mirml_mh_iter_t_ Struct Reference

Basic structure for iterative methods. More...

#include <mirml_meschach.h>

Data Fields
int	shared_x
	if TRUE then x is shared and it will not be free'd
int	shared_b
	if TRUE then b is shared and it will not be free'd
unsigned int	k
	no. of direction (search) vectors; =0 - none
int	limit
	upper bound on the no. of iter. steps
int	steps
	no. of iter. steps done
double	eps
	accuracy required
mirml_mh_vector_t *	x
	input: initial guess; output: approximate solution
mirml_mh_vector_t *	b
	right hand side of the equation A*x = b
mirml_mh_Fun_Ax	Ax
	function computing y = A*x
void *	A_par
	parameters for Ax
mirml_mh_Fun_Ax	ATx
	function computing y = A^T*x; T = transpose
void *	AT_par
	parameters for ATx
mirml_mh_Fun_Ax	Bx
	function computing y = B*x; B - preconditioner
void *	B_par
	parameters for Bx
mirml_mh_Fun_Ax	BTx
	function computing y = B^T*x; B - preconditioner
void *	BT_par
	parameters for BTx
void(*	info )(struct mirml_mh_iter_t_ *ip, double nres, mirml_mh_vector_t *res, mirml_mh_vector_t *Bres)
	function giving some information for a user.
int(*	stop_crit )(struct mirml_mh_iter_t_ *ip, double nres, mirml_mh_vector_t *res, mirml_mh_vector_t *Bres)
	stopping criterion
double	init_res
	the norm of the initial residual

Detailed Description

Basic structure for iterative methods.

Field Documentation

info

void(* mirml_mh_iter_t_::info) (struct mirml_mh_iter_t_ *ip, double nres, mirml_mh_vector_t *res, mirml_mh_vector_t *Bres)

function giving some information for a user.

nres - a norm of a residual res.

stop_crit

int(* mirml_mh_iter_t_::stop_crit) (struct mirml_mh_iter_t_ *ip, double nres, mirml_mh_vector_t *res, mirml_mh_vector_t *Bres)

stopping criterion

nres - a norm of res; res - residual; if returned value == 1 then stop; if returned value == 0 then continue.

---

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

• mirml_meschach.h