1180   Mat          Gmat2, Gmat1 = *a_Gmat1; /* aggressive graph */  in PCGAMGCoarsen_AGG()  local
1191   PetscCall(PetscObjectGetComm((PetscObject)Gmat1, &comm));  in PCGAMGCoarsen_AGG()
1193   PetscCall(MatGetLocalSize(Gmat1, &nn, NULL));  in PCGAMGCoarsen_AGG()
1194   PetscCall(MatGetBlockSize(Gmat1, &bs));  in PCGAMGCoarsen_AGG()
1202   PetscCall(MatGetOwnershipRange(Gmat1, &Istart, &Iend));  in PCGAMGCoarsen_AGG()
1206     PetscCall(MatGetRow(Gmat1, Istart + Ii, &nc, NULL, NULL));  in PCGAMGCoarsen_AGG()
1208     PetscCall(MatRestoreRow(Gmat1, Istart + Ii, &nc, NULL, NULL));  in PCGAMGCoarsen_AGG()
1231 …& pc_gamg_agg->use_aggressive_square_graph) PetscCall(PCGAMGSquareGraph_GAMG(a_pc, Gmat1, &Gmat2));  in PCGAMGCoarsen_AGG()
1232   else Gmat2 = Gmat1;  in PCGAMGCoarsen_AGG()
1254   if (Gmat2 != Gmat1) { // square graph, we need ghosts for selected  in PCGAMGCoarsen_AGG()
1257     PetscCall(fixAggregatesWithSquare(a_pc, Gmat2, Gmat1, *agg_lists));  in PCGAMGCoarsen_AGG()
1258     PetscCall(MatDestroy(&Gmat1));  in PCGAMGCoarsen_AGG()