1: #pragma once 3: #include <../src/vec/is/sf/impls/basic/allgatherv/sfallgatherv.h> 5: PETSC_INTERN PetscErrorCode PetscSFFetchAndOpBegin_Gatherv(PetscSF, MPI_Datatype, PetscMemType, void *, PetscMemType, const void *, void *, MPI_Op);