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Ubuntu24.04安装多版本CUDA

2025-07-20
2026-01-01

进入官方下载页,确认版本无误后开始下载安装

Ubuntu24.04安装多版本CUDA 操作截图 1

按空格取消第一个选项(驱动)的勾选,然后选择Install,下一步会出现yes or no选择no

Ubuntu24.04安装多版本CUDA 操作截图 2

等待出现以下代码表示安装成功

===========
= Summary =
===========
Driver: Not Selected
Toolkit: Installed in /usr/local/cuda-12.8/
Please make sure that
- PATH includes /usr/local/cuda-12.8/bin
- LD_LIBRARY_PATH includes /usr/local/cuda-12.8/lib64, or, add /usr/local/cuda-12.8/lib64 to /etc/ld.so.conf and run ldconfig as root
To uninstall the CUDA Toolkit, run cuda-uninstaller in /usr/local/cuda-12.8/bin
***WARNING: Incomplete installation! This installation did not install the CUDA Driver. A driver of version at least 570.00 is required for CUDA 12.8 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

然后我们需要配置环境变量以确保两个cuda的共存

sudo vim ~/.bashrc

添加以下内容来设置

alias cuda128='export PATH=/usr/local/cuda-12.8/bin:$PATH; export LD_LIBRARY_PATH=/usr/local/cuda-12.8/lib64:$LD_LIBRARY_PATH'
alias cuda129='export PATH=/usr/local/cuda-12.9/bin:$PATH; export LD_LIBRARY_PATH=/usr/local/cuda-12.9/lib64:$LD_LIBRARY_PATH'

修改以下内容选择你需要默认的cuda版本,如果要12.8就替换掉下面的12.9

export PATH=/usr/local/cuda-12.9/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/cuda-12.9/lib64:$LD_LIBRARY_PATH

验证

nvcc --version
cuda128 #用于切换到CUDA12.8版本
nvcc --version
cuda129 #用于切换到CUDA12.9版本
nvcc --version

Ubuntu24.04安装多版本CUDA 操作截图 3

Ubuntu24.04安装多版本CUDA
https://nvcc-v.com/2025/07/20/ubuntu-multi-cuda-setup/
作者
Shattered217
发布于
2025-07-20
许可协议
CC BY-NC-SA 4.0

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