
		int	Nr_dof_bl,
		int *	L_bl_id,
		int *	L_bl_nrdof,
		double *	Stiff_mat,
		double *	Rhs_vect,
		char *	Rewr_dofs
	)

----------------------------------------------------------- lsr_ns_supg_ext_assemble_local_sm - to assemble entries to the global stiffness matrix and the global load vector using the provided local stiffness matrix and load vector ------------------------------------------------------------

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int lsr_ns_supg_ext_clear_matrix	(	int	Solver_id,
		int	Level_id,
		int	Comp_type
	)

-------------------------------------------------------- lsr_ns_supg_ext_clear_matrix - to initialize block structure of system matrix ---------------------------------------------------------

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void lsr_ns_supg_ext_compreres	(	int	Solver_id,
		int	Subsystem_id,
		int	Level_id,
		int	Control,
		int	Ini_zero,
		int	Ndof,
		double *	X,
		double *	B,
		double *	V
	)

-------------------------------------------------------- lsr_ns_supg_ext_compreres - to compute the residual of the left preconditioned system of equations, v = M^-1 * ( b - Ax ) ( used also to compute the product v = M^-1 * Ax) ---------------------------------------------------------

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double lsr_ns_supg_ext_compres	(	int	Solver_id,
		double *	X,
		int	Ndof
	)

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void lsr_ns_supg_ext_compres_vector	(	int	Solver_id,
		int	Ndof,
		double *	X,
		double *	B,
		double *	V
	)

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int lsr_ns_supg_ext_create_matrix	(	int	Solver_id,
		int	Level_id,
		int	Nrblocks,
		int	Nrdof_glob,
		int	Max_sm_size,
		int *	Nrdofbl,
		int *	Posglob,
		int *	Nroffbl,
		int **	L_offbl
	)

-------------------------------------------------------- lsr_ns_supg_ext_create_matrix - to allocate space for a global system matrix ---------------------------------------------------------

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int lsr_ns_supg_ext_create_precon	(	int	Solver_id,
		int	Level_id
	)

-------------------------------------------------------- lsr_ns_supg_ext_create_precon - to create preconditioner blocks corresponding to small subdomains of neighboring elements ---------------------------------------------------------

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int lsr_ns_supg_ext_fill_precon	(	int	Solver_id,
		int	Level_id
	)

-------------------------------------------------------- lsr_ns_supg_ext_fill_precon - to prepare preconditioner by factorizing the stiffness matrix, either only diagonal blocks or block ILU(0) ---------------------------------------------------------

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int lsr_ns_supg_ext_free_matrix

(

int

Solver_id

)

-------------------------------------------------------- lsr_ns_supg_ext_free_matrix - to free space for solver data structure (system matrix, preconditioner and possibly other) ---------------------------------------------------------

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int lsr_ns_supg_ext_init	(	int	Solver_id,
		int	Parallel,
		int *	Max_num_levels_p,
		char *	Filename,
		int	Max_iter,
		int	Error_type,
		double	Error_tolerance,
		int	Monitoring_level
	)

----------------------------------------------------------- lsr_ns_supg_ext_init - to create a new solver instance, read its control parameters and initialize its data structure ------------------------------------------------------------

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int lsr_ns_supg_ext_show_matrix	(	int	Solver_id,
		int	Level_id
	)

-------------------------------------------------------- lsr_ns_supg_ext_show_matrix - to show matrix structure using graphic library ---------------------------------------------------------

int lsr_ns_supg_ext_solve	(	int	Solver_id,
		int	Ndof,
		int	Ini_zero,
		double *	X,
		double *	B,
		int *	Nr_iter,
		double *	Toler,
		int	Monitor,
		double *	Conv_rate
	)

-------------------------------------------------------- lsr_ns_supg_ext_solve - to solve a system of equations, given previously constructed system matrix, preconditioner ---------------------------------------------------------