ubuntu.24安装cuda

1.下载CUDA Toolkit
https://developer.nvidia.com/cuda-toolkit-archive
2.按照命令下载，安装

sudo sh cuda_12.2.2_535.104.05_linux.run
3.环境变量
sudo vi /etc/profile
最后面添加
export PATH="/usr/local/cuda-12.2/bin:$PATH"
export LD_LIBRARY_PATH="/usr/local/cuda-12.2/lib64:$LD_LIBRARY_PATH"
重启
reboot
检查
nvcc -V
4.Removing CUDA Toolkit and Driver
Ubuntu and Debian

To remove CUDA Toolkit:
sudo apt-get --purge remove "*cuda*" "*cublas*" "*cufft*" "*cufile*" "*curand*" \
 "*cusolver*" "*cusparse*" "*gds-tools*" "*npp*" "*nvjpeg*" "nsight*" "*nvvm*"

To remove NVIDIA Drivers:
sudo apt-get --purge remove "*nvidia*" "libxnvctrl*"

To clean up the uninstall:
sudo apt-get autoremove
5.官方文档
https://docs.nvidia.com/cuda/cuda-installation-guide-linux/contents.html
6.安装cuddn
https://developer.nvidia.cn/rdp/cudnn-archive
sudo tar -xf cudnn-linux-x86_64-8.9.7.29_cuda12-archive.tar.xz
cd cudnn-linux-x86_64-8.9.7.29_cuda12-archive/
sudo cp lib/libcudnn* /usr/local/cuda-12.2/lib64
sudo cp include/* /usr/local/cuda-12.2/include
sudo chmod a+r /usr/local/cuda-12.2/include/cudnn.h
sudo chmod a+r /usr/local/cuda-12.2/lib64/libcudnn*
#测试
cat /usr/local/cuda-12.2/include/cudnn_version.h | grep CUDNN_MAJOR -A 2