1 #pragma once 2 3 #include <petsc/private/pcgamgimpl.h> 4 #include <../src/mat/impls/aij/seq/aij.h> 5 #include <../src/mat/impls/aij/mpi/mpiaij.h> 6 7 PETSC_INTERN PetscErrorCode PCGAMGSquareGraph_GAMG(PC, Mat, Mat *); 8