From 6d69ae0c6e0f824142c81f781e0b4f3bae63fcc0 Mon Sep 17 00:00:00 2001
From: Yancey1989 <yancey1989@gmail.com>
Date: Wed, 6 Jun 2018 12:42:22 +0800
Subject: [PATCH] code cleanup

---
 paddle/fluid/framework/details/multi_devices_graph_builder.cc | 1 -
 1 file changed, 1 deletion(-)

diff --git a/paddle/fluid/framework/details/multi_devices_graph_builder.cc b/paddle/fluid/framework/details/multi_devices_graph_builder.cc
index 635faafe4c6..1c1b11d0e44 100644
--- a/paddle/fluid/framework/details/multi_devices_graph_builder.cc
+++ b/paddle/fluid/framework/details/multi_devices_graph_builder.cc
@@ -191,7 +191,6 @@ std::unique_ptr<SSAGraph> MultiDevSSAGraphBuilder::Build(
   };
 
   bool is_forwarding = true;
-  std::unordered_map<std::string, int> rpc_var_device_mapping;
   int rpc_op_device_id = 0;
   auto schedule_rpc_op = [&]() -> void {
     rpc_op_device_id++;
-- 
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