blob: 175870da9815a5248c56d2ab2cfbcdd9b848a4fc (
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
|
#!/usr/bin/perl -w
use strict;
my $SCRIPT_DIR; BEGIN { use Cwd qw/ abs_path /; use File::Basename; $SCRIPT_DIR = dirname(abs_path($0)); push @INC, $SCRIPT_DIR; }
use Getopt::Long;
my $parallel = 1;
my $CWD=`pwd`; chomp $CWD;
my $BIN_DIR = "/chomes/redpony/cdyer-svn-repo/cdec/src";
my $OPTIMIZER = "$BIN_DIR/mr_em_train";
my $DECODER = "$BIN_DIR/cdec";
my $COMBINER_CACHE_SIZE = 150;
my $PARALLEL = "/chomes/redpony/svn-trunk/sa-utils/parallelize.pl";
die "Can't find $OPTIMIZER" unless -f $OPTIMIZER;
die "Can't execute $OPTIMIZER" unless -x $OPTIMIZER;
die "Can't find $DECODER" unless -f $DECODER;
die "Can't execute $DECODER" unless -x $DECODER;
die "Can't find $PARALLEL" unless -f $PARALLEL;
die "Can't execute $PARALLEL" unless -x $PARALLEL;
my $restart = '';
if ($ARGV[0] && $ARGV[0] eq '--restart') { shift @ARGV; $restart = 1; }
die "Usage: $0 [--restart] training.corpus weights.init grammar.file [grammar2.file] ...\n" unless (scalar @ARGV >= 3);
my $training_corpus = shift @ARGV;
my $initial_weights = shift @ARGV;
my @in_grammar_files = @ARGV;
my $pmem="2500mb";
my $nodes = 40;
my $max_iteration = 1000;
my $CFLAG = "-C 1";
unless ($parallel) { $CFLAG = "-C 500"; }
my @grammar_files;
for my $g (@in_grammar_files) {
unless ($g =~ /^\//) { $g = $CWD . '/' . $g; }
die "Can't find $g" unless -f $g;
push @grammar_files, $g;
}
print STDERR <<EOT;
EM TRAIN CONFIGURATION INFORMATION
Grammar file(s): @grammar_files
Training corpus: $training_corpus
Initial weights: $initial_weights
Decoder memory: $pmem
Nodes requested: $nodes
Max iterations: $max_iteration
restart: $restart
EOT
my $nodelist="1";
for (my $i=1; $i<$nodes; $i++) { $nodelist .= " 1"; }
my $iter = 1;
my $dir = "$CWD/emtrain";
if ($restart) {
die "$dir doesn't exist, but --restart specified!\n" unless -d $dir;
my $o = `ls -t $dir/weights.*`;
my ($a, @x) = split /\n/, $o;
if ($a =~ /weights.(\d+)\.gz$/) {
$iter = $1;
} else {
die "Unexpected file: $a!\n";
}
print STDERR "Restarting at iteration $iter\n";
} else {
die "$dir already exists!\n" if -e $dir;
mkdir $dir or die "Can't create $dir: $!";
unless ($initial_weights =~ /\.gz$/) {
`cp $initial_weights $dir/weights.1`;
`gzip -9 $dir/weights.1`;
} else {
`cp $initial_weights $dir/weights.1.gz`;
}
}
while ($iter < $max_iteration) {
my $cur_time = `date`; chomp $cur_time;
print STDERR "\nStarting iteration $iter...\n";
print STDERR " time: $cur_time\n";
my $start = time;
my $next_iter = $iter + 1;
my $gfile = '-g' . (join ' -g ', @grammar_files);
my $dec_cmd="$DECODER --feature_expectations -S 999 $CFLAG $gfile -n -w $dir/weights.$iter.gz < $training_corpus 2> $dir/deco.log.$iter";
my $opt_cmd = "$OPTIMIZER $gfile -o $dir/weights.$next_iter.gz";
my $pcmd = "$PARALLEL -e $dir/err -p $pmem --nodelist \"$nodelist\" -- ";
my $cmd = "";
if ($parallel) { $cmd = $pcmd; }
$cmd .= "$dec_cmd | $opt_cmd";
print STDERR "EXECUTING: $cmd\n";
my $result = `$cmd`;
if ($? != 0) {
die "Error running iteration $iter: $!";
}
chomp $result;
my $end = time;
my $diff = ($end - $start);
print STDERR " ITERATION $iter TOOK $diff SECONDS\n";
$iter = $next_iter;
if ($result =~ /1$/) {
print STDERR "Training converged.\n";
last;
}
}
print "FINAL WEIGHTS: $dir/weights.$iter\n";
|
