darshan-parser.c 34 KB
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/*
 *  (C) 2009 by Argonne National Laboratory.
 *      See COPYRIGHT in top-level directory.
 */

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#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>
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#include <stdlib.h>
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#include <getopt.h>
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#include <assert.h>
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#include "darshan-logutils.h"
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#include "uthash-1.9.2/src/uthash.h"
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/*
 * Options
 */
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#define OPTION_BASE  (1 << 0)  /* darshan log fields */
#define OPTION_TOTAL (1 << 1)  /* aggregated fields */
#define OPTION_PERF  (1 << 2)  /* derived performance */
#define OPTION_FILE  (1 << 3)  /* file count totals */
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#define OPTION_RED_READ  (1 << 4)  /* files with redundant read traffic */
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#define OPTION_META_RATIO  (1 << 5)  /* metadata time ratio */
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#define OPTION_SHARED_SMALL_WRITES (1 << 6) /* shared files with small writes */
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#define OPTION_ALL (\
  OPTION_BASE|\
  OPTION_TOTAL|\
  OPTION_PERF|\
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  OPTION_FILE|\
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  OPTION_META_RATIO|\
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  OPTION_SHARED_SMALL_WRITES|\
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  OPTION_RED_READ)
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#define FILETYPE_SHARED (1 << 0)
#define FILETYPE_UNIQUE (1 << 1)
#define FILETYPE_PARTSHARED (1 << 2)

#define max(a,b) (((a) > (b)) ? (a) : (b))
#define max3(a,b,c) (((a) > (b)) ? (((a) > (c)) ? (a) : (c)) : (((b) > (c)) ? (b) : (c)))

/*
 * Datatypes
 */
typedef struct hash_entry_s
{
    UT_hash_handle hlink;
    int64_t hash;
    int64_t type;
    int64_t procs;
    int64_t counters[CP_NUM_INDICES];
    double  fcounters[CP_F_NUM_INDICES];
    double cumul_time;
    double meta_time;
} hash_entry_t;

typedef struct perf_data_s
{
    int64_t total_bytes;
    double slowest_rank_time;
    double slowest_rank_meta_time;
    double shared_time_by_cumul;
    double shared_time_by_open;
    double shared_time_by_open_lastio;
    double shared_time_by_slowest;
    double shared_meta_time;
    double agg_perf_by_cumul;
    double agg_perf_by_open;
    double agg_perf_by_open_lastio;
    double agg_perf_by_slowest;
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    double *rank_cumul_io_time;
    double *rank_cumul_md_time;
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} perf_data_t;

typedef struct file_data_s
{
    int64_t total;
    int64_t total_size;
    int64_t total_max;
    int64_t read_only;
    int64_t read_only_size;
    int64_t read_only_max;
    int64_t write_only;
    int64_t write_only_size;
    int64_t write_only_max;
    int64_t read_write;
    int64_t read_write_size;
    int64_t read_write_max;
    int64_t unique;
    int64_t unique_size;
    int64_t unique_max;
    int64_t shared;
    int64_t shared_size;
    int64_t shared_max;
} file_data_t;

/*
 * Prototypes
 */
void accum_perf(struct darshan_file *, hash_entry_t *, perf_data_t *);
void calc_perf(struct darshan_job *, hash_entry_t *, perf_data_t *);

void accum_file(struct darshan_file *, hash_entry_t *, file_data_t *);
void calc_file(struct darshan_job *, hash_entry_t *, file_data_t *);
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static void calc_red_read(struct darshan_job *djob,
               hash_entry_t *file_hash);
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static void calc_shared_small_writes(struct darshan_job *djob,
               hash_entry_t *file_hash);
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int usage (char *exename)
{
    fprintf(stderr, "Usage: %s [options] <filename>\n", exename);
    fprintf(stderr, "    --all   : all sub-options are enabled\n");
    fprintf(stderr, "    --base  : darshan log field data [default]\n");
    fprintf(stderr, "    --file  : total file counts\n");
    fprintf(stderr, "    --perf  : derived perf data\n");
    fprintf(stderr, "    --total : aggregated darshan field data\n");
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    fprintf(stderr, "    --red-read : files with redundant read traffic\n");
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    fprintf(stderr, "    --meta-ratio : ratio of I/O time spent in metadata\n");
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    exit(1);
}

int parse_args (int argc, char **argv, char **filename)
{
    int index;
    int mask;
    static struct option long_opts[] =
    {
        {"all",   0, NULL, OPTION_ALL},
        {"base",  0, NULL, OPTION_BASE},
        {"file",  0, NULL, OPTION_FILE},
        {"perf",  0, NULL, OPTION_PERF},
        {"total", 0, NULL, OPTION_TOTAL},
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        {"red-read", 0, NULL, OPTION_RED_READ},
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        {"meta-ratio", 0, NULL, OPTION_META_RATIO},
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        {"shared-small-writes", 0, NULL, OPTION_SHARED_SMALL_WRITES},
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        {"help",  0, NULL, 0}
    };

    mask = 0;

    while(1)
    {
        int c = getopt_long(argc, argv, "", long_opts, &index);

        if (c == -1) break;

        switch(c)
        {
            case OPTION_ALL:
            case OPTION_BASE:
            case OPTION_FILE:
            case OPTION_PERF:
            case OPTION_TOTAL:
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            case OPTION_RED_READ:
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            case OPTION_META_RATIO:
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            case OPTION_SHARED_SMALL_WRITES:
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                mask |= c;
                break;
            case 0:
            default:
                usage(argv[0]);
                break;
        }
    }

    if (optind < argc)
    {
        *filename = argv[optind];
    }
    else
    {
        usage(argv[0]);
    }

    /* default mask value if none specified */
    if (mask == 0)
    {
        mask = OPTION_BASE;
    }

    return mask;
}

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int main(int argc, char **argv)
{
    int ret;
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    int mask;
    char *filename;
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    struct darshan_job job;
    struct darshan_file cp_file;
    char tmp_string[1024];
    time_t tmp_time = 0;
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    darshan_fd file;
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    int i;
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    int mount_count;
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    int64_t* devs;
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    char** mnt_pts;
    char** fs_types;
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    int last_rank = 0;
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    char *token;
    char *save;
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    char buffer[DARSHAN_JOB_METADATA_LEN];
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    hash_entry_t *file_hash = NULL;
    hash_entry_t *curr = NULL;
    hash_entry_t *tmp = NULL;
    hash_entry_t total;
    perf_data_t pdata;
    file_data_t fdata;

    memset(&pdata, 0, sizeof(pdata));
    memset(&total, 0, sizeof(total));

    mask = parse_args(argc, argv, &filename);
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    file = darshan_log_open(filename, "r");
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    if(!file)
    {
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        fprintf(stderr, "darshan_log_open() failed to open %s\n.", filename);
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        return(-1);
    }
   
    /* read job info */
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    ret = darshan_log_getjob(file, &job);
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    if(ret < 0)
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    {
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        fprintf(stderr, "Error: unable to read job information from log file.\n");
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        darshan_log_close(file);
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        return(-1);
    }

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    /* warn user about any missing information in this log format */
    darshan_log_print_version_warnings(&job);

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    ret = darshan_log_getexe(file, tmp_string);
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    if(ret < 0)
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    {
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        fprintf(stderr, "Error: unable to read trailing job information.\n");
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        darshan_log_close(file);
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        return(-1);
    }

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    /* print job summary */
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    printf("# darshan log version: %s\n", job.version_string);
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    printf("# size of file statistics: %zu bytes\n", sizeof(cp_file));
    printf("# size of job statistics: %zu bytes\n", sizeof(job));
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    printf("# exe: %s\n", tmp_string);
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    printf("# uid: %" PRId64 "\n", job.uid);
    printf("# jobid: %" PRId64 "\n", job.jobid);
    printf("# start_time: %" PRId64 "\n", job.start_time);
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    tmp_time += job.start_time;
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    printf("# start_time_asci: %s", ctime(&tmp_time));
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    printf("# end_time: %" PRId64 "\n", job.end_time);
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    tmp_time = 0;
    tmp_time += job.end_time;
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    printf("# end_time_asci: %s", ctime(&tmp_time));
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    printf("# nprocs: %" PRId64 "\n", job.nprocs);
    printf("# run time: %" PRId64 "\n", job.end_time - job.start_time + 1);
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    for(token=strtok_r(job.metadata, "\n", &save);
        token != NULL;
        token=strtok_r(NULL, "\n", &save))
    {
        char *key;
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        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);
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    }
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    /* print table of mounted file systems */
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    ret = darshan_log_getmounts(file, &devs, &mnt_pts, &fs_types, &mount_count);
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    printf("\n# mounted file systems (device, mount point, and fs type)\n");
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    printf("# -------------------------------------------------------\n");
    for(i=0; i<mount_count; i++)
    {
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        printf("# mount entry: %" PRId64 "\t%s\t%s\n", devs[i], mnt_pts[i], fs_types[i]);
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    }
  
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    /* try to retrieve first record (may not exist) */
    ret = darshan_log_getfile(file, &job, &cp_file);
    if(ret < 0)
    {
        fprintf(stderr, "Error: failed to parse log file.\n");
        fflush(stderr);
        return(-1);
    }
    if(ret == 0)
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    {
        /* it looks like the app didn't open any files */
        printf("# no files opened.\n");
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        darshan_log_close(file);
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        return(0);
    }

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    if ((mask & OPTION_BASE))
    {
        printf("\n# description of columns:\n");
        printf("#   <rank>: MPI rank.  -1 indicates that the file is shared\n");
        printf("#      across all processes and statistics are aggregated.\n");
        printf("#   <file>: hash of file path.  0 indicates that statistics\n");
        printf("#      are condensed to refer to all files opened at the given\n");
        printf("#      process.\n");
        printf("#   <counter> and <value>: statistical counters.\n");
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        printf("#      A value of -1 indicates that Darshan could not monitor\n");
        printf("#      that counter, and its value should be ignored.\n");
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        printf("#   <name suffix>: last %d characters of file name.\n", CP_NAME_SUFFIX_LEN);
        printf("#   <mount pt>: mount point that the file resides on.\n");
        printf("#   <fs type>: type of file system that the file resides on.\n");
        printf("\n# description of counters:\n");
        printf("#   CP_POSIX_*: posix operation counts.\n");
        printf("#   CP_COLL_*: MPI collective operation counts.\n");
        printf("#   CP_INDEP_*: MPI independent operation counts.\n");
        printf("#   CP_SPIT_*: MPI split collective operation counts.\n");
        printf("#   CP_NB_*: MPI non blocking operation counts.\n");
        printf("#   READS,WRITES,OPENS,SEEKS,STATS, and MMAPS are types of operations.\n");
        printf("#   CP_*_NC_OPENS: number of indep. and collective pnetcdf opens.\n");
        printf("#   CP_HDF5_OPENS: number of hdf5 opens.\n");
        printf("#   CP_COMBINER_*: combiner counts for MPI mem and file datatypes.\n");
        printf("#   CP_HINTS: number of times MPI hints were used.\n");
        printf("#   CP_VIEWS: number of times MPI file views were used.\n");
        printf("#   CP_MODE: mode that file was opened in.\n");
        printf("#   CP_BYTES_*: total bytes read and written.\n");
        printf("#   CP_MAX_BYTE_*: highest offset byte read and written.\n");
        printf("#   CP_CONSEC_*: number of exactly adjacent reads and writes.\n");
        printf("#   CP_SEQ_*: number of reads and writes from increasing offsets.\n");
        printf("#   CP_RW_SWITCHES: number of times access alternated between read and write.\n");
        printf("#   CP_*_ALIGNMENT: memory and file alignment.\n");
        printf("#   CP_*_NOT_ALIGNED: number of reads and writes that were not aligned.\n");
        printf("#   CP_MAX_*_TIME_SIZE: size of the slowest read and write operations.\n");
        printf("#   CP_SIZE_READ_*: histogram of read access sizes.\n");
        printf("#   CP_SIZE_READ_AGG_*: histogram of MPI datatype total sizes.\n");
        printf("#   CP_EXTENT_READ_*: histogram of MPI datatype extents.\n");
        printf("#   CP_STRIDE*_STRIDE: the four most common strides detected.\n");
        printf("#   CP_STRIDE*_COUNT: count of the four most common strides.\n");
        printf("#   CP_ACCESS*_ACCESS: the four most common access sizes.\n");
        printf("#   CP_ACCESS*_COUNT: count of the four most common access sizes.\n");
        printf("#   CP_DEVICE: device id reported by stat().\n");
        printf("#   CP_SIZE_AT_OPEN: size of file when first opened.\n");
        printf("#   CP_*_RANK_BYTES: fastest, slowest and variance of bytes transfer.\n");
        printf("#   CP_F_OPEN_TIMESTAMP: timestamp of first open (mpi or posix).\n");
        printf("#   CP_F_*_START_TIMESTAMP: timestamp of first read/write (mpi or posix).\n");
        printf("#   CP_F_*_END_TIMESTAMP: timestamp of last read/write (mpi or posix).\n");
        printf("#   CP_F_CLOSE_TIMESTAMP: timestamp of last close (mpi or posix).\n");
        printf("#   CP_F_POSIX_READ/WRITE_TIME: cumulative time spent in posix reads or writes.\n");
        printf("#   CP_F_MPI_READ/WRITE_TIME: cumulative time spent in mpi-io reads or writes.\n");
        printf("#   CP_F_POSIX_META_TIME: cumulative time spent in posix open, close, fsync, stat and seek, .\n");
        printf("#   CP_F_MPI_META_TIME: cumulative time spent in mpi-io open, close, set_view, and sync.\n");
        printf("#   CP_MAX_*_TIME: duration of the slowest read and write operations.\n");
        printf("#   CP_*_RANK_TIME: fastest, slowest variance of transfer time.\n");

        printf("\n");
        CP_PRINT_HEADER();
    }
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    pdata.rank_cumul_io_time = malloc(sizeof(double)*job.nprocs);
    pdata.rank_cumul_md_time = malloc(sizeof(double)*job.nprocs);
    if (!pdata.rank_cumul_io_time || !pdata.rank_cumul_md_time)
    {
        perror("malloc failed");
        darshan_log_close(file);
        return(-1);
    }
    else
    {
        memset(pdata.rank_cumul_io_time, 0, sizeof(double)*job.nprocs);
        memset(pdata.rank_cumul_md_time, 0, sizeof(double)*job.nprocs);
    }

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    do
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    {
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        char* mnt_pt = NULL;
        char* fs_type = NULL;
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        hash_entry_t *hfile = NULL;
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        if(cp_file.rank != -1 && cp_file.rank < last_rank)
        {
            fprintf(stderr, "Error: log file contains out of order rank data.\n");
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            fflush(stderr);
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            return(-1);
        }
        if(cp_file.rank != -1)
            last_rank = cp_file.rank;
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        for(i=0; i<mount_count; i++)
        {
            if(cp_file.counters[CP_DEVICE] == devs[i])
            {
                mnt_pt = mnt_pts[i];
                fs_type = fs_types[i];
                break;
            }
        }
        if(!mnt_pt)
            mnt_pt = "UNKNOWN";
        if(!fs_type)
            fs_type = "UNKNOWN";

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        HASH_FIND(hlink,file_hash,&cp_file.hash,sizeof(int64_t),hfile);
        if (!hfile)
        {
            hfile = (hash_entry_t*) malloc(sizeof(*hfile));
            if (!hfile)
            {
                fprintf(stderr,"malloc failure");
                exit(1);
            }

            /* init */
            memset(hfile, 0, sizeof(*hfile));
            hfile->hash          = cp_file.hash;
            hfile->type          = 0;
            hfile->procs         = 0;
            hfile->cumul_time    = 0.0;
            hfile->meta_time     = 0.0;

            HASH_ADD(hlink,file_hash,hash,sizeof(int64_t),hfile);
        }

        accum_file(&cp_file, &total, NULL);
        accum_file(&cp_file, hfile, &fdata);
        accum_perf(&cp_file, hfile, &pdata);

        if ((mask & OPTION_BASE))
        {
            for(i=0; i<CP_NUM_INDICES; i++)
            {
                CP_PRINT(&job, &cp_file, i, mnt_pt, fs_type);
            }
            for(i=0; i<CP_F_NUM_INDICES; i++)
            {
                CP_F_PRINT(&job, &cp_file, i, mnt_pt, fs_type);
            }
        }
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    }while((ret = darshan_log_getfile(file, &job, &cp_file)) == 1);
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    /* Total Calc */
    if ((mask & OPTION_TOTAL))
    {
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        for(i=0; i<CP_NUM_INDICES; i++)
        {
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            printf("total_%s: %" PRId64 "\n",
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                   darshan_names[i], total.counters[i]);
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        }
        for(i=0; i<CP_F_NUM_INDICES; i++)
        {
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            printf("total_%s: %lf\n",
                   darshan_f_names[i], total.fcounters[i]);
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        }
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    }

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    /* Perf Calc */
    calc_perf(&job, file_hash, &pdata);
    if ((mask & OPTION_PERF))
    {
        printf("\n# performance\n");
        printf("# -----------\n");
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        printf("# total_bytes: %" PRId64 "\n", pdata.total_bytes);
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        printf("# slowest_rank_time: %lf\n", pdata.slowest_rank_time);
        printf("# slowest_rank_meta_time: %lf\n", pdata.slowest_rank_meta_time);
        printf("# shared_time_by_cumul: %lf\n", pdata.shared_time_by_cumul);
        printf("# shared_time_by_open: %lf\n", pdata.shared_time_by_open);
        printf("# shared_time_by_open_lastio: %lf\n", pdata.shared_time_by_open_lastio);
        printf("# shared_meta_time: %lf\n", pdata.shared_meta_time);
        printf("# agg_perf_by_cumul: %lf\n", pdata.agg_perf_by_cumul);
        printf("# agg_perf_by_open: %lf\n", pdata.agg_perf_by_open);
        printf("# agg_perf_by_open_lastio: %lf\n", pdata.agg_perf_by_open_lastio);
        printf("# agg_perf_by_slowest: %lf\n", pdata.agg_perf_by_slowest);
    }
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    if((mask & OPTION_META_RATIO))
    {
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        double avg_io_time = 0;
        double avg_meta_time = 0;

        for(i=0; i<job.nprocs; i++)
        {
            avg_io_time += pdata.rank_cumul_io_time[i];
            avg_meta_time += pdata.rank_cumul_md_time[i];
        }
        avg_io_time /= (double)job.nprocs;
        avg_meta_time /= (double)job.nprocs;
        avg_io_time += pdata.shared_time_by_cumul;
        avg_meta_time += pdata.shared_meta_time / (double)job.nprocs;

        printf("#<jobid>\t<uid>\t<procs>\t<start>\t<type>\t<avg_io_time>\t<avg_meta_time>\t<percent>\n");
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        printf("%" PRId64 "\t%" PRId64 "\t%" PRId64 "\t%" PRId64 "\tmeta-ratio\t%lf\t%lf\t%lf\n",
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            job.jobid, job.uid, job.nprocs, job.start_time, avg_io_time, avg_meta_time, avg_meta_time/avg_io_time);
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    }
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    /* Redundant read calc */
    if((mask & OPTION_RED_READ))
    {
        calc_red_read(&job, file_hash);
    }

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    /* shared small write call */
    if((mask & OPTION_SHARED_SMALL_WRITES))
    {
        calc_shared_small_writes(&job, file_hash);
    }

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    /* File Calc */
    calc_file(&job, file_hash, &fdata);
    if ((mask & OPTION_FILE))
    {
        printf("\n# files\n");
        printf("# -----\n");
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        printf("# total: %" PRId64 " %" PRId64 " %" PRId64 "\n",
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               fdata.total,
               fdata.total_size,
               fdata.total_max);
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        printf("# read_only: %" PRId64 " %" PRId64 " %" PRId64 "\n",
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               fdata.read_only,
               fdata.read_only_size,
               fdata.read_only_max);
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        printf("# write_only: %" PRId64 " %" PRId64 " %" PRId64 "\n",
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               fdata.write_only,
               fdata.write_only_size,
               fdata.write_only_max);
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        printf("# read_write: %" PRId64 " %" PRId64 " %" PRId64 "\n",
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               fdata.read_write,
               fdata.read_write_size,
               fdata.read_write_max);
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        printf("# unique: %" PRId64 " %" PRId64 " %" PRId64 "\n",
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               fdata.unique,
               fdata.unique_size,
               fdata.unique_max);
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        printf("# shared: %" PRId64 " %" PRId64 " %" PRId64 "\n",
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               fdata.shared,
               fdata.shared_size,
               fdata.shared_max);
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    }

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    if(ret < 0)
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    {
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        fprintf(stderr, "Error: failed to parse log file.\n");
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        fflush(stderr);
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        return(-1);
    }

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    for(i=0; i<mount_count; i++)
    {
        free(mnt_pts[i]);
        free(fs_types[i]);
    }
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    if(mount_count > 0)
    {
        free(devs);
        free(mnt_pts);
        free(fs_types);
    }
569
 
570
    darshan_log_close(file);
571 572 573 574 575 576 577

    HASH_ITER(hlink, file_hash, curr, tmp)
    {
        HASH_DELETE(hlink, file_hash, curr);
        free(curr);
    }

578 579
    return(0);
}
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void accum_file(struct darshan_file *dfile,
                hash_entry_t *hfile, 
                file_data_t *fdata)
{
    int i;

    hfile->procs += 1;

    if (dfile->rank == -1)
    {
        hfile->type |= FILETYPE_SHARED;
    }
    else if (hfile->procs > 1)
    {
        hfile->type &= (~FILETYPE_UNIQUE);
        hfile->type |= FILETYPE_PARTSHARED;
    }
    else
    {
        hfile->type |= FILETYPE_UNIQUE;
    }

    for (i = 0; i < CP_NUM_INDICES; i++)
    {
        switch(i)
        {
        case CP_DEVICE:
        case CP_MODE:
        case CP_MEM_ALIGNMENT:
        case CP_FILE_ALIGNMENT:
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            if(CP_FILE_PARTIAL(hfile))
                hfile->counters[i] = dfile->counters[i];
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            break;
        case CP_SIZE_AT_OPEN:
            if (hfile->counters[i] == -1)
            {
                hfile->counters[i] = dfile->counters[i];
            }
619
            if (hfile->counters[i] > dfile->counters[i] && !CP_FILE_PARTIAL(dfile))
620 621 622 623 624 625 626 627 628 629 630
            {
                hfile->counters[i] = dfile->counters[i];
            }
            break;
        case CP_MAX_BYTE_READ:
        case CP_MAX_BYTE_WRITTEN:
            if (hfile->counters[i] < dfile->counters[i])
            {
                hfile->counters[i] = dfile->counters[i];
            }
            break;
631 632 633 634 635 636 637 638 639 640 641 642 643 644 645

        case CP_STRIDE1_STRIDE:
        case CP_STRIDE2_STRIDE:
        case CP_STRIDE3_STRIDE:
        case CP_STRIDE4_STRIDE:
        case CP_ACCESS1_ACCESS:
        case CP_ACCESS2_ACCESS:
        case CP_ACCESS3_ACCESS:
        case CP_ACCESS4_ACCESS:
           /*
            * do nothing here because these will be stored
            * when the _COUNT is accessed.
            */
           break;
 
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        case CP_STRIDE1_COUNT:
        case CP_STRIDE2_COUNT:
        case CP_STRIDE3_COUNT:
        case CP_STRIDE4_COUNT:
        case CP_ACCESS1_COUNT:
        case CP_ACCESS2_COUNT:
        case CP_ACCESS3_COUNT:
        case CP_ACCESS4_COUNT:
            if (hfile->counters[i] < dfile->counters[i])
            {
                hfile->counters[i]   = dfile->counters[i];
                hfile->counters[i-4] = dfile->counters[i-4];
            }
            break;
        case CP_FASTEST_RANK:
        case CP_SLOWEST_RANK:
        case CP_FASTEST_RANK_BYTES:
        case CP_SLOWEST_RANK_BYTES:
            hfile->counters[i] = 0;
            break;
        case CP_MAX_READ_TIME_SIZE:
        case CP_MAX_WRITE_TIME_SIZE:
            break;
        default:
            hfile->counters[i] += dfile->counters[i];
            break;
        }
    }

    for (i = 0; i < CP_F_NUM_INDICES; i++)
    {
        switch(i)
        {
            case CP_F_FASTEST_RANK_TIME:
            case CP_F_SLOWEST_RANK_TIME:
            case CP_F_VARIANCE_RANK_TIME:
            case CP_F_VARIANCE_RANK_BYTES:
                hfile->fcounters[i] = 0;
                break;
            case CP_F_MAX_READ_TIME:
                if (hfile->fcounters[i] > dfile->fcounters[i])
                {
                    hfile->fcounters[i] = dfile->fcounters[i];
                    hfile->counters[CP_MAX_READ_TIME_SIZE] =
                        dfile->counters[CP_MAX_READ_TIME_SIZE];
                }
                break;
            case CP_F_MAX_WRITE_TIME:
                if (hfile->fcounters[i] > dfile->fcounters[i])
                {
                    hfile->fcounters[i] = dfile->fcounters[i];
                    hfile->counters[CP_MAX_WRITE_TIME_SIZE] =
                        dfile->counters[CP_MAX_WRITE_TIME_SIZE];
                }
                break;
            default:
                hfile->fcounters[i] += dfile->fcounters[i];
                break;
        }
    }

    return;
}


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static void calc_shared_small_writes(struct darshan_job *djob,
               hash_entry_t *file_hash)
{
    hash_entry_t *curr = NULL;
    hash_entry_t *tmp = NULL;
    int header_print = 0;

    HASH_ITER(hlink, file_hash, curr, tmp)
    {
        int i;
        uint64_t writes_lt_100k = 0;
        uint64_t writes_gt_100k = 0;

        /* only look at shared files that were written to */
        if(curr->type == FILETYPE_SHARED && curr->counters[CP_BYTES_WRITTEN] > 0 && curr->counters[CP_COLL_WRITES] == 0)
        {
            if(!header_print)
            {
                printf("#<jobid>\t<uid>\t<procs>\t<start>\t<type>\t<writes_lt_100k>\t<writes_gt_100k>\t<bytes_written>\n");
                header_print = 1;
            }

            for(i=CP_SIZE_WRITE_0_100; i<= CP_SIZE_WRITE_10K_100K; i++)
                writes_lt_100k += curr->counters[i];
            for(i=CP_SIZE_WRITE_100K_1M; i<= CP_SIZE_WRITE_1G_PLUS; i++)
                writes_gt_100k += curr->counters[i];

            printf("%" PRId64 "\t%" PRId64 "\t%" PRId64 "\t%" PRId64 "\tshared-small-writes\t%" PRIu64 "\t%" PRIu64 "\t%" PRIu64 "\t%" PRIu64 "\n",
                djob->jobid, djob->uid, djob->nprocs, djob->start_time, curr->hash, 
                writes_lt_100k, writes_gt_100k, curr->counters[CP_BYTES_WRITTEN]);
        }
    }

    return;
}

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static void calc_red_read(struct darshan_job *djob,
               hash_entry_t *file_hash)
{
    hash_entry_t *curr = NULL;
    hash_entry_t *tmp = NULL;
752 753
    uint64_t total_max = 0;
    uint64_t total_read = 0;
754
    int header_print = 0;
755 756 757 758 759

    HASH_ITER(hlink, file_hash, curr, tmp)
    {
        if((curr->counters[CP_MAX_BYTE_READ]+1) < curr->counters[CP_BYTES_READ])
        {
760 761 762 763 764
            if(!header_print)
            {
                printf("#<jobid>\t<uid>\t<procs>\t<start>\t<type>\t<file_hash>\t<max_byte_read>\t<bytes_read>\t<diff>\n");
                header_print = 1;
            }
765 766
            total_read += curr->counters[CP_BYTES_READ];
            total_max += (curr->counters[CP_MAX_BYTE_READ]+1);
767 768
            printf("%" PRId64 "\t%" PRId64 "\t%" PRId64 "\t%" PRId64 "\tred-read-file\t%" PRIu64 "\t%" PRIu64 "\t%" PRIu64 "\t%" PRIu64 "\n",
                djob->jobid, djob->uid, djob->nprocs, djob->start_time, curr->hash, curr->counters[CP_MAX_BYTE_READ], curr->counters[CP_BYTES_READ], curr->counters[CP_BYTES_READ] - (curr->counters[CP_MAX_BYTE_READ]+1));
769 770 771
        }
    }

772 773
    if(total_read > 0)
    {
774 775
        printf("%" PRId64 "\t%" PRId64 "\t%" PRId64 "\t%" PRId64 "\tred-read-summary\t%" PRIu64 "\t%" PRIu64 "\t%" PRIu64 "\t%" PRIu64 "\n",
            djob->jobid, djob->uid, djob->nprocs, djob->start_time, (int64_t)0, total_max, total_read, total_read-total_max);
776 777
    }

778 779 780
    return;
}

781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885
void calc_file(struct darshan_job *djob,
               hash_entry_t *file_hash, 
               file_data_t *fdata)
{
    hash_entry_t *curr = NULL;
    hash_entry_t *tmp = NULL;

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

    HASH_ITER(hlink, file_hash, curr, tmp)
    {
        int64_t max;
        int64_t r;
        int64_t w;

        max = max3(curr->counters[CP_SIZE_AT_OPEN],
                   curr->counters[CP_MAX_BYTE_READ],
                   curr->counters[CP_MAX_BYTE_WRITTEN]);

        r = (curr->counters[CP_POSIX_READS]+
             curr->counters[CP_POSIX_FREADS]+
             curr->counters[CP_INDEP_READS]+
             curr->counters[CP_COLL_READS]+
             curr->counters[CP_SPLIT_READS]+
             curr->counters[CP_NB_READS]);

        w = (curr->counters[CP_POSIX_WRITES]+
             curr->counters[CP_POSIX_FWRITES]+
             curr->counters[CP_INDEP_WRITES]+
             curr->counters[CP_COLL_WRITES]+
             curr->counters[CP_SPLIT_WRITES]+
             curr->counters[CP_NB_WRITES]);

        fdata->total += 1;
        fdata->total_size += max;
        fdata->total_max = max(fdata->total_max, max);

        if (r && !w)
        {
            fdata->read_only += 1;
            fdata->read_only_size += max;
            fdata->read_only_max = max(fdata->read_only_max, max);
        }

        if (!r && w)
        {
            fdata->write_only += 1;
            fdata->write_only_size += max;
            fdata->write_only_max = max(fdata->write_only_max, max);
        }

        if (r && w)
        {
            fdata->read_write += 1;
            fdata->read_write_size += max;
            fdata->read_write_max = max(fdata->read_write_max, max);
        }

        if ((curr->type & (FILETYPE_SHARED|FILETYPE_PARTSHARED)))
        {
            fdata->shared += 1;
            fdata->shared_size += max;
            fdata->shared_max = max(fdata->shared_max, max);
        }

        if ((curr->type & (FILETYPE_UNIQUE)))
        {
            fdata->unique += 1;
            fdata->unique_size += max;
            fdata->unique_max = max(fdata->unique_max, max);
        }
    }

    return;
}

void accum_perf(struct darshan_file *dfile,
                hash_entry_t *hfile,
                perf_data_t *pdata)
{
    int64_t mpi_file;

    pdata->total_bytes += dfile->counters[CP_BYTES_READ] +
                          dfile->counters[CP_BYTES_WRITTEN];

    mpi_file = dfile->counters[CP_INDEP_OPENS] +
               dfile->counters[CP_COLL_OPENS];

    /*
     * Calculation of Shared File Time
     *   Four Methods!!!!
     *     by_cumul: sum time counters and divide by nprocs
     *               (inaccurate if lots of variance between procs)
     *     by_open: difference between timestamp of open and close
     *              (inaccurate if file is left open without i/o happening)
     *     by_open_lastio: difference between timestamp of open and the
     *                     timestamp of last i/o
     *                     (similar to above but fixes case where file is left
     *                      open after io is complete)
     *     by_slowest: use slowest rank time from log data
     *                 (most accurate but requires newer log version)
     */
    if (dfile->rank == -1)
    {
        /* by_open (same for MPI or POSIX) */
886 887 888 889 890 891 892
        if (dfile->fcounters[CP_F_CLOSE_TIMESTAMP] >
            dfile->fcounters[CP_F_OPEN_TIMESTAMP])
        {
            pdata->shared_time_by_open +=
                dfile->fcounters[CP_F_CLOSE_TIMESTAMP] -
                dfile->fcounters[CP_F_OPEN_TIMESTAMP];
        }
893 894 895 896 897

        /* by_open_lastio (same for MPI or POSIX) */
        if (dfile->fcounters[CP_F_READ_END_TIMESTAMP] >
            dfile->fcounters[CP_F_WRITE_END_TIMESTAMP])
        {
898 899 900 901 902 903 904
            /* be careful: file may have been opened but not read or written */
            if(dfile->fcounters[CP_F_READ_END_TIMESTAMP] > dfile->fcounters[CP_F_OPEN_TIMESTAMP])
            {
                pdata->shared_time_by_open_lastio += 
                    dfile->fcounters[CP_F_READ_END_TIMESTAMP] - 
                    dfile->fcounters[CP_F_OPEN_TIMESTAMP];
            }
905 906 907
        }
        else
        {
908 909 910 911 912 913 914
            /* be careful: file may have been opened but not read or written */
            if(dfile->fcounters[CP_F_WRITE_END_TIMESTAMP] > dfile->fcounters[CP_F_OPEN_TIMESTAMP])
            {
                pdata->shared_time_by_open_lastio += 
                    dfile->fcounters[CP_F_WRITE_END_TIMESTAMP] - 
                    dfile->fcounters[CP_F_OPEN_TIMESTAMP];
            }
915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947
        }

        /* by_cumul */
        if (mpi_file)
        {
            pdata->shared_time_by_cumul +=
                dfile->fcounters[CP_F_MPI_META_TIME] +
                dfile->fcounters[CP_F_MPI_READ_TIME] +
                dfile->fcounters[CP_F_MPI_WRITE_TIME];
            pdata->shared_meta_time += dfile->fcounters[CP_F_MPI_META_TIME];
        }
        else
        {
            pdata->shared_time_by_cumul +=
                dfile->fcounters[CP_F_POSIX_META_TIME] +
                dfile->fcounters[CP_F_POSIX_READ_TIME] +
                dfile->fcounters[CP_F_POSIX_WRITE_TIME];
            pdata->shared_meta_time += dfile->fcounters[CP_F_POSIX_META_TIME];
        }

        /* by_slowest (same for MPI or POSIX) */
        pdata->shared_time_by_slowest +=
            dfile->fcounters[CP_F_SLOWEST_RANK_TIME];
    }

    /*
     * Calculation of Unique File Time
     *   record the data for each file and sum it 
     */
    else
    {
        if (mpi_file)
        {
948
#if 0
949 950 951 952
            hfile->cumul_time += dfile->fcounters[CP_F_MPI_META_TIME] +
                                dfile->fcounters[CP_F_MPI_READ_TIME] +
                                dfile->fcounters[CP_F_MPI_WRITE_TIME];
            hfile->meta_time += dfile->fcounters[CP_F_MPI_META_TIME];
953 954 955 956 957 958
#else
            pdata->rank_cumul_io_time[dfile->rank] += dfile->fcounters[CP_F_MPI_META_TIME] +
                                dfile->fcounters[CP_F_MPI_READ_TIME] +
                                dfile->fcounters[CP_F_MPI_WRITE_TIME];
            pdata->rank_cumul_md_time[dfile->rank] += dfile->fcounters[CP_F_MPI_META_TIME];
#endif
959 960 961
        }
        else
        {
962
#if 0
963 964 965 966
             hfile->cumul_time += dfile->fcounters[CP_F_POSIX_META_TIME] +
                                 dfile->fcounters[CP_F_POSIX_READ_TIME] +
                                 dfile->fcounters[CP_F_POSIX_WRITE_TIME];
             hfile->meta_time += dfile->fcounters[CP_F_POSIX_META_TIME];
967 968 969 970 971 972 973
#else
            pdata->rank_cumul_io_time[dfile->rank] += dfile->fcounters[CP_F_POSIX_META_TIME] +
                                dfile->fcounters[CP_F_POSIX_READ_TIME] +
                                dfile->fcounters[CP_F_POSIX_WRITE_TIME];
            pdata->rank_cumul_md_time[dfile->rank] += dfile->fcounters[CP_F_POSIX_META_TIME];

#endif
974
        }
975

976
#if 0
977 978
        pdata->rank_cumul_io_time[dfile->rank] += hfile->cumul_time;
        pdata->rank_cumul_md_time[dfile->rank] += hfile->meta_time;
979
#endif
980 981 982 983 984 985 986 987 988
    }

    return;
}

void calc_perf(struct darshan_job *djob,
               hash_entry_t *hash_rank_uniq,
               perf_data_t *pdata)
{
989
    int64_t i;
990 991 992 993 994 995

    pdata->shared_time_by_cumul =
        pdata->shared_time_by_cumul / (double)djob->nprocs;

    pdata->shared_meta_time = pdata->shared_meta_time / (double)djob->nprocs;

996
    for (i=0; i<djob->nprocs; i++)
997
    {
998
        if (pdata->rank_cumul_io_time[i] > pdata->slowest_rank_time)
999
        {
1000
            pdata->slowest_rank_time = pdata->rank_cumul_io_time[i];
1001
            pdata->slowest_rank_meta_time = pdata->rank_cumul_md_time[i];
1002 1003 1004
        }
    }

1005
    if (pdata->slowest_rank_time + pdata->shared_time_by_cumul)
1006
    pdata->agg_perf_by_cumul = ((double)pdata->total_bytes / 1048576.0) /
1007 1008 1009 1010
                                  (pdata->slowest_rank_time +
                                   pdata->shared_time_by_cumul);

    if (pdata->slowest_rank_time + pdata->shared_time_by_open)
1011
    pdata->agg_perf_by_open  = ((double)pdata->total_bytes / 1048576.0) / 
1012 1013 1014 1015
                                   (pdata->slowest_rank_time +
                                    pdata->shared_time_by_open);

    if (pdata->slowest_rank_time + pdata->shared_time_by_open_lastio)
1016 1017 1018
    pdata->agg_perf_by_open_lastio = ((double)pdata->total_bytes / 1048576.0) /
                                     (pdata->slowest_rank_time +
                                      pdata->shared_time_by_open_lastio);
1019

1020 1021
    if (pdata->slowest_rank_time + pdata->shared_time_by_slowest)
    pdata->agg_perf_by_slowest = ((double)pdata->total_bytes / 1048576.0) /
1022 1023
                                     (pdata->slowest_rank_time +
                                      pdata->shared_time_by_slowest);
1024 1025 1026

    return;
}