From 4898c38d7983e26873a28efd05220ab610427538 Mon Sep 17 00:00:00 2001
From: gongweibao <weibao.gong@gmail.com>
Date: Wed, 21 Apr 2021 10:39:11 +0800
Subject: [PATCH] add test=develop (#32380)

---
 python/paddle/distributed/fleet/launch.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/paddle/distributed/fleet/launch.py b/python/paddle/distributed/fleet/launch.py
index 13b793d3ad1..89ca7e19613 100644
--- a/python/paddle/distributed/fleet/launch.py
+++ b/python/paddle/distributed/fleet/launch.py
@@ -112,7 +112,7 @@ see: http://www.paddlepaddle.org/documentation/docs/zh/1.6/user_guides/howto/tra
     base_group.add_argument(
         "--run_mode",
         type=str,
-        default="collective",
+        default=None,
         help="run mode of job, can be:collective/ps/ps-heter")
 
     if fluid.core.is_compiled_with_cuda():
-- 
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