Ubuntu 18.04新系统安装cuda/cudnn

• 安装Nvidia显卡驱动

Ubuntu 18.04 新系统装完后，先更新一下，

sudo apt-get update
sudo apt-get upgrade

然后查看一下ubuntu支持的最新的英伟达显卡固件（确保自己有英伟达显卡）,并查看最新适配显卡驱动。

sudo apt-cache search nvidia
ubuntu-drivers devices

点击进入Software&Updates ->Additional Drivers, 选择最新驱动进行更新，更新完重启。

• 安装CUDA Toolkit

下载好cuda10.1（下载文件为cuda_10.1.243_418.87.00_linux.run），打开下载文件夹，执行

sudo sh cuda_10.1.243_418.87.00_linux.run

因为已经安装了驱动，所以不用再安装了，其他按照指示安装即可。

安装完成之后，会出现提示：

Installing the CUDA Toolkit in /usr/local/cuda-10.1 …
Installing the CUDA Samples in /root …
Copying samples to /home/derek/NVIDIA_CUDA-10.1_Samples now…
Finished copying samples.

= Summary =

Driver: Installed
Toolkit: Installed in /usr/local/cuda-10.1
Samples: Installed in /home/derek

Please make sure that
– PATH includes /usr/local/cuda-10.1/bin
– LD_LIBRARY_PATH includes /usr/local/cuda-10.1/lib64, or, add /usr/local/cuda-10.1/lib64 to /etc/ld.so.conf and run ldconfig as root

To uninstall the CUDA Toolkit, run the uninstall script in /usr/local/cuda-10.1/bin

Please see CUDA_Installation_Guide_Linux.pdf in /usr/local/cuda-10.1/doc/pdf for detailed information on setting up CUDA.

WARNING: Incomplete installation! This installation did not install the CUDA Driver. A driver of version at least 413.00 is required for CUDA 10.1 functionality to work.

To install the driver using this installer, run the following command, replacing with the name of this run filesudo.run -silent -driver

这时候需要按照上面说的，把一下内容加入到PATH。

– PATH includes /usr/local/cuda-10.1/bin
– LD_LIBRARY_PATH includes /usr/local/cuda-10.1/lib64

下面我们打开~/.bashrc

sudo gedit ~/.bashrc

在最后加入：

export PATH=/usr/local/cuda-10.1/bin:$PATH

export LD_LIBRARY_PATH=/usr/local/cuda/lib64:$LD_LIBRARY_PATH

然后在命令行输入以下内容立即生效：

source ~/.bashrc

现在我们来验证一下是否安装完成：

cd /usr/local/cuda-10.1/samples/1_Utilities/deviceQuery
sudo make
./deviceQuery

出现一大堆废话不用管，最后有result=pass即为成功。

• 安装cudnn

依旧打开现在文件夹，并打开命令行，在命令行中输入，

sudo dpkg -i libcudnn7_7.6.5.32-1+cuda10.1_amd64.deb

等待就好，没有报错即可继续。

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