message: Fixed mistake in counting of operator applications
diff: @@ -339,7 +339,7 @@ void MultigridSolver::Cycle(unsigned level) const
  }
  // Compute residual
  - opr->GetOperatorAtLevel(level)->Mult(*Y[level], *R[level]);
  + opr->MultAtLevel(level, *Y[level], *R[level]);
  subtract(*X[level], *R[level], *R[level]);
  // Restrict residual
  