ubuntu 20 CUDA12.1安装流程

1. 首先确定是否有GPU驱动

nvidia-smi

1. 其次安装必须的CUDA安装包

wget https://developer.download.nvidia.com/compute/cuda/12.1.0/local_installers/cuda_12.1.0_530.30.02_linux.run

1. 下载好后执行

bash cuda_12.1.0_530.30.02_linux.run

1. 安装好后修改环境变量

4.1 在root下修改环境变量

`vim ~/.bashrc
exportPATH=/usr/local/cuda-12.1/bin:$PATHexportLD_LIBRARY_PATH=/usr/local/cuda-12.1/lib64:$LD_LIBRARY_PATH
`

4.2 在普通用户下安装

vim /home/xxx/.bashrc

exportPATH=/usr/local/cuda-12.1/bin:$PATHexportLD_LIBRARY_PATH=/usr/local/cuda-12.1/lib64:$LD_LIBRARY_PATH