1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
|
/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "ad_panfs.h"
#include <string.h>
#include <pan_fs_client_cw_mode.h>
#define TEMP_BUFFER_SIZE 64
void ADIOI_PANFS_Open(ADIO_File fd, int *error_code)
{
char *value;
int perm, old_mask, amode, flag;
static char myname[] = "ADIOI_PANFS_OPEN";
if (fd->perm == ADIO_PERM_NULL) {
old_mask = umask(022);
umask(old_mask);
perm = ~old_mask & 0666;
} else
perm = fd->perm;
amode = 0;
if (fd->access_mode & ADIO_CREATE) {
pan_fs_client_layout_agg_type_t layout_type = PAN_FS_CLIENT_LAYOUT_TYPE__DEFAULT;
unsigned long int layout_stripe_unit = 0;
unsigned long int layout_parity_stripe_width = 0;
unsigned long int layout_parity_stripe_depth = 0;
unsigned long int layout_total_num_comps = 0;
pan_fs_client_layout_visit_t layout_visit_policy = PAN_FS_CLIENT_LAYOUT_VISIT__ROUND_ROBIN;
int myrank;
MPI_Comm_rank(fd->comm, &myrank);
*error_code = MPI_SUCCESS;
value = (char *) ADIOI_Malloc((MPI_MAX_INFO_VAL + 1) * sizeof(char));
ADIOI_Info_get(fd->info, "panfs_layout_type", MPI_MAX_INFO_VAL, value, &flag);
if (flag) {
layout_type = strtoul(value, NULL, 10);
}
ADIOI_Info_get(fd->info, "panfs_layout_stripe_unit", MPI_MAX_INFO_VAL, value, &flag);
if (flag) {
layout_stripe_unit = strtoul(value, NULL, 10);
}
ADIOI_Info_get(fd->info, "panfs_layout_total_num_comps", MPI_MAX_INFO_VAL, value, &flag);
if (flag) {
layout_total_num_comps = strtoul(value, NULL, 10);
}
ADIOI_Info_get(fd->info, "panfs_layout_parity_stripe_width", MPI_MAX_INFO_VAL,
value, &flag);
if (flag) {
layout_parity_stripe_width = strtoul(value, NULL, 10);
}
ADIOI_Info_get(fd->info, "panfs_layout_parity_stripe_depth", MPI_MAX_INFO_VAL,
value, &flag);
if (flag) {
layout_parity_stripe_depth = strtoul(value, NULL, 10);
}
ADIOI_Info_get(fd->info, "panfs_layout_visit_policy", MPI_MAX_INFO_VAL, value, &flag);
if (flag) {
layout_visit_policy = strtoul(value, NULL, 10);
}
ADIOI_Free(value);
amode = amode | O_CREAT;
/* Check for valid set of hints */
if ((layout_type < PAN_FS_CLIENT_LAYOUT_TYPE__DEFAULT) ||
(layout_type > PAN_FS_CLIENT_LAYOUT_TYPE__RAID10)) {
FPRINTF(stderr, "%s: panfs_layout_type is not a valid value: %u.\n", myname,
layout_type);
MPI_Abort(MPI_COMM_WORLD, 1);
}
if ((layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID0) &&
((layout_stripe_unit == 0) || (layout_total_num_comps == 0))) {
if (layout_stripe_unit == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_stripe_unit hint which is necessary to specify a valid RAID0 layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
if (layout_total_num_comps == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_total_num_comps hint which is necessary to specify a valid RAID0 layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
MPI_Abort(MPI_COMM_WORLD, 1);
}
if (layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID1_5_PARITY_STRIPE) {
if ((layout_stripe_unit == 0) ||
(layout_parity_stripe_width == 0) ||
(layout_parity_stripe_depth == 0) || (layout_total_num_comps == 0)) {
if (layout_stripe_unit == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_stripe_unit hint which is necessary to specify a valid RAID5 parity stripe layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
if (layout_total_num_comps == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_total_num_comps hint which is necessary to specify a valid RAID5 parity stripe layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
if (layout_parity_stripe_width == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_parity_stripe_width hint which is necessary to specify a valid RAID5 parity stripe layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
if (layout_parity_stripe_depth == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_parity_stripe_depth hint which is necessary to specify a valid RAID5 parity stripe layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
MPI_Abort(MPI_COMM_WORLD, 1);
}
if ((layout_visit_policy < PAN_FS_CLIENT_LAYOUT_VISIT__ROUND_ROBIN) ||
(layout_visit_policy > PAN_FS_CLIENT_LAYOUT_VISIT__ROUND_ROBIN_WITH_HASHED_OFFSET))
{
FPRINTF(stderr, "%s: panfs_layout_visit_policy is not a valid value: %u.\n", myname,
layout_visit_policy);
MPI_Abort(MPI_COMM_WORLD, 1);
}
}
if (layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID10) {
if ((layout_stripe_unit == 0) || (layout_total_num_comps == 0)) {
if (layout_stripe_unit == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_stripe_unit hint which is necessary to specify a valid RAID10 layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
if (layout_total_num_comps == 0) {
FPRINTF(stderr,
"%s: MPI_Info does not contain the panfs_layout_total_num_comps hint which is necessary to specify a valid RAID10 layout to the PAN_FS_CLIENT_LAYOUT_CREATE_FILE ioctl.\n",
myname);
}
MPI_Abort(MPI_COMM_WORLD, 1);
}
if ((layout_visit_policy < PAN_FS_CLIENT_LAYOUT_VISIT__ROUND_ROBIN) ||
(layout_visit_policy > PAN_FS_CLIENT_LAYOUT_VISIT__ROUND_ROBIN_WITH_HASHED_OFFSET))
{
FPRINTF(stderr, "%s: panfs_layout_visit_policy is not a valid value: %u.\n", myname,
layout_visit_policy);
MPI_Abort(MPI_COMM_WORLD, 1);
}
}
/* Create the file via ioctl() or open(). ADIOI_PANFS_Open's caller
* already optimizes performance by only calling this function with
* ADIO_CREATE on rank 0. Therefore, we don't need to worry about
* implementing that optimization here. */
if ((layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID0) ||
(layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID1_5_PARITY_STRIPE)
|| (layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID10)) {
pan_fs_client_layout_create_args_t file_create_args;
int fd_dir;
char *slash;
struct stat stat_buf;
int err;
char *path;
/* Check that the file does not exist before
* trying to create it. The ioctl itself should
* be able to handle this condition. Currently,
* the ioctl will return successfully if the file
* has been previously created. Filed bug 33862
* to track the problem.
*/
err = stat(fd->filename, &stat_buf);
if ((err == -1) && (errno != ENOENT)) {
FPRINTF(stderr, "%s: Unexpected I/O Error calling stat() on PanFS file: %s.\n",
myname, strerror(errno));
MPI_Abort(MPI_COMM_WORLD, 1);
} else if (err == 0) {
FPRINTF(stderr,
"%s: Cannot create PanFS file with ioctl when file already exists.\n",
myname);
MPI_Abort(MPI_COMM_WORLD, 1);
} else {
/* (err == -1) && (errno == ENOENT) */
/* File does not exist */
path = ADIOI_Strdup(fd->filename);
slash = strrchr(path, '/');
if (!slash)
ADIOI_Strncpy(path, ".", 2);
else {
if (slash == path)
*(path + 1) = '\0';
else
*slash = '\0';
}
/* create PanFS object */
memset(&file_create_args, 0, sizeof(pan_fs_client_layout_create_args_t));
/* open directory */
fd_dir = open(path, O_RDONLY);
if (fd_dir < 0) {
FPRINTF(stderr,
"%s: I/O Error opening parent directory to create PanFS file using ioctl: %s.\n",
myname, strerror(errno));
MPI_Abort(MPI_COMM_WORLD, 1);
} else {
char *file_name_ptr = fd->filename;
slash = strrchr(fd->filename, '/');
if (slash) {
file_name_ptr = slash + 1;
}
/* create file in the directory */
file_create_args.mode = perm;
file_create_args.version = PAN_FS_CLIENT_LAYOUT_VERSION;
file_create_args.flags = PAN_FS_CLIENT_LAYOUT_CREATE_F__NONE;
ADIOI_Strncpy(file_create_args.filename, file_name_ptr,
strlen(fd->filename) + 1);
file_create_args.layout.agg_type = layout_type;
file_create_args.layout.layout_is_valid = 1;
if (layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID1_5_PARITY_STRIPE) {
file_create_args.layout.u.raid1_5_parity_stripe.total_num_comps =
layout_total_num_comps;
file_create_args.layout.u.raid1_5_parity_stripe.parity_stripe_width =
layout_parity_stripe_width;
file_create_args.layout.u.raid1_5_parity_stripe.parity_stripe_depth =
layout_parity_stripe_depth;
file_create_args.layout.u.raid1_5_parity_stripe.stripe_unit =
layout_stripe_unit;
file_create_args.layout.u.raid1_5_parity_stripe.layout_visit_policy =
layout_visit_policy;
} else if (layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID0) {
file_create_args.layout.u.raid0.total_num_comps = layout_total_num_comps;
file_create_args.layout.u.raid0.stripe_unit = layout_stripe_unit;
} else if (layout_type == PAN_FS_CLIENT_LAYOUT_TYPE__RAID10) {
file_create_args.layout.u.raid10.total_num_comps = layout_total_num_comps;
file_create_args.layout.u.raid10.stripe_unit = layout_stripe_unit;
file_create_args.layout.u.raid10.layout_visit_policy = layout_visit_policy;
}
err = ioctl(fd_dir, PAN_FS_CLIENT_LAYOUT_CREATE_FILE, &file_create_args);
if (err < 0) {
FPRINTF(stderr,
"%s: I/O Error doing ioctl on parent directory to create PanFS file using ioctl: %s.\n",
myname, strerror(errno));
MPI_Abort(MPI_COMM_WORLD, 1);
}
err = close(fd_dir);
}
ADIOI_Free(path);
}
} else {
int create_fd = open(fd->filename, amode, perm);
if (create_fd != -1) {
close(create_fd);
} else {
FPRINTF(stderr, "%s: I/O Error creating PanFS file using open: %s.\n", myname,
strerror(errno));
MPI_Abort(MPI_COMM_WORLD, 1);
}
}
}
if (fd->access_mode & ADIO_RDONLY)
amode = amode | O_RDONLY;
if (fd->access_mode & ADIO_WRONLY)
amode = amode | O_WRONLY;
if (fd->access_mode & ADIO_RDWR)
amode = amode | O_RDWR;
if (fd->access_mode & ADIO_EXCL)
amode = amode | O_EXCL;
value = (char *) ADIOI_Malloc((MPI_MAX_INFO_VAL + 1) * sizeof(char));
ADIOI_Info_get(fd->info, "panfs_concurrent_write", MPI_MAX_INFO_VAL, value, &flag);
if (flag) {
unsigned long int concurrent_write = strtoul(value, NULL, 10);
if (concurrent_write == 1) {
amode = amode | O_CONCURRENT_WRITE;
}
}
ADIOI_Free(value);
fd->fd_sys = open(fd->filename, amode, perm);
fd->fd_direct = -1;
if (fd->fd_sys != -1) {
int rc;
char temp_buffer[TEMP_BUFFER_SIZE];
pan_fs_client_layout_query_args_t file_query_args;
memset(&file_query_args, 0, sizeof(pan_fs_client_layout_query_args_t));
file_query_args.version = PAN_FS_CLIENT_LAYOUT_VERSION;
rc = ioctl(fd->fd_sys, PAN_FS_CLIENT_LAYOUT_QUERY_FILE, &file_query_args);
if (rc < 0) {
/* Error - set layout type to unknown */
ADIOI_Info_set(fd->info, "panfs_layout_type", "PAN_FS_CLIENT_LAYOUT_TYPE__INVALID");
} else {
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u", file_query_args.layout.agg_type);
ADIOI_Info_set(fd->info, "panfs_layout_type", temp_buffer);
if (file_query_args.layout.layout_is_valid == 1) {
switch (file_query_args.layout.agg_type) {
case PAN_FS_CLIENT_LAYOUT_TYPE__RAID0:
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raid0.stripe_unit);
ADIOI_Info_set(fd->info, "panfs_layout_stripe_unit", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raid0.total_num_comps);
ADIOI_Info_set(fd->info, "panfs_layout_total_num_comps", temp_buffer);
break;
case PAN_FS_CLIENT_LAYOUT_TYPE__RAID1_5_PARITY_STRIPE:
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raid1_5_parity_stripe.stripe_unit);
ADIOI_Info_set(fd->info, "panfs_layout_stripe_unit", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.
raid1_5_parity_stripe.parity_stripe_width);
ADIOI_Info_set(fd->info, "panfs_layout_parity_stripe_width", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.
raid1_5_parity_stripe.parity_stripe_depth);
ADIOI_Info_set(fd->info, "panfs_layout_parity_stripe_depth", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.
raid1_5_parity_stripe.total_num_comps);
ADIOI_Info_set(fd->info, "panfs_layout_total_num_comps", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.
raid1_5_parity_stripe.layout_visit_policy);
ADIOI_Info_set(fd->info, "panfs_layout_visit_policy", temp_buffer);
break;
case PAN_FS_CLIENT_LAYOUT_TYPE__RAID10:
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raid10.stripe_unit);
ADIOI_Info_set(fd->info, "panfs_layout_stripe_unit", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raid10.total_num_comps);
ADIOI_Info_set(fd->info, "panfs_layout_total_num_comps", temp_buffer);
MPL_snprintf(temp_buffer, TEMP_BUFFER_SIZE, "%u",
file_query_args.layout.u.raid10.layout_visit_policy);
ADIOI_Info_set(fd->info, "panfs_layout_visit_policy", temp_buffer);
break;
case PAN_FS_CLIENT_LAYOUT_TYPE__INVALID:
case PAN_FS_CLIENT_LAYOUT_TYPE__DEFAULT:
MPI_Info_set(fd->info, "panfs_layout_type",
"PAN_FS_CLIENT_LAYOUT_TYPE__INVALID");
default:
break;
}
}
}
}
if ((fd->fd_sys != -1) && (fd->access_mode & ADIO_APPEND))
fd->fp_ind = fd->fp_sys_posn = lseek(fd->fd_sys, 0, SEEK_END);
if (fd->fd_sys == -1) {
*error_code = ADIOI_Err_create_code(myname, fd->filename, errno);
} else
*error_code = MPI_SUCCESS;
}
|
