MatSetDM#

Sets the DM defining the data layout of the matrix

Synopsis#

#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode MatSetDM(Mat A, DM dm)

Not Collective

Input Parameters#

  • A - The Mat

  • dm - The DM

Note#

This is rarely used in practice, rather DMCreateMatrix() is used to create a matrix associated with a particular DM

Developer Notes#

Since the Mat class doesn’t know about the DM class the DM object is associated with the Mat through a PetscObjectCompose() operation

See Also#

DM Basics, DM, MatGetDM(), DMCreateMatrix(), DMSetMatType()

Level#

developer

Location#

src/dm/interface/dm.c

Examples#

src/ksp/ksp/tutorials/ex34.c
src/snes/tutorials/ex22.c
src/snes/tutorials/ex35.c
src/ksp/ksp/tutorials/ex29.c

Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages