parallel_io.c

/*******************************************************************************
 * This file is part of SWIFT.
 * Copyright (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 <mpi.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

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

/* Local includes. */
#include "chemistry_io.h"
#include "common_io.h"
#include "cooling_io.h"
#include "dimension.h"
#include "engine.h"
#include "error.h"
#include "gravity_io.h"
#include "gravity_properties.h"
#include "hydro_io.h"
#include "hydro_properties.h"
#include "io_properties.h"
#include "kernel_hydro.h"
#include "part.h"
#include "part_type.h"
#include "stars_io.h"
#include "tracers_io.h"
#include "units.h"
#include "xmf.h"

/* The current limit of ROMIO (the underlying MPI-IO layer) is 2GB */
#define HDF5_PARALLEL_IO_MAX_BYTES 2147000000LL

/* Are we timing the i/o? */
//#define IO_SPEED_MEASUREMENT

/**
 * @brief Reads a chunk of data from an open HDF5 dataset
 *
 * @param h_data The HDF5 dataset to write to.
 * @param h_plist_id the parallel HDF5 properties.
 * @param props The #io_props of the field to read.