xt_config_internal.h

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/*
 * 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,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
 
#include <stdint.h>
 
#include <mpi.h>
 
#include "core/ppm_visibility.h"
#include "xt/xt_redist.h"
#include "xt/xt_config.h"
#include "xt/sort_common.h"
#include "xt/xt_xmap_dist_dir_bucket_gen.h"
#include "xt_exchanger.h"
 
enum xt_config_flags {
  exch_no_dt_dup = 1 << 0,
  xt_mthread_mode_bit_ofs = 1,
  xt_mthread_mode_num_bits = 1,
  xt_mthread_mode_mask = 1 << xt_mthread_mode_bit_ofs,
  xt_force_nosort_bit_ofs = xt_mthread_mode_bit_ofs + xt_mthread_mode_num_bits,
  /* if set, rather return unsorted data than incur costly data duplication */
  xt_force_nosort = 1 << xt_force_nosort_bit_ofs,
  xt_force_dist_dir_striping_bit_ofs = xt_force_nosort_bit_ofs + 1,
  xt_force_dist_dir_striping_num_bits = 2,
  xt_force_dist_dir_striping_mask = 3 << xt_force_dist_dir_striping_bit_ofs,
};
 
struct Xt_sort_algo_funcptr
{
  void (*sort_int)(int *a, size_t n);
  void (*sort_xt_int)(Xt_int *a, size_t n);
  void (*sort_index)(Xt_int *restrict a, int n, int *restrict idx,
                     int reset_index);
  void (*sort_idxpos)(idxpos_type *v, size_t n);
  void (*sort_xt_int_permutation)(Xt_int a[], size_t n, int permutation[]);
  void (*sort_int_permutation)(int a[], size_t n, int permutation[]);
};
 
 
struct Xt_config_ {
  Xt_exchanger_new exchanger_new;
  const struct Xt_sort_algo_funcptr *sort_funcs;
  const struct Xt_xmdd_bucket_gen_ *xmdd_bucket_gen;
  void *exchanger_team_share;
  int idxv_cnv_size;
  uint32_t flags;
};
 
extern struct Xt_config_ xt_default_config;
 
PPM_DSO_INTERNAL void
xt_config_defaults_init(void);
 
int
xt_sort_algo_id_by_name(const char *name);
 
PPM_DSO_INTERNAL Xt_exchanger_new
xt_config_get_exchange_new_by_comm(Xt_config config, MPI_Comm comm);
 
#define XT_CONFIG_GET_FORCE_NOSORT(config) \
  (((config)->flags & xt_force_nosort) != UINT32_C(0))
#define XT_CONFIG_SET_FORCE_NOSORT(config) \
  do { (config)->flags |= (uint32_t)xt_force_nosort; } while (0)
#define XT_CONFIG_UNSET_FORCE_NOSORT(config) \
  do { (config)->flags &= ~(uint32_t)xt_force_nosort; } while (0)
 
#define XT_CONFIG_GET_DIST_DIR_STRIPING(config) \
  (((config)->flags >> xt_force_dist_dir_striping_bit_ofs) & 3U)
#define XT_CONFIG_SET_DIST_DIR_STRIPING(config, v)                      \
  do { (config)->flags                                                  \
      = ((config)->flags & ~(uint32_t)xt_force_dist_dir_striping_mask)  \
      | (uint32_t)((v&3) << xt_force_dist_dir_striping_bit_ofs); }      \
  while (0)
 
#define XT_CONFIG_BUCKET_DESTROY(config, bucket_gen_state)         \
  do { if ((config)->xmdd_bucket_gen->destroy)                  \
      (config)->xmdd_bucket_gen->destroy((bucket_gen_state));   \
  } while (0)
/*
 * Local Variables:
 * c-basic-offset: 2
 * coding: utf-8
 * indent-tabs-mode: nil
 * show-trailing-whitespace: t
 * require-trailing-newline: t
 * End:
 */