DMSetMatrixStructureOnly#

When DMCreateMatrix() is called, the matrix structure will be created but the array for numerical values will not be allocated.

Synopsis#

#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode DMSetMatrixStructureOnly(DM dm, PetscBool only)

Logically Collective

Input Parameters#

  • dm - the DM

  • only - PETSC_TRUE if you only want matrix structure

See Also#

DM Basics, DM, DMCreateMatrix(), DMSetMatrixPreallocateOnly(), DMSetMatrixPreallocateSkip()

Level#

developer

Location#

src/dm/interface/dm.c

Index of all DM routines
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Index of all manual pages