xt_mpi_ddt_cache.h

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/*
 * Keywords:
 * Maintainer: Jörg Behrens <behrens@dkrz.de>
 *             Moritz Hanke <hanke@dkrz.de>
 *             Thomas Jahns <jahns@dkrz.de>
 * URL: https://dkrz-sw.gitlab-pages.dkrz.de/yaxt/
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are  permitted provided that the following conditions are
 * met:
 *
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 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.
 *
 * Neither the name of the DKRZ GmbH 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 OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#ifndef XT_MPI_DDT_CACHE_H
#define XT_MPI_DDT_CACHE_H
 
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
 
#include <mpi.h>
 
#include "core/ppm_visibility.h"
 
struct Xt_mpiddt_list_entry;
 
struct Xt_mpiddt_list {
  struct Xt_mpiddt_list_entry *entries;
  MPI_Datatype *struct_dt;      /* points to concatenation of arrays of the datatypes
                                 * used for each struct */
  size_t num_entries, size_entries;
};
 
#define Xt_mpiddt_empty_list ((struct Xt_mpiddt_list){NULL,NULL,0,0})
PPM_DSO_INTERNAL MPI_Datatype
Xt_mpi_ddt_cache_acquire_contiguous(
  struct Xt_mpiddt_list *ddt_list,
  int count, MPI_Datatype oldtype,
  MPI_Comm comm);
 
PPM_DSO_INTERNAL MPI_Datatype
Xt_mpi_ddt_cache_acquire_vector(
  struct Xt_mpiddt_list *ddt_list,
  int count, int blocklength, int stride, MPI_Datatype oldtype,
  MPI_Comm comm);
 
PPM_DSO_INTERNAL MPI_Datatype
Xt_mpi_ddt_cache_acquire_hvector(
  struct Xt_mpiddt_list *ddt_list,
  int count, int blocklength, MPI_Aint stride, MPI_Datatype oldtype,
  MPI_Comm comm);
 
PPM_DSO_INTERNAL MPI_Datatype
Xt_mpi_ddt_cache_acquire_indexed_block(
  struct Xt_mpiddt_list *ddt_list,
  int count, int blocklength, int disp[count], MPI_Datatype oldtype,
  MPI_Comm comm);
 
PPM_DSO_INTERNAL MPI_Datatype
Xt_mpi_ddt_cache_acquire_hindexed_block(
  struct Xt_mpiddt_list *ddt_list,
  int count, int blocklength, MPI_Aint disp[count], MPI_Datatype oldtype,
  MPI_Comm comm);
 
PPM_DSO_INTERNAL MPI_Datatype
Xt_mpi_ddt_cache_acquire_indexed(
  struct Xt_mpiddt_list *ddt_list,
  int count, int blocklength[count], int disp[count], MPI_Datatype oldtype,
  MPI_Comm comm);
 
PPM_DSO_INTERNAL MPI_Datatype
Xt_mpi_ddt_cache_acquire_hindexed(
  struct Xt_mpiddt_list *ddt_list,
  int count, int blocklength[count], MPI_Aint disp[count], MPI_Datatype oldtype,
  MPI_Comm comm);
 
PPM_DSO_INTERNAL MPI_Datatype
Xt_mpi_ddt_cache_acquire_struct(
  struct Xt_mpiddt_list *ddt_list,
  int count, int blocklength[count], MPI_Aint disp[count],
  MPI_Datatype oldtype[count], MPI_Comm comm);
 
 
PPM_DSO_INTERNAL void
Xt_mpi_ddt_cache_entry_release(struct Xt_mpiddt_list *ddt_list,
                               MPI_Datatype *dt, MPI_Comm comm);
 
PPM_DSO_INTERNAL void
Xt_mpi_ddt_cache_free(struct Xt_mpiddt_list *ddt_list,
                      MPI_Comm comm);
 
#include "xt/xt_redist.h"
 
PPM_DSO_INTERNAL void
Xt_mpi_ddt_cache_check_retention(struct Xt_mpiddt_list *ddt_list,
                                 size_t nmsg,
                                 struct Xt_redist_msg msgs[nmsg]);
 
 
#endif
 
/*
 * Local Variables:
 * c-basic-offset: 2
 * coding: utf-8
 * indent-tabs-mode: nil
 * show-trailing-whitespace: t
 * require-trailing-newline: t
 * End:
 */