#uninstall Cuda and NVidia

sudo apt-get remove nvidia-cuda-toolkit
sudo apt-get remove --auto-remove nvidia-cuda-toolkit
sudo apt-get purge nvidia-cuda-toolkit
sudo apt-get purge --auto-remove nvidia-cuda-toolkit
sudo apt-get autoremove --purge cuda
sudo apt-get --purge -y remove 'cuda*'
sudo apt-get --purge -y remove 'nvidia*'
sudo reboot



#!/bin/bash

# Purge existign CUDA first
sudo apt --purge remove "cublas*" "cuda*"
sudo apt --purge remove "nvidia*"

# Install CUDA Toolkit 10
wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/cuda-repo-ubuntu1804_10.0.130-1_amd64.deb
sudo apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/7fa2af80.pub && sudo apt update
sudo dpkg -i cuda-repo-ubuntu1804_10.0.130-1_amd64.deb

sudo apt update
sudo apt install -y cuda

# Install CuDNN 7 and NCCL 2
wget https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64/nvidia-machine-learning-repo-ubuntu1804_1.0.0-1_amd64.deb
sudo dpkg -i nvidia-machine-learning-repo-ubuntu1804_1.0.0-1_amd64.deb

sudo apt update
sudo apt install -y libcudnn7 libcudnn7-dev libnccl2 libc-ares-dev

sudo apt autoremove
sudo apt upgrade

# Link libraries to standard locations
sudo mkdir -p /usr/local/cuda-10.1/nccl/lib
sudo ln -s /usr/lib/x86_64-linux-gnu/libnccl.so.2 /usr/local/cuda/nccl/lib/
sudo ln -s /usr/lib/x86_64-linux-gnu/libcudnn.so.7 /usr/local/cuda-10.1/lib64/

echo 'If everything worked fine, reboot now.'