Linux mint Note

Linux Mint 18.3 is based on Linux Ubuntu 16.04.

1. su failure: 

sudo passwd root

1. Local time:

timedatectl set-local-rtc 1

grep LOCAL /etc/adjtime

2. Nvidia Driver:

sudo add-apt-repository ppa:graphics-drivers/ppa

sudo apt-get update

Then install the latest version of Nvidia Driver from 'Driver Management'

Or in the terminal:

sudo apt install nvidia-390 nvidia-settings

3. Install CUDA:

sudo dpkg -i cuda-repo-ubuntu1604_9.2.88-1_amd64.deb

sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1604/x86_64/7fa2af80.pub

sudo apt-get update

sudo apt-get install cuda

The pwd of CUDA is: /usr/local/cuda  and '/usr/local/cuda-9.2'

wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1604/x86_64/cuda-repo-ubuntu1604_9.1.85-1_amd64.deb

sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1604/x86_64/7fa2af80.pub

sudo dpkg -i cuda-repo-ubuntu1604_9.1.85-1_amd64.deb

sudo apt-get update

sudo apt-get install -y cuda nvidia-cuda-toolkit

4. Install Anaconda: 

alias python = python3

source .bashrc

5. Eigen3

sudo tar -xzvf eigen.tar.gz -C /usr/local/include

sudo mv /usr/local/include/eigen /usr/local/include/eigen3

sudo cp -r /usr/local/include/eigen3/Eigen /usr/local/include

因为eigen3 被默认安装到了usr/local/include里了（usr/include），在很多程序中include时经常使用#include<Eigen/Dense> 而不是使用#include<eigen3/Eigen/Dense>, 上面指令将usr/local/include/eigen3文件夹中的Eigen文件复制到上一层文件夹, 直接放到/usr/local/include中

cd /usr/local/include

sudo ln -sf eigen3/Eigen Eigen

sudo ln -sf eigen3/unsupported unsupported

https://github.com/piratf/MatrixH/blob/master/Matrix.h