From 671c21451542e2dd20e45b4033d44d8e8735f87b Mon Sep 17 00:00:00 2001
From: Chris Dyer <redpony@gmail.com>
Date: Thu, 3 Dec 2009 16:33:55 -0500
Subject: initial check in

---
 training/cluster-em.pl | 110 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100755 training/cluster-em.pl

(limited to 'training/cluster-em.pl')

diff --git a/training/cluster-em.pl b/training/cluster-em.pl
new file mode 100755
index 00000000..175870da
--- /dev/null
+++ b/training/cluster-em.pl
@@ -0,0 +1,110 @@
+#!/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";
+
-- 
cgit v1.2.3