petsc-3.14.6 2021-03-30
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MatGetDM

 Gets the DM defining the data layout of the matrix

Synopsis

#include "petscdm.h"          
#include "petscdmlabel.h"     
#include "petscds.h"     
PetscErrorCode MatGetDM(Mat A, DM *dm)
Not collective

Input Parameter

A - The Mat

Output Parameter

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

See Also

MatSetDM(), DMCreateMatrix(), DMSetMatType()

Level

intermediate

Location

src/dm/interface/dm.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages