t8_cmesh_offset.h

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/*
  This file is part of t8code.
  t8code is a C library to manage a collection (a forest) of multiple
  connected adaptive space-trees of general element classes in parallel.
 
  Copyright (C) 2015 the developers
 
  t8code is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.
 
  t8code is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
 
  You should have received a copy of the GNU General Public License
  along with t8code; if not, write to the Free Software Foundation, Inc.,
  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
 
#ifndef T8_CMESH_OFFSET_H
#define T8_CMESH_OFFSET_H
 
#include <t8.h>
#include <t8_cmesh.h>
 
T8_EXTERN_C_BEGIN ();
 
t8_gloidx_t         t8_offset_first (int proc, const t8_gloidx_t *offset);
 
t8_gloidx_t
        t8_offset_first_tree_to_entry (t8_gloidx_t first_tree, int shared);
 
t8_gloidx_t         t8_offset_num_trees (int proc, const t8_gloidx_t *offset);
 
t8_gloidx_t         t8_offset_last (int proc, const t8_gloidx_t *offset);
 
int                 t8_offset_empty (int proc, const t8_gloidx_t *offset);
 
int                 t8_offset_next_nonempty_rank (int rank, int mpisize,
                                                  const t8_gloidx_t *offset);
 
#if T8_ENABLE_DEBUG
int                 t8_offset_consistent (int mpisize,
                                          const t8_shmem_array_t offset_shmem,
                                          t8_gloidx_t num_trees);
#endif
 
int                 t8_offset_in_range (t8_gloidx_t tree_id, int proc,
                                        const t8_gloidx_t *offset);
 
int                 t8_offset_any_owner_of_tree (int mpisize,
                                                 t8_gloidx_t gtree,
                                                 const t8_gloidx_t *offset);
 
int                 t8_offset_first_owner_of_tree (int mpisize,
                                                   t8_gloidx_t gtree,
                                                   const t8_gloidx_t *offset,
                                                   int *some_owner);
 
int                 t8_offset_last_owner_of_tree (int mpisize,
                                                  t8_gloidx_t gtree,
                                                  const t8_gloidx_t *offset,
                                                  int *some_owner);
 
int                 t8_offset_next_owner_of_tree (int mpisize,
                                                  t8_gloidx_t gtree,
                                                  const t8_gloidx_t *offset,
                                                  int current_owner);
 
int                 t8_offset_prev_owner_of_tree (int mpisize,
                                                  t8_gloidx_t gtree,
                                                  const t8_gloidx_t *offset,
                                                  int current_owner);
 
void                t8_offset_all_owners_of_tree (int mpisize,
                                                  t8_gloidx_t gtree,
                                                  const t8_gloidx_t *offset,
                                                  sc_array_t *owners);
 
int                 t8_offset_nosend (int proc, int mpisize,
                                      const t8_gloidx_t *offset_from,
                                      const t8_gloidx_t *offset_to);
 
int                 t8_offset_sendsto (int proca, int procb,
                                       const t8_gloidx_t *t8_offset_from,
                                       const t8_gloidx_t *t8_offset_to);
 
int                 t8_offset_sendstree (int proc_send, int proc_to,
                                         t8_gloidx_t gtree,
                                         const t8_gloidx_t *offset_from,
                                         const t8_gloidx_t *offset_to);
 
int                 t8_offset_range_send (int start, int end, int mpirank,
                                          const t8_gloidx_t *offset_from,
                                          const t8_gloidx_t *offset_to);
 
void                t8_offset_print (t8_shmem_array_t offset,
                                     sc_MPI_Comm comm);
 
T8_EXTERN_C_END ();
 
#endif /* !T8_CMESH_OFFSET_H */