From 260cfe3b865d48a09ff903bb1f7816d1d055da73 Mon Sep 17 00:00:00 2001
From: Yu Yang <yuyang18@baidu.com>
Date: Tue, 20 Mar 2018 13:08:46 +0800
Subject: [PATCH] Stop Wait NCCL Stream

---
 paddle/fluid/framework/parallel_executor.cc | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/paddle/fluid/framework/parallel_executor.cc b/paddle/fluid/framework/parallel_executor.cc
index 07dfddfa3..d0c4d8dd8 100644
--- a/paddle/fluid/framework/parallel_executor.cc
+++ b/paddle/fluid/framework/parallel_executor.cc
@@ -211,9 +211,6 @@ struct FetchOpHandle : public OpHandle {
     for (auto *input_var : inputs_) {
       input_var->pending_ops_.erase(this);
     }
-    for (auto &pair : dev_ctx_) {
-      pair.second->Wait();
-    }
 
     // Lazily merge tensors. Will faster code.
     MergeTensors();
-- 
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