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

tao - the Tao solver context
func - monitoring routine
ctx - [optional] user-defined context for private data for the monitor routine (may be NULL)
dest - [optional] function to destroy the context when the Tao is destroyed

-tao_monitor - sets the default monitor TaoMonitorDefault()
-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_ls_residual - view least-squares residual vector 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.

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

Only one monitor function may be set

intermediate