1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
2  * Copyright by The HDF Group.                                               *
3  * Copyright by the Board of Trustees of the University of Illinois.         *
4  * All rights reserved.                                                      *
5  *                                                                           *
6  * This file is part of HDF5.  The full HDF5 copyright notice, including     *
7  * terms governing use, modification, and redistribution, is contained in    *
8  * the files COPYING and Copyright.html.  COPYING can be found at the root   *
9  * of the source code distribution tree; Copyright.html can be found at the  *
10  * root level of an installed copy of the electronic HDF5 document set and   *
11  * is linked from the top-level documents page.  It can also be found at     *
12  * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
13  * access to either file, you may request a copy from help@hdfgroup.org.     *
14  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
15 
16 /*
17  * Programmer:  Robb Matzke <matzke@llnl.gov>
18  *              Monday, August  2, 1999
19  *
20  * Purpose:	The public header file for the mpio driver.
21  */
22 #ifndef H5FDmpio_H
23 #define H5FDmpio_H
24 
25 /* Macros */
26 
27 #ifdef H5_HAVE_PARALLEL
28 #   define H5FD_MPIO	(H5FD_mpio_init())
29 #else
30 #   define H5FD_MPIO	(-1)
31 #endif /* H5_HAVE_PARALLEL */
32 
33 #ifdef H5_HAVE_PARALLEL
34 /*Turn on H5FDmpio_debug if H5F_DEBUG is on */
35 #ifdef H5F_DEBUG
36 #ifndef H5FDmpio_DEBUG
37 #define H5FDmpio_DEBUG
38 #endif
39 #endif
40 
41 /* Global var whose value comes from environment variable */
42 /* (Defined in H5FDmpio.c) */
43 H5_DLLVAR hbool_t H5FD_mpi_opt_types_g;
44 
45 /* Function prototypes */
46 #ifdef __cplusplus
47 extern "C" {
48 #endif
49 H5_DLL hid_t H5FD_mpio_init(void);
50 H5_DLL void H5FD_mpio_term(void);
51 H5_DLL herr_t H5Pset_fapl_mpio(hid_t fapl_id, MPI_Comm comm, MPI_Info info);
52 H5_DLL herr_t H5Pget_fapl_mpio(hid_t fapl_id, MPI_Comm *comm/*out*/,
53 			MPI_Info *info/*out*/);
54 H5_DLL herr_t H5Pset_dxpl_mpio(hid_t dxpl_id, H5FD_mpio_xfer_t xfer_mode);
55 H5_DLL herr_t H5Pget_dxpl_mpio(hid_t dxpl_id, H5FD_mpio_xfer_t *xfer_mode/*out*/);
56 H5_DLL herr_t H5Pset_dxpl_mpio_collective_opt(hid_t dxpl_id, H5FD_mpio_collective_opt_t opt_mode);
57 H5_DLL herr_t H5Pset_dxpl_mpio_chunk_opt(hid_t dxpl_id, H5FD_mpio_chunk_opt_t opt_mode);
58 H5_DLL herr_t H5Pset_dxpl_mpio_chunk_opt_num(hid_t dxpl_id, unsigned num_chunk_per_proc);
59 H5_DLL herr_t H5Pset_dxpl_mpio_chunk_opt_ratio(hid_t dxpl_id, unsigned percent_num_proc_per_chunk);
60 #ifdef __cplusplus
61 }
62 #endif
63 
64 #endif /* H5_HAVE_PARALLEL */
65 
66 #endif
67