728       Mat               Prol11;  in PCSetUp_GAMG()  local
734       PetscCall(pc_gamg->ops->prolongator(pc, Aarr[level], agg_lists, &Prol11));  in PCSetUp_GAMG()
736       if (Prol11) {  in PCSetUp_GAMG()
741         PetscCall(MatGetBlockSizes(Prol11, NULL, &cr_bs)); // column size  in PCSetUp_GAMG()
745           PetscCall(pc_gamg->ops->optprolongator(pc, Aarr[level], &Prol11));  in PCSetUp_GAMG()
750           PetscCall(MatGetBlockSizes(Prol11, &bs, NULL)); // row block size  in PCSetUp_GAMG()
781         PetscCall(MatSetOptionsPrefix(Prol11, prefix));  in PCSetUp_GAMG()
783         PetscCall(MatAppendOptionsPrefix(Prol11, addp));  in PCSetUp_GAMG()
786         PetscCall(MatSetOption(Prol11, MAT_FORM_EXPLICIT_TRANSPOSE, PETSC_TRUE));  in PCSetUp_GAMG()
787         PetscCall(MatSetFromOptions(Prol11));  in PCSetUp_GAMG()
788         Parr[level1] = Prol11;  in PCSetUp_GAMG()