KSPConvergedReasonViewSet#

Sets an ADDITIONAL function that is to be used at the end of the linear solver to display the convergence reason of the linear solver.

Synopsis#

#include "petscksp.h" 
#include "petscmat.h" 
PetscErrorCode KSPConvergedReasonViewSet(KSP ksp, PetscErrorCode (*f)(KSP, void *), void *vctx, PetscErrorCode (*reasonviewdestroy)(void **))

Logically Collective

Input Parameters#

ksp - the KSP context
f - the ksp converged reason view function
vctx - [optional] user-defined context for private data for the ksp converged reason view routine (use NULL if no context is desired)
reasonviewdestroy - [optional] routine that frees reasonview context (may be NULL)

Options Database Keys#

-ksp_converged_reason - sets a default KSPConvergedReasonView()
-ksp_converged_reason_view_cancel - cancels all converged reason viewers that have been hardwired into a code by calls to KSPConvergedReasonViewSet(), but does not cancel those set via the options database.

Notes#

Several different converged reason view routines may be set by calling KSPConvergedReasonViewSet() multiple times; all will be called in the order in which they were set.