dist_merge.h

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// Copyright (c) 2024 The YAC Authors
//
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef DIST_MERGE_H
#define DIST_MERGE_H
 
#include "yac_mpi_common.h"
 
// The distribute merge is used by the coupling configuration in order to
// synchronise the configuration between all processes.
 
struct yac_dist_merge_vtable {
 
  size_t(*get_pack_size)(void * element, MPI_Comm comm);
 
  void(*pack)(
    void * element, void * buffer, int buffer_size, int * position, MPI_Comm);
 
  void(*unpack)(
    void * buffer, int buffer_size, int * position, void * element,
    MPI_Comm comm);
 
  int(*compare)(void const * a, void const * b);
 
  void(*merge)(void * to, void * from, MPI_Comm comm);
 
  void(*free_data)(void * element);
};
struct yac_dist_merge_vtable {…};
 
void yac_dist_merge(
  size_t * count, void ** array, size_t element_size, MPI_Comm comm,
  struct yac_dist_merge_vtable * vtable, size_t ** idx_old_to_new);
 
#endif // DIST_MERGE_H