darshan-posix-parser.c 5.28 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
/*
 *  (C) 2009 by Argonne National Laboratory.
 *      See COPYRIGHT in top-level directory.
 */

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <zlib.h>
#include <time.h>
#include <stdlib.h>
#include <getopt.h>
#include <assert.h>

#include "darshan-logutils.h"
#include "uthash-1.9.2/src/uthash.h"

int main(int argc, char **argv)
{
    int ret;
24
    int i;
25
    char *filename;
26
    char tmp_string[4096];
27 28 29
    darshan_fd file;
    struct darshan_header header;
    struct darshan_job job;
30
    struct darshan_record_ref *rec_hash = NULL;
31
    struct darshan_record_ref *ref, *tmp;
32 33 34 35
    int mount_count;
    int64_t* devs;
    char** mnt_pts;
    char** fs_types;
36
    struct darshan_posix_file next_rec;
37
    time_t tmp_time = 0;
38 39 40
    char *token;
    char *save;
    char buffer[DARSHAN_JOB_METADATA_LEN];
41 42 43 44 45 46 47 48 49 50 51 52 53 54

    assert(argc == 2);
    filename = argv[1];

    struct stat sbuf;
    stat(filename, &sbuf);

    file = darshan_log_open(filename, "r");
    if(!file)
    {
        fprintf(stderr, "darshan_log_open() failed to open %s\n.", filename);
        return(-1);
    }

55
    /* read darshan log header */
56 57 58 59 60 61 62 63
    ret = darshan_log_getheader(file, &header);
    if(ret < 0)
    {
        fprintf(stderr, "darshan_log_getheader() failed to read log header.\n");
        darshan_log_close(file);
        return(-1);
    }

64
    /* read darshan job info */
65 66 67 68 69 70 71 72
    ret = darshan_log_getjob(file, &job);
    if(ret < 0)
    {
        fprintf(stderr, "darshan_log_getjob() failed to read job data.\n");
        darshan_log_close(file);
        return(-1);
    }

73 74 75 76 77 78 79 80 81
    /* get the original command line for this job */
    ret = darshan_log_getexe(file, tmp_string);
    if(ret < 0)
    {
        fprintf(stderr, "Error: unable to read trailing job information.\n");
        darshan_log_close(file);
        return(-1);
    }

82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97
    /* print job summary */
    printf("# darshan log version: %s\n", header.version_string);
    printf("# size of POSIX file statistics: %zu bytes\n", sizeof(next_rec));
    printf("# size of job statistics: %zu bytes\n", sizeof(job));
    printf("# exe: %s\n", tmp_string);
    printf("# uid: %" PRId64 "\n", job.uid);
    printf("# jobid: %" PRId64 "\n", job.jobid);
    printf("# start_time: %" PRId64 "\n", job.start_time);
    tmp_time += job.start_time;
    printf("# start_time_asci: %s", ctime(&tmp_time));
    printf("# end_time: %" PRId64 "\n", job.end_time);
    tmp_time = 0;
    tmp_time += job.end_time;
    printf("# end_time_asci: %s", ctime(&tmp_time));
    printf("# nprocs: %" PRId64 "\n", job.nprocs);
    printf("# run time: %" PRId64 "\n", job.end_time - job.start_time + 1);
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
    for(token=strtok_r(job.metadata, "\n", &save);
        token != NULL;
        token=strtok_r(NULL, "\n", &save))
    {
        char *key;
        char *value;
        /* NOTE: we intentionally only split on the first = character.
         * There may be additional = characters in the value portion
         * (for example, when storing mpi-io hints).
         */
        strcpy(buffer, token);
        key = buffer;
        value = index(buffer, '=');
        if(!value)
            continue;
        /* convert = to a null terminator to split key and value */
        value[0] = '\0';
        value++;
        printf("# metadata: %s = %s\n", key, value);
    }

    /* get the mount information for this log */
    ret = darshan_log_getmounts(file, &devs, &mnt_pts, &fs_types, &mount_count);
    if(ret < 0)
    {
        fprintf(stderr, "darshan_log_getmounts() failed to read mount information.\n");
        darshan_log_close(file);
        return(-1);
    }

    /* print table of mounted file systems */
    printf("\n# mounted file systems (device, mount point, and fs type)\n");
    printf("# -------------------------------------------------------\n");
    for(i=0; i<mount_count; i++)
    {
        printf("# mount entry: %" PRId64 "\t%s\t%s\n", devs[i], mnt_pts[i], fs_types[i]);
    }
135

136 137
    /* read hash of darshan records */
    ret = darshan_log_gethash(file, &rec_hash);
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
    if(ret < 0)
    {
        fprintf(stderr, "darshan_log_getmap() failed to read record map.\n");
        darshan_log_close(file);
        return(-1);
    }

    /* try to retrieve first record (may not exist) */
    ret = darshan_log_getfile(file, &next_rec);
    if(ret < 0)
    {
        fprintf(stderr, "Error: failed to parse log file.\n");
        fflush(stderr);
        return(-1);
    }
    if(ret == 0)
    {
        /* it looks like the app didn't open any files */
        printf("# no files opened.\n");
        darshan_log_close(file);
        return(0);
    }

    /* iterate the posix file records stored in the darshan log */
    printf("\n*** FILE RECORD DATA ***\n");
163
    i = 0;
164 165 166 167
    do{
        struct darshan_record_ref *ref;

        /* get the pathname for this record */
168
        HASH_FIND(hlink, rec_hash, &next_rec.f_id, sizeof(darshan_record_id), ref);
169 170 171 172
        assert(ref);

        printf("\tRecord %d: id=%"PRIu64" (path=%s, rank=%"PRId64")\n",
            i, next_rec.f_id, ref->rec.name, next_rec.rank);
173 174
        printf("\t\tPOSIX_OPENS:\t%"PRIu64"\n\t\tF_OPEN_TIMESTAMP:\t%lf\n",
            next_rec.counters[CP_POSIX_OPENS], next_rec.fcounters[CP_F_OPEN_TIMESTAMP]);
175 176 177 178 179 180 181 182

        i++;
    } while((ret = darshan_log_getfile(file, &next_rec)) == 1);

    darshan_log_close(file);

    return(0);
}