From 7dd2effc2bb8bf702aee31bf6c1a9f3499a1e59f Mon Sep 17 00:00:00 2001
From: Patrick Simianer <simianer@cl.uni-heidelberg.de>
Date: Tue, 17 Sep 2013 21:18:27 +0200
Subject: separate inis for shards

---
 training/dtrain/dtrain.cc      |  2 +-
 training/dtrain/parallelize.rb | 13 ++++++++++++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/training/dtrain/dtrain.cc b/training/dtrain/dtrain.cc
index 2d090666..4521e794 100644
--- a/training/dtrain/dtrain.cc
+++ b/training/dtrain/dtrain.cc
@@ -406,8 +406,8 @@ main(int argc, char** argv)
       if (pclr) {
         SparseVector<weight_t>::iterator it = sum_up.begin();
         for (; it != lambdas.end(); ++it) {
-          lambdas[it->first] += it->second * max(0.00000001, eta/(eta+learning_rates[it->first]));
           learning_rates[it->first]++;
+          lambdas[it->first] += it->second / learning_rates[it->first]; //* max(0.00000001, eta/(eta+learning_rates[it->first]));
         }
       }
 
diff --git a/training/dtrain/parallelize.rb b/training/dtrain/parallelize.rb
index 285f3c9b..66a61b3d 100755
--- a/training/dtrain/parallelize.rb
+++ b/training/dtrain/parallelize.rb
@@ -21,6 +21,7 @@ opts = Trollop::options do
   opt :qsub, "use qsub", :type => :bool, :default => false
   opt :dtrain_binary, "path to dtrain binary", :type => :string
   opt :extra_qsub, "extra qsub args", :type => :string, :default => ""
+  opt :per_shard_decoder_configs, "give special decoder config per shard", :type => string
 end
 usage if not opts[:config]&&opts[:shards]&&opts[:input]&&opts[:references]
 
@@ -41,9 +42,11 @@ epochs     = opts[:epochs]
 rand       = opts[:randomize]
 reshard    = opts[:reshard]
 predefined_shards = false
+per_shard_decoder_configs = false
 if opts[:shards] == 0
   predefined_shards = true
   num_shards = 0
+  per_shard_decoder_configs = true if opts[:per_shard_decoder_configs]
 else
   num_shards = opts[:shards]
 end
@@ -101,6 +104,9 @@ refs_files = []
 if predefined_shards
   input_files = File.new(input).readlines.map {|i| i.strip }
   refs_files = File.new(refs).readlines.map {|i| i.strip }
+  if per_shard_decoder_configs
+    decoder_configs = File.new(opts[:per_shard_decoder_configs]).readlines.map {|i| i.strip}
+  end
   num_shards = input_files.size
 else
   input_files, refs_files = make_shards input, refs, num_shards, 0, rand
@@ -126,8 +132,13 @@ end
       else
         local_end = "2>work/out.#{shard}.#{epoch}"
       end
+      if per_shard_decoder_configs
+        cdec_cfg = "--decoder_config #{decoder_configs[shard]}"
+      else
+        cdec_cfg = ""
+      end
       pids << Kernel.fork {
-        `#{qsub_str_start}#{dtrain_bin} -c #{ini}\
+        `#{qsub_str_start}#{dtrain_bin} -c #{ini} #{cdec_cfg}\
           --input #{input_files[shard]}\
           --refs #{refs_files[shard]} #{input_weights}\
           --output work/weights.#{shard}.#{epoch}#{qsub_str_end} #{local_end}`
-- 
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