From 7a495a5871843f9405165e009e0c540b409eeb4f Mon Sep 17 00:00:00 2001
From: chengduo <zhaochengduo@baidu.com>
Date: Wed, 1 Aug 2018 09:13:32 +0800
Subject: [PATCH] add threads in thread pool for CPU (#12475)

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

diff --git a/python/paddle/fluid/parallel_executor.py b/python/paddle/fluid/parallel_executor.py
index 10028a8c6e3..3bbd11d9836 100644
--- a/python/paddle/fluid/parallel_executor.py
+++ b/python/paddle/fluid/parallel_executor.py
@@ -121,7 +121,7 @@ class ParallelExecutor(object):
             else:
                 cpu_num = int(
                     os.environ.get('CPU_NUM', multiprocessing.cpu_count()))
-                exec_strategy.num_threads = cpu_num
+                exec_strategy.num_threads = cpu_num * 2
 
         if build_strategy is None:
             build_strategy = BuildStrategy()
-- 
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