Ch `02`: Concept `04`

Session logging

Define an op on a tensor. Here's an example:



In [1]:

    
import tensorflow as tf

x = tf.constant([[1, 2]])
neg_op = tf.negative(x)

Now let's use a session with a special argument passed in.



In [3]:

    
with tf.Session(config=tf.ConfigProto(log_device_placement=True)) as sess:
    result = sess.run(neg_op)
    print(result)









    



[[-1 -2]]

Try this from a terminal. Jupyter notebooks won't show the logging info.