petsc-master 2014-12-17
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TaoGetTolerances

gets the current values of tolerances

Synopsis

#include "petsctao.h" 
PetscErrorCode TaoGetTolerances(Tao tao, PetscReal *fatol, PetscReal *frtol, PetscReal *gatol, PetscReal *grtol, PetscReal *gttol)
Not Collective

Input Parameters

tao -the Tao context

Output Parameters

fatol - absolute convergence tolerance
frtol - relative convergence tolerance
gatol - stop if norm of gradient is less than this
grtol - stop if relative norm of gradient is less than this
gttol - stop if norm of gradient is reduced by a this factor

Note: NULL can be used as an argument if not all tolerances values are needed

See Also

TaoSetTolerances()

Level:intermediate
Location:
src/tao/interface/taosolver.c
Index of all Tao routines
Table of Contents for all manual pages
Index of all manual pages