DMSetMatrixPreallocateOnly#

When DMCreateMatrix() is called the matrix will be properly preallocated but the nonzero structure and zero values will not be set.

Synopsis#

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

Logically Collective

Input Parameters#

Options Database Key#

See Also#

DM Basics, DM, DMCreateMatrix(), DMCreateMassMatrix(), DMSetMatrixStructureOnly(), DMSetMatrixPreallocateSkip()

Level#

developer

Location#

src/dm/interface/dm.c

Examples#

src/ts/tutorials/ex50.c
src/dm/impls/stag/tutorials/ex8.c
src/tao/unconstrained/tutorials/spectraladjointassimilation.c
src/tao/unconstrained/tutorials/burgers_spectral.c


Index of all DM routines
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Index of all manual pages