From f3bf21052c9a592d36df3aef91463bac3871c6f9 Mon Sep 17 00:00:00 2001
From: barrierye <barriery@qq.com>
Date: Wed, 25 Mar 2020 20:35:48 +0800
Subject: [PATCH] fix RUN_IN_DOCKER doc

---
 doc/RUN_IN_DOCKER.md    | 6 ++++++
 doc/RUN_IN_DOCKER_CN.md | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/doc/RUN_IN_DOCKER.md b/doc/RUN_IN_DOCKER.md
index 8a932fe1..d4e8e5e4 100644
--- a/doc/RUN_IN_DOCKER.md
+++ b/doc/RUN_IN_DOCKER.md
@@ -43,6 +43,12 @@ pip install paddle-serving-server
 
 ### Test example
 
+Before running the GPU version of the Server side code, you need to set the `CUDA_VISIBLE_DEVICES` environment variable to specify which GPUs the prediction service uses. The following example specifies two GPUs with indexes 0 and 1:
+
+```bash
+export CUDA_VISIBLE_DEVICES=0,1
+```
+
 Get the trained Boston house price prediction model by the following command:
 
 ```bash
diff --git a/doc/RUN_IN_DOCKER_CN.md b/doc/RUN_IN_DOCKER_CN.md
index a4676ced..a66eea5b 100644
--- a/doc/RUN_IN_DOCKER_CN.md
+++ b/doc/RUN_IN_DOCKER_CN.md
@@ -127,6 +127,12 @@ pip install paddle-serving-server-gpu
 
 ### 测试example
 
+GPU版本在运行Server端代码前需要设置`CUDA_VISIBLE_DEVICES`环境变量来指定预测服务使用的GPU，下面的示例为指定索引为0和1两块GPU：
+
+```bash
+ export CUDA_VISIBLE_DEVICES=0,1
+```
+
 通过下面命令获取训练好的Boston房价预估模型：
 
 ```bash
-- 
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