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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Programmer: Robb Matzke <matzke@llnl.gov>
* Monday, August 2, 1999
*
* Purpose: The public header file for the mpio driver.
*/
#ifndef H5FDmpio_H
#define H5FDmpio_H
#include "H5FDpublic.h"
#include "H5Ipublic.h"
#ifdef H5_HAVE_PARALLEL
# define H5FD_MPIO (H5FD_mpio_init())
#else
# define H5FD_MPIO (-1)
#endif
/* Type of I/O for data transfer properties */
typedef enum H5FD_mpio_xfer_t {
H5FD_MPIO_INDEPENDENT = 0, /*zero is the default*/
H5FD_MPIO_COLLECTIVE
} H5FD_mpio_xfer_t;
/*
* MPIO-specific data transfer properties. This struct is here only because
* we need it in special case code throughout the library. Applications
* please use H5Pset_dxpl_mpio() instead.
*/
typedef struct H5FD_mpio_dxpl_t {
H5FD_mpio_xfer_t xfer_mode; /*collective or independent I/O */
} H5FD_mpio_dxpl_t;
#ifdef H5_HAVE_PARALLEL
/* Macros */
/*Turn on H5FDmpio_debug if H5F_DEBUG is on */
#ifdef H5F_DEBUG
#ifndef H5FDmpio_DEBUG
#define H5FDmpio_DEBUG
#endif
#endif
#define IS_H5FD_MPIO(f) /* (H5F_t *f) */ \
(H5FD_MPIO==H5F_get_driver_id(f))
/* Function prototypes */
#ifdef __cplusplus
extern "C" {
#endif
__DLL__ hid_t H5FD_mpio_init(void);
__DLL__ herr_t H5Pset_fapl_mpio(hid_t fapl_id, MPI_Comm comm, MPI_Info info);
__DLL__ herr_t H5Pget_fapl_mpio(hid_t fapl_id, MPI_Comm *comm/*out*/,
MPI_Info *info/*out*/);
__DLL__ herr_t H5Pset_dxpl_mpio(hid_t dxpl_id, H5FD_mpio_xfer_t xfer_mode);
__DLL__ herr_t H5Pget_dxpl_mpio(hid_t dxpl_id, H5FD_mpio_xfer_t *xfer_mode/*out*/);
__DLL__ htri_t H5FD_mpio_tas_allsame(H5FD_t *_file, hbool_t newval);
__DLL__ MPI_Comm H5FD_mpio_communicator(H5FD_t *_file);
__DLL__ herr_t H5FD_mpio_setup(hid_t dxpl_id, MPI_Datatype btype,
MPI_Datatype ftype, unsigned use_view);
__DLL__ herr_t H5FD_mpio_teardown(hid_t dxpl_id);
__DLL__ herr_t H5FD_mpio_wait_for_left_neighbor(H5FD_t *file);
__DLL__ herr_t H5FD_mpio_signal_right_neighbor(H5FD_t *file);
__DLL__ herr_t H5FD_mpio_closing(H5FD_t *file);
__DLL__ int H5FD_mpio_mpi_rank(H5FD_t *_file);
__DLL__ int H5FD_mpio_mpi_size(H5FD_t *_file);
#ifdef __cplusplus
}
#endif
#endif /*H5_HAVE_PARALLEL*/
#endif
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