cuda nvidia driver cudnn 安装

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在ubuntu16.04 上安装NVIDIA driver， cuda cudnn。显卡为GTX 750ti，Tesla K40c

1. 安装的为cuda-repo-ubuntu1604-8-0-local-ga2_8.0.61-1_amd64.deb

2.步骤：

2.1

sudo apt-get purge nvidia*

2.2

sudo dpkg -i cuda-repo-<distro>_<version>_<architecture>.deb

sudo apt-get update

sudo apt-get install cuda

2.3 POST-INSTALLATION ACTIONS（后续工作）

export PATH=/usr/local/cuda-8.0/bin${PATH:+:${PATH}}

对于64位系统

export LD_LIBRARY_PATH=/usr/local/cuda-8.0/lib64\${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}

2.4 安装完成后

移动samples

cuda-install-samples-8.0.sh <dir>

重启后，检查drivers的版本：

cat /proc/driver/nvidia/version

或者

nvcc -V

nvidia-smi

2.5 对于在 ~/NVIDIA_CUDA-8.0_Samples 运行 deviceQuery 没搞明白

3. 安装成功后，各个测试结果

$ nvcc -V

nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2016 NVIDIA Corporation
Built on Tue_Jan_10_13:22:03_CST_2017
Cuda compilation tools, release 8.0, V8.0.61

$ nvidia-smi

+-----------------------------------------------------------------------------+
| NVIDIA-SMI 375.39                 Driver Version: 375.39                    |
|-------------------------------+----------------------+----------------------+
| GPU Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap|         Memory-Usage | GPU-Util Compute M. |
|===============================+======================+======================|
|   0 Tesla K40c          Off | 0000:01:00.0     Off |                    0 |
| 23%   42C    P8    22W / 235W |      0MiB / 11439MiB |      0%      Default |
+-------------------------------+----------------------+----------------------+
|   1 GeForce GTX 750 Ti Off | 0000:03:00.0      On |                  N/A |
| 33%   33C    P8     1W / 38W |    269MiB /   978MiB |      1%      Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
| GPU       PID Type Process name                               Usage      |
|=============================================================================|
|    1       985    G   /usr/lib/xorg/Xorg                             169MiB |
|    1      1651    G   compiz                                          91MiB |
|    1      2171    G   fcitx-qimpanel                                   5MiB |
|    1      3024    G   /usr/lib/firefox/firefox                         1MiB |
+-----------------------------------------------------------------------------+

4.存在的问题。

每次启动后，nvcc -V就不执行了。出现

wgb@wgb:~$ nvcc -v
The program 'nvcc' is currently not installed. You can install it by typing:
sudo apt install nvidia-cuda-toolkit

需要重新输入路径才能解决。最终解决办法，还不知！

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