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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: Quincey Koziol <koziol@ncsa.uiuc.edu>
* Friday, January 30, 2004
*
* Purpose: The public header file for common items for all MPI VFL drivers
*/
#ifndef H5FDmpi_H
#define H5FDmpi_H
/* 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;
#ifdef H5_HAVE_PARALLEL
/* Sub-class the H5FD_class_t to add more specific functions for MPI-based VFDs */
typedef struct H5FD_class_mpi_t {
H5FD_class_t super; /* Superclass information & methods */
int (*get_rank)(const H5FD_t *file); /* Get the MPI rank of a process */
int (*get_size)(const H5FD_t *file); /* Get the MPI size of a communicator */
MPI_Comm (*get_comm)(const H5FD_t *file); /* Get the communicator for a file */
} H5FD_class_mpi_t;
#endif /* H5_HAVE_PARALLEL */
/* Include all the MPI VFL headers */
#include "H5FDfphdf5.h" /* Flexible PHDF5 file driver */
#include "H5FDmpio.h" /* MPI I/O file driver */
#include "H5FDmpiposix.h" /* MPI/posix I/O file driver */
/* Macros */
/* Single macro to check for all file drivers that use MPI */
#define IS_H5FD_MPI(file) \
(IS_H5FD_MPIO(file) || IS_H5FD_MPIPOSIX(file) || IS_H5FD_FPHDF5(file))
#ifdef H5_HAVE_PARALLEL
/* ======== Temporary data transfer properties ======== */
/* Definitions for memory MPI type property */
#define H5FD_MPI_XFER_MEM_MPI_TYPE_NAME "H5FD_mpi_mem_mpi_type"
#define H5FD_MPI_XFER_MEM_MPI_TYPE_SIZE sizeof(MPI_Datatype)
/* Definitions for file MPI type property */
#define H5FD_MPI_XFER_FILE_MPI_TYPE_NAME "H5FD_mpi_file_mpi_type"
#define H5FD_MPI_XFER_FILE_MPI_TYPE_SIZE sizeof(MPI_Datatype)
/*
* The view is set to this value
*/
extern char H5FD_mpi_native_g[];
/* Function prototypes */
#ifdef __cplusplus
extern "C" {
#endif
/* General routines */
H5_DLL haddr_t H5FD_mpi_MPIOff_to_haddr(MPI_Offset mpi_off);
H5_DLL herr_t H5FD_mpi_haddr_to_MPIOff(haddr_t addr, MPI_Offset *mpi_off/*out*/);
H5_DLL herr_t H5FD_mpi_comm_info_dup(MPI_Comm comm, MPI_Info info,
MPI_Comm *comm_new, MPI_Info *info_new);
H5_DLL herr_t H5FD_mpi_comm_info_free(MPI_Comm *comm, MPI_Info *info);
#ifdef NOT_YET
H5_DLL herr_t H5FD_mpio_wait_for_left_neighbor(H5FD_t *file);
H5_DLL herr_t H5FD_mpio_signal_right_neighbor(H5FD_t *file);
#endif /* NOT_YET */
H5_DLL herr_t H5FD_mpi_setup_collective(hid_t dxpl_id, MPI_Datatype btype,
MPI_Datatype ftype);
H5_DLL herr_t H5FD_mpi_teardown_collective(hid_t dxpl_id);
/* Driver specific methods */
H5_DLL int H5FD_mpi_get_rank(const H5FD_t *file);
H5_DLL int H5FD_mpi_get_size(const H5FD_t *file);
H5_DLL MPI_Comm H5FD_mpi_get_comm(const H5FD_t *_file);
#ifdef __cplusplus
}
#endif
#endif /* H5_HAVE_PARALLEL */
#endif /* H5FDmpi_H */
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