Introduction

According to different needs, use different versions of cuda

Free switching of CUDA versions

1. Modify environment variables in ~/.bashrc:
Command line sudo gedit ~/.bashrc Open .bashrc:

sudo gedit ~/.bashrc

Because I installed Xmanager, I can directly see the graphical interface and modify it directly.

The modification command of the terminal is:
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export PATH="$PATH:/usr/local/cuda-11.3/bin"export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/cuda-11.3/lib64/"export LIBRARY_PATH="$LIBRARY_PATH:/usr/local/cuda-11.3/lib64"

After saving and exiting, run the following command in the terminal to make it take effect:

source ~/.bashrc

2. At this step, it means that the link library has been set up, and finally only need to enter in the terminal:

sudo rm -rf /usr/local/cuda-10.1 #Delete previously created soft linksudo ln -s /usr/local/cuda-11.3 /usr/local/cuda #create new cuda-10.0Softlinks

View the current cuda version:

nvcc -V

Test:

If both test results are Result = PASS, the installation is successful

#compile and test the device deviceQuerycd /usr/local/cuda-11.3/samples/1_Utilities/deviceQuerysudo make./deviceQuery

##Compile and test bandwidth bandwidthTestcd ../bandwidthTestsudo make./bandwidthTest

Reference link: https://blog.csdn.net/elegantoo/article/details/105574133