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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* 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
/* Macros */
#ifdef H5_HAVE_PARALLEL
# define H5FD_MPIO (H5FD_mpio_init())
#else
# define H5FD_MPIO (-1)
#endif /* H5_HAVE_PARALLEL */
#ifdef H5_HAVE_PARALLEL
#if 0 /* delete this eventually */
#define H5FD_GET_MPI_RANK_AND_SIZE(rank,size, f) { \
(rank) = 0; (size) = 1; \
if (H5F_HAS_FEATURE((f), H5FD_FEAT_HAS_MPI)) { \
(rank) = H5F_mpi_get_rank((f)); \
(size) = H5F_mpi_get_size((f)); \
} else { \
int mpi_initialized = 0, mpi_finalized = 0; \
MPI_Initialized(&mpi_initialized); \
MPI_Finalized(&mpi_finalized); \
if (mpi_initialized && !mpi_finalized) { \
MPI_Comm_rank(MPI_COMM_WORLD, &(rank)); \
MPI_Comm_size(MPI_COMM_WORLD, &(size)); \
} \
}}
#define H5FD_GET_MPI_COMM(comm, f) { \
if (H5F_HAS_FEATURE((f), H5FD_FEAT_HAS_MPI)) \
(comm) = H5F_mpi_get_comm((f)); \
else (comm) = MPI_COMM_WORLD; \
}
#endif /* delete this eventually */
/*Turn on H5FDmpio_debug if H5F_DEBUG is on */
#ifdef H5F_DEBUG
#ifndef H5FDmpio_DEBUG
#define H5FDmpio_DEBUG
#endif
#endif
/* Global var whose value comes from environment variable */
/* (Defined in H5FDmpio.c) */
H5_DLLVAR hbool_t H5FD_mpi_opt_types_g;
/* Function prototypes */
#ifdef __cplusplus
extern "C" {
#endif
H5_DLL hid_t H5FD_mpio_init(void);
H5_DLL herr_t H5Pset_fapl_mpio(hid_t fapl_id, MPI_Comm comm, MPI_Info info);
H5_DLL herr_t H5Pget_fapl_mpio(hid_t fapl_id, MPI_Comm *comm/*out*/,
MPI_Info *info/*out*/);
H5_DLL herr_t H5Pset_dxpl_mpio(hid_t dxpl_id, H5FD_mpio_xfer_t xfer_mode);
H5_DLL herr_t H5Pget_dxpl_mpio(hid_t dxpl_id, H5FD_mpio_xfer_t *xfer_mode/*out*/);
H5_DLL herr_t H5Pset_dxpl_mpio_collective_opt(hid_t dxpl_id, H5FD_mpio_collective_opt_t opt_mode);
H5_DLL herr_t H5Pset_dxpl_mpio_chunk_opt(hid_t dxpl_id, H5FD_mpio_chunk_opt_t opt_mode);
H5_DLL herr_t H5Pset_dxpl_mpio_chunk_opt_num(hid_t dxpl_id, unsigned num_chunk_per_proc);
H5_DLL herr_t H5Pset_dxpl_mpio_chunk_opt_ratio(hid_t dxpl_id, unsigned percent_num_proc_per_chunk);
#ifdef __cplusplus
}
#endif
#endif /* H5_HAVE_PARALLEL */
#endif
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