change tensorboard step to global step count

Author: scientist1642

test.py

@@ -73,8 +73,8 @@ def test(rank, args, shared_model, gl_step_cnt):
                 time.strftime("%Hh %Mm %Ss",
                               time.gmtime(passed_time)),
                 reward_sum, episode_length))
-            tb.log_value('steps_second', global_step_count / passed_time, local_episode_num) 
-            tb.log_value('reward', reward_sum, local_episode_num) 
+            tb.log_value('steps_second', global_step_count / passed_time, global_step_count) 
+            tb.log_value('reward', reward_sum, global_step_count) 
 
             reward_sum = 0
             episode_length = 0