1 /*
2 * Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
3 * University Research and Technology
4 * Corporation. All rights reserved.
5 * Copyright (c) 2004-2017 The University of Tennessee and The University
6 * of Tennessee Research Foundation. All rights
7 * reserved.
8 * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
9 * University of Stuttgart. All rights reserved.
10 * Copyright (c) 2004-2005 The Regents of the University of California.
11 * All rights reserved.
12 * Copyright (c) 2008-2018 University of Houston. All rights reserved.
13 * Copyright (c) 2018 Research Organization for Information Science
14 * and Technology (RIST). All rights reserved.
15 * $COPYRIGHT$
16 *
17 * Additional copyrights may follow
18 *
19 * $HEADER$
20 *
21 * These symbols are in a file by themselves to provide nice linker
22 * semantics. Since linkers generally pull in symbols by object fules,
23 * keeping these symbols as the only symbols in this file prevents
24 * utility programs such as "ompi_info" from having to import entire
25 * modules just to query their version and parameters
26 */
27
28 #include "ompi_config.h"
29 #include "mpi.h"
30 #include "ompi/mca/fs/fs.h"
31 #include "ompi/mca/fs/base/base.h"
32 #include "ompi/mca/fs/gpfs/fs_gpfs.h"
33
34 #ifdef HAVE_SYS_STATFS_H
35 #include <sys/statfs.h> /* or <sys/vfs.h> */
36 #endif
37 #ifdef HAVE_SYS_PARAM_H
38 #include <sys/param.h>
39 #endif
40 #ifdef HAVE_SYS_MOUNT_H
41 #include <sys/mount.h>
42 #endif
43 #ifdef HAVE_SYS_STAT_H
44 #include <sys/stat.h>
45 #endif
46
47 #include <sys/ioctl.h>
48
49 /*
50 * *******************************************************************
51 * ************************ actions structure ************************
52 * *******************************************************************
53 */
54 static mca_fs_base_module_1_0_0_t gpfs = {
55 mca_fs_gpfs_module_init, /* initalise after being selected */
56 mca_fs_gpfs_module_finalize, /* close a module on a communicator */
57 mca_fs_gpfs_file_open,
58 mca_fs_base_file_close,
59 mca_fs_base_file_delete,
60 mca_fs_base_file_set_size,
61 mca_fs_base_file_get_size,
62 mca_fs_base_file_sync
63 };
64 /*
65 * *******************************************************************
66 * ************************* structure ends **************************
67 * *******************************************************************
68 */
69
mca_fs_gpfs_component_init_query(bool enable_progress_threads,bool enable_mpi_threads)70 int mca_fs_gpfs_component_init_query(bool enable_progress_threads,
71 bool enable_mpi_threads)
72 {
73 /* Nothing to do */
74
75 return OMPI_SUCCESS;
76 }
77
78 struct mca_fs_base_module_1_0_0_t *
mca_fs_gpfs_component_file_query(ompio_file_t * fh,int * priority)79 mca_fs_gpfs_component_file_query (ompio_file_t *fh, int *priority)
80 {
81 char *tmp;
82
83 /* The code in this function is based on the ADIO FS selection in ROMIO
84 * Copyright (C) 1997 University of Chicago.
85 * See COPYRIGHT notice in top-level directory.
86 */
87
88 *priority = mca_fs_gpfs_priority;
89
90 tmp = strchr (fh->f_filename, ':');
91 if (!tmp) {
92 if (OMPIO_ROOT == fh->f_rank) {
93 fh->f_fstype = mca_fs_base_get_fstype ( (char *) fh->f_filename );
94 }
95 if (MPI_COMM_NULL != fh->f_comm) {
96 fh->f_comm->c_coll->coll_bcast (&(fh->f_fstype),
97 1,
98 MPI_INT,
99 OMPIO_ROOT,
100 fh->f_comm,
101 fh->f_comm->c_coll->coll_bcast_module);
102 }
103 }
104 else {
105 if (!strncmp(fh->f_filename, "gpfs:", 5) ||
106 !strncmp(fh->f_filename, "GPFS:", 5)) {
107 fh->f_fstype = GPFS;
108 }
109 }
110
111 if (GPFS == fh->f_fstype) {
112 if (*priority < 50) {
113 *priority = 50;
114 return &gpfs;
115 }
116 }
117
118 return NULL;
119 }
120
mca_fs_gpfs_component_file_unquery(ompio_file_t * file)121 int mca_fs_gpfs_component_file_unquery (ompio_file_t *file)
122 {
123 /* This function might be needed for some purposes later. for now it
124 * does not have anything to do since there are no steps which need
125 * to be undone if this module is not selected */
126
127 return OMPI_SUCCESS;
128 }
129
mca_fs_gpfs_module_init(ompio_file_t * file)130 int mca_fs_gpfs_module_init (ompio_file_t *file)
131 {
132 /* Make sure the file type is not overwritten by the last queried
133 * component */
134 file->f_fstype = GPFS;
135 return OMPI_SUCCESS;
136 }
137
138
mca_fs_gpfs_module_finalize(ompio_file_t * file)139 int mca_fs_gpfs_module_finalize (ompio_file_t *file)
140 {
141 return OMPI_SUCCESS;
142 }
143