xvfb-run -s "-screen 0 1400x900x24" python pg_keras.py
xvfb-run -s "-screen 0 1400x900x24" python pg_tf.py
https://drive.google.com/open?id=1Yw5BfhfQp0mxPvvXyJ2HC4Z80dkTg-pLXasLVdo8wGs