PetscOptionsLeft#

Prints to screen any options that were set and never used.

Synopsis#

#include "petscsys.h"   
PetscErrorCode PetscOptionsLeft(PetscOptions options)

Not Collective

Input Parameter#

options - options database; use NULL for default global database

Options Database Key#

-options_left - activates PetscOptionsAllUsed() within PetscFinalize()

Notes#

This is rarely used directly, it is called by PetscFinalize() in debug more or if -options_left is passed otherwise to help users determine possible mistakes in their usage of options. This only prints values on process zero of PETSC_COMM_WORLD.

Other processes depending the objects used may have different options that are left unused.

Level#

advanced

Location#

src/sys/objects/options.c

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