HLIBpro
2.4
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Implements conjugate gradient iteration.
#include <TCG.hh>
Inherits 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 | |
TCG (const TStopCriterion &stop_crit) | |
construct CG solver object with corresponding stop criteria | |
virtual void | solve (const TLinearOperator *A, TVector *x, const TVector *b, const TLinearOperator *W=nullptr, TInfo *data=nullptr) const |
solve A·x = b with optional preconditioner W | |