petsc-3.13.6 2020-09-29

VecScatterRegister

Adds a new vector scatter component implementation

#include "petscvec.h"    
PetscErrorCode VecScatterRegister(const char sname[], PetscErrorCode (*function)(VecScatter))

Not Collective

	name	- The name of a new user-defined creation routine
	create_func	- The creation routine itself

VecScatterRegister() may be called multiple times to add several user-defined vectors

    VecScatterRegister("my_vecscatter",MyVecScatterCreate);

Then, your vector scatter type can be chosen with the procedural interface via

    VecScatterCreate(MPI_Comm, VecScatter *);
    VecScatterSetType(VecScatter,"my_vectorscatter_name");

or at runtime via the option

    -vecscatter_type my_vectorscatter_name

advanced