500 PetscErrorCode PCGAMGSquareGraph_GAMG(PC a_pc, Mat Gmat1, Mat *Gmat2)  in PCGAMGSquareGraph_GAMG()  argument
510   PetscCall(MatProductCreate(Gmat1, Gmat1, NULL, Gmat2));  in PCGAMGSquareGraph_GAMG()
511   PetscCall(MatSetOptionsPrefix(*Gmat2, prefix));  in PCGAMGSquareGraph_GAMG()
513   PetscCall(MatAppendOptionsPrefix(*Gmat2, addp));  in PCGAMGSquareGraph_GAMG()
514   if ((*Gmat2)->structurally_symmetric == PETSC_BOOL3_TRUE) {  in PCGAMGSquareGraph_GAMG()
515     PetscCall(MatProductSetType(*Gmat2, MATPRODUCT_AB));  in PCGAMGSquareGraph_GAMG()
518     PetscCall(MatProductSetType(*Gmat2, MATPRODUCT_AtB));  in PCGAMGSquareGraph_GAMG()
520   PetscCall(MatProductSetFromOptions(*Gmat2));  in PCGAMGSquareGraph_GAMG()
522   PetscCall(MatProductSymbolic(*Gmat2));  in PCGAMGSquareGraph_GAMG()
524   PetscCall(MatProductClear(*Gmat2));  in PCGAMGSquareGraph_GAMG()
526   (*Gmat2)->assembled = PETSC_TRUE;  in PCGAMGSquareGraph_GAMG()