Linux下安装theano

http://deeplearning.net/software/theano/install_ubuntu.html#install-ubuntu

以上链接为官网安装教程

在ubuntu中安装theano相对于在window上安装简单很多。

如果你是Ubuntu 16.04系统

安装流程如下：

sudo apt-get install python-numpy python-scipy python-dev python-pip python-nose g++ libopenblas-dev git
sudo pip install Theano

# cuda 7.5 don't support the default g++ version. Install an supported version and make it the default.
sudo apt-get install g++-4.9

sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.9
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc- 

sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.9
sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++- 

sudo update-alternatives --install /usr/bin/cc cc /usr/bin/gcc
sudo update-alternatives --set cc /usr/bin/gcc

sudo update-alternatives --install /usr/bin/c++ c++ /usr/bin/g++
sudo update-alternatives --set c++ /usr/bin/g++

# Work around a glibc bug
echo -e "\n[nvcc]\nflags=-D_FORCE_INLINES\n" >> ~/.theanorc

如果你是Ubuntu 11.10 到 14.04版本

安装流程如下：

sudo apt-get install python-numpy python-scipy python-dev python-pip python-nose g++ libopenblas-dev git
sudo pip install Theano

如果你的版本是Ubuntu 11.04

安装流程如下：

sudo apt-get install python-numpy python-scipy python-dev python-pip python-nose g++ git libatlas3gf-base libatlas-dev
sudo pip install Theano

以上安装是基于python2 的

在版本Ubuntu 14.04 上如果你想使用python3 请将上述的

sudo apt-get install python-numpy python-scipy python-dev python-pip python-nose g++ libopenblas-dev git

修改为：

sudo apt-get install python3-numpy python3-scipy python3-dev python3-pip python3-nose g++ libopenblas-dev git

使用下述代码验证python包有没有安装成功

1. NumPy (~30s):

   python -c "import numpy; numpy.test()"

2. SciPy (~1m): 

   python -c "import scipy; scipy.test()"

3. Theano (~30m):

    python -c "import theano; theano.test()"