ubuntu配置cuda和cudnn

nvidia-smi 查看当前驱动

https://developer.nvidia.com/cuda-toolkit-archive
选择匹配的驱动下载.run文件

sudo sh cuda****

如果已经安装过显卡驱动，就不要再重复安装驱动了，按enter取消driver

Driver: Not Selected
Toolkit: Installed in /usr/local/cuda-12.4/

Please make sure that

• PATH includes /usr/local/cuda-12.4/bin
• LD_LIBRARY_PATH includes /usr/local/cuda-12.4/lib64, or, add /usr/local/cuda-12.4/lib64 to /etc/ld.so.conf and run ldconfig as root

To uninstall the CUDA Toolkit, run cuda-uninstaller in /usr/local/cuda-12.4/bin
***WARNING: Incomplete installation! This installation did not install the CUDA Driver. A driver of version at least 550.00 is required for CUDA 12.4 functionality to work.
To install the driver using this installer, run the following command, replacing with the name of this run file:
sudo .run --silent --driver

Logfile is /var/log/cuda-installer.log

vim ~/.bashrc
export PATH=$PATH:/usr/local/cuda-12.4/bin
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda-12.4/lib64

安装cuda就可以使用nvcc -V来查看了，就有了运行环境
安装cudnn，可以更加充分的利用显卡的能力