petsc-dev 2014-07-25
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TaoGetSolutionStatus

Get the current iterate, objective value, residual, infeasibility, and termination

Synopsis

#include "petsctao.h" 
PetscErrorCode TaoGetSolutionStatus(Tao tao, PetscInt *its, PetscReal *f, PetscReal *gnorm, PetscReal *cnorm, PetscReal *xdiff, TaoConvergedReason *reason)
Not Collective

Input Parameters

tao -the Tao context

Output Parameters

iterate - the current iterate number (>=0)
f - the current function value
gnorm - the square of the gradient norm, duality gap, or other measure indicating distance from optimality.
cnorm - the infeasibility of the current solution with regard to the constraints.
xdiff - the step length or trust region radius of the most recent iterate.
reason - The termination reason, which can equal TAO_CONTINUE_ITERATING

Note

TAO returns the values set by the solvers in the routine TaoMonitor().

Note

If any of the output arguments are set to NULL, no corresponding value will be returned.

See Also

TaoMonitor(), TaoGetConvergedReason()

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

Examples

src/tao/unconstrained/examples/tutorials/eptorsion2f.F.html
src/tao/bound/examples/tutorials/jbearing2.c.html
src/tao/leastsquares/examples/tutorials/chwirut2.c.html