2021 Ubuntu 18.04 install Cuda + cuDNN + Conda deep learning environment

1. Uninstall the NVIDIA driver

1. If dm is lightdm, you need to switch to gdm3

# Or use sudo /etc/init.d/lightdm stop
sudo service lightdm stop

sudo dpkg-reconfigure gdm3

2. Uninstall the NVIDIA driver

sudo /usr/bin/nvidia-uninstall

If not found, use the following command to uninstall

sudo apt-get install autoremove --purge nvidia*

3. If you have installed cuda, uninstall it

Uninstall command: sudo /usr/local/cuda-x-x/bin/*uninstall*

-cuda-x-x: Please replace according to the name in the specific directory
-*uninstall*: Please replace according to the name in the specific directory

cudnn uninstall (if installed)

Please uninstall according to the location where cudnn is installed

sudo rm -rf /usr/local/cuda/include/cudnn.h
sudo rm -rf /usr/local/cuda/lib64/libcudnn*

2. Install NVIDIA driver + CUDA 11.4

When writing the article, these two items have been concentrated in one installation package, and the versions have been matched

Download link: https://developer.nvidia.com/cuda-downloads

Download and install commands:

wget https://developer.download.nvidia.com/compute/cuda/11.4.1/local_installers/cuda_11.4.1_470.57.02_linux.run
sudo sh cuda_11.4.1_470.57.02_linux.run

Set environment variables

gedit ~/.bashrc

Add the following environment variables (pay attention to modify to your own path)

export PATH=/usr/local/cuda-11.4/bin${PATH:+:${PATH}}
export LD_LIBRARY_PATH=/usr/local/cuda-11.4/lib64${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}

Save and exit, terminal run

source ~/.bashrc

Check if it is correct

nvcc -V

3. cuDNN Installation

Download link: https://developer.nvidia.com/rdp/cudnn-download (account registration required)

Choose your own version, mine is CUDA11

Download three files to local

Install

sudo dpkg -i libcudnn8_8.2.2.26-1+cuda11.4_amd64.deb
sudo dpkg -i libcudnn8-dev_8.2.2.26-1+cuda11.4_amd64.deb
sudo dpkg -i libcudnn8-samples_8.2.2.26-1+cuda11.4_amd64.deb
sudo apt-get install libfreeimage3 libfreeimage-dev

an examination

cp -r /usr/src/cudnn_samples_v8/ $HOME
cd $HOME/cudnn_samples_v8/mnistCUDNN
make clean && make
./mnistCUDNN

4. Anaconda installation

Retrieve the latest version of Anaconda

From a web browser, go to the Anaconda Distribution page, available through the following link:

https://repo.anaconda.com/archive/

Find the latest Linux version and copy the installer bash script.

Download Anaconda Bash script

Log in to your Ubuntu 18.04 server as a sudo non-root user, enter the /tmp directory and use curl to download the link you copied from the Anaconda website:

cd /tmp
curl -O https://repo.anaconda.com/archive/Anaconda3-2019.03-Linux-x86_64.sh

Run the installation script

sudo sh Anaconda3-2019.03-Linux-x86_64.sh

You will receive the following output to view the license agreement, please press ENTER until you reach the end.

Welcome to Anaconda3 2019.03

In order to continue the installation process, please review the license
agreement.
Please, press ENTER to continue
>>>
...
Do you approve the license terms? [yes|no]

When you reach the end of the license, type yes as long as you agree to the license to complete the installation.

finish installation

Once you agree to the license, you will be prompted to choose an installation location. You can press ENTER to accept the default location, or specify a different location

Anaconda3 will now be installed into this location:
/home/sammy/anaconda3

  -Press ENTER to confirm the location
  -Press CTRL-C to abort the installation
  -Or specify a different location below

[/home/sammy/anaconda3] >>>

At this point, the installation will continue. Please note that the installation process takes some time

Choose an option

After the installation is complete, you will receive the following output:

installation finished.
Do you wish the installer to prepend the Anaconda3 install location
to PATH in your /home/sammy/.bashrc? [yes|no]
[no] >>>

It is recommended that you type yes to use the conda command

Activate the installation

source ~/.bashrc

Check if the installation is successful

conda list

Set Anaconda environment

You can use the conda create command to create an Anaconda environment. For example, my_env can use the following command to create a Python 3 environment named

sudo conda create --name my_env python=3