xt_mpi.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.
 *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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 */
 
#ifndef XT_MPI_H
#define XT_MPI_H
 
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
 
#include <mpi.h>
 
#include <xt/xt_core.h>


#define xt_mpi_call(call, comm)                 \
  do {                                          \
    int error_code = (call);                    \
    if (error_code != MPI_SUCCESS)              \
      xt_mpi_error(error_code, comm);           \
  } while(0)

void xt_mpi_error(int error_code, MPI_Comm comm);

MPI_Datatype xt_mpi_generate_datatype(int const * displacements, int count,
                                      MPI_Datatype old_type, MPI_Comm comm);

MPI_Datatype xt_mpi_generate_datatype_block(const int *displacements,
                                            const int *blocklengths,
                                            int count, MPI_Datatype old_type,
                                            MPI_Comm comm);

MPI_Datatype xt_mpi_generate_datatype_stripe(const struct Xt_offset_ext *v,
                                             int count, MPI_Datatype old_type,
                                             MPI_Comm comm);
 

MPI_Datatype
xt_mpi_generate_datatype_astripe(const struct Xt_aoffset_ext *v,
                                 int count, MPI_Datatype old_type,
                                 MPI_Comm comm);

void
xt_mpi_comm_mark_exclusive(MPI_Comm comm);
 
#endif // XT_MPI_H
 
/*
 * Local Variables:
 * c-basic-offset: 2
 * coding: utf-8
 * indent-tabs-mode: nil
 * show-trailing-whitespace: t
 * require-trailing-newline: t
 * End:
 */