From 1d2c99c336c156e502a081b89e8f6937839e86e5 Mon Sep 17 00:00:00 2001
From: "Yang Yang(Tony)" <yangyang62@baidu.com>
Date: Wed, 24 Jan 2018 19:08:22 -0800
Subject: [PATCH] fix nccl root number (#7842)

* fix call once logic

* clean up

* further clean up

* fix root number
---
 paddle/operators/nccl_op_test.cu.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/paddle/operators/nccl_op_test.cu.cc b/paddle/operators/nccl_op_test.cu.cc
index 6546096069d..072e4eb2eff 100644
--- a/paddle/operators/nccl_op_test.cu.cc
+++ b/paddle/operators/nccl_op_test.cu.cc
@@ -241,7 +241,7 @@ TEST_F(NCCLTester, ncclReduceOp) {
 // ncclBcastOp with desc
 TEST_F(NCCLTester, ncclBcastOp) {
   std::unique_ptr<f::OpDesc> op2(new f::OpDesc);
-  const int kRoot = 5;
+  const int kRoot = 0;
   op2->SetType("ncclBcast");
   op2->SetInput("X", {"st"});
   op2->SetInput("Communicator", {"comm"});
-- 
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