petsc-3.8.4 2018-03-24
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PetscOptionsGetViewerOff

 does PetscOptionsGetViewer return a viewer?

Synopsis

#include "petscviewer.h" 
PetscErrorCode  PetscOptionsGetViewerOff(PetscBool *flg)
Logically Collective

Output Parameter

flg -whether viewers are returned.

Notes: Calling XXXViewFromOptions in an inner loop can be very expensive. This can appear, for example, when using many small subsolves.

See Also

PetscOptionsGetViewer(), PetscOptionsPushGetViewerOff(), PetscOptionsPopGetViewerOff()

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