PCViewFromOptions

View (print or provide information about) the PC, based on options in the options database

Synopsis

#include "petscksp.h" 
PetscErrorCode PCViewFromOptions(PC A, PetscObject obj, const char name[])

Collective

Input Parameters

• A - the PC context

• obj - optional object that provides the options prefix, pass NULL to use the options prefix of A

• name - command line option name

Options Database Key

• -name viewer_specification - See PetscOptionsCreateViewer() for the values of viewer_specification

Note

This checks the options database, creates the viewer on-the-fly, uses it and then destroys it. Hence it should not be called in heavily used routines, rather PetscOptionsCreateViewer() should be used to construct the viewer once which can then be utilized in the heavily used routine.

See Also

KSP: Linear System Solvers, PC, PCView(), PetscObjectViewFromOptions(), PCCreate(), PetscOptionsCreateViewer()

Level

developer

Location

src/ksp/pc/interface/precon.c

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