petsc-dev 2014-08-28
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TaoSetMonitor

Sets an ADDITIONAL function that is to be used at every iteration of the solver to display the iteration's progress.

Synopsis

#include "petsctao.h" 
PetscErrorCode TaoSetMonitor(Tao tao, PetscErrorCode (*func)(Tao, void*), void *ctx,PetscErrorCode (*dest)(void**))
Logically Collective on Tao

Input Parameters

tao - the Tao solver context
mymonitor - monitoring routine
mctx - [optional] user-defined context for private data for the monitor routine (may be NULL)

Calling sequence of mymonitor

    int mymonitor(Tao tao,void *mctx)

tao - the Tao solver context
mctx - [optional] monitoring context

Options Database Keys

-tao_monitor - sets TaoDefaultMonitor()
-tao_smonitor - sets short monitor
-tao_cmonitor - same as smonitor plus constraint norm
-tao_view_solution - view solution at each iteration
-tao_view_gradient - view gradient at each iteration
-tao_view_separableobjective - view separable objective function at each iteration
-tao_cancelmonitors - cancels all monitors that have been hardwired into a code by calls to TaoSetMonitor(), but does not cancel those set via the options database.

Notes

Several different monitoring routines may be set by calling TaoSetMonitor() multiple times; all will be called in the order in which they were set.

Fortran Notes: Only one monitor function may be set

See Also

TaoDefaultMonitor(), TaoCancelMonitors(), TaoSetDestroyRoutine()

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/minsurf2.c.html
src/tao/unconstrained/examples/tutorials/eptorsion2f.F.html
src/tao/bound/examples/tutorials/jbearing2.c.html
src/tao/leastsquares/examples/tutorials/chwirut2.c.html
src/tao/leastsquares/examples/tutorials/chwirut1f.F.html