centos7 安装 NVIDIA Docker
安装环境：1、centos7.3
2、NVIDIA Corporation GP106
安装nvidia-docker
a、安装docker 可参考centos7 安装docker
b：
# Install nvidia-docker and nvidia-docker-plugin
wget -P /tmp https://github.com/NVIDIA/nvidia-docker/releases/download/v1.0.1/nvidia-docker-1.0.1-1.x86_64.rpm
sudo rpm -i /tmp/nvidia-docker*.rpm && rm /tmp/nvidia-docker*.rpm
sudo systemctl start nvidia-docker
# Test nvidia-smi
nvidia-docker run --rm nvidia/cuda nvidia-smi
如果出现异常：
# nvidia-docker run --rm nvidia/cuda nvidia-smi
/usr/bin/docker-current: Error response from daemon: create nvidia_driver_384.69: create nvidia_driver_384.69: Error looking up volume plugin nvidia-docker: plugin not found.
See '/usr/bin/docker-current run --help'.
则检查nvidia-docker是否启动：
# systemctl status nvidia-docker
● nvidia-docker.service - NVIDIA Docker plugin
Loaded: loaded (/usr/lib/systemd/system/nvidia-docker.service; disabled; vendor preset: disabled)
Active: inactive (dead)
Docs: https://github.com/NVIDIA/nvidia-docker/wiki
# systemctl start nvidia-docker
# systemctl status nvidia-docker
● nvidia-docker.service - NVIDIA Docker plugin
Loaded: loaded (/usr/lib/systemd/system/nvidia-docker.service; disabled; vendor preset: disabled)
Active: active (running) since Wed 2017-08-30 03:18:32 CST; 5s ago
Docs: https://github.com/NVIDIA/nvidia-docker/wiki
Process: 11135 ExecStartPost=/bin/sh -c /bin/echo unix://$SOCK_DIR/nvidia-docker.sock > $SPEC_FILE (code=exited, status=0/SUCCESS)
Process: 11131 ExecStartPost=/bin/sh -c /bin/mkdir -p $( dirname $SPEC_FILE ) (code=exited, status=0/SUCCESS)
Main PID: 11130 (nvidia-docker-p)
CGroup: /system.slice/nvidia-docker.service
└─11130 /usr/bin/nvidia-docker-plugin -s /var/lib/nvidia-docker
Aug 30 03:18:32 localhost.localdomain systemd: Starting NVIDIA Docker plugin...
Aug 30 03:18:32 localhost.localdomain systemd: Started NVIDIA Docker plugin.
Aug 30 03:18:32 localhost.localdomain nvidia-docker-plugin: /usr/bin/nvidia-docker-plugin | 2017/08/30 03:18:32 Loading NV...mory
Aug 30 03:18:32 localhost.localdomain nvidia-docker-plugin: /usr/bin/nvidia-docker-plugin | 2017/08/30 03:18:32 Loading NV...rary
Aug 30 03:18:33 localhost.localdomain nvidia-docker-plugin: /usr/bin/nvidia-docker-plugin | 2017/08/30 03:18:33 Discoverin...ices
Aug 30 03:18:33 localhost.localdomain nvidia-docker-plugin: /usr/bin/nvidia-docker-plugin | 2017/08/30 03:18:33 Provisioni...umes
Aug 30 03:18:33 localhost.localdomain nvidia-docker-plugin: /usr/bin/nvidia-docker-plugin | 2017/08/30 03:18:33 Serving pl...cker
Aug 30 03:18:33 localhost.localdomain nvidia-docker-plugin: /usr/bin/nvidia-docker-plugin | 2017/08/30 03:18:33 Serving re...3476
Hint: Some lines were ellipsized, use -l to show in full.
# nvidia-docker run --rm nvidia/cuda nvidia-smi
Tue Aug 29 19:18:46 2017
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 384.69 Driver Version: 384.69 |
|-------------------------------+----------------------+----------------------+
| GPUName Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| FanTempPerfPwr:Usage/Cap| Memory-Usage | GPU-UtilCompute M. |
|===============================+======================+======================|
| 0GeForce GTX 106...Off| 00000000:01:00.0 Off | N/A |
| 43% 39C P0 22W / 120W | 10MiB /6072MiB | 0% Default |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: GPU Memory |
|GPU PIDTypeProcess name Usage |
|=============================================================================|
|No running processes found |
+-----------------------------------------------------------------------------+
如果出现以下情况：
# nvidia-docker run --rm nvidia/cuda nvidia-smi
NVIDIA-SMI couldn't find libnvidia-ml.so library in your system. Please make sure that the NVIDIA Display Driver is properly installed and present in your system.
Please also try adding directory that contains libnvidia-ml.so to your system PATH.key
可以尝试一下加参数--privileged=true ，如果没问题，则需要修改selinux配置,编辑/etc/selinux/config：
SELINUX=disabled
SELINUXTYPE=targeted
或者尝试selinux模式为permissive模式 setenforce 0
重启机器，重启服务器即可。
可参考：
https://github.com/NVIDIA/nvidia-docker/issues/407
https://github.com/NVIDIA/nvidia-docker
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