TaoMonitor#

Monitor the solver and the current solution. This routine will record the iteration number and residual statistics, and call any monitors specified by the user.

Synopsis#

#include "petsctao.h" 
PetscErrorCode TaoMonitor(Tao tao, PetscInt its, PetscReal f, PetscReal res, PetscReal cnorm, PetscReal steplength)

Input Parameters#

  • tao - the Tao context

  • its - the current iterate number (>=0)

  • f - the current objective function value

  • res - the gradient norm, square root of the duality gap, or other measure indicating distince from optimality. This measure will be recorded and used for some termination tests.

  • cnorm - the infeasibility of the current solution with regard to the constraints.

  • steplength - multiple of the step direction added to the previous iterate.

Options Database Key#

  • -tao_monitor - Use the default monitor, which prints statistics to standard output

See Also#

TAO: Optimization Solvers, Tao, TaoGetConvergedReason(), TaoMonitorDefault(), TaoSetMonitor()

Level#

developer

Location#

src/tao/interface/taosolver.c

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