下载特定版本cuda

然后点点点，选择runfile(local)

本地运行后先continue

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Do you accept the previously read EULA?
accept/decline/quit: accept

按回车取消驱动安装

gcc版本不兼容报错

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 Failed to verify gcc version. See log at /var/log/cuda-installer.log for details.

这样就行，加一个--override

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sudo sh cuda_10.2.89_440.33.01_linux.run --override

切换版本

首先查看当前cuda版本

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ls /usr/local/

我们可以看到

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bin  cuda-11.0  cuda-11.8  cuda-12.0  etc  games  include  lib  man  sbin  share  src

然后编辑环境变量

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vim ~/.bashrc

最下面加入11.8的环境变量

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## cuda path
cuda_version=11.8

export PATH=/usr/local/cuda-$cuda_version/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/cuda-$cuda_version/lib64:$ld_library_path
export CUDA_HOME=/usr/local/cuda-$cuda_version

然后source一下

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 source ~/.bashrc

我们可以nvcc看下

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nvcc -V

nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2022 NVIDIA Corporation
Built on Wed_Sep_21_10:33:58_PDT_2022
Cuda compilation tools, release 11.8, V11.8.89
Build cuda_11.8.r11.8/compiler.31833905_0