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Diffstat (limited to 'training/dpmert/dpmert.pl')
| -rwxr-xr-x | training/dpmert/dpmert.pl | 618 |
1 files changed, 618 insertions, 0 deletions
diff --git a/training/dpmert/dpmert.pl b/training/dpmert/dpmert.pl new file mode 100755 index 00000000..559420f5 --- /dev/null +++ b/training/dpmert/dpmert.pl @@ -0,0 +1,618 @@ +#!/usr/bin/env perl +use strict; +my @ORIG_ARGV=@ARGV; +use Cwd qw(getcwd); +my $SCRIPT_DIR; BEGIN { use Cwd qw/ abs_path /; use File::Basename; $SCRIPT_DIR = dirname(abs_path($0)); push @INC, $SCRIPT_DIR, "$SCRIPT_DIR/../../environment", "$SCRIPT_DIR/../utils"; } + +# Skip local config (used for distributing jobs) if we're running in local-only mode +use LocalConfig; +use Getopt::Long; +use File::Basename qw(basename); +require "libcall.pl"; + +my $QSUB_CMD = qsub_args(mert_memory()); + +# Default settings +my $srcFile; # deprecated +my $refFiles; # deprecated +my $default_jobs = env_default_jobs(); +my $bin_dir = $SCRIPT_DIR; +my $util_dir = "$SCRIPT_DIR/../utils"; +die "Bin directory $bin_dir missing/inaccessible" unless -d $bin_dir; +my $FAST_SCORE="$bin_dir/../../mteval/fast_score"; +die "Can't execute $FAST_SCORE" unless -x $FAST_SCORE; +my $MAPINPUT = "$bin_dir/mr_dpmert_generate_mapper_input"; +my $MAPPER = "$bin_dir/mr_dpmert_map"; +my $REDUCER = "$bin_dir/mr_dpmert_reduce"; +my $parallelize = "$util_dir/parallelize.pl"; +my $libcall = "$util_dir/libcall.pl"; +my $sentserver = "$util_dir/sentserver"; +my $sentclient = "$util_dir/sentclient"; +my $LocalConfig = "$SCRIPT_DIR/../../environment/LocalConfig.pm"; + +my $SCORER = $FAST_SCORE; +die "Can't find $MAPPER" unless -x $MAPPER; +my $cdec = "$bin_dir/../../decoder/cdec"; +die "Can't find decoder in $cdec" unless -x $cdec; +die "Can't find $parallelize" unless -x $parallelize; +die "Can't find $libcall" unless -e $libcall; +my $decoder = $cdec; +my $lines_per_mapper = 200; +my $rand_directions = 15; +my $iteration = 1; +my $best_weights; +my $max_iterations = 15; +my $optimization_iters = 6; +my $jobs = $default_jobs; # number of decode nodes +my $pmem = "9g"; +my $disable_clean = 0; +my %seen_weights; +my $help = 0; +my $epsilon = 0.0001; +my $last_score = -10000000; +my $metric = "ibm_bleu"; +my $dir; +my $iniFile; +my $weights; +my $initialWeights; +my $bleu_weight=1; +my $use_make = 1; # use make to parallelize line search +my $useqsub; +my $pass_suffix = ''; +my $devset; +# Process command-line options +if (GetOptions( + "config=s" => \$iniFile, + "weights=s" => \$initialWeights, + "devset=s" => \$devset, + "jobs=i" => \$jobs, + "pass-suffix=s" => \$pass_suffix, + "help" => \$help, + "qsub" => \$useqsub, + "iterations=i" => \$max_iterations, + "pmem=s" => \$pmem, + "random-directions=i" => \$rand_directions, + "metric=s" => \$metric, + "source-file=s" => \$srcFile, + "output-dir=s" => \$dir, +) == 0 || @ARGV!=0 || $help) { + print_help(); + exit; +} + +if ($useqsub) { + $use_make = 0; + die "LocalEnvironment.pm does not have qsub configuration for this host. Cannot run with --qsub!\n" unless has_qsub(); +} + +my @missing_args = (); +if (defined $srcFile || defined $refFiles) { + die <<EOT; + + The options --ref-files and --source-file are no longer supported. + Please specify the input file and its reference translations with + --devset FILE + +EOT +} + +if (!defined $iniFile) { push @missing_args, "--config"; } +if (!defined $devset) { push @missing_args, "--devset"; } +if (!defined $initialWeights) { push @missing_args, "--weights"; } +die "Please specify missing arguments: " . join (', ', @missing_args) . "\nUse --help for more information.\n" if (@missing_args); + +if ($metric =~ /^(combi|ter)$/i) { + $lines_per_mapper = 40; +} elsif ($metric =~ /^meteor$/i) { + $lines_per_mapper = 2000; # start up time is really high for METEOR +} + + +my $nodelist; +my $host =check_output("hostname"); chomp $host; +my $bleu; +my $interval_count = 0; +my $logfile; +my $projected_score; + +# used in sorting scores +my $DIR_FLAG = '-r'; +if ($metric =~ /^ter$|^aer$/i) { + $DIR_FLAG = ''; +} + +unless ($dir){ + $dir = "dpmert"; +} +unless ($dir =~ /^\//){ # convert relative path to absolute path + my $basedir = check_output("pwd"); + chomp $basedir; + $dir = "$basedir/$dir"; +} + + +# Initializations and helper functions +srand; + +my @childpids = (); +my @cleanupcmds = (); + +sub cleanup { + print STDERR "Cleanup...\n"; + for my $pid (@childpids){ unchecked_call("kill $pid"); } + for my $cmd (@cleanupcmds){ unchecked_call("$cmd"); } + exit 1; +}; +# Always call cleanup, no matter how we exit +*CORE::GLOBAL::exit = sub{ cleanup(); }; +$SIG{INT} = "cleanup"; +$SIG{TERM} = "cleanup"; +$SIG{HUP} = "cleanup"; + +my $decoderBase = basename($decoder); chomp $decoderBase; +my $newIniFile = "$dir/$decoderBase.ini"; +my $inputFileName = "$dir/input"; +my $user = $ENV{"USER"}; + +# process ini file +-e $iniFile || die "Error: could not open $iniFile for reading\n"; + +sub dirsize { + opendir ISEMPTY,$_[0]; + return scalar(readdir(ISEMPTY))-1; +} +if (-e $dir) { + # allow preexisting logfile, binaries, but not dist-dpmert.pl outputs + die "ERROR: output directory $dir already exists (remove or use --output-dir dir)\n\n"; +} else { + mkdir "$dir" or die "Can't mkdir $dir: $!"; + mkdir "$dir/hgs" or die; + mkdir "$dir/scripts" or die; + print STDERR <<EOT; + DECODER: $decoder + INI FILE: $iniFile + WORKING DIR: $dir + DEVSET: $devset + EVAL METRIC: $metric + MAX ITERATIONS: $max_iterations + PARALLEL JOBS: $jobs + HEAD NODE: $host + PMEM (DECODING): $pmem + INITIAL WEIGHTS: $initialWeights +EOT +} + +# Generate initial files and values +check_call("cp $iniFile $newIniFile"); +check_call("cp $initialWeights $dir/weights.0"); +$iniFile = $newIniFile; + +split_devset($devset, "$dir/dev.input.raw", "$dir/dev.refs"); +my $refs = "-r $dir/dev.refs"; +my $newsrc = "$dir/dev.input"; +enseg("$dir/dev.input.raw", $newsrc); +$srcFile = $newsrc; +my $devSize = 0; +open F, "<$srcFile" or die "Can't read $srcFile: $!"; +while(<F>) { $devSize++; } +close F; + +unless($best_weights){ $best_weights = $weights; } +unless($projected_score){ $projected_score = 0.0; } +$seen_weights{$weights} = 1; + +my $random_seed = int(time / 1000); +my $lastWeightsFile; +my $lastPScore = 0; +# main optimization loop +while (1){ + print STDERR "\n\nITERATION $iteration\n==========\n"; + + if ($iteration > $max_iterations){ + print STDERR "\nREACHED STOPPING CRITERION: Maximum iterations\n"; + last; + } + # iteration-specific files + my $runFile="$dir/run.raw.$iteration"; + my $onebestFile="$dir/1best.$iteration"; + my $logdir="$dir/logs.$iteration"; + my $decoderLog="$logdir/decoder.sentserver.log.$iteration"; + my $scorerLog="$logdir/scorer.log.$iteration"; + check_call("mkdir -p $logdir"); + + + #decode + print STDERR "RUNNING DECODER AT "; + print STDERR unchecked_output("date"); + my $im1 = $iteration - 1; + my $weightsFile="$dir/weights.$im1"; + my $decoder_cmd = "$decoder -c $iniFile --weights$pass_suffix $weightsFile -O $dir/hgs"; + my $pcmd; + if ($use_make) { + $pcmd = "cat $srcFile | $parallelize --workdir $dir --use-fork -p $pmem -e $logdir -j $jobs --"; + } else { + $pcmd = "cat $srcFile | $parallelize --workdir $dir -p $pmem -e $logdir -j $jobs --"; + } + my $cmd = "$pcmd $decoder_cmd 2> $decoderLog 1> $runFile"; + print STDERR "COMMAND:\n$cmd\n"; + check_bash_call($cmd); + my $num_hgs; + my $num_topbest; + my $retries = 0; + while($retries < 5) { + $num_hgs = check_output("ls $dir/hgs/*.gz | wc -l"); + $num_topbest = check_output("wc -l < $runFile"); + print STDERR "NUMBER OF HGs: $num_hgs\n"; + print STDERR "NUMBER OF TOP-BEST HYPs: $num_topbest\n"; + if($devSize == $num_hgs && $devSize == $num_topbest) { + last; + } else { + print STDERR "Incorrect number of hypergraphs or topbest. Waiting for distributed filesystem and retrying...\n"; + sleep(3); + } + $retries++; + } + die "Dev set contains $devSize sentences, but we don't have topbest and hypergraphs for all these! Decoder failure? Check $decoderLog\n" if ($devSize != $num_hgs || $devSize != $num_topbest); + my $dec_score = check_output("cat $runFile | $SCORER $refs -m $metric"); + chomp $dec_score; + print STDERR "DECODER SCORE: $dec_score\n"; + + # save space + check_call("gzip -f $runFile"); + check_call("gzip -f $decoderLog"); + + # run optimizer + print STDERR "RUNNING OPTIMIZER AT "; + print STDERR unchecked_output("date"); + my $mergeLog="$logdir/prune-merge.log.$iteration"; + + my $score = 0; + my $icc = 0; + my $inweights="$dir/weights.$im1"; + for (my $opt_iter=1; $opt_iter<$optimization_iters; $opt_iter++) { + print STDERR "\nGENERATE OPTIMIZATION STRATEGY (OPT-ITERATION $opt_iter/$optimization_iters)\n"; + print STDERR unchecked_output("date"); + $icc++; + $cmd="$MAPINPUT -w $inweights -r $dir/hgs -s $devSize -d $rand_directions > $dir/agenda.$im1-$opt_iter"; + print STDERR "COMMAND:\n$cmd\n"; + check_call($cmd); + check_call("mkdir -p $dir/splag.$im1"); + $cmd="split -a 3 -l $lines_per_mapper $dir/agenda.$im1-$opt_iter $dir/splag.$im1/mapinput."; + print STDERR "COMMAND:\n$cmd\n"; + check_call($cmd); + opendir(DIR, "$dir/splag.$im1") or die "Can't open directory: $!"; + my @shards = grep { /^mapinput\./ } readdir(DIR); + closedir DIR; + die "No shards!" unless scalar @shards > 0; + my $joblist = ""; + my $nmappers = 0; + my @mapoutputs = (); + @cleanupcmds = (); + my %o2i = (); + my $first_shard = 1; + my $mkfile; # only used with makefiles + my $mkfilename; + if ($use_make) { + $mkfilename = "$dir/splag.$im1/domap.mk"; + open $mkfile, ">$mkfilename" or die "Couldn't write $mkfilename: $!"; + print $mkfile "all: $dir/splag.$im1/map.done\n\n"; + } + my @mkouts = (); # only used with makefiles + for my $shard (@shards) { + my $mapoutput = $shard; + my $client_name = $shard; + $client_name =~ s/mapinput.//; + $client_name = "dpmert.$client_name"; + $mapoutput =~ s/mapinput/mapoutput/; + push @mapoutputs, "$dir/splag.$im1/$mapoutput"; + $o2i{"$dir/splag.$im1/$mapoutput"} = "$dir/splag.$im1/$shard"; + my $script = "$MAPPER -s $srcFile -m $metric $refs < $dir/splag.$im1/$shard | sort -t \$'\\t' -k 1 > $dir/splag.$im1/$mapoutput"; + if ($use_make) { + my $script_file = "$dir/scripts/map.$shard"; + open F, ">$script_file" or die "Can't write $script_file: $!"; + print F "#!/bin/bash\n"; + print F "$script\n"; + close F; + my $output = "$dir/splag.$im1/$mapoutput"; + push @mkouts, $output; + chmod(0755, $script_file) or die "Can't chmod $script_file: $!"; + if ($first_shard) { print STDERR "$script\n"; $first_shard=0; } + print $mkfile "$output: $dir/splag.$im1/$shard\n\t$script_file\n\n"; + } else { + my $script_file = "$dir/scripts/map.$shard"; + open F, ">$script_file" or die "Can't write $script_file: $!"; + print F "$script\n"; + close F; + if ($first_shard) { print STDERR "$script\n"; $first_shard=0; } + + $nmappers++; + my $qcmd = "$QSUB_CMD -N $client_name -o /dev/null -e $logdir/$client_name.ER $script_file"; + my $jobid = check_output("$qcmd"); + chomp $jobid; + $jobid =~ s/^(\d+)(.*?)$/\1/g; + $jobid =~ s/^Your job (\d+) .*$/\1/; + push(@cleanupcmds, "qdel $jobid 2> /dev/null"); + print STDERR " $jobid"; + if ($joblist == "") { $joblist = $jobid; } + else {$joblist = $joblist . "\|" . $jobid; } + } + } + if ($use_make) { + print $mkfile "$dir/splag.$im1/map.done: @mkouts\n\ttouch $dir/splag.$im1/map.done\n\n"; + close $mkfile; + my $mcmd = "make -j $jobs -f $mkfilename"; + print STDERR "\nExecuting: $mcmd\n"; + check_call($mcmd); + } else { + print STDERR "\nLaunched $nmappers mappers.\n"; + sleep 8; + print STDERR "Waiting for mappers to complete...\n"; + while ($nmappers > 0) { + sleep 5; + my @livejobs = grep(/$joblist/, split(/\n/, unchecked_output("qstat | grep -v ' C '"))); + $nmappers = scalar @livejobs; + } + print STDERR "All mappers complete.\n"; + } + my $tol = 0; + my $til = 0; + for my $mo (@mapoutputs) { + my $olines = get_lines($mo); + my $ilines = get_lines($o2i{$mo}); + $tol += $olines; + $til += $ilines; + die "$mo: output lines ($olines) doesn't match input lines ($ilines)" unless $olines==$ilines; + } + print STDERR "Results for $tol/$til lines\n"; + print STDERR "\nSORTING AND RUNNING VEST REDUCER\n"; + print STDERR unchecked_output("date"); + $cmd="sort -t \$'\\t' -k 1 @mapoutputs | $REDUCER -m $metric > $dir/redoutput.$im1"; + print STDERR "COMMAND:\n$cmd\n"; + check_bash_call($cmd); + $cmd="sort -nk3 $DIR_FLAG '-t|' $dir/redoutput.$im1 | head -1"; + # sort returns failure even when it doesn't fail for some reason + my $best=unchecked_output("$cmd"); chomp $best; + print STDERR "$best\n"; + my ($oa, $x, $xscore) = split /\|/, $best; + $score = $xscore; + print STDERR "PROJECTED SCORE: $score\n"; + if (abs($x) < $epsilon) { + print STDERR "\nOPTIMIZER: no score improvement: abs($x) < $epsilon\n"; + last; + } + my $psd = $score - $last_score; + $last_score = $score; + if (abs($psd) < $epsilon) { + print STDERR "\nOPTIMIZER: no score improvement: abs($psd) < $epsilon\n"; + last; + } + my ($origin, $axis) = split /\s+/, $oa; + + my %ori = convert($origin); + my %axi = convert($axis); + + my $finalFile="$dir/weights.$im1-$opt_iter"; + open W, ">$finalFile" or die "Can't write: $finalFile: $!"; + my $norm = 0; + for my $k (sort keys %ori) { + my $dd = $ori{$k} + $axi{$k} * $x; + $norm += $dd * $dd; + } + $norm = sqrt($norm); + $norm = 1; + for my $k (sort keys %ori) { + my $v = ($ori{$k} + $axi{$k} * $x) / $norm; + print W "$k $v\n"; + } + check_call("rm $dir/splag.$im1/*"); + $inweights = $finalFile; + } + $lastWeightsFile = "$dir/weights.$iteration"; + check_call("cp $inweights $lastWeightsFile"); + if ($icc < 2) { + print STDERR "\nREACHED STOPPING CRITERION: score change too little\n"; + last; + } + $lastPScore = $score; + $iteration++; + print STDERR "\n==========\n"; +} + +check_call("cp $lastWeightsFile $dir/weights.final"); +print STDERR "\nFINAL WEIGHTS: $dir/weights.final\n(Use -w <this file> with the decoder)\n\n"; +print STDOUT "$dir/weights.final\n"; +exit 0; + + +sub get_lines { + my $fn = shift @_; + open FL, "<$fn" or die "Couldn't read $fn: $!"; + my $lc = 0; + while(<FL>) { $lc++; } + return $lc; +} + +sub read_weights_file { + my ($file) = @_; + open F, "<$file" or die "Couldn't read $file: $!"; + my @r = (); + my $pm = -1; + while(<F>) { + next if /^#/; + next if /^\s*$/; + chomp; + if (/^(.+)\s+(.+)$/) { + my $m = $1; + my $w = $2; + die "Weights out of order: $m <= $pm" unless $m > $pm; + push @r, $w; + } else { + warn "Unexpected feature name in weight file: $_"; + } + } + close F; + return join ' ', @r; +} + +sub update_weights_file { + my ($neww, $rfn, $rpts) = @_; + my @feats = @$rfn; + my @pts = @$rpts; + my $num_feats = scalar @feats; + my $num_pts = scalar @pts; + die "$num_feats (num_feats) != $num_pts (num_pts)" unless $num_feats == $num_pts; + open G, ">$neww" or die; + for (my $i = 0; $i < $num_feats; $i++) { + my $f = $feats[$i]; + my $lambda = $pts[$i]; + print G "$f $lambda\n"; + } + close G; +} + +sub enseg { + my $src = shift; + my $newsrc = shift; + open(SRC, $src); + open(NEWSRC, ">$newsrc"); + my $i=0; + while (my $line=<SRC>){ + chomp $line; + if ($line =~ /^\s*<seg/i) { + if($line =~ /id="[0-9]+"/) { + print NEWSRC "$line\n"; + } else { + die "When using segments with pre-generated <seg> tags, you must include a zero-based id attribute"; + } + } else { + print NEWSRC "<seg id=\"$i\">$line</seg>\n"; + } + $i++; + } + close SRC; + close NEWSRC; +} + +sub print_help { + + my $executable = basename($0); chomp $executable; + print << "Help"; + +Usage: $executable [options] <ini file> + + $executable [options] + Runs a complete MERT optimization. Required options are --weights, + --devset, and --config. + +Options: + + --config <file> [-c <file>] + The decoder configuration file. + + --devset <file> [-d <file>] + The source *and* references for the development set. + + --weights <file> [-w <file>] + A file specifying initial feature weights. The format is + FeatureName_1 value1 + FeatureName_2 value2 + **All and only the weights listed in <file> will be optimized!** + + --metric <name> + Metric to optimize. + Example values: IBM_BLEU, NIST_BLEU, Koehn_BLEU, TER, Combi + + --iterations <M> + Maximum number of iterations to run. If not specified, defaults + to 10. + + --pass-suffix <S> + If the decoder is doing multi-pass decoding, the pass suffix "2", + "3", etc., is used to control what iteration of weights is set. + + --rand-directions <num> + MERT will attempt to optimize along all of the principle directions, + set this parameter to explore other directions. Defaults to 5. + + --output-dir <dir> + Directory for intermediate and output files. + + --help + Print this message and exit. + +Job control options: + + --jobs <I> + Number of decoder processes to run in parallel. [default=$default_jobs] + + --qsub + Use qsub to run jobs in parallel (qsub must be configured in + environment/LocalEnvironment.pm) + + --pmem <N> + Amount of physical memory requested for parallel decoding jobs + (used with qsub requests only) + +Help +} + +sub convert { + my ($str) = @_; + my @ps = split /;/, $str; + my %dict = (); + for my $p (@ps) { + my ($k, $v) = split /=/, $p; + $dict{$k} = $v; + } + return %dict; +} + + + +sub cmdline { + return join ' ',($0,@ORIG_ARGV); +} + +#buggy: last arg gets quoted sometimes? +my $is_shell_special=qr{[ \t\n\\><|&;"'`~*?{}$!()]}; +my $shell_escape_in_quote=qr{[\\"\$`!]}; + +sub escape_shell { + my ($arg)=@_; + return undef unless defined $arg; + if ($arg =~ /$is_shell_special/) { + $arg =~ s/($shell_escape_in_quote)/\\$1/g; + return "\"$arg\""; + } + return $arg; +} + +sub escaped_shell_args { + return map {local $_=$_;chomp;escape_shell($_)} @_; +} + +sub escaped_shell_args_str { + return join ' ',&escaped_shell_args(@_); +} + +sub escaped_cmdline { + return "$0 ".&escaped_shell_args_str(@ORIG_ARGV); +} + +sub split_devset { + my ($infile, $outsrc, $outref) = @_; + open F, "<$infile" or die "Can't read $infile: $!"; + open S, ">$outsrc" or die "Can't write $outsrc: $!"; + open R, ">$outref" or die "Can't write $outref: $!"; + while(<F>) { + chomp; + my ($src, @refs) = split /\s*\|\|\|\s*/; + die "Malformed devset line: $_\n" unless scalar @refs > 0; + print S "$src\n"; + print R join(' ||| ', @refs) . "\n"; + } + close R; + close S; + close F; +} + |