summaryrefslogtreecommitdiff
path: root/training/pro/pro.pl
blob: 8ebb5864db20b76b7b603654108796716601b3b2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
#!/usr/bin/env perl
use strict;
use File::Basename qw(basename);
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 IPC::Open2;
use POSIX ":sys_wait_h";
my $QSUB_CMD = qsub_args(mert_memory());
my $default_jobs = env_default_jobs();

my $UTILS_DIR="$SCRIPT_DIR/../utils";
require "$UTILS_DIR/libcall.pl";

# Default settings
my $srcFile;
my $refFiles;
my $bin_dir = $SCRIPT_DIR;
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_pro_generate_mapper_input.pl";
my $MAPPER = "$bin_dir/mr_pro_map";
my $REDUCER = "$bin_dir/mr_pro_reduce";
my $parallelize = "$UTILS_DIR/parallelize.pl";
my $libcall = "$UTILS_DIR/libcall.pl";
my $sentserver = "$UTILS_DIR/sentserver";
my $sentclient = "$UTILS_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 = 30;
my $iteration = 1;
my $best_weights;
my $psi = 1;
my $default_max_iter = 30;
my $max_iterations = $default_max_iter;
my $jobs = $default_jobs;   # number of decode nodes
my $pmem = "4g";
my $disable_clean = 0;
my %seen_weights;
my $help = 0;
my $epsilon = 0.0001;
my $dryrun = 0;
my $last_score = -10000000;
my $metric = "ibm_bleu";
my $dir;
my $iniFile;
my $weights;
my $use_make = 1;  # use make to parallelize
my $useqsub = 0;
my $initial_weights;
my $pass_suffix = '';
my $devset;

# regularization strength
my $reg = 500;
my $reg_previous = 5000;

# Process command-line options
if (GetOptions(
  "config=s" => \$iniFile,
  "weights=s" => \$initial_weights,
  "devset=s" => \$devset,
  "jobs=i" => \$jobs,
  "max-iterations=i" => \$max_iterations,
  "metric=s" => \$metric,
  "pass-suffix=s" => \$pass_suffix,
  "qsub" => \$useqsub,
  "help" => \$help,
  "reg=f" => \$reg,
  "reg-previous=f" => \$reg_previous,
  "pmem=s" => \$pmem,
  "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 $iniFile) { push @missing_args, "--config"; }
if (!defined $devset) { push @missing_args, "--devset"; }
if (!defined $initial_weights) { push @missing_args, "--weights"; }
die "Please specify missing arguments: " . join (', ', @missing_args) . "\n" if (@missing_args);

if ($metric =~ /^(combi|ter)$/i) {
  $lines_per_mapper = 5;
}

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){
	$dir = 'pro';
}
unless ($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 = check_output("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";
open(INI, $iniFile);

if (-e $dir) {
	die "ERROR: working dir $dir already exists\n\n";
} else {
	mkdir "$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:  $initial_weights
EOT
}

# Generate initial files and values
check_call("cp $iniFile $newIniFile");
check_call("cp $initial_weights $dir/weights.0");
$iniFile = $newIniFile;

my $refs = "$dir/dev.refs";
split_devset($devset, "$dir/dev.input.raw", $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
my @allweights;
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";
        push @allweights, "-w $dir/weights.$im1";
        `rm -f $dir/hgs/*.gz`;
	my $decoder_cmd = "$decoder -c $iniFile --weights$pass_suffix $weightsFile -O $dir/hgs";
	my $pcmd;
	if ($use_make) {
		$pcmd = "cat $srcFile | $parallelize --use-fork -p $pmem -e $logdir -j $jobs --";
	} else {
		$pcmd = "cat $srcFile | $parallelize -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 -r $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");
	print STDERR " - GENERATE TRAINING EXEMPLARS\n";
	my $mergeLog="$logdir/prune-merge.log.$iteration";

	my $score = 0;
	my $icc = 0;
	my $inweights="$dir/weights.$im1";
	$cmd="$MAPINPUT $dir/hgs > $dir/agenda.$im1";
	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 $dir/splag.$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;
	@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
	my @mapoutputs = ();
	for my $shard (@shards) {
		my $mapoutput = $shard;
		my $client_name = $shard;
		$client_name =~ s/mapinput.//;
		$client_name = "pro.$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 -r $refs -w $inweights -K $dir/kbest < $dir/splag.$im1/$shard > $dir/splag.$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 . "\|" . $jobid; }
		}
	}
	my @dev_outs = ();
	my @devtest_outs = ();
	@dev_outs = @mapoutputs;
	if ($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;
	my $dev_test_file = "$dir/splag.$im1/devtest.gz";
	print STDERR "\nRUNNING CLASSIFIER (REDUCER)\n";
	print STDERR unchecked_output("date");
	$cmd="cat @dev_outs | $REDUCER -w $dir/weights.$im1 -C $reg -y $reg_previous --interpolate_with_weights $psi";
        $cmd .= " > $dir/weights.$iteration";
	print STDERR "COMMAND:\n$cmd\n";
	check_bash_call($cmd);
	$lastWeightsFile = "$dir/weights.$iteration";
	$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 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 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";
		}
		$i++;
	}
	close SRC;
	close NEWSRC;
	die "Empty dev set!" if ($i == 0);
}

sub print_help {

	my $executable = basename($0); chomp $executable;
	print << "Help";

Usage: $executable [options]

	$executable [options]
		Runs a complete PRO optimization using the ini file specified.

Required:

	--config <cdec.ini>
		Decoder configuration file.

	--devset <files>
		Dev set source and reference data.

	--weights <file>
		Initial weights file (use empty file to start from 0)

General options:

	--help
		Print this message and exit.

	--max-iterations <M>
		Maximum number of iterations to run.  If not specified, defaults
		to $default_max_iter.

	--metric <method>
		Metric to optimize.
		Example values: IBM_BLEU, NIST_BLEU, Koehn_BLEU, TER, Combi

	--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.

	--workdir <dir>
		Directory for intermediate and output files.  If not specified, the
		name is derived from the ini filename.  Assuming that the ini
		filename begins with the decoder name and ends with ini, the default
		name of the working directory is inferred from the middle part of
		the filename.  E.g. an ini file named decoder.foo.ini would have
		a default working directory name foo.

Regularization options:

	--reg <F>
		l2 regularization strength [default=500]. The greater this value,
		the closer to zero the weights will be.

	--reg-previous <F>
		l2 penalty for moving away from the weights from the previous
		iteration. [default=5000]. The greater this value, the closer
		to the previous iteration's weights the next iteration's weights
		will be.

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)

Deprecated options:

	--interpolate-with-weights <F>
		[deprecated] At each iteration the resulting weights are
		interpolated with the weights from the previous iteration, with
		this factor. [default=1.0, i.e., no effect]

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;
}