PetscOptionsPopGetViewerOff#
reset whether PetscOptionsGetViewer() returns a viewer.
Synopsis#
#include "petscviewer.h"
PetscErrorCode PetscOptionsPopGetViewerOff(void)
Logically Collective
Note#
Calling XXXViewFromOptions in an inner loop can be very expensive. This can appear, for example, when using
many small subsolves. Call this function to control viewer creation in PetscOptionsGetViewer(), thus removing the expensive XXXViewFromOptions calls.
See Also#
Viewers: Looking at PETSc Objects, PetscOptionsGetViewer(), PetscOptionsPushGetViewerOff()
Level#
developer
Location#
src/sys/classes/viewer/interface/viewreg.c
Index of all Viewer routines
Table of Contents for all manual pages
Index of all manual pages