serial_io.c

/*******************************************************************************
 * This file is part of SWIFT.
 * Coypright (c) 2012 Pedro Gonnet (pedro.gonnet@durham.ac.uk),
 *                    Matthieu Schaller (matthieu.schaller@durham.ac.uk).
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 ******************************************************************************/

/* Config parameters. */
#include "../config.h"

#if defined(HAVE_HDF5) && defined(WITH_MPI) && !defined(HAVE_PARALLEL_HDF5)

/* Some standard headers. */
#include <hdf5.h>
#include <math.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

/* MPI headers. */
#ifdef WITH_MPI
#include <mpi.h>
#endif

/* This object's header. */
#include "serial_io.h"

/* Local includes. */
#include "common_io.h"
#include "error.h"

/*-----------------------------------------------------------------------------
 * Routines reading an IC file
 *-----------------------------------------------------------------------------*/

/**
 * @brief Reads a data array from a given HDF5 group.
 *
 * @param grp The group from which to read.
 * @param name The name of the array to read.
 * @param type The #DATA_TYPE of the attribute.
 * @param N The number of particles.
 * @param dim The dimension of the data (1 for scalar, 3 for vector)
 * @param part_c A (char*) pointer on the first occurence of the field of
 *interest in the parts array
 * @param importance If COMPULSORY, the data must be present in the IC file. If
 *OPTIONAL, the array will be zeroed when the data is not present.
 *
 * @todo A better version using HDF5 hyperslabs to read the file directly into
 *the part array
 * will be written once the strucutres have been stabilized.
 *
 * Calls #error() if an error occurs.
 */
void readArrayBackEnd(hid_t grp, char* name, enum DATA_TYPE type, int N,
                      int dim, long long N_total, long long offset,