KSPViewFromOptions

View (print) a KSP object based on values in the options database. Also views the PC and Mat contained by the KSP with PCView() and MatView().

Synopsis

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

Collective

Input Parameters

• A - Krylov solver context

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

• name - command line option

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, KSP, KSPView(), PetscObjectViewFromOptions(), KSPCreate(), PetscOptionsCreateViewer()

Level

intermediate

Location

src/ksp/ksp/interface/itcreate.c

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Index of all KSP routines
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Index of all manual pages