HLIBpro  1.2
Public Member Functions | List of all members
TCG Class Reference

Implements conjugate gradient iteration.

#include <TCG.hh>

Inheritance diagram for TCG:
TSolver

Public Member Functions

 TCG (const uint max_iter=100, const real abs_res_red=real(1e-8), const real rel_res_red=real(1e-8), const real rel_res_growth=real(1e6))
 construct CG solver object with corresponding stop criteria
virtual void solve (const TMatrix *A, TVector *x, const TVector *b, const TMatrix *W=NULL, TInfo *data=NULL) const
 solve A·x = b with optional preconditioner W
- Public Member Functions inherited from TSolver
 TSolver (const uint max_iter=100, const real abs_res_red=real(1e-8), const real rel_res_red=real(1e-8), const real rel_res_growth=real(1e6))
 construct Richardson solver object with corresponding stop criteria
virtual ~TSolver ()
 dtor
virtual bool stop (const uint it, const real norm, const real norm0, TInfo *info) const
 return true if stop condition is met
virtual void set_stop_crit (const uint max_iter=100, const real abs_res_red=real(1e-8), const real rel_res_red=real(1e-8), const real rel_res_growth=real(1e6))
 set stop criterion

Additional Inherited Members

- Protected Attributes inherited from TSolver
uint _max_iter
 maximal number of iterations
real _abs_res_reduct
 absolute reduction of residual norm
real _rel_res_reduct
 relative reduction of residual norm compared to start residual
real _rel_res_growth
 maximal relative growth of residual norm compared to start residual