PETSc version 3.17.5

MatSetDM

Sets the DM defining the data layout of the matrix

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

Not collective

	A	- The Mat
	dm	- The DM

Developer Note: Since the Mat class doesn't know about the DM class the DM object is associated with the Mat through a PetscObjectCompose() operation

intermediate