From 08fbab9429528a5c25d9fa75b311f90da98b916f Mon Sep 17 00:00:00 2001
From: qiaolongfei <qiaolongfei@baidu.com>
Date: Thu, 26 Apr 2018 19:27:53 +0800
Subject: [PATCH] complete ListenAndServ layer in layers/io.py

---
 python/paddle/fluid/layers/io.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/python/paddle/fluid/layers/io.py b/python/paddle/fluid/layers/io.py
index cc71c2136a..e8eff33bd1 100644
--- a/python/paddle/fluid/layers/io.py
+++ b/python/paddle/fluid/layers/io.py
@@ -168,7 +168,9 @@ class ListenAndServ(object):
                 'endpoint': self.endpoint,
                 'Fanin': self.fan_in,
                 'OptimizeBlock': current_block,
-                'PrefetchBlock': empty_block
+                'PrefetchBlock': empty_block,
+                'sync_mode': True,  # did not support async now in layers
+                'grad_to_block_id': []
             })
 
 
-- 
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