map.h

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/*
 * @file map.h
 *
 * @copyright Copyright (C) 2024 Enrico Degregori <enrico.degregori@gmail.com>
 *
 * @author Enrico Degregori <enrico.degregori@gmail.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 
 * 3. Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#ifndef MAP_H
#define MAP_H
 
#include "mpi.h"
 
#include "src/core/indices/idxlist.h"
 
struct t_map_exch_per_rank {
    int exch_rank;
};
typedef struct t_map_exch_per_rank t_map_exch_per_rank;
 
struct t_map_exch {
    int count;
    t_map_exch_per_rank **exch;
    int buffer_size;
    int *buffer_idxlist;
    int *buffer_idxlist_gpu;
    int *buffer_offset;
};
typedef struct t_map_exch t_map_exch;
 
struct t_map {
    MPI_Comm comm;
    t_map_exch *exch_send;
    t_map_exch *exch_recv;
};
typedef struct t_map t_map;
 
t_map * new_map(t_idxlist *src_idxlist ,
                t_idxlist *dst_idxlist ,
                int        stride      ,
                MPI_Comm   comm        );
 
t_map * extend_map_3d(t_map *map2d  ,
                      int    nlevels);
 
void delete_map(t_map *map);
 
#endif