Multi-version Cuda problem

The same machine can be compatible with multiple versions of the CUDA, these two days will be so back and forth, slightly trouble.

1. View the current Cuda version;

NVCC--version

From this we can see that the current is Cuda 8.0.

2. Modify the. bashrc file.

Export path= $PATH:/usr/local/cuda-8.0/bin
export ld_library_path= $LD _library_path:/usr/local/cuda-8.0/lib64
Export library_path= $LIBRARY _path:/usr/local/cuda-8.0/lib64

Change the way you add these variables to the following:

Export path= $PATH:/usr/local/cuda/bin
export ld_library_path= $LD _library_path:/usr/local/cuda/lib64
Export Library_path= $LIBRARY _path:/usr/local/cuda/lib64

After you modify it, you need to refresh it:

source. BASHRC

Then switch to Cuda version 9.0 below.

2. Download CUDA 9.0 's Run file from the official website, during the installation process, choose not to establish a soft connection.
3. Switch Cuda 9.0 and use the command below.

sudo rm-rf/usr/local/cuda
sudo ln-s/usr/local/cuda-9.0/usr/local/cuda
NVCC--version

You can see that the current Cuda version becomes 9.0.