PetscOptionsRestoreViewer#

restore a PetscViewer obtained from PetscOptionsGetViewer() or PetscOptionsGetViewers()

Synopsis#

#include "petscviewer.h" 
PetscErrorCode PetscOptionsRestoreViewer(PetscViewer *viewer)

Collective

Input Parameter#

  • viewer - the viewer

Developer Note#

This function exists to handle persistent viewers such as PETSC_VIEWER_STDOUT_SELF that may be shared between threads where changing the reference count would not be thread safe.

See Also#

Viewers: Looking at PETSc Objects, PetscOptionsGetViewer(), PetscOptionsGetReal(), PetscOptionsHasName(), PetscOptionsGetString(), PetscOptionsGetIntArray(), PetscOptionsGetRealArray(), PetscOptionsBool() PetscOptionsInt(), PetscOptionsString(), PetscOptionsReal(), PetscOptionsName(), PetscOptionsBegin(), PetscOptionsEnd(), PetscOptionsHeadBegin(), PetscOptionsStringArray(), PetscOptionsRealArray(), PetscOptionsScalar(), PetscOptionsBoolGroupBegin(), PetscOptionsBoolGroup(), PetscOptionsBoolGroupEnd(), PetscOptionsFList(), PetscOptionsEList(), PetscOptionsPushGetViewerOff(), PetscOptionsPopGetViewerOff(), PetscOptionsGetViewerOff()

Level#

intermediate

Location#

src/sys/classes/viewer/interface/viewreg.c

Examples#

src/sys/classes/viewer/tutorials/ex2.c
src/vec/vec/utils/tagger/tutorials/ex1.c
src/snes/tutorials/ex36.c
src/snes/tutorials/ex17.c
src/ts/tutorials/ex53.c
src/snes/tutorials/ex62.c
src/snes/tutorials/ex56.c


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