TaoSetConstraintTolerances

Sets constraint tolerance parameters used in TaoSolve() convergence tests

Synopsis

#include "petsctao.h" 
PetscErrorCode TaoSetConstraintTolerances(Tao tao, PetscReal catol, PetscReal crtol)

Logically Collective

Input Parameters

• tao - the Tao context

• catol - absolute constraint tolerance, constraint norm must be less than catol for used for gatol convergence criteria

• crtol - relative constraint tolerance, constraint norm must be less than crtol for used for gatol, gttol convergence criteria

Options Database Keys

• -tao_catol - Sets catol

• -tao_crtol - Sets crtol

Notes

Use PETSC_CURRENT to leave one or tolerance unchanged.

Use PETSC_DETERMINE to set one or more tolerances to their values when the tao object’s type was set

Fortran Note

Use PETSC_CURRENT_REAL or PETSC_DETERMINE_REAL

See Also

TAO: Optimization Solvers, Tao, TaoConvergedReason, TaoGetTolerances(), TaoGetConstraintTolerances(), TaoSetTolerances()

Level

intermediate

Location

src/tao/interface/taosolver.c

Examples

src/tao/constrained/tutorials/ex1.c

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Index of all manual pages