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 on dm

Input Parameters#

Options Database Keys#

See Also#

DMCreateMatrix(), DMCreateMassMatrix(), DMSetMatrixStructureOnly(), DMSetMatrixPreallocateSkip()

Level#

developer

Location#

src/dm/interface/dm.c

Examples#

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


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