From 91b114a7870b62764f0a493c520c5fab1d89f6a7 Mon Sep 17 00:00:00 2001
From: qiaolongfei <qiaolongfei@baidu.com>
Date: Mon, 30 Jul 2018 11:39:48 +0800
Subject: [PATCH] change map to unordered_map

---
 paddle/fluid/operators/split_ids_op.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/paddle/fluid/operators/split_ids_op.h b/paddle/fluid/operators/split_ids_op.h
index 86a3eaa5c4..d6caf626cb 100644
--- a/paddle/fluid/operators/split_ids_op.h
+++ b/paddle/fluid/operators/split_ids_op.h
@@ -14,7 +14,7 @@ limitations under the License. */
 
 #pragma once
 
-#include <map>
+#include <unordered_map>
 #include <vector>
 #include "paddle/fluid/framework/op_registry.h"
 #include "paddle/fluid/operators/math/selected_rows_functor.h"
@@ -69,7 +69,7 @@ class SplitIdsOpKernel : public framework::OpKernel<T> {
       auto outs = ctx.MultiOutput<framework::SelectedRows>("Out");
       const size_t shard_num = outs.size();
       // get rows for outputs
-      std::map<int64_t, size_t> id_to_index;
+      std::unordered_map<int64_t, size_t> id_to_index;
       for (size_t i = 0; i < ids_rows.size(); ++i) {
         id_to_index[ids_rows[i]] = i;
         size_t shard_id = static_cast<size_t>(ids_rows[i]) % shard_num;
-- 
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