PETSc version 3.17.0
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# DMGetSectionSF

Get the PetscSF encoding the parallel dof overlap for the DM. If it has not been set, it is created from the default PetscSection layouts in the DM.

### Synopsis

    #include "petscdm.h"
    #include "petscdmlabel.h"
    #include "petscds.h"
    PetscErrorCode DMGetSectionSF(DM dm, PetscSF *sf)

### Input Parameter

| dm | - The DM

### Output Parameter

| sf | - The PetscSF

Note: This gets a borrowed reference, so the user should not destroy this PetscSF.

### See Also

DMSetSectionSF(), DMCreateSectionSF()

### Level

intermediate

### Location

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