From feb569f8ea9808dadce26e9ebdad43d9a7e67587 Mon Sep 17 00:00:00 2001
From: Yu Yang <yuyang18@baidu.com>
Date: Tue, 20 Mar 2018 14:59:12 +0800
Subject: [PATCH] Add log

---
 paddle/fluid/framework/parallel_executor.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/paddle/fluid/framework/parallel_executor.cc b/paddle/fluid/framework/parallel_executor.cc
index d0c4d8dd8b3..f9fc35d8ce3 100644
--- a/paddle/fluid/framework/parallel_executor.cc
+++ b/paddle/fluid/framework/parallel_executor.cc
@@ -376,7 +376,7 @@ struct NCCLAllReduceOpHandle : public OpHandle {
       return;  // No need to all reduce when GPU count = 1;
     } else {
       auto &var_name = static_cast<VarHandle *>(this->inputs_[0])->name_;
-
+      VLOG(3) << "Invoke NCCL AllReduce";
       int dtype = -1;
       size_t numel = 0;
 
-- 
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