Tensorflow installation

Ref: https://www.tensorflow.org/install/install_mac

1. 安裝 virtual env

 $ sudo easy_install pip
 $ sudo pip install --upgrade virtualenv
 

2. 假設用 ~/tensorflow 當目錄

 $ virtualenv --system-site-packages ~/tensorflow
 

3. 執行

 $ source ~/tensorflow/bin/activate      # If using bash, sh, ksh, or zsh
 $ source ~/tensorflow/bin/activate.csh  # If using csh or tcsh
 

(tensorflow)$

離開

(tensorflow)$ deactivate

4. 驗證

hello-tf.py
----

import tensorflow as tf

hello = tf.constant("Hello, TensorFlow!");

sess = tf.Session()

print(sess.run(hello))

-----

(tensorflow)$ hello-tf.py

W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use SSE4.1 instructions, but these are available on your machine and could speed up CPU computations.

W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use SSE4.2 instructions, but these are available on your machine and could speed up CPU computations.

W tensorflow/core/platform/cpu_feature_guard.cc:45] The TensorFlow library wasn't compiled to use AVX instructions, but these are available on your machine and could speed up CPU computations.

Hello, TensorFlow!