darshan-logutils.c 25.3 KB
Newer Older
1
2
3
4
5
/*
 *  (C) 2009 by Argonne National Laboratory.
 *      See COPYRIGHT in top-level directory.
 */

6
7
#include <stdio.h>
#include <string.h>
8
#include <assert.h>
9
#include <stdlib.h>
10
#include "darshan-logutils.h"
11
#include "darshan-config.h"
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

/* isn't there a clever c way to avoid this? */
char *darshan_names[] = {
    "CP_INDEP_OPENS",
    "CP_COLL_OPENS",               /* count of MPI collective opens */
    "CP_INDEP_READS",              /* count of independent MPI reads */
    "CP_INDEP_WRITES",             /* count of independent MPI writes */
    "CP_COLL_READS",               /* count of collective MPI reads */
    "CP_COLL_WRITES",              /* count of collective MPI writes */
    "CP_SPLIT_READS",              /* count of split collective MPI reads */
    "CP_SPLIT_WRITES",             /* count of split collective MPI writes */
    "CP_NB_READS",                 /* count of nonblocking MPI reads */
    "CP_NB_WRITES",                /* count of nonblocking MPI writes */
    "CP_SYNCS",                    /* count of MPI_File_sync */
    "CP_POSIX_READS",              /* count of posix reads */
    "CP_POSIX_WRITES",             /* count of posix writes */
    "CP_POSIX_OPENS",              /* count of posix opens */
    "CP_POSIX_SEEKS",              /* count of posix seeks */
    "CP_POSIX_STATS",              /* count of posix stat/lstat/fstats */
    "CP_POSIX_MMAPS",              /* count of posix mmaps */
    "CP_POSIX_FREADS",
    "CP_POSIX_FWRITES",
    "CP_POSIX_FOPENS",
    "CP_POSIX_FSEEKS",
    "CP_POSIX_FSYNCS",
    "CP_POSIX_FDSYNCS",
38
39
40
    "CP_INDEP_NC_OPENS",
    "CP_COLL_NC_OPENS",
    "CP_HDF5_OPENS",
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
    "CP_COMBINER_NAMED",           /* count of each MPI datatype category */
    "CP_COMBINER_DUP",
    "CP_COMBINER_CONTIGUOUS",
    "CP_COMBINER_VECTOR",
    "CP_COMBINER_HVECTOR_INTEGER",
    "CP_COMBINER_HVECTOR",
    "CP_COMBINER_INDEXED",
    "CP_COMBINER_HINDEXED_INTEGER",
    "CP_COMBINER_HINDEXED",
    "CP_COMBINER_INDEXED_BLOCK",
    "CP_COMBINER_STRUCT_INTEGER",
    "CP_COMBINER_STRUCT",
    "CP_COMBINER_SUBARRAY",
    "CP_COMBINER_DARRAY",
    "CP_COMBINER_F90_REAL",
    "CP_COMBINER_F90_COMPLEX",
    "CP_COMBINER_F90_INTEGER",
    "CP_COMBINER_RESIZED",
    "CP_HINTS",                     /* count of MPI hints used */
    "CP_VIEWS",                     /* count of MPI set view calls */
    "CP_MODE",                      /* mode of file */
    "CP_BYTES_READ",                /* total bytes read */
    "CP_BYTES_WRITTEN",             /* total bytes written */
    "CP_MAX_BYTE_READ",             /* highest offset byte read */
    "CP_MAX_BYTE_WRITTEN",          /* highest offset byte written */
    "CP_CONSEC_READS",              /* count of consecutive reads */
    "CP_CONSEC_WRITES",             /* count of consecutive writes */
    "CP_SEQ_READS",                 /* count of sequential reads */
    "CP_SEQ_WRITES",                /* count of sequential writes */
    "CP_RW_SWITCHES",
    "CP_MEM_NOT_ALIGNED",           /* count of accesses not mem aligned */
    "CP_MEM_ALIGNMENT",             /* mem alignment in bytes */
    "CP_FILE_NOT_ALIGNED",          /* count of accesses not file aligned */
    "CP_FILE_ALIGNMENT",            /* file alignment in bytes */
75
76
    "CP_MAX_READ_TIME_SIZE",
    "CP_MAX_WRITE_TIME_SIZE",
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
    "CP_SIZE_READ_0_100",           /* count of posix read size ranges */
    "CP_SIZE_READ_100_1K",
    "CP_SIZE_READ_1K_10K",
    "CP_SIZE_READ_10K_100K",
    "CP_SIZE_READ_100K_1M",
    "CP_SIZE_READ_1M_4M",
    "CP_SIZE_READ_4M_10M",
    "CP_SIZE_READ_10M_100M",
    "CP_SIZE_READ_100M_1G",
    "CP_SIZE_READ_1G_PLUS",
    "CP_SIZE_WRITE_0_100",          /* count of posix write size ranges */
    "CP_SIZE_WRITE_100_1K",
    "CP_SIZE_WRITE_1K_10K",
    "CP_SIZE_WRITE_10K_100K",
    "CP_SIZE_WRITE_100K_1M",
    "CP_SIZE_WRITE_1M_4M",
    "CP_SIZE_WRITE_4M_10M",
    "CP_SIZE_WRITE_10M_100M",
    "CP_SIZE_WRITE_100M_1G",
    "CP_SIZE_WRITE_1G_PLUS",
    "CP_SIZE_READ_AGG_0_100",       /* count of MPI read size ranges */
    "CP_SIZE_READ_AGG_100_1K",
    "CP_SIZE_READ_AGG_1K_10K",
    "CP_SIZE_READ_AGG_10K_100K",
    "CP_SIZE_READ_AGG_100K_1M",
    "CP_SIZE_READ_AGG_1M_4M",
    "CP_SIZE_READ_AGG_4M_10M",
    "CP_SIZE_READ_AGG_10M_100M",
    "CP_SIZE_READ_AGG_100M_1G",
    "CP_SIZE_READ_AGG_1G_PLUS",
    "CP_SIZE_WRITE_AGG_0_100",      /* count of MPI write size ranges */
    "CP_SIZE_WRITE_AGG_100_1K",
    "CP_SIZE_WRITE_AGG_1K_10K",
    "CP_SIZE_WRITE_AGG_10K_100K",
    "CP_SIZE_WRITE_AGG_100K_1M",
    "CP_SIZE_WRITE_AGG_1M_4M",
    "CP_SIZE_WRITE_AGG_4M_10M",
    "CP_SIZE_WRITE_AGG_10M_100M",
    "CP_SIZE_WRITE_AGG_100M_1G",
    "CP_SIZE_WRITE_AGG_1G_PLUS",
    "CP_EXTENT_READ_0_100",          /* count of MPI read extent ranges */
    "CP_EXTENT_READ_100_1K",
    "CP_EXTENT_READ_1K_10K",
    "CP_EXTENT_READ_10K_100K",
    "CP_EXTENT_READ_100K_1M",
    "CP_EXTENT_READ_1M_4M",
    "CP_EXTENT_READ_4M_10M",
    "CP_EXTENT_READ_10M_100M",
    "CP_EXTENT_READ_100M_1G",
    "CP_EXTENT_READ_1G_PLUS",
    "CP_EXTENT_WRITE_0_100",         /* count of MPI write extent ranges */
    "CP_EXTENT_WRITE_100_1K",
    "CP_EXTENT_WRITE_1K_10K",
    "CP_EXTENT_WRITE_10K_100K",
    "CP_EXTENT_WRITE_100K_1M",
    "CP_EXTENT_WRITE_1M_4M",
    "CP_EXTENT_WRITE_4M_10M",
    "CP_EXTENT_WRITE_10M_100M",
    "CP_EXTENT_WRITE_100M_1G",
    "CP_EXTENT_WRITE_1G_PLUS",
    "CP_STRIDE1_STRIDE",             /* the four most frequently appearing strides */
    "CP_STRIDE2_STRIDE",
    "CP_STRIDE3_STRIDE",
    "CP_STRIDE4_STRIDE",
    "CP_STRIDE1_COUNT",              /* count of each of the most frequent strides */
    "CP_STRIDE2_COUNT",
    "CP_STRIDE3_COUNT",
    "CP_STRIDE4_COUNT",
    "CP_ACCESS1_ACCESS",
    "CP_ACCESS2_ACCESS",
    "CP_ACCESS3_ACCESS",
    "CP_ACCESS4_ACCESS",
    "CP_ACCESS1_COUNT",
    "CP_ACCESS2_COUNT",
    "CP_ACCESS3_COUNT",
    "CP_ACCESS4_COUNT",
153
    "CP_DEVICE",
154
    "CP_SIZE_AT_OPEN",
155
156
157
158
    "CP_FASTEST_RANK",
    "CP_FASTEST_RANK_BYTES",
    "CP_SLOWEST_RANK",
    "CP_SLOWEST_RANK_BYTES",
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176

    "CP_NUM_INDICES"
};

/* isn't there a clever c way to avoid this? */
char *darshan_f_names[] = {
    "CP_F_OPEN_TIMESTAMP",        /* timestamp of first open */
    "CP_F_READ_START_TIMESTAMP",  /* timestamp of first read */
    "CP_F_WRITE_START_TIMESTAMP", /* timestamp of first write */
    "CP_F_CLOSE_TIMESTAMP",       /* timestamp of last close */
    "CP_F_READ_END_TIMESTAMP",    /* timestamp of last read */
    "CP_F_WRITE_END_TIMESTAMP",   /* timestamp of last write */
    "CP_F_POSIX_READ_TIME",       /* cumulative posix read time */
    "CP_F_POSIX_WRITE_TIME",      /* cumulative posix write time */
    "CP_F_POSIX_META_TIME",       /* cumulative posix meta time */
    "CP_F_MPI_META_TIME",         /* cumulative mpi-io metadata time */
    "CP_F_MPI_READ_TIME",         /* cumulative mpi-io read time */
    "CP_F_MPI_WRITE_TIME",        /* cumulative mpi-io write time */
177
178
    "CP_F_MAX_READ_TIME",
    "CP_F_MAX_WRITE_TIME",
179
180
181
182
183
184
    "CP_F_FASTEST_RANK_TIME",
    "CP_F_SLOWEST_RANK_TIME",
    "CP_F_VARIANCE_RANK_TIME",
    "CP_F_VARIANCE_RANK_BYTES",

    "CP_F_NUM_INDICES"
185
186
};

187
188
189
190
191
192
193
/* function pointers so that we can switch functions depending on what file
 * version is detected
 */
int (*getjob_internal)(darshan_fd file, struct darshan_job *job);
int (*getfile_internal)(darshan_fd fd, 
    struct darshan_job *job, 
    struct darshan_file *file);
194
#define JOB_SIZE_124 28
195

196
/* internal routines for parsing different file versions */
197
198
199
200
201
202
203
204
205
206
static int getjob_internal_200(darshan_fd file, struct darshan_job *job);
static int getfile_internal_200(darshan_fd fd, struct darshan_job *job, 
    struct darshan_file *file);
static int getjob_internal_124(darshan_fd file, struct darshan_job *job);
static int getfile_internal_124(darshan_fd fd, struct darshan_job *job, 
    struct darshan_file *file);
static int getfile_internal_122(darshan_fd fd, struct darshan_job *job, 
    struct darshan_file *file);
static int getfile_internal_121(darshan_fd fd, struct darshan_job *job, 
    struct darshan_file *file);
207
208
209
210
static int getfile_internal_1x(darshan_fd fd, struct darshan_job *job, 
    struct darshan_file *file, int n_counters, int n_fcounters);
static void shift_missing_1_22(struct darshan_file* file);
static void shift_missing_1_21(struct darshan_file* file);
211

212
/* a rather crude API for accessing raw binary darshan files */
213
darshan_fd darshan_log_open(const char *name)
214
{
215
216
217
218
219
220
221
222
223
224
225
226
227
    darshan_fd tmp_fd = malloc(sizeof(*tmp_fd));
    if(!tmp_fd)
        return(NULL);

    memset(tmp_fd, 0, sizeof(*tmp_fd));

    tmp_fd->gzf = gzopen(name, "r");
    if(!tmp_fd->gzf)
    {
        free(tmp_fd);
        tmp_fd = NULL;
    }
    return tmp_fd;
228
229
}

230
/* darshan_log_getjob()
231
232
233
 *
 * returns 0 on success, -1 on failure
 */
234
int darshan_log_getjob(darshan_fd file, struct darshan_job *job)
235
236
{
    int ret;
237

238
    gzseek(file->gzf, 0, SEEK_SET);
239

240
241
242
243
244
    /* read version number first so we know how to digest the rest of the
     * file
     */
    ret = gzread(file->gzf, file->version, 10);
    if(ret < 10)
245
    {
246
        fprintf(stderr, "Error: invalid log file (failed to read version).\n");
247
248
249
        return(-1);
    }

250
    if(strcmp(file->version, "2.00") == 0)
251
    {
252
253
        getjob_internal = getjob_internal_200;
        getfile_internal = getfile_internal_200;
254
        file->job_struct_size = sizeof(*job);
255
    }
256
    else if(strcmp(file->version, "1.24") == 0)
257
    {
258
259
        getjob_internal = getjob_internal_124;
        getfile_internal = getfile_internal_124;
260
        file->job_struct_size = JOB_SIZE_124;
261
    }
262
    else if(strcmp(file->version, "1.23") == 0)
263
    {
264
265
266
        /* same as 1.24, except that mnt points may be incorrect */
        getjob_internal = getjob_internal_124;
        getfile_internal = getfile_internal_124;
267
        file->job_struct_size = JOB_SIZE_124;
268
    }
269
    else if(strcmp(file->version, "1.22") == 0)
270
    {
271
272
        getjob_internal = getjob_internal_124;
        getfile_internal = getfile_internal_122;
273
        file->job_struct_size = JOB_SIZE_124;
274
    }
275
    else if(strcmp(file->version, "1.21") == 0)
276
    {
277
        getjob_internal = getjob_internal_124;
Philip Carns's avatar
Philip Carns committed
278
        getfile_internal = getfile_internal_121;
279
        file->job_struct_size = JOB_SIZE_124;
280
281
    }
    else
282
    {
283
284
285
        fprintf(stderr, "Error: incompatible darshan file.\n");
        fprintf(stderr, "Error: expected version %s, but got %s\n", 
                CP_VERSION, file->version);
286
        return(-1);
287
288
    }

289
290
291
    ret = getjob_internal(file, job);
    return(ret);
}
292

293
294
295
296
297
298
299
/* darshan_log_getfile()
 *
 * return 1 if file record found, 0 on eof, and -1 on error
 */
int darshan_log_getfile(darshan_fd fd, struct darshan_job *job, struct darshan_file *file)
{
    int ret;
300

301
302
303
    ret = getfile_internal(fd, job, file);

    return(ret);
304
305
}

306
307
308
309
310
311
/* darshan_log_getmounts()
 * 
 * retrieves mount table information from the log.  Note that devs, mnt_pts,
 * and fs_types are arrays that will be allocated by the function and must
 * be freed by the caller.  count will indicate the size of the arrays
 */
312
int darshan_log_getmounts(darshan_fd fd, int64_t** devs, char*** mnt_pts, char***
313
314
315
316
317
318
319
    fs_types, int* count, int *flag)
{
    int ret;
    char* pos;
    int array_index = 0;
    char buf[CP_EXE_LEN+1];

320
    gzseek(fd->gzf, fd->job_struct_size, SEEK_SET);
321

322
    ret = gzread(fd->gzf, buf, (CP_EXE_LEN + 1));
323
324
325
326
327
    if (ret < (CP_EXE_LEN + 1))
    {
        perror("gzread");
        return(-1);
    }
328
    if (gzeof(fd->gzf))
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
        *flag = 1;
    else
        *flag = 0;

    /* count entries */
    *count = 0;
    pos = buf;
    while((pos = strchr(pos, '\n')) != NULL)
    {
        pos++;
        (*count)++;
    }

    if(*count == 0)
    {
        /* no mount entries present */
        return(0);
    }

    /* allocate output arrays */
349
    *devs = malloc((*count)*sizeof(int64_t));
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
    assert(*devs);
    *mnt_pts = malloc((*count)*sizeof(char*));
    assert(*mnt_pts);
    *fs_types = malloc((*count)*sizeof(char*));
    assert(*fs_types);
    
    /* work backwards through the table and parse each line (except for
     * first, which holds command line information)
     */
    while((pos = strrchr(buf, '\n')) != NULL)
    {
        /* overestimate string lengths */
        (*mnt_pts)[array_index] = malloc(CP_EXE_LEN);
        assert((*mnt_pts)[array_index]);
        (*fs_types)[array_index] = malloc(CP_EXE_LEN);
        assert((*fs_types)[array_index]);
        
367
368
#if SIZEOF_LONG_INT == 4
        ret = sscanf(++pos, "%lld\t%s\t%s", &(*devs)[array_index],
369
            (*fs_types)[array_index], (*mnt_pts)[array_index]);
370
371
372
373
374
375
376
#elif SIZEOF_LONG_INT == 8
        ret = sscanf(++pos, "%ld\t%s\t%s", &(*devs)[array_index],
            (*fs_types)[array_index], (*mnt_pts)[array_index]);
#else
#  error Unexpected sizeof(long int)
#endif

377
378
379
380
381
382
383
384
385
386
387
388
389
390
        if(ret != 3)
        {
            fprintf(stderr, "Error: poorly formatted mount table in log file.\n");
            return(-1);
        }
        pos--;
        *pos = '\0';
        array_index++;
    }
   
    return (0);
}


391
int darshan_log_getexe(darshan_fd fd, char *buf, int *flag)
392
393
{
    int ret;
394
    char* newline;
395

396
    gzseek(fd->gzf, fd->job_struct_size, SEEK_SET);
397

398
    ret = gzread(fd->gzf, buf, (CP_EXE_LEN + 1));
399
400
401
402
403
    if (ret < (CP_EXE_LEN + 1))
    {
        perror("gzread");
        return(-1);
    }
404
    if (gzeof(fd->gzf))
405
406
407
408
        *flag = 1;
    else
        *flag = 0;

409
410
411
412
413
414
415
416
    /* this call is only supposed to return the exe string, but starting in
     * log format 1.23 there could be a table of mount entry information
     * after the exe.  Look for newline character and truncate there.
     */
    newline = strchr(buf, '\n');
    if(newline)
        *newline = '\0';

417
418
419
    return (0);
}

420
void darshan_log_close(darshan_fd file)
421
{
422
423
    gzclose(file->gzf);
    free(file);
424
425
}

426
427
428
429
430
431
/* darshan_log_print_version_warnings()
 *
 * Print summary of any problems with the detected log format
 */
void darshan_log_print_version_warnings(struct darshan_job *job)
{
432
433
434
435
436
437
    if(strcmp(job->version_string, "2.00") == 0)
    {
        /* current version */
        return;
    }
 
438
    if(strcmp(job->version_string, "1.24") == 0)
439
    {
440
        printf("# WARNING: version 1.24 log format does not store the job id in the log file.\n");
441
442
        return;
    }
443
    
444
445
446
    if(strcmp(job->version_string, "1.23") == 0)
    {
        printf("# WARNING: version 1.23 log format may have incorrect mount point mappings for files with rank > 0\n");
447
        printf("# It also does not store the job id in the log file.\n");
448
        return;
449
450
    }

451
452
453
454
    if(strcmp(job->version_string, "1.22") == 0)
    {
        printf("# WARNING: version 1.22 log format does not support the following parameters:\n");
        printf("#   CP_DEVICE\n");
455
456
        printf("#   CP_SIZE_AT_OPEN\n");
        printf("# It does not record mounted file systems, mount points, or fs types.\n");
457
458
        printf("# It attributes syncs to cumulative metadata time, rather than cumulative write time.\n");
        printf("# It also does not store the job id in the log file.\n");
459
460
        return;
    }
461
462
463
464
465
466
467
468
469

    if(strcmp(job->version_string, "1.21") == 0)
    {
        printf("# WARNING: version 1.21 log format does not support the following parameters:\n");
        printf("#   CP_INDEP_NC_OPENS\n");
        printf("#   CP_COLL_NC_OPENS\n");
        printf("#   CP_HDF5_OPENS\n");
        printf("#   CP_MAX_READ_TIME_SIZE\n");
        printf("#   CP_MAX_WRITE_TIME_SIZE\n");
470
        printf("#   CP_DEVICE\n");
471
        printf("#   CP_SIZE_AT_OPEN\n");
472
473
        printf("#   CP_F_MAX_READ_TIME\n");
        printf("#   CP_F_MAX_WRITE_TIME\n");
474
475
        printf("# It does not record mounted file systems, mount points, or fs types.\n");
        printf("# It attributes syncs to cumulative metadata time, rather than cumulative write time.\n");
476
        printf("#\n");
477
        printf("# It also does not store the job id in the file.\n");
478
479
480
481
482
483
484
485
        return;
    }

    fprintf(stderr, "Error: version %s not supported by parser.\n",
        job->version_string);
    return;
}

486
487
488
489
/* shift_missing_1_21()
 *
 * translates indices to account for counters that weren't present in log
 * format 1.21
490
 */
491
/*******************************
Philip Carns's avatar
Philip Carns committed
492
 * version 1.21 to 2.00 differences 
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
 * - added:
 *   - CP_INDEP_NC_OPENS
 *   - CP_COLL_NC_OPENS
 *   - CP_HDF5_OPENS
 *   - CP_MAX_READ_TIME_SIZE
 *   - CP_MAX_WRITE_TIME_SIZE
 *   - CP_DEVICE
 *   - CP_SIZE_AT_OPEN
 *   - CP_F_MAX_READ_TIME
 *   - CP_F_MAX_WRITE_TIME
 * - changed params:
 *   - CP_FILE_RECORD_SIZE: 1184 to 1248
 *   - CP_NUM_INDICES: 133 to 140
 *   - CP_F_NUM_INDICES: 12 to 14
 * - so 60 bytes worth of new indices are the only difference
 */
509
510
511
512
513
514
515
516
517
static void shift_missing_1_21(struct darshan_file* file)
{
    int c_index = 0;
    int missing_counters[] = {
        CP_INDEP_NC_OPENS,
        CP_COLL_NC_OPENS,
        CP_HDF5_OPENS,
        CP_MAX_READ_TIME_SIZE,
        CP_MAX_WRITE_TIME_SIZE,
518
        CP_DEVICE,
519
        CP_SIZE_AT_OPEN,
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
        -1};
    int missing_f_counters[] = {
        CP_F_MAX_READ_TIME,
        CP_F_MAX_WRITE_TIME,
        -1};

    c_index = 0;
    while(missing_counters[c_index] != -1)
    {
        int missing_counter = missing_counters[c_index];
        c_index++;
        if(missing_counter < (CP_NUM_INDICES - 1))
        {
            /* shift down */
            memmove(&file->counters[missing_counter+1],
                &file->counters[missing_counter],
                (CP_NUM_INDICES-missing_counter-1)*sizeof(int64_t));
        }
        /* zero out missing counter */
        file->counters[missing_counter] = 0;
    }

    c_index = 0;
    while(missing_f_counters[c_index] != -1)
    {
        int missing_counter = missing_f_counters[c_index];
        c_index++;
        if(missing_counter < (CP_F_NUM_INDICES - 1))
        {
            /* shift down */
            memmove(&file->fcounters[missing_counter+1],
                &file->fcounters[missing_counter],
                (CP_F_NUM_INDICES-missing_counter-1)*sizeof(double));
        }
        /* zero out missing counter */
        file->fcounters[missing_counter] = 0;
    }

    return;
}
560
561
562
563
564
565

/* shift_missing_1_22()
 *
 * translates indices to account for counters that weren't present in log
 * format 1.22
 */
566
/*******************************
Philip Carns's avatar
Philip Carns committed
567
 * version 1.22 to 2.00 differences
568
569
570
571
572
573
574
575
 *
 * - added:
 *   - CP_DEVICE
 *   - CP_SIZE_AT_OPEN
 * - changed params:
 *   - CP_FILE_RECORD_SIZE: 1240 to 1248
 *   - CP_NUM_INDICES: 138 to 140
 */
576
577
578
579
580
static void shift_missing_1_22(struct darshan_file* file)
{
    int c_index = 0;
    int missing_counters[] = {
        CP_DEVICE,
581
        CP_SIZE_AT_OPEN,
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
        -1};

    c_index = 0;
    while(missing_counters[c_index] != -1)
    {
        int missing_counter = missing_counters[c_index];
        c_index++;
        if(missing_counter < (CP_NUM_INDICES - 1))
        {
            /* shift down */
            memmove(&file->counters[missing_counter+1],
                &file->counters[missing_counter],
                (CP_NUM_INDICES-missing_counter-1)*sizeof(int64_t));
        }
        /* zero out missing counter */
        file->counters[missing_counter] = 0;
    }

    return;
}
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635

static int getjob_internal_200(darshan_fd file, struct darshan_job *job)
{
    int ret;

    gzseek(file->gzf, 0, SEEK_SET);

    ret = gzread(file->gzf, job, sizeof(*job));
    if (ret < sizeof(*job))
    {
        if(gzeof(file->gzf))
        {
            fprintf(stderr, "Error: invalid log file (too short).\n");
        }
        perror("darshan_job_init");
        return(-1);
    }

    if(job->magic_nr == CP_MAGIC_NR)
    {
        /* no byte swapping needed, this file is in host format already */
        file->swap_flag = 0;
        return(0);
    }

    /* try byte swapping */
    DARSHAN_BSWAP64(&job->magic_nr);
    if(job->magic_nr == CP_MAGIC_NR)
    {
        file->swap_flag = 1;
        DARSHAN_BSWAP64(&job->uid);
        DARSHAN_BSWAP64(&job->start_time);
        DARSHAN_BSWAP64(&job->end_time);
        DARSHAN_BSWAP64(&job->nprocs);
636
        DARSHAN_BSWAP64(&job->jobid);
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
        return(0);
    }

    /* otherwise this file is just broken */
    fprintf(stderr, "Error: bad magic number in darshan file.\n");
    return(-1);
}

static int getfile_internal_200(darshan_fd fd, struct darshan_job *job, 
    struct darshan_file *file)
{
    int ret;
    const char* err_string;
    int i;
    
    if(gztell(fd->gzf) < CP_JOB_RECORD_SIZE)
        gzseek(fd->gzf, CP_JOB_RECORD_SIZE, SEEK_SET);

    /* reset file record, so that diff compares against a zero'd out record
     * if file is missing
     */
    memset(file, 0, sizeof(&file));

    ret = gzread(fd->gzf, file, sizeof(*file));
    if(ret == sizeof(*file))
    {
        /* got exactly one, correct size record */
        if(fd->swap_flag)
        {
            /* swap bytes if necessary */
            DARSHAN_BSWAP64(&file->hash);
            DARSHAN_BSWAP64(&file->rank);
            for(i=0; i<CP_NUM_INDICES; i++)
                DARSHAN_BSWAP64(&file->counters[i]);
            for(i=0; i<CP_F_NUM_INDICES; i++)
                DARSHAN_BSWAP64(&file->fcounters[i]);
        }
        return(1);
    }


    if(ret > 0)
    {
        /* got a short read */
        fprintf(stderr, "Error: invalid file record (too small)\n");
        return(-1);
    }

    if(ret == 0 && gzeof(fd->gzf))
    {
        /* hit end of file */
        return(0);
    }

    /* all other errors */
    err_string = gzerror(fd->gzf, &ret);
    fprintf(stderr, "Error: %s\n", err_string);
    return(-1);
}

697
698
699
/* If we see version 1.24, assume that it is stored in big endian 32 bit
 * format.  Convert up to current format.
 */
700
701
static int getjob_internal_124(darshan_fd fd, struct darshan_job *job)
{
702
703
704
705
706
707
708
    char* buffer;
    int ret;
    uint32_t uid;
    int32_t start_time;
    int32_t end_time;
    int32_t nprocs;

709
710
711
712
713
714
#ifdef WORDS_BIGENDIAN
    fd->swap_flag = 0;
#else
    fd->swap_flag = 1;
#endif

715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
    memset(job, 0, sizeof(*job));

    buffer = (char*)malloc(JOB_SIZE_124);
    if(!buffer)
    {
        return(-1);
    }

    gzseek(fd->gzf, 0, SEEK_SET);

    ret = gzread(fd->gzf, buffer, JOB_SIZE_124);
    if (ret < JOB_SIZE_124)
    {
        fprintf(stderr, "Error: invalid log file (could not read file record).\n");
        free(buffer);
        return(-1);
    }

    /* pull job header information out of specific bytes in case struct
     * padding is off
     */
    strncpy(job->version_string, buffer, 8);
    uid = *((uint32_t*)&buffer[12]);
    start_time = *((int32_t*)&buffer[16]);
    end_time = *((int32_t*)&buffer[20]);
    nprocs = *((int32_t*)&buffer[24]);

    free(buffer);

744
745
746
747
748
749
750
751
    if(fd->swap_flag)
    {
        /* byte swap */
        DARSHAN_BSWAP32(&uid);
        DARSHAN_BSWAP32(&start_time);
        DARSHAN_BSWAP32(&end_time);
        DARSHAN_BSWAP32(&nprocs);
    }
752
753
754
755
756

    job->uid += uid;
    job->start_time += start_time;
    job->end_time += end_time;
    job->nprocs += nprocs;
757
    job->jobid = 0; /* old log versions did not have this field */
758
759
760
761
762
    
    /* set magic number */
    job->magic_nr = CP_MAGIC_NR;

    return(0);
763
764
765
766
}

static int getfile_internal_124(darshan_fd fd, struct darshan_job *job, 
    struct darshan_file *file)
767
768
769
770
771
772
773
774
775
{
    return(getfile_internal_1x(fd, job, file, 140, 14));
}

static int getfile_internal_122(darshan_fd fd, struct darshan_job *job, 
    struct darshan_file *file)
{
    int ret;

776
777
    ret = getfile_internal_1x(fd, job, file, 138, 14);
    if(ret <= 0)
778
779
780
781
        return(ret);

    shift_missing_1_22(file);

782
    return(1);
783
784
785
786
787
788
789
}

static int getfile_internal_121(darshan_fd fd, struct darshan_job *job, 
    struct darshan_file *file)
{
    int ret;

790
791
    ret = getfile_internal_1x(fd, job, file, 133, 12);
    if(ret <= 0)
792
793
794
795
        return(ret);

    shift_missing_1_21(file);

796
    return(1);
797
798
799
800
}

static int getfile_internal_1x(darshan_fd fd, struct darshan_job *job, 
    struct darshan_file *file, int n_counters, int n_fcounters)
801
{
802
803
804
805
806
807
808
809
810
    char* buffer;
    int ret;
    const char* err_string;
    int i;
    uint64_t hash;
    int32_t rank;
    int64_t* counters;
    double* fcounters;
    char* name_suffix;
811
    int FILE_SIZE_1x = (32 + n_counters*8 + n_fcounters*8);
812

813
814
815
816
817
818
819
820
821
    memset(file, 0, sizeof(*file));

    /* set file pointer if this is the first file record; otherwise pick up
     * where we left off last time
     */
    if(gztell(fd->gzf) < CP_JOB_RECORD_SIZE)
        gzseek(fd->gzf, CP_JOB_RECORD_SIZE, SEEK_SET);

    /* space for file struct, int64 array, and double array */
822
    buffer = (char*)malloc(FILE_SIZE_1x);
823
824
825
826
827
    if(!buffer)
    {
        return(-1);
    }

828
    ret = gzread(fd->gzf, buffer, FILE_SIZE_1x);
829

830
    if(ret > 0 && ret < FILE_SIZE_1x)
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
    {
        /* got a short read */
        fprintf(stderr, "Error: invalid file record (too small)\n");
        free(buffer);
        return(-1);
    }
    else if(ret == 0 && gzeof(fd->gzf))
    {
        /* hit end of file */
        free(buffer);
        return(0);
    }
    else if(ret <= 0)
    {
        /* all other errors */
        err_string = gzerror(fd->gzf, &ret);
        fprintf(stderr, "Error: %s\n", err_string);
        free(buffer);
        return(-1);
    }

    /* got exactly one, correct size record */
    hash = *((int64_t*)&buffer[0]);
    rank = *((int32_t*)&buffer[8]);
    counters = ((int64_t*)&buffer[16]);
856
857
    fcounters = ((double*)&buffer[16 + n_counters*8]);
    name_suffix = &buffer[16 + n_counters*8 + n_fcounters*8];
858
859
860
861
862
863
864


    if(fd->swap_flag)
    {
        /* swap bytes if necessary */
        DARSHAN_BSWAP64(&hash);
        DARSHAN_BSWAP32(&rank);
865
        for(i=0; i<n_counters; i++)
866
            DARSHAN_BSWAP64(&counters[i]);
867
        for(i=0; i<n_fcounters; i++)
868
869
870
871
872
873
            DARSHAN_BSWAP64(&fcounters[i]);
    }

    /* assign into new format */
    file->hash = hash;
    file->rank += rank;
874
875
    memcpy(file->counters, counters, n_counters*8);
    memcpy(file->fcounters, fcounters, n_fcounters*8);
876
877
878
879
    memcpy(file->name_suffix, name_suffix, 12);

    free(buffer);
    return(1);
880
881
882
883
}