petsc-3.11.2 2019-05-18
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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