darshan-job-summary.pl.in 51.6 KB
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#!/usr/bin/env perl
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#
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#  (C) 2015 by Argonne National Laboratory.
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#      See COPYRIGHT in top-level directory.
#

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# Set via configure
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my $PREFIX="@prefix@";
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use warnings;
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use lib "@prefix@/lib";
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use TeX::Encode;
use Encode;
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use File::Temp qw/ tempdir /;
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use File::Basename;
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use Cwd;
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use Getopt::Long;
use English;
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use Number::Bytes::Human qw(format_bytes);
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use POSIX qw(strftime);
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#
# system commands used
#
my $darshan_parser = "$PREFIX/bin/darshan-parser";
my $pdflatex       = "pdflatex";
my $epstopdf       = "epstopdf";
my $cp             = "cp";
my $mv             = "mv";
my $gnuplot        = "gnuplot";

my $orig_dir = getcwd;
my $output_file = "summary.pdf";
my $verbose_flag = 0;
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my $summary_flag = 0;
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my $input_file = "";
my %posix_access_hash = ();
my %mpiio_access_hash = ();
my @access_size = ();
my %hash_files = ();
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my $partial_flag = 0;
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# data structures for calculating performance
my %hash_unique_file_time = ();
my $shared_file_time = 0;
my $total_job_bytes = 0;

process_args();

check_prereqs();

my $tmp_dir = tempdir( CLEANUP => !$verbose_flag );
if ($verbose_flag)
{
    print "verbose: $tmp_dir\n";
}

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open(PARSE_OUT, "$darshan_parser --base --perf $input_file |") || die("Can't execute \"$darshan_parser $input_file\": $!\n");
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open(FA_READ, ">$tmp_dir/file-access-read.dat") || die("error opening output file: $!\n");
open(FA_WRITE, ">$tmp_dir/file-access-write.dat") || die("error opening output file: $!\n");
open(FA_READ_SH, ">$tmp_dir/file-access-read-sh.dat") || die("error opening output file: $!\n");
open(FA_WRITE_SH, ">$tmp_dir/file-access-write-sh.dat") || die("error opening output file: $!\n");

my $last_read_start = 0;
my $last_write_start = 0;

my $cumul_read_indep = 0;
my $cumul_read_bytes_indep = 0;

my $cumul_write_indep = 0;
my $cumul_write_bytes_indep = 0;

my $cumul_read_shared = 0;
my $cumul_read_bytes_shared = 0;

my $cumul_write_shared = 0;
my $cumul_write_bytes_shared = 0;

my $cumul_meta_shared = 0;
my $cumul_meta_indep = 0;

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my $perf_layer = "";
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my $perf_est = 0.0;
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my $perf_mbytes = 0;
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my $current_module = "";
my $stdio_perf_est = 0.0;
my $stdio_perf_mbytes = 0;
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my $first_data_line = 1;
my %file_record_hash = ();
my %fs_data = ();

while($line = <PARSE_OUT>)
{
    chomp($line);

    if ($line =~ /^\s*$/)
    {
        # ignore blank lines
    }
    elsif ($line =~ /^#/)
    {
        if ($line =~ /^# exe: /)
        {
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            $f_save = "";
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            ($junk, $cmdline) = split(':', $line, 2);
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            # add escape characters if needed for special characters in
            # command line
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            if ($cmdline =~ /<unknown args>/)
            {
                # fortran "<unknown args> seems to throw things off,
                # so we don't encode that if it's present
                $f_save = substr($cmdline, -14);
                $cmdline = substr($cmdline, 0, -14); 
            }
            $cmdline = encode('latex', $cmdline) . $f_save;
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        }
        elsif ($line =~ /^# nprocs: /)
        {
            ($junk, $nprocs) = split(':', $line, 2);
        }
        elsif ($line =~ /^# run time: /)
        {
            ($junk, $runtime) = split(':', $line, 2);
        }
        elsif ($line =~ /^# start_time: /)
        {
            ($junk, $starttime) = split(':', $line, 2);
        }
        elsif ($line =~ /^# uid: /)
        {        
            ($junk, $uid) = split(':', $line, 2);
        }
        elsif ($line =~ /^# jobid: /)
        {
            ($junk, $jobid) = split(':', $line, 2);
        }
        elsif ($line =~ /^# darshan log version: /)
        {
            ($junk, $version) = split(':', $line, 2);
            $version =~ s/^\s+//;
        }
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        elsif ($line =~ /^# agg_perf_by_slowest: /)
        {
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            if($current_module eq "STDIO")
            {
                ($junk, $stdio_perf_est) = split(':', $line, 2);
                $stdio_perf_est = sprintf("%.2f", $stdio_perf_est);
            }
            elsif($current_module eq "POSIX")
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            {
                ($junk, $perf_est) = split(':', $line, 2);
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                $perf_est = sprintf("%.2f", $perf_est);
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                $perf_layer = "POSIX";
            }
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            elsif($current_module eq "MPI-IO")
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            {
                ($junk, $perf_est) = split(':', $line, 2);
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                $perf_est = sprintf("%.2f", $perf_est);
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                $perf_layer = "MPI-IO";
            }
        }
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        elsif ($line =~ /^# total_bytes: /)
        {
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            if($current_module eq "STDIO")
            {
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                ($junk, $stdio_perf_mbytes) = split(':', $line, 2);
                $stdio_perf_mbytes = $stdio_perf_mbytes / 1024 / 1024;
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                $stdio_perf_mbytes = sprintf("%.1f", $stdio_perf_mbytes);
            }
            elsif($perf_mbytes == 0)
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            {
                ($junk, $perf_mbytes) = split(':', $line, 2);
                $perf_mbytes = $perf_mbytes / 1024 / 1024;
                $perf_mbytes = sprintf("%.1f", $perf_mbytes);
            }
        }
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        elsif ($line =~ /^# \*WARNING\*: .* contains incomplete data!/)
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        {
            $partial_flag = 1;
        }
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        elsif ($line =~ /^# (.+) module data/)
        {
            $current_module = $1;
        }
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    }
    else
    {
        # parse line
        @fields = split(/[\t ]+/, $line);

        # encode the file system name to protect against special characters
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        $fields[6] = encode('latex', $fields[6]);
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        # is this our first piece of data?
        if($first_data_line)
        {
            $first_data_line = 0;
        }

        # is this a new file record?
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        if (!defined $file_record_hash{$fields[2]})
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        {
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            $file_record_hash{$fields[2]} = ();
            $file_record_hash{$fields[2]}{FILE_NAME} = $fields[5];
            $file_record_hash{$fields[2]}{RANK} = $fields[1];
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        }

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        $file_record_hash{$fields[2]}{$fields[3]} = $fields[4];
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        $summary{$fields[3]} += $fields[4];

        # accumulate independent and shared data as well as fs data
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        if ($fields[3] eq "POSIX_F_READ_TIME" || $fields[3] eq "STDIO_F_READ_TIME")
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        {
            if ($fields[1] == -1)
            {
                $cumul_read_shared += $fields[4];
            }
            else
            {
                $cumul_read_indep += $fields[4];
            }
        }
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        elsif ($fields[3] eq "POSIX_F_WRITE_TIME" || $fields[3] eq "STDIO_F_WRITE_TIME")
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        {
            if ($fields[1] == -1)
            {
                $cumul_write_shared += $fields[4];
            }
            else
            {
                $cumul_write_indep += $fields[4];
            }
        }
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        elsif ($fields[3] eq "POSIX_F_META_TIME" || $fields[3] eq "STDIO_F_META_TIME")
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        {
            if ($fields[1] == -1)
            {
                $cumul_meta_shared += $fields[4];
            }
            else
            {
                $cumul_meta_indep += $fields[4];
            }
        }
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        elsif ($fields[3] eq "POSIX_BYTES_READ" || $fields[3] eq "STDIO_BYTES_READ")
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        {
            if ($fields[1] == -1)
            {
                $cumul_read_bytes_shared += $fields[4];
            }
            else
            {
                $cumul_read_bytes_indep += $fields[4];
            }
            if (not defined $fs_data{$fields[6]})
            {
                $fs_data{$fields[6]} = [0,0];
            }
            $fs_data{$fields[6]}->[0] += $fields[4];
        }
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        elsif ($fields[3] eq "POSIX_BYTES_WRITTEN" || $fields[3] eq "STDIO_BYTES_WRITTEN")
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        {
            if ($fields[1] == -1)
            {
                $cumul_write_bytes_shared += $fields[4];
            }
            else
            {
                $cumul_write_bytes_indep += $fields[4];
            }
            if (not defined $fs_data{$fields[6]})
            {
                $fs_data{$fields[6]} = [0,0];
            }
            $fs_data{$fields[6]}->[1] += $fields[4];
        }

        # record start and end of reads and writes
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        elsif ($fields[3] eq "POSIX_F_READ_START_TIMESTAMP" ||
            $fields[3] eq "STDIO_F_READ_START_TIMESTAMP")
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        {
            # store until we find the end
            $last_read_start = $fields[4];
        }
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        elsif (($fields[3] eq "POSIX_F_READ_END_TIMESTAMP" || $fields[3] eq "STDIO_F_READ_END_TIMESTAMP") && $fields[4] != 0)
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        {
            # assume we got the read start already 
            my $xdelta = $fields[4] - $last_read_start;
            if($fields[1] == -1)
            {
                print FA_READ_SH "$last_read_start\t0\t$xdelta\t0\n";
            }
            else
            {
                print FA_READ "$last_read_start\t$fields[1]\t$xdelta\t0\n";
            }
        }
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        elsif ($fields[3] eq "POSIX_F_WRITE_START_TIMESTAMP" ||
            $fields[3] eq "STDIO_F_WRITE_START_TIMESTAMP")
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        {
            # store until we find the end
            $last_write_start = $fields[4];
        }
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        elsif (($fields[3] eq "POSIX_F_WRITE_END_TIMESTAMP" || $fields[3] eq "STDIO_F_WRITE_END_TIMESTAMP") && $fields[4] != 0)
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        {
            # assume we got the write start already 
            my $xdelta = $fields[4] - $last_write_start;
            if($fields[1] == -1)
            {
                print FA_WRITE_SH "$last_write_start\t0\t$xdelta\t0\n";
            }
            else
            {
                print FA_WRITE "$last_write_start\t$fields[1]\t$xdelta\t0\n";
            }
        }

        # record common access counter info
        elsif ($fields[3] =~ /^POSIX_ACCESS(.)_ACCESS/)
        {
            $access_size[$1] = $fields[4];
        }
        elsif ($fields[3] =~ /^MPIIO_ACCESS(.)_ACCESS/)
        {
            $access_size[$1] = $fields[4];
        }
        elsif ($fields[3] =~ /^POSIX_ACCESS(.)_COUNT/)
        {
            my $tmp_access_size = $access_size[$1];
            if(defined $posix_access_hash{$tmp_access_size})
            {
                $posix_access_hash{$tmp_access_size} += $fields[4];
            }
            else
            {
                $posix_access_hash{$tmp_access_size} = $fields[4];
            }
        }
        elsif ($fields[3] =~ /^MPIIO_ACCESS(.)_COUNT/)
        {
            my $tmp_access_size = $access_size[$1];
            if(defined $mpiio_access_hash{$tmp_access_size})
            {
                $mpiio_access_hash{$tmp_access_size} += $fields[4];
            }
            else
            {
                $mpiio_access_hash{$tmp_access_size} = $fields[4];
            }
        }
    }
}
close(PARSE_OUT) || die "darshan-parser failure: $! $?";

# Fudge one point at the end to make xrange match in read and write plots.
# For some reason I can't get the xrange command to work.  -Phil
print FA_READ "$runtime\t-1\t0\t0\n";
print FA_WRITE "$runtime\t-1\t0\t0\n";
print FA_READ_SH "$runtime\t0\t0\t0\n";
print FA_WRITE_SH "$runtime\t0\t0\t0\n";
close(FA_READ);
close(FA_READ_SH);
close(FA_WRITE);
close(FA_WRITE_SH);

#
# Exit out if there are no actual file accesses
#
if ($first_data_line)
{
    $strtm = strftime("%a %b %e %H:%M:%S %Y", localtime($starttime));

    print "This darshan log has no file records. No summary was produced.\n";
    print "    jobid: $jobid\n";
    print "      uid: $uid\n";
    print "starttime: $strtm ($starttime )\n";
    print "  runtime: $runtime (seconds)\n";
    print "   nprocs: $nprocs\n";
    print "  version: $version\n";
    exit(1);
}

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foreach $key (keys %file_record_hash)
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{
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    process_file_record($key, \%{$file_record_hash{$key}});
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}

# copy template files to tmp tmp_dir
system "$cp $PREFIX/share/*.gplt $tmp_dir/";
system "$cp $PREFIX/share/*.tex $tmp_dir/";


# summary of time spent in POSIX & MPI-IO functions
open(TIME_SUMMARY, ">$tmp_dir/time-summary.dat") || die("error opening output file:$!\n");
print TIME_SUMMARY "# <type>, <app time>, <read>, <write>, <meta>\n";
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if (defined $summary{POSIX_OPENS})
{
    print TIME_SUMMARY "POSIX, ", ((($runtime * $nprocs - $summary{POSIX_F_READ_TIME} -
        $summary{POSIX_F_WRITE_TIME} -
        $summary{POSIX_F_META_TIME})/($runtime * $nprocs)) * 100);
    print TIME_SUMMARY ", ", (($summary{POSIX_F_READ_TIME}/($runtime * $nprocs))*100);
    print TIME_SUMMARY ", ", (($summary{POSIX_F_WRITE_TIME}/($runtime * $nprocs))*100);
    print TIME_SUMMARY ", ", (($summary{POSIX_F_META_TIME}/($runtime * $nprocs))*100), "\n";
}
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if (defined $summary{MPIIO_INDEP_OPENS})
{
    print TIME_SUMMARY "MPI-IO, ", ((($runtime * $nprocs - $summary{MPIIO_F_READ_TIME} -
        $summary{MPIIO_F_WRITE_TIME} -
        $summary{MPIIO_F_META_TIME})/($runtime * $nprocs)) * 100);
    print TIME_SUMMARY ", ", (($summary{MPIIO_F_READ_TIME}/($runtime * $nprocs))*100);
    print TIME_SUMMARY ", ", (($summary{MPIIO_F_WRITE_TIME}/($runtime * $nprocs))*100);
    print TIME_SUMMARY ", ", (($summary{MPIIO_F_META_TIME}/($runtime * $nprocs))*100), "\n";
}
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if (defined $summary{STDIO_OPENS})
{
    print TIME_SUMMARY "STDIO, ", ((($runtime * $nprocs - $summary{STDIO_F_READ_TIME} -
        $summary{STDIO_F_WRITE_TIME} -
        $summary{STDIO_F_META_TIME})/($runtime * $nprocs)) * 100);
    print TIME_SUMMARY ", ", (($summary{STDIO_F_READ_TIME}/($runtime * $nprocs))*100);
    print TIME_SUMMARY ", ", (($summary{STDIO_F_WRITE_TIME}/($runtime * $nprocs))*100);
    print TIME_SUMMARY ", ", (($summary{STDIO_F_META_TIME}/($runtime * $nprocs))*100), "\n";
}
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close TIME_SUMMARY;

# counts of operations
open(PSX_OP_COUNTS, ">$tmp_dir/posix-op-counts.dat") || die("error opening output file: $!\n");
print PSX_OP_COUNTS "# <operation>, <POSIX count>\n";
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if (defined $summary{POSIX_OPENS})
{
    print PSX_OP_COUNTS
        "Read, ", $summary{POSIX_READS}, "\n",
        "Write, ", $summary{POSIX_WRITES}, "\n",
        "Open, ", $summary{POSIX_OPENS}, "\n",
        "Stat, ", $summary{POSIX_STATS}, "\n",
        "Seek, ", $summary{POSIX_SEEKS}, "\n",
        "Mmap, ", $summary{POSIX_MMAPS}, "\n",
        "Fsync, ", $summary{POSIX_FSYNCS} + $summary{POSIX_FDSYNCS}, "\n";
}
else
{
    print PSX_OP_COUNTS
        "Read, 0\n",
        "Write, 0\n",
        "Open, 0\n",
        "Stat, 0\n",
        "Seek, 0\n",
        "Mmap, 0\n",
        "Fsync, 0\n";
}
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close PSX_OP_COUNTS;

if (defined $summary{MPIIO_INDEP_OPENS})
{
    # TODO: do we want to look at MPI split or non-blocking i/o here? 
    open(MPI_OP_COUNTS, ">$tmp_dir/mpiio-op-counts.dat") || die("error opening output file: $!\n");
    print MPI_OP_COUNTS "# <operation>, <MPI Ind. count>, <MPI Coll. count>\n";
    print MPI_OP_COUNTS
        "Read, ", $summary{MPIIO_INDEP_READS}, ", ", $summary{MPIIO_COLL_READS}, "\n",
        "Write, ", $summary{MPIIO_INDEP_WRITES}, ", ", $summary{MPIIO_COLL_WRITES}, "\n",
        "Open, ", $summary{MPIIO_INDEP_OPENS},", ", $summary{MPIIO_COLL_OPENS}, "\n",
        "Stat, ", "0, 0\n",
        "Seek, ", "0, 0\n",
        "Mmap, ", "0, 0\n",
        "Fsync, ", "0, ", $summary{MPIIO_SYNCS}, "\n";
    close MPI_OP_COUNTS;
}

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if (defined $summary{STDIO_OPENS})
{
    open(STDIO_OP_COUNTS, ">$tmp_dir/stdio-op-counts.dat") || die("error opening output file: $!\n");
    print STDIO_OP_COUNTS "# <operation>, <STDIO count>\n";
    print STDIO_OP_COUNTS
        "Read, ", $summary{STDIO_READS}, "\n",
        "Write, ", $summary{STDIO_WRITES}, "\n",
        "Open, ", $summary{STDIO_OPENS}, "\n",
        "Stat, 0\n",
        "Seek, ", $summary{STDIO_SEEKS}, "\n",
        "Mmap, 0\n",
        "Fsync, ", $summary{STDIO_FLUSHES}, "\n";
    close STDIO_OP_COUNTS;
}

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# histograms of reads and writes (for POSIX and MPI-IO modules)
open (IO_HIST, ">$tmp_dir/posix-access-hist.dat") || die("error opening output file: $!\n");
print IO_HIST "# <size_range>, <POSIX_reads>, <POSIX_writes>\n";
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if (defined $summary{POSIX_OPENS})
{
    print IO_HIST "0-100, ",
                  $summary{POSIX_SIZE_READ_0_100}, ", ",
                  $summary{POSIX_SIZE_WRITE_0_100}, "\n";
    print IO_HIST "101-1K, ",
                  $summary{POSIX_SIZE_READ_100_1K}, ", ",
                  $summary{POSIX_SIZE_WRITE_100_1K}, "\n";
    print IO_HIST "1K-10K, ",
                  $summary{POSIX_SIZE_READ_1K_10K}, ", ",
                  $summary{POSIX_SIZE_WRITE_1K_10K}, "\n";
    print IO_HIST "10K-100K, ",
                  $summary{POSIX_SIZE_READ_10K_100K}, ", ",
                  $summary{POSIX_SIZE_WRITE_10K_100K}, "\n";
    print IO_HIST "100K-1M, ",
                  $summary{POSIX_SIZE_READ_100K_1M}, ", ",
                  $summary{POSIX_SIZE_WRITE_100K_1M}, "\n";
    print IO_HIST "1M-4M, ",
                  $summary{POSIX_SIZE_READ_1M_4M}, ", ",
                  $summary{POSIX_SIZE_WRITE_1M_4M}, "\n";
    print IO_HIST "4M-10M, ",
                  $summary{POSIX_SIZE_READ_4M_10M}, ", ",
                  $summary{POSIX_SIZE_WRITE_4M_10M}, "\n";
    print IO_HIST "10M-100M, ",
                  $summary{POSIX_SIZE_READ_10M_100M}, ", ",
                  $summary{POSIX_SIZE_WRITE_10M_100M}, "\n";
    print IO_HIST "100M-1G, ",
                  $summary{POSIX_SIZE_READ_100M_1G}, ", ",
                  $summary{POSIX_SIZE_WRITE_100M_1G}, "\n";
    print IO_HIST "1G+, ",
                  $summary{POSIX_SIZE_READ_1G_PLUS}, ", ",
                  $summary{POSIX_SIZE_WRITE_1G_PLUS}, "\n";
}
else
{
    print IO_HIST "0-100, 0, 0\n";
    print IO_HIST "101-1K, 0, 0\n";
    print IO_HIST "1K-10K, 0, 0\n";
    print IO_HIST "10K-100K, 0, 0\n";
    print IO_HIST "100K-1M, 0, 0\n";
    print IO_HIST "1M-4M, 0, 0\n";
    print IO_HIST "4M-10M, 0, 0\n";
    print IO_HIST "10M-100M, 0, 0\n";
    print IO_HIST "100M-1G, 0, 0\n";
    print IO_HIST "1G+, 0, 0\n";
}
535
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537
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540
541
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546
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549
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551
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555
556
557
558
559
560
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563
564
565
566
567
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570
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572
573
close IO_HIST;

if (defined $summary{MPIIO_INDEP_OPENS})
{
    open (IO_HIST, ">$tmp_dir/mpiio-access-hist.dat") || die("error opening output file: $!\n");
    print IO_HIST "# <size_range>, <MPIIO_reads>, <MPIIO_writes>\n";
    print IO_HIST "0-100, ",
                  $summary{MPIIO_SIZE_READ_AGG_0_100}, ", ",
                  $summary{MPIIO_SIZE_WRITE_AGG_0_100}, "\n";
    print IO_HIST "101-1K, ",
                  $summary{MPIIO_SIZE_READ_AGG_100_1K}, ", ",
                  $summary{MPIIO_SIZE_WRITE_AGG_100_1K}, "\n";
    print IO_HIST "1K-10K, ",
                  $summary{MPIIO_SIZE_READ_AGG_1K_10K}, ", ",
                  $summary{MPIIO_SIZE_WRITE_AGG_1K_10K}, "\n";
    print IO_HIST "10K-100K, ",
                  $summary{MPIIO_SIZE_READ_AGG_10K_100K}, ", ",
                  $summary{MPIIO_SIZE_WRITE_AGG_10K_100K}, "\n";
    print IO_HIST "100K-1M, ",
                  $summary{MPIIO_SIZE_READ_AGG_100K_1M}, ", ",
                  $summary{MPIIO_SIZE_WRITE_AGG_100K_1M}, "\n";
    print IO_HIST "1M-4M, ",
                  $summary{MPIIO_SIZE_READ_AGG_1M_4M}, ", ",
                  $summary{MPIIO_SIZE_WRITE_AGG_1M_4M}, "\n";
    print IO_HIST "4M-10M, ",
                  $summary{MPIIO_SIZE_READ_AGG_4M_10M}, ", ",
                  $summary{MPIIO_SIZE_WRITE_AGG_4M_10M}, "\n";
    print IO_HIST "10M-100M, ",
                  $summary{MPIIO_SIZE_READ_AGG_10M_100M}, ", ",
                  $summary{MPIIO_SIZE_WRITE_AGG_10M_100M}, "\n";
    print IO_HIST "100M-1G, ",
                  $summary{MPIIO_SIZE_READ_AGG_100M_1G}, ", ",
                  $summary{MPIIO_SIZE_WRITE_AGG_100M_1G}, "\n";
    print IO_HIST "1G+, ",
                  $summary{MPIIO_SIZE_READ_AGG_1G_PLUS}, ", ",
                  $summary{MPIIO_SIZE_WRITE_AGG_1G_PLUS}, "\n";
    close IO_HIST;
}

574
    # sequential and consecutive access patterns
575
576
open (PATTERN, ">$tmp_dir/pattern.dat") || die("error opening output file: $!\n");
print PATTERN "# op total sequential consecutive\n";
577
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if (defined $summary{POSIX_OPENS})
{
    print PATTERN "Read, ", $summary{POSIX_READS}, ", ",
        $summary{POSIX_SEQ_READS}, ", ", $summary{POSIX_CONSEC_READS}, "\n";
    print PATTERN "Write, ", $summary{POSIX_WRITES}, ", ",
        $summary{POSIX_SEQ_WRITES}, ", ", $summary{POSIX_CONSEC_WRITES}, "\n";
}
else
{
    print PATTERN "Read, 0, 0, 0\n";
    print PATTERN "Write, 0, 0, 0\n";
}
589
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close PATTERN;

# table of common access sizes
open(ACCESS_TABLE, ">$tmp_dir/access-table.tex") || die("error opening output file:$!\n");
print ACCESS_TABLE "
594
\\begin{threeparttable}
595
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597
\\begin{tabular}{r|r|r}
\\multicolumn{3}{c}{ } \\\\
\\multicolumn{3}{c}{Most Common Access Sizes} \\\\
598
\\multicolumn{3}{c}{(POSIX or MPI-IO)} \\\\
599
600
601
602
603
604
605
606
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608
609
610
611
612
613
614
615
616
617
618
619
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621
622
623
624
625
626
627
628
629
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631
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633
634
635
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637
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639
640
641
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643
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647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
\\hline
\& access size \& count \\\\
\\hline
\\hline
";

# sort POSIX & MPI-IO access sizes (descending)
my $i = 0;
my $tmp_access_count = 0;
foreach $value (keys %posix_access_hash) {
    if ($posix_access_hash{$value} > 0) {
        $tmp_access_count++;
        if ($tmp_access_count == 4) {
            last;
        }
    }
}
if ($tmp_access_count > 0)
{
    foreach $value (sort {$posix_access_hash{$b} <=> $posix_access_hash{$a} } keys %posix_access_hash)
    {
        if ($i == 4) {
            last;
        }
        if ($posix_access_hash{$value} == 0) {
            last;
        }

        if ($i == 0) {
            print ACCESS_TABLE "
            \\multirow{$tmp_access_count}{*}{POSIX} \& $value \& $posix_access_hash{$value} \\\\\n
            ";
        }
        else {
            print ACCESS_TABLE "
            \& $value \& $posix_access_hash{$value} \\\\\n
            ";
        }
        $i++;
    }
}

$i = 0;
$tmp_access_count = 0;
foreach $value (keys %mpiio_access_hash) {
    if ($mpiio_access_hash{$value} > 0) {
        $tmp_access_count++;
        if ($tmp_access_count == 4) {
            last;
        }
    }
}
if ($tmp_access_count > 0)
{
    foreach $value (sort {$mpiio_access_hash{$b} <=> $mpiio_access_hash{$a} } keys %mpiio_access_hash)
    {
        if ($i == 4) {
            last;
        }
        if ($mpiio_access_hash{$value} == 0) {
            last;
        }

        if ($i == 0) {
            print ACCESS_TABLE "
            \\hline
665
            \\multirow{$tmp_access_count}{*}{MPI-IO \\textbf{\\ddag}} \& $value \& $mpiio_access_hash{$value} \\\\\n
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
            ";
        }
        else {
            print ACCESS_TABLE "
            \& $value \& $mpiio_access_hash{$value} \\\\\n
            ";
        }
        $i++;
    }
}

print ACCESS_TABLE "
\\hline
\\end{tabular}
";
681
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690
691
if ($tmp_access_count > 0)
{
    print ACCESS_TABLE "
    \\begin{tablenotes}
    \\item[\\normalsize \\textbf{\\ddag}] \\scriptsize NOTE: MPI-IO accesses are given in terms of aggregate datatype size.
    \\end{tablenotes}
    ";
}
print ACCESS_TABLE "
\\end{threeparttable}
";
692
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close ACCESS_TABLE;

# file count table
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open(FILE_CNT_TABLE, ">$tmp_dir/file-count-table.tex") || die("error opening output file:$!\n");
print FILE_CNT_TABLE "
\\begin{tabular}{r|r|r|r}
\\multicolumn{4}{c}{ } \\\\
\\multicolumn{4}{c}{File Count Summary} \\\\
700
\\multicolumn{4}{c}{(estimated by POSIX I/O access offsets)} \\\\
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
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737
738
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740
741
742
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745
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748
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760
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764
765
766
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768
769
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771
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778
779
780
781
782
783
784
785
786
787
788
789
790
791
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793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
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818
819
820
821
822
823
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830
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851
852
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870
871
872
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\\hline
type \& number of files \& avg. size \& max size \\\\
\\hline
\\hline
";

my $counter;
my $sum;
my $max;
my $key;
my $avg;

$counter = 0;
$sum = 0;
$max = 0;
foreach $key (keys %hash_files) {
    $counter++;
    if($hash_files{$key}{'min_open_size'} >
        $hash_files{$key}{'max_size'})
    {
        $sum += $hash_files{$key}{'min_open_size'};
        if($hash_files{$key}{'min_open_size'} > $max)
        {
            $max = $hash_files{$key}{'min_open_size'};
        }
    }
    else
    {
        $sum += $hash_files{$key}{'max_size'};
        if($hash_files{$key}{'max_size'} > $max)
        {
            $max = $hash_files{$key}{'max_size'};
        }
    }
}
if($counter > 0) { $avg = $sum / $counter; }
else { $avg = 0; }
$avg = format_bytes($avg);
$max = format_bytes($max);
print FILE_CNT_TABLE "total opened \& $counter \& $avg \& $max \\\\\n";

$counter = 0;
$sum = 0;
$max = 0;
foreach $key (keys %hash_files) {
    if($hash_files{$key}{'was_read'} && !($hash_files{$key}{'was_written'}))
    {
        $counter++;
        if($hash_files{$key}{'min_open_size'} >
            $hash_files{$key}{'max_size'})
        {
            $sum += $hash_files{$key}{'min_open_size'};
            if($hash_files{$key}{'min_open_size'} > $max)
            {
                $max = $hash_files{$key}{'min_open_size'};
            }
        }
        else
        {
            $sum += $hash_files{$key}{'max_size'};
            if($hash_files{$key}{'max_size'} > $max)
            {
                $max = $hash_files{$key}{'max_size'};
            }
        }
    }
}
if($counter > 0) { $avg = $sum / $counter; }
else { $avg = 0; }
$avg = format_bytes($avg);
$max = format_bytes($max);
print FILE_CNT_TABLE "read-only files \& $counter \& $avg \& $max \\\\\n";

$counter = 0;
$sum = 0;
$max = 0;
foreach $key (keys %hash_files) {
    if(!($hash_files{$key}{'was_read'}) && $hash_files{$key}{'was_written'})
    {
        $counter++;
        if($hash_files{$key}{'min_open_size'} >
            $hash_files{$key}{'max_size'})
        {
            $sum += $hash_files{$key}{'min_open_size'};
            if($hash_files{$key}{'min_open_size'} > $max)
            {
                $max = $hash_files{$key}{'min_open_size'};
            }
        }
        else
        {
            $sum += $hash_files{$key}{'max_size'};
            if($hash_files{$key}{'max_size'} > $max)
            {
                $max = $hash_files{$key}{'max_size'};
            }
        }
    }
}
if($counter > 0) { $avg = $sum / $counter; }
else { $avg = 0; }
$avg = format_bytes($avg);
$max = format_bytes($max);
print FILE_CNT_TABLE "write-only files \& $counter \& $avg \& $max \\\\\n";

$counter = 0;
$sum = 0;
$max = 0;
foreach $key (keys %hash_files) {
    if($hash_files{$key}{'was_read'} && $hash_files{$key}{'was_written'})
    {
        $counter++;
        if($hash_files{$key}{'min_open_size'} >
            $hash_files{$key}{'max_size'})
        {
            $sum += $hash_files{$key}{'min_open_size'};
            if($hash_files{$key}{'min_open_size'} > $max)
            {
                $max = $hash_files{$key}{'min_open_size'};
            }
        }
        else
        {
            $sum += $hash_files{$key}{'max_size'};
            if($hash_files{$key}{'max_size'} > $max)
            {
                $max = $hash_files{$key}{'max_size'};
            }
        }
    }
}
if($counter > 0) { $avg = $sum / $counter; }
else { $avg = 0; }
$avg = format_bytes($avg);
$max = format_bytes($max);
print FILE_CNT_TABLE "read/write files \& $counter \& $avg \& $max \\\\\n";

$counter = 0;
$sum = 0;
$max = 0;
foreach $key (keys %hash_files) {
    if($hash_files{$key}{'was_written'} &&
        $hash_files{$key}{'min_open_size'} == 0 &&
        $hash_files{$key}{'max_size'} > 0)
    {
        $counter++;
        if($hash_files{$key}{'min_open_size'} >
            $hash_files{$key}{'max_size'})
        {
            $sum += $hash_files{$key}{'min_open_size'};
            if($hash_files{$key}{'min_open_size'} > $max)
            {
                $max = $hash_files{$key}{'min_open_size'};
            }
        }
        else
        {
            $sum += $hash_files{$key}{'max_size'};
            if($hash_files{$key}{'max_size'} > $max)
            {
                $max = $hash_files{$key}{'max_size'};
            }
        }
    }
}
if($counter > 0) { $avg = $sum / $counter; }
else { $avg = 0; }
$avg = format_bytes($avg);
$max = format_bytes($max);
print FILE_CNT_TABLE "created files \& $counter \& $avg \& $max \\\\\n";

print FILE_CNT_TABLE "
\\hline
\\end{tabular}
";
close(FILE_CNT_TABLE);
877
878
879
880
881
882

# generate per filesystem data
open(FS_TABLE, ">$tmp_dir/fs-data-table.tex") || die("error opening output files:$!\n");
print FS_TABLE "
\\begin{tabular}{c|r|r|r|r}
\\multicolumn{5}{c}{ } \\\\
883
\\multicolumn{5}{c}{Data Transfer Per Filesystem (POSIX and STDIO)} \\\\
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
\\hline
\\multirow{2}{*}{File System} \& \\multicolumn{2}{c}{Write} \\vline \& \\multicolumn{2}{c}{Read} \\\\
\\cline{2-5}
\& MiB \& Ratio \& MiB \& Ratio \\\\\
\\hline
\\hline
";

foreach $key (keys %fs_data)
{
    my $wr_total_mb = ($fs_data{$key}->[1] / (1024*1024));
    my $rd_total_mb = ($fs_data{$key}->[0] / (1024*1024));

    my $wr_total_rt;
    if ($cumul_write_bytes_shared+$cumul_write_bytes_indep)
    {
        $wr_total_rt = ($fs_data{$key}->[1] / ($cumul_write_bytes_shared + $cumul_write_bytes_indep));
    }
    else
    {
        $wr_total_rt = 0;
    }

    my $rd_total_rt;
    if ($cumul_read_bytes_shared+$cumul_read_bytes_indep)
    {
        $rd_total_rt = ($fs_data{$key}->[0] / ($cumul_read_bytes_shared + $cumul_read_bytes_indep));
    }
    else
    {
        $rd_total_rt = 0;
    }

    printf FS_TABLE "%s \& %.5f \& %.5f \& %.5f \& %.5f \\\\\n",
        $key, $wr_total_mb, $wr_total_rt, $rd_total_mb, $rd_total_rt;
}

print FS_TABLE "
\\hline
\\end{tabular}
";
close FS_TABLE;

# variance data
open(VAR_TABLE, ">$tmp_dir/variance-table.tex") || die("error opening output file:$!\n");
print VAR_TABLE "
\\begin{tabular}{c|r|r|r|r|r|r|r|r|r}
\\multicolumn{10}{c}{} \\\\
932
\\multicolumn{10}{c}{Variance in Shared Files (POSIX and STDIO)} \\\\
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
\\hline
File \& Processes \& \\multicolumn{3}{c}{Fastest} \\vline \&
\\multicolumn{3}{c}{Slowest} \\vline \& \\multicolumn{2}{c}{\$\\sigma\$} \\\\
\\cline{3-10}
Suffix \&  \& Rank \& Time \& Bytes \& Rank \& Time \& Bytes \& Time \& Bytes \\\\
\\hline
\\hline
";

my $curcount = 1;
foreach $key (sort { $hash_files{$b}{'slowest_time'} <=> $hash_files{$a}{'slowest_time'} } keys %hash_files) {

    if ($curcount > 20) { last; }

    if ($hash_files{$key}{'procs'} > 1)
    {
        my $vt = sprintf("%.3g", sqrt($hash_files{$key}{'variance_time'}));
        my $vb = sprintf("%.3g", sqrt($hash_files{$key}{'variance_bytes'}));
        my $fast_bytes = format_bytes($hash_files{$key}{'fastest_bytes'});
        my $slow_bytes = format_bytes($hash_files{$key}{'slowest_bytes'});
953
        my $name = encode('latex', "..." . substr($hash_files{$key}{'name'}, -12));
954
955
956
957
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959
960
961
962
963
964
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966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990

        print VAR_TABLE "
               $name \&
               $hash_files{$key}{'procs'} \&
               $hash_files{$key}{'fastest_rank'} \&
               $hash_files{$key}{'fastest_time'} \&
               $fast_bytes \&
               $hash_files{$key}{'slowest_rank'} \&
               $hash_files{$key}{'slowest_time'} \&
               $slow_bytes \&
               $vt \&
               $vb \\\\
         ";
        $curcount++;
    }
}

print VAR_TABLE "
\\hline
\\end{tabular}
";
close VAR_TABLE;

# calculate performance
##########################################################################

# what was the slowest time by any proc for unique file access?
my $slowest_uniq_time = 0;
if(keys %hash_unique_file_time > 0)
{
    $slowest_uniq_time < $_ and $slowest_uniq_time = $_ for values %hash_unique_file_time;
}
print("Slowest unique file time: $slowest_uniq_time\n");
print("Slowest shared file time: $shared_file_time\n");
print("Total bytes read and written by app (may be incorrect): $total_job_bytes\n");
my $tmp_total_time = $slowest_uniq_time+$shared_file_time;
print("Total absolute I/O time: $tmp_total_time\n");
991
print("**NOTE: above shared and unique file times calculated using MPI-IO timers if MPI-IO interface used on a given file, POSIX timers otherwise.\n");
992

993
994
995
996
997
998
#Exit here if user ask only for a summary
if ($summary_flag)
{
        exit(0);
}

999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
# move to tmp_dir
chdir $tmp_dir;

# gather data to be used for document title (headers/footers)
($executable, $junk) = split(' ', $cmdline, 2);
@parts = split('/', $executable);
$cmd = $parts[$#parts];
@timearray = localtime($starttime);
$year = $timearray[5] + 1900;
$mon = $timearray[4] + 1;
$mday = $timearray[3];

# detect gnuplot ranges for file access graphs
my $ymax = $nprocs;
my $yinc = int($nprocs / 8);
if($yinc == 0) {$yinc=1;}
my $ymaxtic = $nprocs-1;

# reformat cumulative i/o data for file access table
my $cri = $cumul_read_indep / $nprocs;
my $crbi = $cumul_read_bytes_indep / ($nprocs * 1048576.0);

my $cwi = $cumul_write_indep / $nprocs;
my $cwbi = $cumul_write_bytes_indep / ($nprocs * 1048576.0);

my $crs = $cumul_read_shared / $nprocs;
my $crbs = $cumul_read_bytes_shared / ($nprocs * 1048576.0);

my $cws = $cumul_write_shared / $nprocs;
my $cwbs = $cumul_write_bytes_shared / ($nprocs * 1048576.0);

my $cmi = $cumul_meta_indep / $nprocs;
my $cms = $cumul_meta_shared / $nprocs;

# do any extra work needed for plotting mpi-io graphs
if (defined $summary{MPIIO_INDEP_OPENS})
{
1036
    system "$gnuplot -e \"data_file='mpiio-access-hist.dat'; graph_title='MPI-IO Access Sizes {/Times-Bold=32 \263}'; \\
1037
1038
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1046
1047
1048
1049
    output_file='mpiio-access-hist.eps'\" access-hist-eps.gplt";
    system "$epstopdf mpiio-access-hist.eps";

    open(OP_COUNTS_PLT, ">>$tmp_dir/op-counts-eps.gplt") || die("error opening output file: $!\n");
    my $tmp_sz = -s "$tmp_dir/op-counts-eps.gplt";
    # overwrite existing newline
    truncate(OP_COUNTS_PLT, $tmp_sz-1);
    print OP_COUNTS_PLT ", \\
    \"mpiio-op-counts.dat\" using 2:xtic(1) title \"MPI-IO Indep.\", \\
    \"\" using 3 title \"MPI-IO Coll.\"\n";
    close OP_COUNTS_PLT;
}

Philip Carns's avatar
Philip Carns committed
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# do any extra work needed for plotting stdio graphs
if (defined $summary{STDIO_OPENS})
{
    open(OP_COUNTS_PLT, ">>$tmp_dir/op-counts-eps.gplt") || die("error opening output file: $!\n");
    my $tmp_sz = -s "$tmp_dir/op-counts-eps.gplt";
    # overwrite existing newline
    truncate(OP_COUNTS_PLT, $tmp_sz-1);
    print OP_COUNTS_PLT ", \\
    \"stdio-op-counts.dat\" using 2:xtic(1) title \"STDIO\"\n";
    close OP_COUNTS_PLT;
}

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# execute base gnuplot scripts
system "$gnuplot time-summary-eps.gplt";
system "$epstopdf time-summary.eps";
system "$gnuplot op-counts-eps.gplt";
system "$epstopdf op-counts.eps";
system "$gnuplot -e \"data_file='posix-access-hist.dat'; graph_title='POSIX Access Sizes'; \\
output_file='posix-access-hist.eps'\" access-hist-eps.gplt";
system "$epstopdf posix-access-hist.eps";
system "$gnuplot -e \"ymax=$ymax; yinc=$yinc; ymaxtic=$ymaxtic; runtime='$runtime'\" file-access-eps.gplt";
system "$epstopdf file-access-read.eps";
system "$epstopdf file-access-write.eps";
system "$epstopdf file-access-shared.eps";
system "$gnuplot pattern-eps.gplt";
system "$epstopdf pattern.eps";

# generate summary PDF
# NOTE: we pass arguments to the latex template using '\def' commands
# NOTE: an autoconf test determines if -halt-on-error is available and sets
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# __DARSHAN_PDFLATEX_HALT_ON_ERROR accordingly
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my $latex_cmd_line = "\"\\def\\titlecmd{$cmd} \\
    \\def\\titlemon{$mon} \\
    \\def\\titlemday{$mday} \\
    \\def\\titleyear{$year} \\
    \\def\\titlecmdline{$cmdline} \\
    \\def\\jobid{$jobid} \\
    \\def\\jobuid{$uid} \\
    \\def\\jobnprocs{$nprocs} \\
    \\def\\jobruntime{$runtime} \\
    \\def\\filecri{$cri} \\
    \\def\\filecrbi{$crbi} \\
    \\def\\filecwi{$cwi} \\
    \\def\\filecwbi{$cwbi} \\
    \\def\\filecrs{$crs} \\
    \\def\\filecrbs{$crbs} \\
    \\def\\filecws{$cws} \\
    \\def\\filecwbs{$cwbs} \\
    \\def\\filecmi{$cmi} \\
    \\def\\filecms{$cms} \\
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    \\def\\filecmi{$cmi} \\
    \\def\\perflayer{$perf_layer} \\
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    \\def\\perfest{$perf_est} \\
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    \\def\\perfbytes{$perf_mbytes} \\
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    \\def\\stdioperfest{$stdio_perf_est} \\
    \\def\\stdioperfbytes{$stdio_perf_mbytes} \\
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    \\input{summary.tex}\" \\
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    @__DARSHAN_PDFLATEX_HALT_ON_ERROR@";
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if ($partial_flag == 1)
{
    my $partial_log_flags = "\\def\\incompletelog{1} \\";
    $latex_cmd_line = substr($latex_cmd_line, 0, 1) . $partial_log_flags . substr($latex_cmd_line, 1);
}

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if (defined $summary{MPIIO_INDEP_OPENS})
{
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    my $mpiio_latex_flags = "\\def\\inclmpiio{1} \\";
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    $latex_cmd_line = substr($latex_cmd_line, 0, 1) . $mpiio_latex_flags . substr($latex_cmd_line, 1);
}

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if($perf_est > 0)
{
    my $perf_latex_flags = "\\def\\inclperf{1} \\";
    $latex_cmd_line = substr($latex_cmd_line, 0, 1) . $perf_latex_flags . substr($latex_cmd_line, 1);

}

if($stdio_perf_est > 0)
{
    my $stdio_latex_flags = "\\def\\inclstdio{1} \\";
    $latex_cmd_line = substr($latex_cmd_line, 0, 1) . $stdio_latex_flags . substr($latex_cmd_line, 1);

}
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$system_rc = system "$pdflatex $latex_cmd_line > latex.output";
if($system_rc)
{
    print("LaTeX generation (phase1) failed [$system_rc], aborting summary creation.\n");
    print("error log:\n");
    system("tail latex.output");
    exit(1);
}
$system_rc = system "$pdflatex $latex_cmd_line > latex.output2";
if($system_rc)
{
    print("LaTeX generation (phase2) failed [$system_rc], aborting summary creation.\n");
    print("error log:\n");
    system("tail latex.output2");
    exit(1);
}

# get back out of tmp dir and grab results
chdir $orig_dir;
system "$mv $tmp_dir/summary.pdf $output_file";


sub process_file_record
{
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    my $hash = $_[0];
    my(%file_record) = %{$_[1]};
    my $rank = $file_record{'RANK'};
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    if(!defined $file_record{'POSIX_OPENS'} && !defined $file_record{'STDIO_OPENS'})
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    {
        # ignore data records that don't have POSIX & MPI data
        return;
    }

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    if((!defined $file_record{'POSIX_OPENS'} || $file_record{'POSIX_OPENS'} == 0) &&
        (!defined $file_record{'STDIO_OPENS'} || $file_record{'STDIO_OPENS'} == 0) &&
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        (!defined $file_record{'MPIIO_INDEP_OPENS'} ||
        ($file_record{'MPIIO_INDEP_OPENS'} == 0 && $file_record{'MPIIO_COLL_OPENS'} == 0)))
    {
        # file wasn't really opened, just stat probably
        return;
    }

    # record smallest open time size reported by any rank
    # XXX this isn't doable since dropping SIZE_AT_OPEN counter
    $hash_files{$hash}{'min_open_size'} = 0;

    # record largest size that the file reached at any rank
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    if(defined $file_record{'POSIX_OPENS'})
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    {
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        if(!defined($hash_files{$hash}{'max_size'}) ||
            $hash_files{$hash}{'max_size'} <  
            ($file_record{'POSIX_MAX_BYTE_READ'} + 1))
        {
            $hash_files{$hash}{'max_size'} = 
                $file_record{'POSIX_MAX_BYTE_READ'} + 1;
        }
        if(!defined($hash_files{$hash}{'max_size'}) ||
            $hash_files{$hash}{'max_size'} <  
            ($file_record{'POSIX_MAX_BYTE_WRITTEN'} + 1))
        {
            $hash_files{$hash}{'max_size'} = 
                $file_record{'POSIX_MAX_BYTE_WRITTEN'} + 1;
        }
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    }
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    # for stdio as well
    if(defined $file_record{'STDIO_OPENS'})
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    {
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        if(!defined($hash_files{$hash}{'max_size'}) ||
            $hash_files{$hash}{'max_size'} <  
            ($file_record{'STDIO_MAX_BYTE_READ'} + 1))
        {
            $hash_files{$hash}{'max_size'} = 
                $file_record{'STDIO_MAX_BYTE_READ'} + 1;
        }
        if(!defined($hash_files{$hash}{'max_size'}) ||
            $hash_files{$hash}{'max_size'} <  
            ($file_record{'STDIO_MAX_BYTE_WRITTEN'} + 1))
        {
            $hash_files{$hash}{'max_size'} = 
                $file_record{'STDIO_MAX_BYTE_WRITTEN'} + 1;
        }
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    }

    # make sure there is an initial value for read and write flags
    if(!defined($hash_files{$hash}{'was_read'}))
    {
        $hash_files{$hash}{'was_read'} = 0;
    }
    if(!defined($hash_files{$hash}{'was_written'}))
    {
        $hash_files{$hash}{'was_written'} = 0;
    }

    if(defined $file_record{'MPIIO_INDEP_OPENS'} &&
        ($file_record{'MPIIO_INDEP_OPENS'} > 0 ||
        $file_record{'MPIIO_COLL_OPENS'} > 0))
    {
        # mpi file
        if($file_record{'MPIIO_INDEP_READS'} > 0 ||
            $file_record{'MPIIO_COLL_READS'} > 0 ||
            $file_record{'MPIIO_SPLIT_READS'} > 0 ||
            $file_record{'MPIIO_NB_READS'} > 0)
        {
            # data was read from the file
            $hash_files{$hash}{'was_read'} = 1;
        }
        if($file_record{'MPIIO_INDEP_WRITES'} > 0 ||
            $file_record{'MPIIO_COLL_WRITES'} > 0 ||
            $file_record{'MPIIO_SPLIT_WRITES'} > 0 ||
            $file_record{'MPIIO_NB_WRITES'} > 0)
        {
            # data was written to the file
            $hash_files{$hash}{'was_written'} = 1;
        }
    }
    else
    {
        # posix file
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        if((defined $file_record{'POSIX_READS'} && $file_record{'POSIX_READS'} > 0) || (defined $file_record{'STDIO_READS'} && $file_record{'STDIO_READS'} > 0))
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        {
            # data was read from the file
            $hash_files{$hash}{'was_read'} = 1;
        }
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        if((defined $file_record{'POSIX_WRITES'} && $file_record{'POSIX_WRITES'} > 0) || (defined $file_record{'STDIO_WRITES'} && $file_record{'STDIO_WRITES'} > 0))
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        {
            # data was written to the file 
            $hash_files{$hash}{'was_written'} = 1;
        }
    }

    $hash_files{$hash}{'name'} = $file_record{FILE_NAME};

    if ($rank == -1)
    {
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        if(defined $file_record{'POSIX_OPENS'} && $file_record{'POSIX_OPENS'} > 0)
        {
            $hash_files{$hash}{'procs'}          = $nprocs;
            $hash_files{$hash}{'slowest_rank'}   = $file_record{'POSIX_SLOWEST_RANK'};
            $hash_files{$hash}{'slowest_time'}   = $file_record{'POSIX_F_SLOWEST_RANK_TIME'};
            $hash_files{$hash}{'slowest_bytes'}  = $file_record{'POSIX_SLOWEST_RANK_BYTES'};
            $hash_files{$hash}{'fastest_rank'}   = $file_record{'POSIX_FASTEST_RANK'};
            $hash_files{$hash}{'fastest_time'}   = $file_record{'POSIX_F_FASTEST_RANK_TIME'};
            $hash_files{$hash}{'fastest_bytes'}  = $file_record{'POSIX_FASTEST_RANK_BYTES'};
            $hash_files{$hash}{'variance_time'}  = $file_record{'POSIX_F_VARIANCE_RANK_TIME'};
            $hash_files{$hash}{'variance_bytes'} = $file_record{'POSIX_F_VARIANCE_RANK_BYTES'};
        }
        elsif(defined $file_record{'STDIO_OPENS'} && $file_record{'STDIO_OPENS'} > 0)
        {
            $hash_files{$hash}{'procs'}          = $nprocs;
            $hash_files{$hash}{'slowest_rank'}   = $file_record{'STDIO_SLOWEST_RANK'};
            $hash_files{$hash}{'slowest_time'}   = $file_record{'STDIO_F_SLOWEST_RANK_TIME'};
            $hash_files{$hash}{'slowest_bytes'}  = $file_record{'STDIO_SLOWEST_RANK_BYTES'};
            $hash_files{$hash}{'fastest_rank'}   = $file_record{'STDIO_FASTEST_RANK'};
            $hash_files{$hash}{'fastest_time'}   = $file_record{'STDIO_F_FASTEST_RANK_TIME'};
            $hash_files{$hash}{'fastest_bytes'}  = $file_record{'STDIO_FASTEST_RANK_BYTES'};
            $hash_files{$hash}{'variance_time'}  = $file_record{'STDIO_F_VARIANCE_RANK_TIME'};
            $hash_files{$hash}{'variance_bytes'} = $file_record{'STDIO_F_VARIANCE_RANK_BYTES'};
        }
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    }
    else
    {
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        my $total_time = 0;
        my $total_bytes = 0;

        if(defined $file_record{'POSIX_OPENS'})
        {
            $total_time += $file_record{'POSIX_F_META_TIME'} +
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                         $file_record{'POSIX_F_READ_TIME'} +
                         $file_record{'POSIX_F_WRITE_TIME'};
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            $total_bytes += $file_record{'POSIX_BYTES_READ'} +
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                          $file_record{'POSIX_BYTES_WRITTEN'};
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        }
        if(defined $file_record{'STDIO_OPENS'})
        {
            $total_time += $file_record{'STDIO_F_META_TIME'} +
                         $file_record{'STDIO_F_READ_TIME'} +
                         $file_record{'STDIO_F_WRITE_TIME'};
            $total_bytes += $file_record{'STDIO_BYTES_READ'} +
                          $file_record{'STDIO_BYTES_WRITTEN'};
        }
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        if(!defined($hash_files{$hash}{'slowest_time'}) ||
           $hash_files{$hash}{'slowest_time'} < $total_time)
        {
            $hash_files{$hash}{'slowest_time'}  = $total_time;
            $hash_files{$hash}{'slowest_rank'}  = $rank;
            $hash_files{$hash}{'slowest_bytes'} = $total_bytes;
        }

        if(!defined($hash_files{$hash}{'fastest_time'}) ||
           $hash_files{$hash}{'fastest_time'} > $total_time)
        {
            $hash_files{$hash}{'fastest_time'}  = $total_time;
            $hash_files{$hash}{'fastest_rank'}  = $rank;
            $hash_files{$hash}{'fastest_bytes'} = $total_bytes;
        }

        if(!defined($hash_files{$hash}{'variance_time_S'}))
        {
            $hash_files{$hash}{'variance_time_S'} = 0;
            $hash_files{$hash}{'variance_time_T'} = $total_time;
            $hash_files{$hash}{'variance_time_n'} = 1;
            $hash_files{$hash}{'variance_bytes_S'} = 0;
            $hash_files{$hash}{'variance_bytes_T'} = $total_bytes;
            $hash_files{$hash}{'variance_bytes_n'} = 1;
            $hash_files{$hash}{'procs'} = 1;
            $hash_files{$hash}{'variance_time'} = 0;
            $hash_files{$hash}{'variance_bytes'} = 0;
        }
        else
        {
            my $n = $hash_files{$hash}{'variance_time_n'};
            my $m = 1;
            my $T = $hash_files{$hash}{'variance_time_T'};
            $hash_files{$hash}{'variance_time_S'} += ($m/($n*($n+$m)))*(($n/$m)*$total_time - $T)*(($n/$m)*$total_time - $T);
            $hash_files{$hash}{'variance_time_T'} += $total_time;
            $hash_files{$hash}{'variance_time_n'} += 1;

            $hash_files{$hash}{'variance_time'}    = $hash_files{$hash}{'variance_time_S'} / $hash_files{$hash}{'variance_time_n'};

            $n = $hash_files{$hash}{'variance_bytes_n'};
            $m = 1;
            $T = $hash_files{$hash}{'variance_bytes_T'};
            $hash_files{$hash}{'variance_bytes_S'} += ($m/($n*($n+$m)))*(($n/$m)*$total_bytes - $T)*(($n/$m)*$total_bytes - $T);
            $hash_files{$hash}{'variance_bytes_T'} += $total_bytes;
            $hash_files{$hash}{'variance_bytes_n'} += 1;

            $hash_files{$hash}{'variance_bytes'}    = $hash_files{$hash}{'variance_bytes_S'} / $hash_files{$hash}{'variance_bytes_n'};

            $hash_files{$hash}{'procs'} = $hash_files{$hash}{'variance_time_n'};
        }
    }

    # if this is a non-shared file, then add the time spent here to the
    # total for that particular rank
    # XXX mpiio or posix? should we do both or just pick mpiio over posix?
    if ($rank != -1)
    {
        # is it mpi-io or posix?
        if(defined $file_record{MPIIO_INDEP_OPENS} &&
            ($file_record{MPIIO_INDEP_OPENS} > 0 ||
            $file_record{MPIIO_COLL_OPENS} > 0))
        {
            # add up mpi times
            if(defined($hash_unique_file_time{$rank}))
            {
                $hash_unique_file_time{$rank} +=
                    $file_record{MPIIO_F_META_TIME} + 
                    $file_record{MPIIO_F_READ_TIME} + 
                    $file_record{MPIIO_F_WRITE_TIME};
            }
            else
            {
                $hash_unique_file_time{$rank} =
                    $file_record{MPIIO_F_META_TIME} + 
                    $file_record{MPIIO_F_READ_TIME} + 
                    $file_record{MPIIO_F_WRITE_TIME};
            }
        }
        else
        {
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            if(defined($file_record{POSIX_OPENS}))
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            {
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                # add up posix times
                if(defined($hash_unique_file_time{$rank}))
                {
                    $hash_unique_file_time{$rank} +=
                        $file_record{POSIX_F_META_TIME} + 
                        $file_record{POSIX_F_READ_TIME} + 
                        $file_record{POSIX_F_WRITE_TIME};
                }
                else
                {
                    $hash_unique_file_time{$rank} =
                        $file_record{POSIX_F_META_TIME} + 
                        $file_record{POSIX_F_READ_TIME} + 
                        $file_record{POSIX_F_WRITE_TIME};
                }
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            }
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            if(defined($file_record{STDIO_OPENS}))
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            {
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                # add up posix times
                if(defined($hash_unique_file_time{$rank}))
                {
                    $hash_unique_file_time{$rank} +=
                        $file_record{STDIO_F_META_TIME} + 
                        $file_record{STDIO_F_READ_TIME} + 
                        $file_record{STDIO_F_WRITE_TIME};
                }
                else
                {
                    $hash_unique_file_time{$rank} =
                        $file_record{STDIO_F_META_TIME} + 
                        $file_record{STDIO_F_READ_TIME} + 
                        $file_record{STDIO_F_WRITE_TIME};
                }
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            }
        }
    }
    else
    {
        # cumulative time spent on shared files by slowest proc
        # is it mpi-io or posix?
        if(defined $file_record{MPIIO_INDEP_OPENS} &&
            ($file_record{MPIIO_INDEP_OPENS} > 0 ||
            $file_record{MPIIO_COLL_OPENS} > 0))
        {
            $shared_file_time += $file_record{'MPIIO_F_SLOWEST_RANK_TIME'};
        }
        else
        {
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            if(defined $file_record{'POSIX_OPENS'} && $file_record{'POSIX_OPENS'} > 0)
            {
                $shared_file_time += $file_record{'POSIX_F_SLOWEST_RANK_TIME'};
            }
            elsif(defined $file_record{'STDIO_OPENS'} && $file_record{'STDIO_OPENS'} > 0)
            {
                $shared_file_time += $file_record{'STDIO_F_SLOWEST_RANK_TIME'};
            }
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        }
    }

    my $mpi_did_read = 0;
    if (defined $file_record{MPIIO_INDEP_OPENS})
    {
        $mpi_did_read =
            $file_record{'MPIIO_INDEP_READS'} + 
            $file_record{'MPIIO_COLL_READS'} + 
            $file_record{'MPIIO_NB_READS'} + 
            $file_record{'MPIIO_SPLIT_READS'};
    }

    # add up how many bytes were transferred
    if(defined $file_record{MPIIO_INDEP_OPENS} &&
        ($file_record{MPIIO_INDEP_OPENS} > 0 ||
        $file_record{MPIIO_COLL_OPENS} > 0) && (!($mpi_did_read)))
    {
        # mpi file that was only written; disregard any read accesses that
        # may have been performed for sieving at the posix level
        $total_job_bytes += $file_record{'POSIX_BYTES_WRITTEN'}; 
    }
    else
    {
        # normal case
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        if(defined $file_record{'POSIX_OPENS'})
        {
            $total_job_bytes += $file_record{'POSIX_BYTES_WRITTEN'} +
                $file_record{'POSIX_BYTES_READ'};
        }
        if(defined $file_record{'STDIO_OPENS'})
        {
            $total_job_bytes += $file_record{'STDIO_BYTES_WRITTEN'} +
            $file_record{'STDIO_BYTES_READ'};
        }
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    }
}
1493

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sub process_args
{
1496
    use vars qw( $opt_help $opt_output $opt_verbose $opt_summary);
1497
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    Getopt::Long::Configure("no_ignore_case", "bundling");
    GetOptions( "help",
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        "output=s",
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        "verbose",
        "summary");
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1514

    if($opt_help)
    {
        print_help();
        exit(0);
    }

    if($opt_output)
    {
        $output_file = $opt_output;
    }

1515
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    if($opt_verbose)
    {
        $verbose_flag = $opt_verbose;
    }

1520
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    if($opt_summary)
    {
        $summary_flag = $opt_summary;
    }
    
1525
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    # there should only be one remaining argument: the input file 
    if($#ARGV != 0)
    {
        print "Error: invalid arguments.\n";
        print_help();
        exit(1);
    }
1532

1533
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    $input_file = $ARGV[0];

1535
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1538
1539
    # give default output file a similar name to the input file.
    #   log_name => log_name.pdf
    if (not $opt_output)
    {
        $output_file = basename($input_file);
1540
        $output_file .= ".pdf";
1541
1542
    }

1543
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1545
    return;
}

1546
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1551
#
# Check for all support programs needed to generate the summary.
#
sub check_prereqs
{
    my $rc;
1552
    my $output;
1553
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1561
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1564
    my @bins = ($darshan_parser, $pdflatex, $epstopdf,
                $gnuplot, $cp, $mv);
    foreach my $bin (@bins)
    {
        $rc = checkbin($bin);
        if ($rc)
        {
            print("error: $bin not found in PATH\n");
            exit(1);
        }
    }

1565
    # check gnuplot version
1566
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1568
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1571
    $output = `$gnuplot --version`;
    if($? != 0)
    {
        print("error: failed to execute $gnuplot.\n");
        exit(1);
    }
1572

1573
    $output =~ /gnuplot (\d+)\.(\d+)/;
1574
    if($1 < 4 || ($1 < 5 && $2 < 2))
1575
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1579
    {
        print("error: detected $gnuplot version $1.$2, but darshan-job-summary requires at least 4.2.\n");
        exit(1);
    }

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1582
    return;
}

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#
# Execute which to see if the binary can be found in
# the users path.
#
sub checkbin($)
{
    my $binname = shift;
    my $rc;

    # save stdout/err
    open(SAVEOUT, ">&STDOUT");
    open(SAVEERR, ">&STDERR");

    # redirect stdout/error
    open(STDERR, '>/dev/null');
    open(STDOUT, '>/dev/null');
    $rc = system("which $binname");
    if ($rc)
    {
        $rc = 1;
    }
    close(STDOUT);
    close(STDERR);

    # suppress perl warning
    select(SAVEERR);
    select(SAVEOUT);

    # restore stdout/err
    open(STDOUT, ">&SAVEOUT");
    open(STDERR, ">&SAVEERR");

    return $rc;
}

1618
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1621
1622
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1624
1625
1626
sub print_help
{
    print <<EOF;

Usage: $PROGRAM_NAME <options> input_file

    --help          Prints this help message
    --output        Specifies a file to write pdf output to
                    (defaults to ./summary.pdf)
1627
    --summary       Print a very succinct I/O timing summary and exit
1628
1629
    --verbose       Prints and retains tmpdir used for LaTeX output

1630
1631
Purpose:

1632
1633
    This script reads a Darshan output file generated by a job and
    generates a pdf file summarizing job behavior.
1634
1635
1636
1637

EOF
    return;
}