Beispiel #1
0
p4est_t            *
p4est_new_points (sc_MPI_Comm mpicomm, p4est_connectivity_t * connectivity,
                  int maxlevel, p4est_quadrant_t * points,
                  p4est_locidx_t num_points, p4est_locidx_t max_points,
                  size_t data_size, p4est_init_t init_fn, void *user_pointer)
{
  int                 mpiret;
  int                 num_procs, rank;
  int                 i, isizet;
  size_t              lcount;
  size_t             *nmemb;
#ifdef P4EST_ENABLE_DEBUG
  size_t              zz;
#endif
  p4est_topidx_t      jt, num_trees;
  p4est_topidx_t      first_tree, last_tree, next_tree;
  p4est_quadrant_t   *first_quad, *next_quad, *quad;
  p4est_quadrant_t    a, b, c, f, l, n;
  p4est_tree_t       *tree;
  p4est_t            *p4est;
  p4est_points_state_t ppstate;

  P4EST_GLOBAL_PRODUCTIONF ("Into " P4EST_STRING
                            "_new_points with max level %d max points %lld\n",
                            maxlevel, (long long) max_points);
  p4est_log_indent_push ();
  P4EST_ASSERT (p4est_connectivity_is_valid (connectivity));
  P4EST_ASSERT (max_points >= -1);

  /* retrieve MPI information */
  mpiret = sc_MPI_Comm_size (mpicomm, &num_procs);
  SC_CHECK_MPI (mpiret);
  mpiret = sc_MPI_Comm_rank (mpicomm, &rank);
  SC_CHECK_MPI (mpiret);

  /* This implementation runs in O(P/p * maxlevel)
   * with P the total number of points, p the number of processors.
   * Two optimizations are possible:
   * 1. At startup remove points that lead to duplicate quadrants.
   * 2. Use complete_region between successive points instead of
   *    the call to refine. This should give O(N/p) * maxlevel
   *    with N the total number of quadrants.
   */

  /* parallel sort the incoming points */
  lcount = (size_t) num_points;
  nmemb = P4EST_ALLOC_ZERO (size_t, num_procs);
  isizet = (int) sizeof (size_t);
  mpiret = sc_MPI_Allgather (&lcount, isizet, sc_MPI_BYTE,
                             nmemb, isizet, sc_MPI_BYTE, mpicomm);
  SC_CHECK_MPI (mpiret);
  sc_psort (mpicomm, points, nmemb, sizeof (p4est_quadrant_t),
            p4est_quadrant_compare_piggy);
  P4EST_FREE (nmemb);
#ifdef P4EST_ENABLE_DEBUG
  first_quad = points;
  for (zz = 1; zz < lcount; ++zz) {
    next_quad = points + zz;
    P4EST_ASSERT (p4est_quadrant_compare_piggy (first_quad, next_quad) <= 0);
    first_quad = next_quad;
  }
#endif

  /* create the p4est */
  p4est = P4EST_ALLOC_ZERO (p4est_t, 1);
  ppstate.points = points;
  ppstate.num_points = num_points;
  ppstate.max_points = max_points;
  ppstate.current = 0;
  ppstate.maxlevel = maxlevel;

  /* assign some data members */
  p4est->data_size = 2 * sizeof (p4est_locidx_t);       /* temporary */
  p4est->user_pointer = &ppstate;
  p4est->connectivity = connectivity;
  num_trees = connectivity->num_trees;

  /* create parallel environment */
  p4est_comm_parallel_env_create (p4est, mpicomm);

  /* allocate memory pools */
  p4est->user_data_pool = sc_mempool_new (p4est->data_size);
  p4est->quadrant_pool = sc_mempool_new (sizeof (p4est_quadrant_t));

  P4EST_GLOBAL_PRODUCTIONF ("New " P4EST_STRING
                            " with %lld trees on %d processors\n",
                            (long long) num_trees, num_procs);

  /* allocate trees */
  p4est->trees = sc_array_new (sizeof (p4est_tree_t));
  sc_array_resize (p4est->trees, num_trees);
  for (jt = 0; jt < num_trees; ++jt) {
    tree = p4est_tree_array_index (p4est->trees, jt);
    sc_array_init (&tree->quadrants, sizeof (p4est_quadrant_t));
    P4EST_QUADRANT_INIT (&tree->first_desc);
    P4EST_QUADRANT_INIT (&tree->last_desc);
    tree->quadrants_offset = 0;
    for (i = 0; i <= P4EST_QMAXLEVEL; ++i) {
      tree->quadrants_per_level[i] = 0;
    }
    for (; i <= P4EST_MAXLEVEL; ++i) {
      tree->quadrants_per_level[i] = -1;
    }
    tree->maxlevel = 0;
  }
  p4est->local_num_quadrants = 0;
  p4est->global_num_quadrants = 0;

  /* create point based partition */
  P4EST_QUADRANT_INIT (&f);
  p4est->global_first_position =
    P4EST_ALLOC_ZERO (p4est_quadrant_t, num_procs + 1);
  if (num_points == 0) {
    P4EST_VERBOSE ("Empty processor");
    first_tree = p4est->first_local_tree = -1;
    first_quad = NULL;
  }
  else {
    /* we are probably not empty */
    if (rank == 0) {
      first_tree = p4est->first_local_tree = 0;
      p4est_quadrant_set_morton (&f, maxlevel, 0);
    }
    else {
      first_tree = p4est->first_local_tree = points->p.which_tree;
      p4est_node_to_quadrant (points, maxlevel, &f);
    }
    first_quad = &f;
  }
  last_tree = p4est->last_local_tree = -2;
  p4est_comm_global_partition (p4est, first_quad);
  first_quad = p4est->global_first_position + rank;
  next_quad = p4est->global_first_position + (rank + 1);
  next_tree = next_quad->p.which_tree;
  if (first_tree >= 0 &&
      p4est_quadrant_is_equal (first_quad, next_quad) &&
      first_quad->p.which_tree == next_quad->p.which_tree) {
    /* if all our points are consumed by the next processor we are empty */
    first_tree = p4est->first_local_tree = -1;
  }
  if (first_tree >= 0) {
    /* we are definitely not empty */
    if (next_quad->x == 0 && next_quad->y == 0
#ifdef P4_TO_P8
        && next_quad->z == 0
#endif
      ) {
      last_tree = p4est->last_local_tree = next_tree - 1;
    }
    else {
      last_tree = p4est->last_local_tree = next_tree;
    }
    P4EST_ASSERT (first_tree <= last_tree);
  }

  /* fill the local trees */
  P4EST_QUADRANT_INIT (&a);
  P4EST_QUADRANT_INIT (&b);
  P4EST_QUADRANT_INIT (&c);
  P4EST_QUADRANT_INIT (&l);
  n = *next_quad;
  n.level = (int8_t) maxlevel;
  for (jt = first_tree; jt <= last_tree; ++jt) {
    int                 onlyone = 0;
    int                 includeb = 0;

    tree = p4est_tree_array_index (p4est->trees, jt);

    /* determine first local quadrant of this tree */
    if (jt == first_tree) {
      a = *first_quad;
      a.level = (int8_t) maxlevel;
      first_quad = next_quad = NULL;    /* free to use further down */
      P4EST_ASSERT (p4est_quadrant_is_valid (&a));
    }
    else {
      p4est_quadrant_set_morton (&a, maxlevel, 0);
      P4EST_ASSERT (jt < next_tree || p4est_quadrant_compare (&a, &n) < 0);
    }

    /* enlarge first local quadrant if possible */
    if (jt < next_tree) {
      while (p4est_quadrant_child_id (&a) == 0 && a.level > 0) {
        p4est_quadrant_parent (&a, &a);
      }
      P4EST_ASSERT (jt == first_tree || a.level == 0);
    }
    else {
      for (c = a; p4est_quadrant_child_id (&c) == 0; a = c) {
        p4est_quadrant_parent (&c, &c);
        p4est_quadrant_last_descendant (&c, &l, maxlevel);
        if (p4est_quadrant_compare (&l, &n) >= 0) {
          break;
        }
      }
      P4EST_ASSERT (a.level > 0);
      P4EST_ASSERT ((p4est_quadrant_last_descendant (&a, &l, maxlevel),
                     p4est_quadrant_compare (&l, &n) < 0));
    }
    p4est_quadrant_first_descendant (&a, &tree->first_desc, P4EST_QMAXLEVEL);

    /* determine largest possible last quadrant of this tree */
    if (jt < next_tree) {
      p4est_quadrant_last_descendant (&a, &l, maxlevel);
      p4est_quadrant_set_morton (&b, 0, 0);
      p4est_quadrant_last_descendant (&b, &b, maxlevel);
      if (p4est_quadrant_is_equal (&l, &b)) {
        onlyone = 1;
      }
      else {
        includeb = 1;
        for (c = b; p4est_quadrant_child_id (&c) == P4EST_CHILDREN - 1; b = c) {
          p4est_quadrant_parent (&c, &c);
          p4est_quadrant_first_descendant (&c, &f, maxlevel);
          if (p4est_quadrant_compare (&l, &f) >= 0) {
            break;
          }
        }
      }
    }
    else {
      b = n;
    }

    /* create a complete tree */
    if (onlyone) {
      quad = p4est_quadrant_array_push (&tree->quadrants);
      *quad = a;
      p4est_quadrant_init_data (p4est, jt, quad, p4est_points_init);
      tree->maxlevel = a.level;
      ++tree->quadrants_per_level[a.level];
    }
    else {
      p4est_complete_region (p4est, &a, 1, &b, includeb,
                             tree, jt, p4est_points_init);
      quad = p4est_quadrant_array_index (&tree->quadrants,
                                         tree->quadrants.elem_count - 1);
    }
    tree->quadrants_offset = p4est->local_num_quadrants;
    p4est->local_num_quadrants += tree->quadrants.elem_count;
    p4est_quadrant_last_descendant (quad, &tree->last_desc, P4EST_QMAXLEVEL);

    /* verification */
#ifdef P4EST_ENABLE_DEBUG
    first_quad = p4est_quadrant_array_index (&tree->quadrants, 0);
    for (zz = 1; zz < tree->quadrants.elem_count; ++zz) {
      next_quad = p4est_quadrant_array_index (&tree->quadrants, zz);
      P4EST_ASSERT (((p4est_locidx_t *) first_quad->p.user_data)[1] ==
                    ((p4est_locidx_t *) next_quad->p.user_data)[0]);
      first_quad = next_quad;
    }
#endif
  }
  if (last_tree >= 0) {
    for (; jt < num_trees; ++jt) {
      tree = p4est_tree_array_index (p4est->trees, jt);
      tree->quadrants_offset = p4est->local_num_quadrants;
    }
  }

  /* compute some member variables */
  p4est->global_first_quadrant = P4EST_ALLOC (p4est_gloidx_t, num_procs + 1);
  p4est_comm_count_quadrants (p4est);

  /* print more statistics */
  P4EST_VERBOSEF ("total local quadrants %lld\n",
                  (long long) p4est->local_num_quadrants);

  P4EST_ASSERT (p4est_is_valid (p4est));
  p4est_log_indent_pop ();
  P4EST_GLOBAL_PRODUCTIONF ("Done " P4EST_STRING
                            "_new_points with %lld total quadrants\n",
                            (long long) p4est->global_num_quadrants);

  /* refine to have one point per quadrant */
  if (max_points >= 0) {
    p4est_refine_ext (p4est, 1, maxlevel, p4est_points_refine,
                      p4est_points_init, NULL);
#ifdef P4EST_ENABLE_DEBUG
    for (jt = first_tree; jt <= last_tree; ++jt) {
      tree = p4est_tree_array_index (p4est->trees, jt);
      first_quad = p4est_quadrant_array_index (&tree->quadrants, 0);
      for (zz = 1; zz < tree->quadrants.elem_count; ++zz) {
        next_quad = p4est_quadrant_array_index (&tree->quadrants, zz);
        P4EST_ASSERT (((p4est_locidx_t *) first_quad->p.user_data)[1] ==
                      ((p4est_locidx_t *) next_quad->p.user_data)[0]);
        first_quad = next_quad;
      }
    }
#endif
  }

  /* initialize user pointer and data size */
  p4est_reset_data (p4est, data_size, init_fn, user_pointer);

  return p4est;
}
Beispiel #2
0
int
main (int argc, char **argv)
{
  sc_MPI_Comm         mpicomm;
  int                 mpiret;
  int                 mpisize, mpirank;
  unsigned            crc;
#ifndef P4_TO_P8
  size_t              kz;
  int8_t              l;
  p4est_quadrant_t   *q;
  p4est_tree_t        stree, *tree = &stree;
#endif
  p4est_t            *p4est;
  p4est_connectivity_t *connectivity;

  /* initialize MPI */
  mpiret = sc_MPI_Init (&argc, &argv);
  SC_CHECK_MPI (mpiret);
  mpicomm = sc_MPI_COMM_WORLD;
  mpiret = sc_MPI_Comm_size (mpicomm, &mpisize);
  SC_CHECK_MPI (mpiret);
  mpiret = sc_MPI_Comm_rank (mpicomm, &mpirank);
  SC_CHECK_MPI (mpiret);

  sc_init (mpicomm, 1, 1, NULL, SC_LP_DEFAULT);
  p4est_init (NULL, SC_LP_DEFAULT);

#ifndef P4_TO_P8
  connectivity = p4est_connectivity_new_star ();
#else
  connectivity = p8est_connectivity_new_rotcubes ();
#endif
  p4est = p4est_new_ext (mpicomm, connectivity, 0, 0, 0, 4, NULL, NULL);

#ifndef P4_TO_P8
  /* build empty tree */
  sc_array_init (&tree->quadrants, sizeof (p4est_quadrant_t));
  for (l = 0; l <= P4EST_MAXLEVEL; ++l) {
    tree->quadrants_per_level[l] = 0;
  }
  tree->maxlevel = 0;

  /* insert two quadrants */
  sc_array_resize (&tree->quadrants, 4);
  q = p4est_quadrant_array_index (&tree->quadrants, 0);
  p4est_quadrant_set_morton (q, 3, 13);
  q = p4est_quadrant_array_index (&tree->quadrants, 1);
  p4est_quadrant_set_morton (q, 1, 1);
  q = p4est_quadrant_array_index (&tree->quadrants, 2);
  p4est_quadrant_set_morton (q, 1, 2);
  q = p4est_quadrant_array_index (&tree->quadrants, 3);
  p4est_quadrant_set_morton (q, 1, 3);
  for (kz = 0; kz < tree->quadrants.elem_count; ++kz) {
    q = p4est_quadrant_array_index (&tree->quadrants, kz);
    q->p.user_data = sc_mempool_alloc (p4est->user_data_pool);
    ++tree->quadrants_per_level[q->level];
    tree->maxlevel = (int8_t) SC_MAX (tree->maxlevel, q->level);
  }

  /* balance the tree, print and destroy */
#if 0
  p4est_balance_subtree (p4est, P4EST_CONNECT_FULL, 0, NULL);
  p4est_tree_print (SC_LP_INFO, tree);
#endif
  for (kz = 0; kz < tree->quadrants.elem_count; ++kz) {
    q = p4est_quadrant_array_index (&tree->quadrants, kz);
    sc_mempool_free (p4est->user_data_pool, q->p.user_data);
  }
  sc_array_reset (&tree->quadrants);
#endif /* !P4_TO_P8 */

  /* check reset data function */
  p4est_reset_data (p4est, 0, init_fn, NULL);
  p4est_reset_data (p4est, 0, NULL, NULL);

  /* refine and balance the forest */
  SC_CHECK_ABORT (p4est_is_balanced (p4est, P4EST_CONNECT_FULL), "Balance 1");
  p4est_refine (p4est, 1, refine_fn, NULL);
  SC_CHECK_ABORT (!p4est_is_balanced (p4est, P4EST_CONNECT_FULL),
                  "Balance 2");
  p4est_balance (p4est, P4EST_CONNECT_FULL, NULL);
  SC_CHECK_ABORT (p4est_is_balanced (p4est, P4EST_CONNECT_FULL), "Balance 3");

  /* check reset data function */
  p4est_reset_data (p4est, 17, NULL, NULL);
  p4est_reset_data (p4est, 8, init_fn, NULL);

  /* checksum and partition */
  crc = p4est_checksum (p4est);
  p4est_partition (p4est, 0, NULL);
  SC_CHECK_ABORT (p4est_checksum (p4est) == crc, "Partition");
  SC_CHECK_ABORT (p4est_is_balanced (p4est, P4EST_CONNECT_FULL), "Balance 4");

  /* check reset data function */
  p4est_reset_data (p4est, 3, NULL, NULL);
  p4est_reset_data (p4est, 3, NULL, NULL);

  /* checksum and rebalance */
  crc = p4est_checksum (p4est);
  p4est_balance (p4est, P4EST_CONNECT_FULL, NULL);
  SC_CHECK_ABORT (p4est_checksum (p4est) == crc, "Rebalance");

  /* clean up and exit */
  P4EST_ASSERT (p4est->user_data_pool->elem_count ==
                (size_t) p4est->local_num_quadrants);
  p4est_destroy (p4est);
  p4est_connectivity_destroy (connectivity);

  sc_finalize ();

  mpiret = sc_MPI_Finalize ();
  SC_CHECK_MPI (mpiret);

  return 0;
}
Beispiel #3
0
static void
test_periodic (p8est_connectivity_t * conn)
{
  int                 i;
  int                 iface, nface;
  int                 iedge, icorner;
  int                 ft[9];
  size_t              zz;
  p4est_topidx_t      itree, ntree;
  p8est_edge_info_t   ei;
  p8est_edge_transform_t *et;
  p8est_corner_info_t ci;
  p8est_corner_transform_t *ct;
  sc_array_t         *eta, *cta;

  itree = 0;
  for (iface = 0; iface < 6; ++iface) {
    ntree = p8est_find_face_transform (conn, itree, iface, ft);
    nface = p8est_face_dual[iface];
    SC_CHECK_ABORT (ntree == itree, "PF tree");
    for (i = 0; i < 3; ++i) {
      SC_CHECK_ABORTF (ft[i] == ft[i + 3], "PF axis %d", i);
    }
    SC_CHECK_ABORT (ft[6] == 0 && ft[7] == 0, "PF reverse");
    SC_CHECK_ABORT (ft[8] == 2 * (iface % 2) + nface % 2, "PF code");
  }

  eta = &ei.edge_transforms;
  sc_array_init (eta, sizeof (p8est_edge_transform_t));
  for (iedge = 0; iedge < 12; ++iedge) {
    p8est_find_edge_transform (conn, itree, iedge, &ei);
    SC_CHECK_ABORT ((int) ei.iedge == iedge, "PE ei");
    SC_CHECK_ABORT (eta->elem_count == 1, "PE count");
    for (zz = 0; zz < eta->elem_count; ++zz) {
      et = p8est_edge_array_index (eta, zz);
      SC_CHECK_ABORT (et->ntree == itree, "PE tree");
      SC_CHECK_ABORT ((int) et->nedge + iedge == 8 * (iedge / 4) + 3,
                      "PE edge");
      SC_CHECK_ABORT (et->nflip == 0, "PE flip");
      SC_CHECK_ABORT (et->corners == et->nedge % 4, "PE corners");
      SC_CHECK_ABORT ((int) et->naxis[0] == iedge / 4 &&
                      et->naxis[1] < et->naxis[2] &&
                      et->naxis[0] + et->naxis[1] + et->naxis[2] == 3,
                      "PE axis");
    }
  }
  sc_array_reset (eta);

  cta = &ci.corner_transforms;
  sc_array_init (cta, sizeof (p8est_corner_transform_t));
  for (icorner = 0; icorner < 8; ++icorner) {
    p8est_find_corner_transform (conn, itree, icorner, &ci);
    SC_CHECK_ABORT ((int) ci.icorner == icorner, "PC ci");
    SC_CHECK_ABORT (cta->elem_count == 1, "PC count");
    for (zz = 0; zz < cta->elem_count; ++zz) {
      ct = p8est_corner_array_index (cta, zz);
      SC_CHECK_ABORT (ct->ntree == itree, "PC tree");
      SC_CHECK_ABORT (ct->ncorner + icorner == 7, "PC corner");
    }
  }
  sc_array_reset (cta);
}
Beispiel #4
0
int
main (int argc, char **argv)
{
  const p4est_qcoord_t qone = 1;
  int                 mpiret;
  int                 k;
  int                 level, mid, cid;
  int                 id0, id1, id2, id3;
  int64_t             index1, index2;
  size_t              iz, jz, incount;
  p4est_qcoord_t      mh = P4EST_QUADRANT_LEN (P4EST_QMAXLEVEL);
  p4est_connectivity_t *connectivity;
  p4est_t            *p4est1;
  p4est_t            *p4est2;
  p4est_tree_t       *t1, *t2, tree;
  p4est_quadrant_t   *p, *q1, *q2;
  p4est_quadrant_t    r, s;
  p4est_quadrant_t    c0, c1, c2, c3;
  p4est_quadrant_t    cv[P4EST_CHILDREN], *cp[P4EST_CHILDREN];
  p4est_quadrant_t    A, B, C, D, E, F, G, H, I, P, Q;
  p4est_quadrant_t    a, f, g, h;
  uint64_t            Aid, Fid;

  /* initialize MPI */
  mpiret = sc_MPI_Init (&argc, &argv);
  SC_CHECK_MPI (mpiret);

  /* create connectivity and forest structures */
  connectivity = p4est_connectivity_new_unitsquare ();
  p4est1 = p4est_new_ext (sc_MPI_COMM_SELF, connectivity, 15, 0, 0,
                          0, NULL, NULL);
  p4est2 = p4est_new_ext (sc_MPI_COMM_SELF, connectivity, 15, 0, 0,
                          8, NULL, NULL);

  /* refine the second tree to a uniform level */
  p4est_refine (p4est1, 1, refine_none, NULL);
  p4est_refine (p4est2, 1, refine_some, NULL);
  t1 = p4est_tree_array_index (p4est1->trees, 0);
  t2 = p4est_tree_array_index (p4est2->trees, 0);
  SC_CHECK_ABORT (p4est_tree_is_sorted (t1), "is_sorted");
  SC_CHECK_ABORT (p4est_tree_is_sorted (t2), "is_sorted");

  /* run a bunch of cross-tests */
  p = NULL;
  for (iz = 0; iz < t1->quadrants.elem_count; ++iz) {
    q1 = p4est_quadrant_array_index (&t1->quadrants, iz);

    /* test the index conversion */
    index1 = p4est_quadrant_linear_id (q1, (int) q1->level);
    p4est_quadrant_set_morton (&r, (int) q1->level, index1);
    index2 = p4est_quadrant_linear_id (&r, (int) r.level);
    SC_CHECK_ABORT (index1 == index2, "index conversion");
    level = (int) q1->level - 1;
    if (level >= 0) {
      index1 = p4est_quadrant_linear_id (q1, level);
      p4est_quadrant_set_morton (&r, level, index1);
      index2 = p4est_quadrant_linear_id (&r, level);
      SC_CHECK_ABORT (index1 == index2, "index conversion");
    }

    /* test the is_next function */
    if (p != NULL) {
      SC_CHECK_ABORT (p4est_quadrant_is_next (p, q1), "is_next");
    }
    p = q1;

    /* test the is_family function */
    p4est_quadrant_children (q1, &c0, &c1, &c2, &c3);
    SC_CHECK_ABORT (p4est_quadrant_is_family (&c0, &c1, &c2, &c3),
                    "is_family");
    SC_CHECK_ABORT (!p4est_quadrant_is_family (&c1, &c0, &c2, &c3),
                    "is_family");
    SC_CHECK_ABORT (!p4est_quadrant_is_family (&c0, &c0, &c1, &c2),
                    "is_family");
    p4est_quadrant_childrenv (q1, cv);
    SC_CHECK_ABORT (p4est_quadrant_is_equal (&c0, &cv[0]), "is_family");
    SC_CHECK_ABORT (p4est_quadrant_is_equal (&c1, &cv[1]), "is_family");
    SC_CHECK_ABORT (p4est_quadrant_is_equal (&c2, &cv[2]), "is_family");
    SC_CHECK_ABORT (p4est_quadrant_is_equal (&c3, &cv[3]), "is_family");
    SC_CHECK_ABORT (p4est_quadrant_is_family (&cv[0], &cv[1], &cv[2], &cv[3]),
                    "is_family");
    cp[0] = &cv[0];
    cp[1] = &cv[1];
    cp[2] = &cv[2];
    cp[3] = &cv[3];
    SC_CHECK_ABORT (p4est_quadrant_is_familypv (cp), "is_family");
    cv[1] = cv[0];
    SC_CHECK_ABORT (!p4est_quadrant_is_familyv (cv), "is_family");
    cp[1] = &c1;
    SC_CHECK_ABORT (p4est_quadrant_is_familypv (cp), "is_family");
    cp[2] = &c3;
    SC_CHECK_ABORT (!p4est_quadrant_is_familypv (cp), "is_family");

    /* test the sibling function */
    mid = p4est_quadrant_child_id (q1);
    for (cid = 0; cid < 4; ++cid) {
      p4est_quadrant_sibling (q1, &r, cid);
      if (cid != mid) {
        SC_CHECK_ABORT (p4est_quadrant_is_sibling (q1, &r), "sibling");
      }
      else {
        SC_CHECK_ABORT (p4est_quadrant_is_equal (q1, &r), "sibling");
      }
    }

    /* test t1 against itself */
    for (jz = 0; jz < t1->quadrants.elem_count; ++jz) {
      q2 = p4est_quadrant_array_index (&t1->quadrants, jz);

      /* test the comparison function */
      SC_CHECK_ABORT (p4est_quadrant_compare (q1, q2) ==
                      -p4est_quadrant_compare (q2, q1), "compare");
      SC_CHECK_ABORT ((p4est_quadrant_compare (q1, q2) == 0) ==
                      p4est_quadrant_is_equal (q1, q2), "is_equal");

      /* test the descriptive versions of functions */
      SC_CHECK_ABORT (p4est_quadrant_is_sibling_D (q1, q2) ==
                      p4est_quadrant_is_sibling (q1, q2), "is_sibling");
      SC_CHECK_ABORT (p4est_quadrant_is_parent_D (q1, q2) ==
                      p4est_quadrant_is_parent (q1, q2), "is_parent");
      SC_CHECK_ABORT (p4est_quadrant_is_parent_D (q2, q1) ==
                      p4est_quadrant_is_parent (q2, q1), "is_parent");
      SC_CHECK_ABORT (p4est_quadrant_is_ancestor_D (q1, q2) ==
                      p4est_quadrant_is_ancestor (q1, q2), "is_ancestor");
      SC_CHECK_ABORT (p4est_quadrant_is_ancestor_D (q2, q1) ==
                      p4est_quadrant_is_ancestor (q2, q1), "is_ancestor");
      SC_CHECK_ABORT (p4est_quadrant_is_next_D (q1, q2) ==
                      p4est_quadrant_is_next (q1, q2), "is_next");
      SC_CHECK_ABORT (p4est_quadrant_is_next_D (q2, q1) ==
                      p4est_quadrant_is_next (q2, q1), "is_next");
      p4est_nearest_common_ancestor_D (q1, q2, &r);
      p4est_nearest_common_ancestor (q1, q2, &s);
      SC_CHECK_ABORT (p4est_quadrant_is_equal (&r, &s), "common_ancestor");
      p4est_nearest_common_ancestor_D (q2, q1, &r);
      p4est_nearest_common_ancestor (q2, q1, &s);
      SC_CHECK_ABORT (p4est_quadrant_is_equal (&r, &s), "common_ancestor");
    }

    /* test t1 against t2 */
    for (jz = 0; jz < t2->quadrants.elem_count; ++jz) {
      q2 = p4est_quadrant_array_index (&t2->quadrants, jz);

      /* test the comparison function */
      SC_CHECK_ABORT (p4est_quadrant_compare (q1, q2) ==
                      -p4est_quadrant_compare (q2, q1), "compare");
      SC_CHECK_ABORT ((p4est_quadrant_compare (q1, q2) == 0) ==
                      p4est_quadrant_is_equal (q1, q2), "is_equal");

      /* test the descriptive versions of functions */
      SC_CHECK_ABORT (p4est_quadrant_is_sibling_D (q1, q2) ==
                      p4est_quadrant_is_sibling (q1, q2), "is_sibling");
      SC_CHECK_ABORT (p4est_quadrant_is_parent_D (q1, q2) ==
                      p4est_quadrant_is_parent (q1, q2), "is_parent");
      SC_CHECK_ABORT (p4est_quadrant_is_parent_D (q2, q1) ==
                      p4est_quadrant_is_parent (q2, q1), "is_parent");
      SC_CHECK_ABORT (p4est_quadrant_is_ancestor_D (q1, q2) ==
                      p4est_quadrant_is_ancestor (q1, q2), "is_ancestor");
      SC_CHECK_ABORT (p4est_quadrant_is_ancestor_D (q2, q1) ==
                      p4est_quadrant_is_ancestor (q2, q1), "is_ancestor");
      SC_CHECK_ABORT (p4est_quadrant_is_next_D (q1, q2) ==
                      p4est_quadrant_is_next (q1, q2), "is_next");
      SC_CHECK_ABORT (p4est_quadrant_is_next_D (q2, q1) ==
                      p4est_quadrant_is_next (q2, q1), "is_next");
      p4est_nearest_common_ancestor_D (q1, q2, &r);
      p4est_nearest_common_ancestor (q1, q2, &s);
      SC_CHECK_ABORT (p4est_quadrant_is_equal (&r, &s), "common_ancestor");
      p4est_nearest_common_ancestor_D (q2, q1, &r);
      p4est_nearest_common_ancestor (q2, q1, &s);
      SC_CHECK_ABORT (p4est_quadrant_is_equal (&r, &s), "common_ancestor");
    }
  }

  p = NULL;
  for (iz = 0; iz < t2->quadrants.elem_count; ++iz) {
    q1 = p4est_quadrant_array_index (&t2->quadrants, iz);

    /* test the is_next function */
    if (p != NULL) {
      SC_CHECK_ABORT (p4est_quadrant_is_next (p, q1), "is_next");
    }
    p = q1;
  }

  /* test the coarsen function */
  p4est_coarsen (p4est1, 1, coarsen_none, NULL);
  p4est_coarsen (p4est1, 1, coarsen_all, NULL);
  p4est_coarsen (p4est2, 1, coarsen_some, NULL);

  /* test the linearize algorithm */
  incount = t2->quadrants.elem_count;
  (void) p4est_linearize_tree (p4est2, t2);
  SC_CHECK_ABORT (incount == t2->quadrants.elem_count, "linearize");

  /* this is user_data neutral only when p4est1->data_size == 0 */
  sc_array_init (&tree.quadrants, sizeof (p4est_quadrant_t));
  sc_array_resize (&tree.quadrants, 18);
  q1 = p4est_quadrant_array_index (&tree.quadrants, 0);
  q2 = p4est_quadrant_array_index (&t2->quadrants, 0);
  *q1 = *q2;
  q2 = p4est_quadrant_array_index (&t2->quadrants, 1);
  for (k = 0; k < 3; ++k) {
    q1 = p4est_quadrant_array_index (&tree.quadrants, (size_t) (k + 1));
    *q1 = *q2;
    q1->level = (int8_t) (q1->level + k);
  }
  for (k = 0; k < 10; ++k) {
    q1 = p4est_quadrant_array_index (&tree.quadrants, (size_t) (k + 4));
    q2 = p4est_quadrant_array_index (&t2->quadrants, (size_t) (k + 3));
    *q1 = *q2;
    q1->level = (int8_t) (q1->level + k);
  }
  for (k = 0; k < 4; ++k) {
    q1 = p4est_quadrant_array_index (&tree.quadrants, (size_t) (k + 14));
    q2 = p4est_quadrant_array_index (&t2->quadrants, (size_t) (k + 12));
    *q1 = *q2;
    q1->level = (int8_t) (q1->level + 10 + k);
  }
  tree.maxlevel = 0;
  for (k = 0; k <= P4EST_QMAXLEVEL; ++k) {
    tree.quadrants_per_level[k] = 0;
  }
  for (; k <= P4EST_MAXLEVEL; ++k) {
    tree.quadrants_per_level[k] = -1;
  }
  incount = tree.quadrants.elem_count;
  for (iz = 0; iz < incount; ++iz) {
    q1 = p4est_quadrant_array_index (&tree.quadrants, iz);
    ++tree.quadrants_per_level[q1->level];
    tree.maxlevel = (int8_t) SC_MAX (tree.maxlevel, q1->level);
  }
  SC_CHECK_ABORT (!p4est_tree_is_linear (&tree), "is_linear");
  (void) p4est_linearize_tree (p4est1, &tree);
  SC_CHECK_ABORT (incount - 3 == tree.quadrants.elem_count, "linearize");
  sc_array_reset (&tree.quadrants);

  /* create a partial tree and check overlap */
  sc_array_resize (&tree.quadrants, 3);
  q1 = p4est_quadrant_array_index (&tree.quadrants, 0);
  p4est_quadrant_set_morton (q1, 1, 1);
  q1 = p4est_quadrant_array_index (&tree.quadrants, 1);
  p4est_quadrant_set_morton (q1, 2, 8);
  q1 = p4est_quadrant_array_index (&tree.quadrants, 2);
  p4est_quadrant_set_morton (q1, 2, 9);
  for (k = 0; k <= P4EST_QMAXLEVEL; ++k) {
    tree.quadrants_per_level[k] = 0;
  }
  for (; k <= P4EST_MAXLEVEL; ++k) {
    tree.quadrants_per_level[k] = -1;
  }
  tree.quadrants_per_level[1] = 1;
  tree.quadrants_per_level[2] = 2;
  tree.maxlevel = 2;
  p4est_quadrant_first_descendant (p4est_quadrant_array_index
                                   (&tree.quadrants, 0), &tree.first_desc,
                                   P4EST_QMAXLEVEL);
  p4est_quadrant_last_descendant (p4est_quadrant_array_index
                                  (&tree.quadrants,
                                   tree.quadrants.elem_count - 1),
                                  &tree.last_desc, P4EST_QMAXLEVEL);
  SC_CHECK_ABORT (p4est_tree_is_complete (&tree), "is_complete");

  p4est_quadrant_set_morton (&D, 0, 0);
  SC_CHECK_ABORT (p4est_quadrant_overlaps_tree (&tree, &D), "overlaps 0");

  p4est_quadrant_set_morton (&A, 1, 0);
  SC_CHECK_ABORT (!p4est_quadrant_overlaps_tree (&tree, &A), "overlaps 1");
  p4est_quadrant_set_morton (&A, 1, 1);
  SC_CHECK_ABORT (p4est_quadrant_overlaps_tree (&tree, &A), "overlaps 2");
  p4est_quadrant_set_morton (&A, 1, 2);
  SC_CHECK_ABORT (p4est_quadrant_overlaps_tree (&tree, &A), "overlaps 3");
  p4est_quadrant_set_morton (&A, 1, 3);
  SC_CHECK_ABORT (!p4est_quadrant_overlaps_tree (&tree, &A), "overlaps 4");

  p4est_quadrant_set_morton (&B, 3, 13);
  SC_CHECK_ABORT (!p4est_quadrant_overlaps_tree (&tree, &B), "overlaps 5");
  p4est_quadrant_set_morton (&B, 3, 25);
  SC_CHECK_ABORT (p4est_quadrant_overlaps_tree (&tree, &B), "overlaps 6");
  p4est_quadrant_set_morton (&B, 3, 39);
  SC_CHECK_ABORT (p4est_quadrant_overlaps_tree (&tree, &B), "overlaps 7");
  p4est_quadrant_set_morton (&B, 3, 40);
  SC_CHECK_ABORT (!p4est_quadrant_overlaps_tree (&tree, &B), "overlaps 8");

  p4est_quadrant_set_morton (&C, 4, 219);
  SC_CHECK_ABORT (!p4est_quadrant_overlaps_tree (&tree, &C), "overlaps 9");

  sc_array_reset (&tree.quadrants);

  /* destroy the p4est and its connectivity structure */
  p4est_destroy (p4est1);
  p4est_destroy (p4est2);
  p4est_connectivity_destroy (connectivity);

  /* This will test the ability to address negative quadrants */
  P4EST_QUADRANT_INIT (&A);
  P4EST_QUADRANT_INIT (&B);
  P4EST_QUADRANT_INIT (&C);
  P4EST_QUADRANT_INIT (&D);
  P4EST_QUADRANT_INIT (&E);
  P4EST_QUADRANT_INIT (&F);
  P4EST_QUADRANT_INIT (&G);
  P4EST_QUADRANT_INIT (&H);
  P4EST_QUADRANT_INIT (&I);
  P4EST_QUADRANT_INIT (&P);
  P4EST_QUADRANT_INIT (&Q);

  A.x = -qone << P4EST_MAXLEVEL;
  A.y = -qone << P4EST_MAXLEVEL;
  A.level = 0;

  B.x = qone << P4EST_MAXLEVEL;
  B.y = -qone << P4EST_MAXLEVEL;
  B.level = 0;

  C.x = -qone << P4EST_MAXLEVEL;
  C.y = qone << P4EST_MAXLEVEL;
  C.level = 0;

  D.x = qone << P4EST_MAXLEVEL;
  D.y = qone << P4EST_MAXLEVEL;
  D.level = 0;

  /* this one is outside the 3x3 box */
  E.x = -qone << (P4EST_MAXLEVEL + 1);
  E.y = -qone;
  E.level = 0;

  F.x = P4EST_ROOT_LEN + (P4EST_ROOT_LEN - mh);
  F.y = P4EST_ROOT_LEN + (P4EST_ROOT_LEN - mh);
  F.level = P4EST_QMAXLEVEL;

  G.x = -mh;
  G.y = -mh;
  G.level = P4EST_QMAXLEVEL;

  H.x = -qone << (P4EST_MAXLEVEL - 1);
  H.y = -qone << (P4EST_MAXLEVEL - 1);
  H.level = 1;

  I.x = -qone << P4EST_MAXLEVEL;
  I.y = -qone << (P4EST_MAXLEVEL - 1);
  I.level = 1;

  check_linear_id (&A, &A);
  check_linear_id (&A, &B);
  check_linear_id (&A, &C);
  check_linear_id (&A, &D);
  /* check_linear_id (&A, &E); */
  check_linear_id (&A, &F);
  check_linear_id (&A, &G);
  check_linear_id (&A, &H);
  check_linear_id (&A, &I);

  check_linear_id (&B, &A);
  check_linear_id (&B, &B);
  check_linear_id (&B, &C);
  check_linear_id (&B, &D);
  /* check_linear_id (&B, &E); */
  check_linear_id (&B, &F);
  check_linear_id (&B, &G);
  check_linear_id (&B, &H);
  check_linear_id (&B, &I);

  check_linear_id (&D, &A);
  check_linear_id (&D, &B);
  check_linear_id (&D, &C);
  check_linear_id (&D, &D);
  /* check_linear_id (&D, &E); */
  check_linear_id (&D, &F);
  check_linear_id (&D, &G);
  check_linear_id (&D, &H);
  check_linear_id (&D, &I);

  check_linear_id (&G, &A);
  check_linear_id (&G, &B);
  check_linear_id (&G, &C);
  check_linear_id (&G, &D);
  /* check_linear_id (&G, &E); */
  check_linear_id (&G, &F);
  check_linear_id (&G, &G);
  check_linear_id (&G, &H);
  check_linear_id (&G, &I);

  check_linear_id (&I, &A);
  check_linear_id (&I, &B);
  check_linear_id (&I, &C);
  check_linear_id (&I, &D);
  /* check_linear_id (&I, &E); */
  check_linear_id (&I, &F);
  check_linear_id (&I, &G);
  check_linear_id (&I, &H);
  check_linear_id (&I, &I);

  SC_CHECK_ABORT (p4est_quadrant_is_extended (&A) == 1, "is_extended A");
  SC_CHECK_ABORT (p4est_quadrant_is_extended (&B) == 1, "is_extended B");
  SC_CHECK_ABORT (p4est_quadrant_is_extended (&C) == 1, "is_extended C");
  SC_CHECK_ABORT (p4est_quadrant_is_extended (&D) == 1, "is_extended D");
  SC_CHECK_ABORT (!p4est_quadrant_is_extended (&E) == 1, "!is_extended E");
  SC_CHECK_ABORT (p4est_quadrant_is_extended (&F) == 1, "is_extended F");
  SC_CHECK_ABORT (p4est_quadrant_is_extended (&G) == 1, "is_extended G");

  SC_CHECK_ABORT (p4est_quadrant_compare (&A, &A) == 0, "compare");
  SC_CHECK_ABORT (p4est_quadrant_compare (&A, &B) > 0, "compare");
  SC_CHECK_ABORT (p4est_quadrant_compare (&B, &A) < 0, "compare");

  SC_CHECK_ABORT (p4est_quadrant_compare (&F, &F) == 0, "compare");
  SC_CHECK_ABORT (p4est_quadrant_compare (&G, &F) > 0, "compare");
  SC_CHECK_ABORT (p4est_quadrant_compare (&F, &G) < 0, "compare");

  A.p.which_tree = 0;
  B.p.piggy1.which_tree = 0;
  SC_CHECK_ABORT (p4est_quadrant_compare_piggy (&A, &A) == 0,
                  "compare_piggy");
  SC_CHECK_ABORT (p4est_quadrant_compare_piggy (&A, &B) > 0, "compare_piggy");
  SC_CHECK_ABORT (p4est_quadrant_compare_piggy (&B, &A) < 0, "compare_piggy");

  F.p.piggy2.which_tree = 0;
  G.p.which_tree = 0;
  SC_CHECK_ABORT (p4est_quadrant_compare_piggy (&F, &F) == 0,
                  "compare_piggy");
  SC_CHECK_ABORT (p4est_quadrant_compare_piggy (&G, &F) > 0, "compare_piggy");
  SC_CHECK_ABORT (p4est_quadrant_compare_piggy (&F, &G) < 0, "compare_piggy");

  F.p.piggy1.which_tree = (p4est_topidx_t) P4EST_TOPIDX_MAX - 3;
  G.p.piggy2.which_tree = (p4est_topidx_t) P4EST_TOPIDX_MAX / 2;
  SC_CHECK_ABORT (p4est_quadrant_compare_piggy (&F, &F) == 0,
                  "compare_piggy");
  SC_CHECK_ABORT (p4est_quadrant_compare_piggy (&G, &F) < 0, "compare_piggy");
  SC_CHECK_ABORT (p4est_quadrant_compare_piggy (&F, &G) > 0, "compare_piggy");

  SC_CHECK_ABORT (p4est_quadrant_is_equal (&A, &A) == 1, "is_equal");
  SC_CHECK_ABORT (p4est_quadrant_is_equal (&F, &F) == 1, "is_equal");
  SC_CHECK_ABORT (p4est_quadrant_is_equal (&G, &G) == 1, "is_equal");

  /* Not sure if these make sense because D, O and A are all level 0 */
#if 0
  SC_CHECK_ABORT (p4est_quadrant_is_sibling (&D, &O) == 1, "is_sibling");
  SC_CHECK_ABORT (p4est_quadrant_is_sibling (&D, &A) == 0, "is_sibling");
  SC_CHECK_ABORT (p4est_quadrant_is_sibling_D (&D, &O) == 1, "is_sibling_D");
  SC_CHECK_ABORT (p4est_quadrant_is_sibling_D (&D, &A) == 0, "is_sibling_D");
#endif

  SC_CHECK_ABORT (p4est_quadrant_is_sibling (&I, &H) == 1, "is_sibling");
  SC_CHECK_ABORT (p4est_quadrant_is_sibling (&I, &G) == 0, "is_sibling");
  SC_CHECK_ABORT (p4est_quadrant_is_sibling_D (&I, &H) == 1, "is_sibling_D");
  SC_CHECK_ABORT (p4est_quadrant_is_sibling_D (&I, &G) == 0, "is_sibling_D");

  SC_CHECK_ABORT (p4est_quadrant_is_parent (&A, &H) == 1, "is_parent");
  SC_CHECK_ABORT (p4est_quadrant_is_parent (&H, &A) == 0, "is_parent");
  SC_CHECK_ABORT (p4est_quadrant_is_parent (&A, &D) == 0, "is_parent");
  SC_CHECK_ABORT (p4est_quadrant_is_parent_D (&A, &H) == 1, "is_parent_D");

  SC_CHECK_ABORT (p4est_quadrant_is_ancestor (&A, &G) == 1, "is_ancestor");
  SC_CHECK_ABORT (p4est_quadrant_is_ancestor (&G, &A) == 0, "is_ancestor");

  SC_CHECK_ABORT (p4est_quadrant_is_ancestor_D (&A, &G) == 1,
                  "is_ancestor_D");
  SC_CHECK_ABORT (p4est_quadrant_is_ancestor_D (&G, &A) == 0,
                  "is_ancestor_D");

  /* SC_CHECK_ABORT (p4est_quadrant_is_next (&F, &E) == 1, "is_next"); */
  SC_CHECK_ABORT (p4est_quadrant_is_next (&A, &H) == 0, "is_next");
  /* SC_CHECK_ABORT (p4est_quadrant_is_next_D (&F, &E) == 1, "is_next_D"); */
  SC_CHECK_ABORT (p4est_quadrant_is_next_D (&A, &H) == 0, "is_next_D");

  p4est_quadrant_parent (&H, &a);
  SC_CHECK_ABORT (p4est_quadrant_is_equal (&A, &a) == 1, "parent");

  p4est_quadrant_sibling (&I, &h, 3);
  SC_CHECK_ABORT (p4est_quadrant_is_equal (&H, &h) == 1, "sibling");

  p4est_quadrant_children (&A, &c0, &c1, &c2, &c3);
  SC_CHECK_ABORT (p4est_quadrant_is_equal (&c2, &I) == 1, "children");
  SC_CHECK_ABORT (p4est_quadrant_is_equal (&c3, &H) == 1, "children");
  SC_CHECK_ABORT (p4est_quadrant_is_equal (&c3, &G) == 0, "children");

  SC_CHECK_ABORT (p4est_quadrant_is_family (&c0, &c1, &c2, &c3) == 1,
                  "is_family");
  id0 = p4est_quadrant_child_id (&c0);
  id1 = p4est_quadrant_child_id (&c1);
  id2 = p4est_quadrant_child_id (&c2);
  id3 = p4est_quadrant_child_id (&c3);
  SC_CHECK_ABORT (id0 == 0 && id1 == 1 && id2 == 2 && id3 == 3, "child_id");
  SC_CHECK_ABORT (p4est_quadrant_child_id (&G) == 3, "child_id");

  p4est_quadrant_first_descendant (&A, &c1, 1);
  SC_CHECK_ABORT (p4est_quadrant_is_equal (&c0, &c1) == 1,
                  "first_descendant");

  p4est_quadrant_last_descendant (&A, &g, P4EST_QMAXLEVEL);
  SC_CHECK_ABORT (p4est_quadrant_is_equal (&G, &g) == 1, "last_descendant");

  Fid = p4est_quadrant_linear_id (&F, P4EST_QMAXLEVEL);
  p4est_quadrant_set_morton (&f, P4EST_QMAXLEVEL, Fid);
  SC_CHECK_ABORT (p4est_quadrant_is_equal (&F, &f) == 1,
                  "set_morton/linear_id");

  Aid = p4est_quadrant_linear_id (&A, 0);
  p4est_quadrant_set_morton (&a, 0, Aid);
  SC_CHECK_ABORT (Aid == 15, "linear_id");
  SC_CHECK_ABORT (p4est_quadrant_is_equal (&A, &a) == 1,
                  "set_morton/linear_id");

  p4est_nearest_common_ancestor (&I, &H, &a);
  SC_CHECK_ABORT (p4est_quadrant_is_equal (&A, &a) == 1, "ancestor");

  p4est_nearest_common_ancestor_D (&I, &H, &a);
  SC_CHECK_ABORT (p4est_quadrant_is_equal (&A, &a) == 1, "ancestor_D");

  for (k = 0; k < 16; ++k) {
    if (k != 4 && k != 6 && k != 8 && k != 9 && k != 12 && k != 13 && k != 14) {
      p4est_quadrant_set_morton (&E, 0, (uint64_t) k);
    }
  }
  p4est_quadrant_set_morton (&P, 0, 10);
  p4est_quadrant_set_morton (&Q, 0, 11);
  SC_CHECK_ABORT (p4est_quadrant_is_next (&P, &Q), "is_next");
  SC_CHECK_ABORT (!p4est_quadrant_is_next (&A, &Q), "is_next");

  sc_finalize ();

  mpiret = sc_MPI_Finalize ();
  SC_CHECK_MPI (mpiret);

  return 0;
}
Beispiel #5
0
static void
test_weird (void)
{
  const p4est_topidx_t num_edges = 1, num_ett = 2;
  const p4est_topidx_t num_corners = 1, num_ctt = 4;
  int                 i;
  size_t              zz;
  p8est_edge_info_t   ei;
  p8est_edge_transform_t *et;
  p8est_corner_info_t ci;
  p8est_corner_transform_t *ct;
  sc_array_t         *eta, *cta;
  p8est_connectivity_t *conn;

  conn = p8est_connectivity_new (0, 1,
                                 num_edges, num_ett, num_corners, num_ctt);
  for (i = 0; i < 6; ++i) {
    conn->tree_to_tree[i] = 0;
    conn->tree_to_face[i] = (int8_t) i;
  }
  conn->tree_to_face[4] = 5;
  conn->tree_to_face[5] = 4;

  for (i = 0; i < 12; ++i) {
    conn->tree_to_edge[i] = -1;
  }
  conn->tree_to_edge[5] = 0;
  conn->tree_to_edge[7] = 0;
  conn->edge_to_tree[0] = 0;
  conn->edge_to_tree[1] = 0;
  conn->edge_to_edge[0] = 5;
  conn->edge_to_edge[1] = 19;
  conn->ett_offset[0] = 0;

  for (i = 0; i < 8; ++i) {
    conn->tree_to_corner[i] = -1;
  }
  conn->tree_to_corner[0] = 0;
  conn->tree_to_corner[1] = 0;
  conn->tree_to_corner[4] = 0;
  conn->tree_to_corner[5] = 0;
  conn->corner_to_tree[0] = 0;
  conn->corner_to_tree[1] = 0;
  conn->corner_to_tree[2] = 0;
  conn->corner_to_tree[3] = 0;
  conn->corner_to_corner[0] = 0;
  conn->corner_to_corner[1] = 1;
  conn->corner_to_corner[2] = 4;
  conn->corner_to_corner[3] = 5;
  conn->ctt_offset[0] = 0;

  P4EST_ASSERT (p8est_connectivity_is_valid (conn));

  eta = &ei.edge_transforms;
  sc_array_init (eta, sizeof (p8est_edge_transform_t));
  for (i = 0; i < 2; ++i) {
    p8est_find_edge_transform (conn, 0, weird_edges[i][0], &ei);
    SC_CHECK_ABORT ((int) ei.iedge == weird_edges[i][0], "WE ei");
    SC_CHECK_ABORT (eta->elem_count == 1, "WE count A");
    for (zz = 0; zz < eta->elem_count; ++zz) {
      et = p8est_edge_array_index (eta, zz);
      SC_CHECK_ABORT (et->ntree == 0, "WE tree");
      SC_CHECK_ABORT ((int) et->nedge == weird_edges[i][1], "WE edge");
      SC_CHECK_ABORT (et->nflip == 1, "WE flip");
      SC_CHECK_ABORT (et->corners == et->nedge % 4, "WE corners");
      SC_CHECK_ABORT (et->naxis[0] == 1 && et->naxis[1] == 0 &&
                      et->naxis[2] == 2, "WE axis");
    }
  }
  sc_array_reset (eta);

  cta = &ci.corner_transforms;
  sc_array_init (cta, sizeof (p8est_corner_transform_t));
  for (i = 0; i < 8; ++i) {
    p8est_find_corner_transform (conn, 0, i, &ci);
    SC_CHECK_ABORT ((int) ci.icorner == i, "WC ci");
    SC_CHECK_ABORT ((int) cta->elem_count == 2 - (i & 0x02), "WC count");
    for (zz = 0; zz < cta->elem_count; ++zz) {
      ct = p8est_corner_array_index (cta, zz);
      SC_CHECK_ABORT (ct->ntree == 0, "WC tree");
      SC_CHECK_ABORT ((size_t) ct->ncorner == 4 * zz + !(i % 2), "WC corner");
    }
  }
  sc_array_reset (cta);

  p8est_connectivity_destroy (conn);
}
Beispiel #6
0
static void
test_rotwrap (p8est_connectivity_t * conn)
{
  int                 i;
  int                 iface, nface;
  int                 iedge, icorner;
  int                 ft[9];
  size_t              zz;
  p4est_topidx_t      itree, ntree;
  p8est_edge_info_t   ei;
  p8est_edge_transform_t *et;
  p8est_corner_info_t ci;
  p8est_corner_transform_t *ct;
  sc_array_t         *eta, *cta;

  itree = 0;
  for (iface = 0; iface < 6; ++iface) {
    ntree = p8est_find_face_transform (conn, itree, iface, ft);
    if (iface == 2 || iface == 3) {
      SC_CHECK_ABORT (ntree == -1, "RF tree");
      continue;
    }
    nface = p8est_face_dual[iface];
    SC_CHECK_ABORT (ntree == itree, "RF tree");
    if (iface == 0 || iface == 1) {
      for (i = 0; i < 3; ++i) {
        SC_CHECK_ABORTF (ft[i] == (i + 1) % 3, "RFA axis A%d", i);
        SC_CHECK_ABORTF (ft[i] == ft[i + 3], "RFA axis B%d", i);
      }
      SC_CHECK_ABORT (ft[6] == 0 && ft[7] == 0, "RFA reverse");
    }
    else {
      for (i = 0; i < 3; ++i) {
        SC_CHECK_ABORTF (ft[i] == i, "RFB axis A%d", i);
      }
      SC_CHECK_ABORT (ft[0] == ft[4], "RFB axis B0");
      SC_CHECK_ABORT (ft[1] == ft[3], "RFB axis B1");
      SC_CHECK_ABORT (ft[2] == ft[5], "RFB axis B2");
      SC_CHECK_ABORT (ft[6] == (iface != 4) &&
                      ft[7] == (iface != 5), "RFB reverse");
    }
    SC_CHECK_ABORT (ft[8] == 2 * (iface % 2) + nface % 2, "RF code");
  }

  eta = &ei.edge_transforms;
  sc_array_init (eta, sizeof (p8est_edge_transform_t));
  for (iedge = 0; iedge < 12; ++iedge) {
    p8est_find_edge_transform (conn, itree, iedge, &ei);
    SC_CHECK_ABORT ((int) ei.iedge == iedge, "RE ei");
    SC_CHECK_ABORT ((int) eta->elem_count == 2 - (iedge / 4), "RE count AB");
    for (zz = 0; zz < eta->elem_count; ++zz) {
      et = p8est_edge_array_index (eta, zz);
      SC_CHECK_ABORT (et->ntree == itree, "RE tree");
      SC_CHECK_ABORT ((int) et->nedge == rotwrap_edges[iedge][zz], "RE edge");
      SC_CHECK_ABORT ((int) et->nflip == rotwrap_flip[iedge][zz], "RE flip");
      SC_CHECK_ABORT (et->corners == et->nedge % 4, "RE corners");
      SC_CHECK_ABORT ((int) et->naxis[0] == rotwrap_axes[iedge][zz] &&
                      et->naxis[1] < et->naxis[2] &&
                      et->naxis[0] + et->naxis[1] + et->naxis[2] == 3,
                      "RE axis");
    }
  }
  sc_array_reset (eta);

  cta = &ci.corner_transforms;
  sc_array_init (cta, sizeof (p8est_corner_transform_t));
  for (icorner = 0; icorner < 8; ++icorner) {
    p8est_find_corner_transform (conn, itree, icorner, &ci);
    SC_CHECK_ABORT ((int) ci.icorner == icorner, "RC ci");
    SC_CHECK_ABORT (cta->elem_count == 2, "RC count");
    for (zz = 0; zz < cta->elem_count; ++zz) {
      ct = p8est_corner_array_index (cta, zz);
      SC_CHECK_ABORT (ct->ntree == itree, "RC tree");
      SC_CHECK_ABORT ((int) ct->ncorner == rotwrap_corners[icorner][zz],
                      "RC corner");
    }
  }
  sc_array_reset (cta);
}
Beispiel #7
0
p6est_lnodes_t     *
p6est_lnodes_new (p6est_t * p6est, p6est_ghost_t * ghost, int degree)
{
  p6est_lnodes_t     *lnodes;
  p6est_profile_t    *profile;
  p4est_lnodes_t     *clnodes;
  int                 nperelem = (degree + 1) * (degree + 1) * (degree + 1);
  /* int nperface = (degree - 1) * (degree - 1); */
  /* int nperedge = (degree - 1); */
  p4est_locidx_t      ncid, cid, enid, *en;
  p4est_locidx_t      nnodecols;
  p4est_locidx_t      nelemcols;
  p4est_locidx_t      nll;
  p4est_locidx_t      nlayers;
  p4est_locidx_t     *layernodecount;
  p4est_locidx_t     *layernodeoffsets;
  p4est_locidx_t (*lr)[2];
  p4est_locidx_t      ncolnodes;
  p4est_locidx_t     *global_owned_count;
  p4est_locidx_t      num_owned, num_local;
  p4est_gloidx_t      gnum_owned, offset;
  p4est_gloidx_t     *owned_offsets;
  int                 i, j, k;
  int                 mpisize = p6est->mpisize;
  int                 mpiret;
  sc_array_t          lnoview;
  size_t              zz, nsharers;
  int                 Nrp = degree + 1;

  if (degree == 1) {
    p4est_locidx_t      eid, nid, enid2, nid2;
    p4est_locidx_t     *newnum, newlocal, newowned;

    P4EST_GLOBAL_PRODUCTION ("Into adapt p6est_lnodes_new for degree = 1\n");
    p4est_log_indent_push ();
    /* adapt 2 to 1 */

    lnodes = p6est_lnodes_new (p6est, ghost, 2);
    nll = p6est->layers->elem_count;
    num_local = lnodes->num_local_nodes;
    num_owned = lnodes->owned_count;

    en = lnodes->element_nodes;

    newnum = P4EST_ALLOC (p4est_locidx_t, P8EST_INSUL * nll);
    memset (newnum, -1, P8EST_INSUL * nll * sizeof (p4est_locidx_t));

    for (enid = 0, eid = 0; eid < nll; eid++) {
      for (k = 0; k < 3; k++) {
        for (j = 0; j < 3; j++) {
          for (i = 0; i < 3; i++, enid++) {
            if (k != 1 && j != 1 && i != 1) {
              newnum[en[enid]] = 0;
            }
          }
        }
      }
    }

    newlocal = 0;
    newowned = 0;
    for (nid = 0; nid < num_local; nid++) {
      if (newnum[nid] >= 0) {
        newnum[nid] = newlocal++;
        if (nid < num_owned) {
          newowned++;
        }
      }
    }

    /* compress en */
    enid2 = 0;
    for (enid = 0, eid = 0; eid < nll; eid++) {
      for (k = 0; k < 3; k++) {
        for (j = 0; j < 3; j++) {
          for (i = 0; i < 3; i++, enid++) {
            if (k != 1 && j != 1 && i != 1) {
              en[enid2++] = newnum[en[enid]];
            }
          }
        }
      }
    }
    P4EST_ASSERT (enid2 == P8EST_CHILDREN * nll);
    lnodes->element_nodes =
      P4EST_REALLOC (en, p4est_locidx_t, P8EST_CHILDREN * nll);

    owned_offsets = P4EST_ALLOC (p4est_gloidx_t, mpisize + 1);

    mpiret = sc_MPI_Allgather (&newowned, 1, P4EST_MPI_LOCIDX,
                               lnodes->global_owned_count, 1,
                               P4EST_MPI_LOCIDX, p6est->mpicomm);

    owned_offsets[0] = 0;
    for (i = 0; i < mpisize; i++) {
      owned_offsets[i + 1] = owned_offsets[i] + lnodes->global_owned_count[i];
    }
    lnodes->global_offset = owned_offsets[p6est->mpirank];
    lnodes->num_local_nodes = newlocal;
    lnodes->owned_count = newowned;
    lnodes->degree = 1;
    lnodes->vnodes = P8EST_CHILDREN;

    lnodes->nonlocal_nodes =
      P4EST_REALLOC (lnodes->nonlocal_nodes, p4est_gloidx_t,
                     newlocal - newowned);

    nsharers = lnodes->sharers->elem_count;
    for (zz = 0; zz < nsharers; zz++) {
      size_t              nshared, zy, zw;
      p6est_lnodes_rank_t *rank = p6est_lnodes_rank_array_index
        (lnodes->sharers, zz);

      if (rank->owned_count) {
        if (rank->rank != p6est->mpirank) {
          p4est_locidx_t      newrankowned = 0;
          p4est_locidx_t      newrankoffset = -1;

          for (nid = rank->owned_offset; nid < rank->owned_offset +
               rank->owned_count; nid++) {
            if (newnum[nid] >= 0) {
              lnodes->nonlocal_nodes[newnum[nid] - newowned] =
                owned_offsets[rank->rank];
              newrankowned++;
              if (newrankoffset < 0) {
                newrankoffset = newnum[nid];
              }
            }
          }
          rank->owned_offset = newrankoffset;
          rank->owned_count = newrankowned;
        }
        else {
          rank->owned_offset = 0;
          rank->owned_count = newowned;
        }
      }
      rank->shared_mine_count = 0;
      rank->shared_mine_offset = -1;
      zw = 0;
      nshared = rank->shared_nodes.elem_count;
      for (zy = 0; zy < nshared; zy++) {

        nid = *((p4est_locidx_t *) sc_array_index (&rank->shared_nodes, zy));
        if (newnum[nid] >= 0) {
          p4est_locidx_t     *lp;

          lp = (p4est_locidx_t *) sc_array_index (&rank->shared_nodes, zw++);
          *lp = newnum[nid];
          if (newnum[nid] < newowned) {
            rank->shared_mine_count++;
            if (rank->shared_mine_offset == -1) {
              rank->shared_mine_offset = zw - 1;
            }
          }
        }
      }
      sc_array_resize (&rank->shared_nodes, zw);
    }

    /* send local numbers to others */
    {
      sc_array_t          view;

      sc_array_init_data (&view, newnum, sizeof (p4est_locidx_t), newlocal);

      p6est_lnodes_share_owned (&view, lnodes);
    }

    nid2 = 0;
    for (nid = num_owned; nid < num_local; nid++) {
      if (newnum[nid] >= 0) {
        lnodes->nonlocal_nodes[nid2++] += (p4est_gloidx_t) newnum[nid];
      }
    }
    P4EST_ASSERT (nid2 == newlocal - newowned);

    P4EST_FREE (owned_offsets);
    P4EST_FREE (newnum);

    p4est_log_indent_pop ();
    P4EST_GLOBAL_PRODUCTION ("Done adapt p6est_lnodes_new for degree = 1\n");

    return lnodes;
  }

  P4EST_GLOBAL_PRODUCTION ("Into p6est_lnodes_new\n");
  p4est_log_indent_push ();

  P4EST_ASSERT (degree >= 1);

  lnodes = P4EST_ALLOC (p6est_lnodes_t, 1);

  /* first get the profile */
  profile = p6est_profile_new_local (p6est, ghost, P6EST_PROFILE_INTERSECTION,
                                     P8EST_CONNECT_FULL, degree);
  p6est_profile_sync (profile);

  lr = (p4est_locidx_t (*)[2]) profile->lnode_ranges;

  clnodes = profile->lnodes;

  nnodecols = clnodes->num_local_nodes;
  nelemcols = clnodes->num_local_elements;
  en = clnodes->element_nodes;
  layernodecount = P4EST_ALLOC_ZERO (p4est_locidx_t, nnodecols);
  layernodeoffsets = P4EST_ALLOC_ZERO (p4est_locidx_t, nnodecols + 1);
  for (cid = 0, enid = 0; cid < nelemcols; cid++) {
    for (j = 0; j < Nrp; j++) {
      for (i = 0; i < Nrp; i++, enid++) {
        ncid = en[enid];
        nlayers = lr[ncid][1];
        P4EST_ASSERT (nlayers);
        ncolnodes = nlayers * degree + 1;
        layernodecount[ncid] = ncolnodes;
      }
    }
  }

  num_owned = 0;
  num_local = 0;
  for (ncid = 0; ncid < nnodecols; ncid++) {
    num_local += layernodecount[ncid];
    if (ncid < clnodes->owned_count) {
      num_owned += layernodecount[ncid];
    }
  }

  P4EST_VERBOSEF ("p6est_lnodes: %d owned %d local\n", num_owned, num_local);

  if (nnodecols) {
    layernodeoffsets[0] = 0;
    for (ncid = 0; ncid < nnodecols; ncid++) {
      layernodeoffsets[ncid + 1] = layernodeoffsets[ncid] +
        layernodecount[ncid];
    }
  }

  gnum_owned = num_owned;

  owned_offsets = P4EST_ALLOC (p4est_gloidx_t, mpisize + 1);
  global_owned_count = P4EST_ALLOC (p4est_locidx_t, mpisize);

  mpiret = sc_MPI_Allgather (&gnum_owned, 1, P4EST_MPI_GLOIDX,
                             owned_offsets, 1, P4EST_MPI_GLOIDX,
                             p6est->mpicomm);
  SC_CHECK_MPI (mpiret);

  offset = 0;
  for (i = 0; i < mpisize; i++) {
    global_owned_count[i] = (p4est_locidx_t) owned_offsets[i];
    gnum_owned = owned_offsets[i];
    owned_offsets[i] = offset;
    offset += gnum_owned;
  }
  owned_offsets[mpisize] = offset;

  nll = p6est->layers->elem_count;
  nsharers = clnodes->sharers->elem_count;

  lnodes->mpicomm = p6est->mpicomm;
  lnodes->num_local_nodes = num_local;
  lnodes->owned_count = num_owned;
  lnodes->global_offset = owned_offsets[p6est->mpirank];
  lnodes->nonlocal_nodes =
    P4EST_ALLOC (p4est_gloidx_t, num_local - num_owned);
  lnodes->sharers =
    sc_array_new_size (sizeof (p6est_lnodes_rank_t), nsharers);
  lnodes->global_owned_count = global_owned_count;

  lnodes->degree = degree;
  lnodes->vnodes = nperelem;
  lnodes->num_local_elements = nll;
  lnodes->face_code = P4EST_ALLOC (p6est_lnodes_code_t, nll);
  lnodes->element_nodes = P4EST_ALLOC (p4est_locidx_t, nperelem * nll);

  p6est_profile_element_to_node (p6est, profile, layernodeoffsets,
                                 lnodes->element_nodes, lnodes->face_code);

  for (zz = 0; zz < nsharers; zz++) {
    p4est_lnodes_rank_t *crank = p4est_lnodes_rank_array_index
      (clnodes->sharers, zz);
    p6est_lnodes_rank_t *rank = p6est_lnodes_rank_array_index
      (lnodes->sharers, zz);
    size_t              zy;
    size_t              nshared;

    rank->rank = crank->rank;
    sc_array_init (&rank->shared_nodes, sizeof (p4est_locidx_t));
    nshared = crank->shared_nodes.elem_count;

    rank->owned_offset = -1;
    rank->owned_count = 0;
    rank->shared_mine_count = 0;
    rank->shared_mine_offset = -1;
    for (zy = 0; zy < nshared; zy++) {
      p4est_locidx_t      cnid =
        *((p4est_locidx_t *) sc_array_index (&crank->shared_nodes, zy));
      p4est_locidx_t     *lp;
      p4est_locidx_t      nthis, il;
      p4est_locidx_t      old_count = rank->shared_nodes.elem_count;

      nthis = layernodecount[cnid];
      lp =
        (p4est_locidx_t *) sc_array_push_count (&rank->shared_nodes, nthis);

      for (il = 0; il < nthis; il++) {
        lp[il] = layernodeoffsets[cnid] + il;
        if (zy >= (size_t) crank->shared_mine_offset
            && (p4est_locidx_t) zy - crank->shared_mine_offset <
            crank->shared_mine_count) {
          rank->shared_mine_count++;
          if (rank->shared_mine_offset == -1) {
            rank->shared_mine_offset = old_count + il;
          }
        }
        if (cnid >= crank->owned_offset
            && cnid - crank->owned_offset < crank->owned_count) {
          rank->owned_count++;
          if (rank->owned_offset == -1) {
            rank->owned_offset = lp[il];
          }
        }
      }
    }
    if (rank->rank == p6est->mpirank) {
      rank->owned_offset = 0;
      rank->owned_count = num_owned;
    }
  }

  memcpy (layernodecount, layernodeoffsets,
          nnodecols * sizeof (p4est_locidx_t));
  sc_array_init_data (&lnoview, layernodecount, sizeof (p4est_locidx_t),
                      (size_t) nnodecols);

  p4est_lnodes_share_owned (&lnoview, clnodes);

  for (zz = 0; zz < nsharers; zz++) {
    p4est_lnodes_rank_t *crank = p4est_lnodes_rank_array_index
      (clnodes->sharers, zz);

    if (crank->rank == p6est->mpirank) {
      continue;
    }

    for (ncid = crank->owned_offset;
         ncid < crank->owned_offset + crank->owned_count; ncid++) {
      p4est_gloidx_t      owners_offset;
      p4est_locidx_t      nid;

      P4EST_ASSERT (ncid >= clnodes->owned_count);
      owners_offset = owned_offsets[crank->rank] + layernodecount[ncid];
      for (nid = layernodeoffsets[ncid]; nid < layernodeoffsets[ncid + 1];
           nid++) {
        P4EST_ASSERT (nid >= num_owned);
        P4EST_ASSERT (nid < num_local);
        lnodes->nonlocal_nodes[nid - num_owned] = owners_offset++;
      }
    }
  }

  p6est_profile_destroy (profile);

  P4EST_FREE (owned_offsets);
  P4EST_FREE (layernodecount);
  P4EST_FREE (layernodeoffsets);

  p4est_log_indent_pop ();
  P4EST_GLOBAL_PRODUCTION ("Done p6est_lnodes_new\n");

  return lnodes;
}
Beispiel #8
0
void
p8est_quadrant_edge_neighbor_extra (const p4est_quadrant_t * q, p4est_topidx_t
                                    t, int edge, sc_array_t * quads,
                                    sc_array_t * treeids,
                                    p4est_connectivity_t * conn)
{
  p4est_quadrant_t    temp;
  p4est_quadrant_t   *qp;
  p4est_topidx_t     *tp;
  int                 face;
  p8est_edge_info_t   ei;
  p8est_edge_transform_t *et;
  sc_array_t         *eta;
  size_t              etree;

  eta = &ei.edge_transforms;

  P4EST_ASSERT (SC_ARRAY_IS_OWNER (quads));
  P4EST_ASSERT (quads->elem_count == 0);
  P4EST_ASSERT (quads->elem_size == sizeof (p4est_quadrant_t));
  P4EST_ASSERT (SC_ARRAY_IS_OWNER (treeids));
  P4EST_ASSERT (treeids->elem_count == 0);
  P4EST_ASSERT (treeids->elem_size == sizeof (p4est_topidx_t));

  p8est_quadrant_edge_neighbor (q, edge, &temp);
  if (p4est_quadrant_is_inside_root (&temp)) {
    qp = p4est_quadrant_array_push (quads);
    *qp = temp;
    tp = (p4est_topidx_t *) sc_array_push (treeids);
    *tp = t;
    return;
  }

  if (!p8est_quadrant_is_outside_edge (&temp)) {
    qp = p4est_quadrant_array_push (quads);
    tp = (p4est_topidx_t *) sc_array_push (treeids);

    face = p8est_edge_faces[edge][0];
    p4est_quadrant_face_neighbor (q, face, &temp);
    if (p4est_quadrant_is_inside_root (&temp)) {
      face = p8est_edge_faces[edge][1];
      *tp = p8est_quadrant_face_neighbor_extra (&temp, t, face, qp, conn);
      if (*tp == -1) {
        qp = (p4est_quadrant_t *) sc_array_pop (quads);
        tp = (p4est_topidx_t *) sc_array_pop (treeids);
      }
      return;
    }
    face = p8est_edge_faces[edge][1];
    p4est_quadrant_face_neighbor (q, face, &temp);
    P4EST_ASSERT (p4est_quadrant_is_inside_root (&temp));
    face = p8est_edge_faces[edge][0];
    *tp = p8est_quadrant_face_neighbor_extra (&temp, t, face, qp, conn);
    if (*tp == -1) {
      qp = (p4est_quadrant_t *) sc_array_pop (quads);
      tp = (p4est_topidx_t *) sc_array_pop (treeids);
    }
    return;
  }
  sc_array_init (eta, sizeof (p8est_edge_transform_t));
  p8est_find_edge_transform (conn, t, edge, &ei);
  sc_array_resize (quads, eta->elem_count);
  sc_array_resize (treeids, eta->elem_count);
  for (etree = 0; etree < eta->elem_count; etree++) {
    qp = p4est_quadrant_array_index (quads, etree);
    tp = (p4est_topidx_t *) sc_array_index (treeids, etree);
    et = p8est_edge_array_index (eta, etree);
    p8est_quadrant_transform_edge (&temp, qp, &ei, et, 1);
    *tp = et->ntree;
  }
  sc_array_reset (eta);
}
Beispiel #9
0
p4est_mesh_t       *
p4est_mesh_new_ext (p4est_t * p4est, p4est_ghost_t * ghost,
                    int compute_tree_index, int compute_level_lists,
                    p4est_connect_type_t btype)
{
  int                 do_corner = 0;
  int                 do_volume = 0;
  int                 rank;
  p4est_locidx_t      lq, ng;
  p4est_locidx_t      jl;
  p4est_mesh_t       *mesh;

  P4EST_ASSERT (p4est_is_balanced (p4est, btype));

  mesh = P4EST_ALLOC_ZERO (p4est_mesh_t, 1);

  lq = mesh->local_num_quadrants = p4est->local_num_quadrants;
  ng = mesh->ghost_num_quadrants = (p4est_locidx_t) ghost->ghosts.elem_count;

  if (btype == P4EST_CONNECT_FULL) {
    do_corner = 1;
  }
  do_volume = (compute_tree_index || compute_level_lists ? 1 : 0);

  /* Optional map of tree index for each quadrant */
  if (compute_tree_index) {
    mesh->quad_to_tree = P4EST_ALLOC (p4est_topidx_t, lq);
  }

  mesh->ghost_to_proc = P4EST_ALLOC (int, ng);
  mesh->quad_to_quad = P4EST_ALLOC (p4est_locidx_t, P4EST_FACES * lq);
  mesh->quad_to_face = P4EST_ALLOC (int8_t, P4EST_FACES * lq);
  mesh->quad_to_half = sc_array_new (P4EST_HALF * sizeof (p4est_locidx_t));

  /* Optional per-level lists of quadrants */
  if (compute_level_lists) {
    mesh->quad_level = P4EST_ALLOC (sc_array_t, P4EST_QMAXLEVEL + 1);

    for (jl = 0; jl <= P4EST_QMAXLEVEL; ++jl) {
      sc_array_init (mesh->quad_level + jl, sizeof (p4est_locidx_t));
    }
  }

  /* Populate ghost information */
  rank = 0;
  for (jl = 0; jl < ng; ++jl) {
    while (ghost->proc_offsets[rank + 1] <= jl) {
      ++rank;
      P4EST_ASSERT (rank < p4est->mpisize);
    }
    mesh->ghost_to_proc[jl] = rank;
  }

  /* Fill face arrays with default values */
  memset (mesh->quad_to_quad, -1, P4EST_FACES * lq * sizeof (p4est_locidx_t));
  memset (mesh->quad_to_face, -25, P4EST_FACES * lq * sizeof (int8_t));

  if (do_corner) {
    /* Initialize corner information to a consistent state */
    mesh->quad_to_corner = P4EST_ALLOC (p4est_locidx_t, P4EST_CHILDREN * lq);
    memset (mesh->quad_to_corner, -1, P4EST_CHILDREN * lq *
            sizeof (p4est_locidx_t));

    mesh->corner_offset = sc_array_new (sizeof (p4est_locidx_t));
    *(p4est_locidx_t *) sc_array_push (mesh->corner_offset) = 0;

    mesh->corner_quad = sc_array_new (sizeof (p4est_locidx_t));
    mesh->corner_corner = sc_array_new (sizeof (int8_t));
  }

  /* Call the forest iterator to collect face connectivity */
  p4est_iterate (p4est, ghost, mesh,
                 (do_volume ? mesh_iter_volume : NULL), mesh_iter_face,
#ifdef P4_TO_P8
                 NULL,
#endif
                 do_corner ? mesh_iter_corner : NULL);

  return mesh;
}