Linux 下安装多个版本的 CUDA（Ubuntu）

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This guide outlines setting up a multi-version CUDA environment. Download CUDA from NVIDIA's website, using the archive for older versions. During installation, ignore warnings, accept the EULA, install only the CUDA Toolkit, set the library path, and confirm. Finally, add commands to shell configuration files to switch between versions.

最近几个项目需要用到不同版本的 CUDA 来编译，所以这里记录一下怎么配置多版本的 CUDA 环境，以后就懒得再去百度了。

下载

CUDA Toolkit Download Link 这里是最新的 CUDA 版本地址，如果需要其他版本的话，需要在网页下方找到 Archive of Previous CUDA Releases.

安装

假定我们已经安装了某个版本的 CUDA，在安装另一个版本的时候需要进行的操作如下，这里用 cuda_11.7.1_515.65.01_linux 做演示：

BASH

wget https://developer.download.nvidia.com/compute/cuda/11.7.1/local_installers/cuda_11.7.1_515.65.01_linux.run
sudo sh cuda_11.7.1_515.65.01_linux.run

接下来基本上是这样的步骤：

看到提示说推荐卸载现有版本再继续，直接选择 Continue
EULA 协议，直接 accept
取消除了 CUDA Toolkit 的其他勾选
去 OPTION 里面设定 CUDA Library 地址为：/usr/local/cuda-11.7/
确定安装

看到以下 Summary 就是成功了：

BASH

===========
= Summary =
===========

Driver:   Not Selected
Toolkit:  Installed in /usr/local/cuda-11.7/

Please make sure that
 -   PATH includes /usr/local/cuda-11.7/bin
 -   LD_LIBRARY_PATH includes /usr/local/cuda-11.7/lib64, or, add /usr/local/cuda-11.7/lib64 to /etc/ld.so.conf and run ldconfig as root

To uninstall the CUDA Toolkit, run cuda-uninstaller in /usr/local/cuda-11.7/bin
***WARNING: Incomplete installation! This installation did not install the CUDA Driver. A driver of version at least 515.00 is required for CUDA 11.7 functionality to work.
To install the driver using this installer, run the following command, replacing <CudaInstaller> with the name of this run file:
    sudo <CudaInstaller>.run --silent --driver

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

最后，通过在 ~/.bashrc 或者 ~/.profile 添加以下命令实现切换版本：

BASH

export PATH=/usr/local/cuda-11.7/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/cuda-11.7/lib64:$LD_LIBRARY_PATH
export CUDA_HOME="/usr/local/cuda-11.7"

最近几个项目需要用到不同版本的 CUDA 来编译，所以这里记录一下怎么配置多版本的 CUDA 环境，以后就懒得再去百度了。

下载

CUDA Toolkit Download Link 这里是最新的 CUDA 版本地址，如果需要其他版本的话，需要在网页下方找到 Archive of Previous CUDA Releases.

安装

假定我们已经安装了某个版本的 CUDA，在安装另一个版本的时候需要进行的操作如下，这里用 cuda_11.7.1_515.65.01_linux 做演示：

BASH

wget https://developer.download.nvidia.com/compute/cuda/11.7.1/local_installers/cuda_11.7.1_515.65.01_linux.run
sudo sh cuda_11.7.1_515.65.01_linux.run

接下来基本上是这样的步骤：

看到提示说推荐卸载现有版本再继续，直接选择 Continue
EULA 协议，直接 accept
取消除了 CUDA Toolkit 的其他勾选
去 OPTION 里面设定 CUDA Library 地址为：/usr/local/cuda-11.7/
确定安装

看到以下 Summary 就是成功了：

BASH

===========
= Summary =
===========

Driver:   Not Selected
Toolkit:  Installed in /usr/local/cuda-11.7/

Please make sure that
 -   PATH includes /usr/local/cuda-11.7/bin
 -   LD_LIBRARY_PATH includes /usr/local/cuda-11.7/lib64, or, add /usr/local/cuda-11.7/lib64 to /etc/ld.so.conf and run ldconfig as root

To uninstall the CUDA Toolkit, run cuda-uninstaller in /usr/local/cuda-11.7/bin
***WARNING: Incomplete installation! This installation did not install the CUDA Driver. A driver of version at least 515.00 is required for CUDA 11.7 functionality to work.
To install the driver using this installer, run the following command, replacing <CudaInstaller> with the name of this run file:
    sudo <CudaInstaller>.run --silent --driver

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

最后，通过在 ~/.bashrc 或者 ~/.profile 添加以下命令实现切换版本：

BASH

export PATH=/usr/local/cuda-11.7/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/cuda-11.7/lib64:$LD_LIBRARY_PATH
export CUDA_HOME="/usr/local/cuda-11.7"