PetscHasExternalPackage#

Determine whether PETSc has been configured with the given package

Synopsis#

#include "petscsys.h"   
PetscErrorCode PetscHasExternalPackage(const char pkg[], PetscBool *has)

Not Collective

Input Parameter#

pkg - external package name

Output Parameter#

has - PETSC_TRUE if PETSc is configured with the given package, else PETSC_FALSE.

Notes#

This is basically an alternative for PETSC_HAVE_XXX whenever a preprocessor macro is not available/desirable, e.g. in Python.

The external package name pkg is e.g. “hdf5”, “yaml”, “parmetis”. It should correspond to the name listed in ./configure --help or e.g. in PetscViewerType, MatPartitioningType, MatSolverType.

The lookup is case insensitive, i.e. looking for “HDF5” or “hdf5” is the same.

Level#

intermediate

Location#

src/sys/objects/package.c

Examples#

src/tao/constrained/tutorials/ex1.c

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