}
#ifdef CCTK_HAVE_CGH_TILE
  for (int d = 0; d < dim; ++d) {
    tmin[d] = cctkGH->cctk_tile_min[d];
    tmax[d] = cctkGH->cctk_tile_max[d];
  }
#else
  const CarpetX::TileBox &restrict tilebox =
      CarpetX::thread_local_info.at(thread_num)->tilebox;
  for (int d = 0; d < dim; ++d) {
    tmin[d] = tilebox.tile_min[d];
    tmax[d] = tilebox.tile_max[d];

#endif

  const CarpetX::TileBox &restrict tilebox =
      CarpetX::thread_local_info.at(thread_num)->tilebox;

    tmin[d] = tilebox.tile_min[d];
    tmax[d] = tilebox.tile_max[d];
  }
  for (int d = 0; d < dim; ++d) {

  cctkGH->cctk_tile_min = new int[dim];
  cctkGH->cctk_tile_max = new int[dim];

  for (int d = 0; d < dim; ++d) {
    cctkGH->cctk_tile_min[d] = grid.tmin[d];
    cctkGH->cctk_tile_max[d] = grid.tmax[d];
  }

    // Tile box
    assert(cctkGH->cctk_tile_min[d] >= 0);
    assert(cctkGH->cctk_tile_min[d] <= cctkGH->cctk_tile_max[d]);
    assert(cctkGH->cctk_tile_max[d] <= cctkGH->cctk_lsh[d]);

  }
  for (int d = 0; d < dim; ++d) {
    cctkGH->cctk_tile_min[d] = undefined;
    cctkGH->cctk_tile_max[d] = undefined;