SNESNewtonTRGetUpdateParameters#

Gets the trust region update parameters.

Synopsis#

#include "petscsnes.h"   
PetscErrorCode SNESNewtonTRGetUpdateParameters(SNES snes, PetscReal *eta1, PetscReal *eta2, PetscReal *eta3, PetscReal *t1, PetscReal *t2)

Not Collective

Input Parameter#

  • snes - the SNES context

Output Parameters#

  • eta1 - acceptance tolerance

  • eta2 - shrinking tolerance

  • eta3 - enlarging tolerance

  • t1 - shrink factor

  • t2 - enlarge factor

See Also#

SNES: Nonlinear Solvers, SNES, SNESNEWTONTR, SNESNewtonTRSetUpdateParameters()

Level#

intermediate

Location#

src/snes/impls/tr/tr.c


Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages