padded_grid_p1() { std::fill(n_logical_.begin(), n_logical_.end(), value_type(0)); std::fill(n_physical_.begin(), n_physical_.end(), value_type(0)); }
padded_grid_p1(const IndexType& n_logical, const IndexType& n_physical) : n_logical_(n_logical), n_physical_(n_physical) {}
      padded_grid_p1()      {        std::fill(n_logical_.begin(), n_logical_.end(), value_type(0));        std::fill(n_physical_.begin(), n_physical_.end(), value_type(0));      }