PETSc version 3.17.0
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# PetscSFRegister

Adds an implementation of the PetscSF communication protocol.

### Synopsis

    #include "petscsf.h"
    PetscErrorCode  PetscSFRegister(const char name[],PetscErrorCode (*create)(PetscSF))

Not collective

### Input Parameters

| name | - name of a new user-defined implementation
| create | - routine to create method context

### Notes

PetscSFRegister() may be called multiple times to add several user-defined implementations.

### Sample usage

       PetscSFRegister("my_impl",MyImplCreate);

Then, this implementation can be chosen with the procedural interface via

        PetscSFSetType(sf,"my_impl")

or at runtime via the option

        -sf_type my_impl

### See Also

PetscSFRegisterAll(), PetscSFInitializePackage()

### Level

advanced

### Location

src/vec/is/sf/interface/sfregi.c
Index of all PetscSF routines
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