From f26288ba61d3d16866e1b227a71e7d9c46923436 Mon Sep 17 00:00:00 2001
From: Qi Liu <liuq901@163.com>
Date: Fri, 11 Mar 2016 13:32:00 +0800
Subject: update mini_batch_init

---
 lua/config.lua  |  4 ++--
 lua/main.lua    |  4 +++-
 lua/network.lua | 30 +++++++++++++++++-------------
 lua/reader.lua  |  3 ++-
 4 files changed, 24 insertions(+), 17 deletions(-)

(limited to 'lua')

diff --git a/lua/config.lua b/lua/config.lua
index 9d73b64..1ec1198 100644
--- a/lua/config.lua
+++ b/lua/config.lua
@@ -12,7 +12,7 @@ function get_global_conf()
         layer_num = 1,
         chunk_size = 15,
         batch_size = 20,
-        max_iter = 1,
+        max_iter = 3,
         param_random = function() return (math.random() / 5 - 0.1) end,
         dropout = 0.5,
         timer = nerv.Timer(),
@@ -34,7 +34,7 @@ function get_layers(global_conf)
             output = {dim_in = {global_conf.hidden_size}, dim_out = {global_conf.vocab_size}, pr = pr}
         },
         ['nerv.SoftmaxCELayer'] = {
-            softmax = {dim_in = {global_conf.vocab_size, global_conf.vocab_size}, dim_out = {1}},
+            softmax = {dim_in = {global_conf.vocab_size, global_conf.vocab_size}, dim_out = {1}, compressed = true},
         },
     }
     for i = 1, global_conf.layer_num do
diff --git a/lua/main.lua b/lua/main.lua
index 684efac..ce0270a 100644
--- a/lua/main.lua
+++ b/lua/main.lua
@@ -9,7 +9,7 @@ local timer = global_conf.timer
 timer:tic('IO')
 
 local data_path = 'nerv/nerv/examples/lmptb/PTBdata/'
-local train_reader = nerv.Reader(data_path .. 'vocab', data_path .. 'ptb.train.txt.adds')
+local train_reader = nerv.Reader(data_path .. 'vocab', data_path .. 'ptb.valid.txt.adds')
 local val_reader = nerv.Reader(data_path .. 'vocab', data_path .. 'ptb.valid.txt.adds')
 
 local train_data = train_reader:get_all_batch(global_conf)
@@ -41,3 +41,5 @@ for i = 1, global_conf.max_iter do
 end
 timer:toc('global')
 timer:check('global')
+timer:check('network')
+timer:check('gc')
diff --git a/lua/network.lua b/lua/network.lua
index 6280f24..0c11321 100644
--- a/lua/network.lua
+++ b/lua/network.lua
@@ -57,12 +57,11 @@ function nn:get_data(data)
             ret[i].err_output[t][1] = err_output[t]
             ret[i].err_output[t][2] = softmax_output[t]
         end
-        ret[i].info = {}
-        ret[i].info.seq_length = data[i].seq_len
-        ret[i].info.new_seq = {}
+        ret[i].seq_length = data[i].seq_len
+        ret[i].new_seq = {}
         for j = 1, self.gconf.batch_size do
             if data[i].seq_start[j] then
-                table.insert(ret[i].info.new_seq, j)
+                table.insert(ret[i].new_seq, j)
             end
         end
     end
@@ -70,34 +69,39 @@ function nn:get_data(data)
 end
 
 function nn:process(data, do_train)
+    local timer = self.gconf.timer
     local total_err = 0
     local total_frame = 0
     for id = 1, #data do
         if do_train then
             self.gconf.dropout_rate = self.gconf.dropout
+            data[id].do_train = true
         else
             self.gconf.dropout_rate = 0
+            data[id].do_train = false
         end
-        self.network:mini_batch_init(data[id].info)
-        local input = {}
-        for t = 1, self.gconf.chunk_size do
-            input[t] = {data[id].input[t][1], data[id].input[t][2]:decompress(self.gconf.vocab_size)}
-        end
-        self.network:propagate(input, data[id].output)
+        timer:tic('network')
+        self.network:mini_batch_init(data[id])
+        self.network:propagate()
+        timer:toc('network')
         for t = 1, self.gconf.chunk_size do
             local tmp = data[id].output[t][1]:new_to_host()
             for i = 1, self.gconf.batch_size do
-                if t <= data[id].info.seq_length[i] then
+                if t <= data[id].seq_length[i] then
                     total_err = total_err + math.log10(math.exp(tmp[i - 1][0]))
                     total_frame = total_frame + 1
                 end
             end
         end
         if do_train then
-            self.network:back_propagate(data[id].err_input, data[id].err_output, input, data[id].output)
-            self.network:update(data[id].err_input, input, data[id].output)
+            timer:tic('network')
+            self.network:back_propagate()
+            self.network:update()
+            timer:toc('network')
         end
+        timer:tic('gc')
         collectgarbage('collect')
+        timer:toc('gc')
     end
     return math.pow(10, - total_err / total_frame)
 end
diff --git a/lua/reader.lua b/lua/reader.lua
index 2e51a9c..0c7bcb6 100644
--- a/lua/reader.lua
+++ b/lua/reader.lua
@@ -58,7 +58,8 @@ function Reader:get_all_batch(global_conf)
     for i = 1, global_conf.batch_size do
         pos[i] = nil
     end
-    while true do
+    --while true do
+    for i = 1, 100 do
         local input = {}
         local output = {}
         for i = 1, global_conf.chunk_size do
-- 
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