From 935fbd4853d8193296c8676611e8a0076baceec1 Mon Sep 17 00:00:00 2001
From: xzl <zlx_hg@163.com>
Date: Thu, 28 Sep 2017 16:36:55 +0800
Subject: [PATCH] change batch_size from required to optional with a default
 value 1

---
 proto/TrainerConfig.proto | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/proto/TrainerConfig.proto b/proto/TrainerConfig.proto
index b7c2355159e..aa4e5f4ca09 100644
--- a/proto/TrainerConfig.proto
+++ b/proto/TrainerConfig.proto
@@ -19,7 +19,7 @@ import "ModelConfig.proto";
 package paddle;
 
 message OptimizationConfig {
-  required int32 batch_size = 3;
+  optional int32 batch_size = 3 [ default = 1 ];
   required string algorithm = 4 [ default = "async_sgd" ];
   optional int32 num_batches_per_send_parameter = 5 [ default = 1 ];
   optional int32 num_batches_per_get_parameter = 6 [ default = 1 ];
-- 
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