Book Image

Deep Learning with TensorFlow

By : Giancarlo Zaccone, Md. Rezaul Karim, Ahmed Menshawy
Book Image

Deep Learning with TensorFlow

By: Giancarlo Zaccone, Md. Rezaul Karim, Ahmed Menshawy

Overview of this book

Deep learning is the step that comes after machine learning, and has more advanced implementations. Machine learning is not just for academics anymore, but is becoming a mainstream practice through wide adoption, and deep learning has taken the front seat. As a data scientist, if you want to explore data abstraction layers, this book will be your guide. This book shows how this can be exploited in the real world with complex raw data using TensorFlow 1.x. Throughout the book, you’ll learn how to implement deep learning algorithms for machine learning systems and integrate them into your product offerings, including search, image recognition, and language processing. Additionally, you’ll learn how to analyze and improve the performance of deep learning models. This can be done by comparing algorithms against benchmarks, along with machine intelligence, to learn from the information and determine ideal behaviors within a specific context. After finishing the book, you will be familiar with machine learning techniques, in particular the use of TensorFlow for deep learning, and will be ready to apply your knowledge to research or commercial projects.
Table of Contents (11 chapters)

Assigning a single GPU on a multi-GPU system

If you have more than one GPU in your system, the GPU with the lowest ID will be selected by default. If you would like to run on a different GPU, you will need to specify the preference explicitly.

For example, we can try to change the GPU assignation in the previous code:

with tf.device('/gpu:1'): 
a = tf.placeholder(tf.float32, [10000, 10000])
b = tf.placeholder(tf.float32, [10000, 10000])
c1.append(matpow(a, n))
c1.append(matpow(b, n))

In this way, we are telling GPU to execute the kernel function.

If the device we have specified does not exist (as in my case), you will get the following error message on the console (or terminal):

InvalidArgumentError : 
InvalidArgumentError (see above for traceback): Cannot assign a device to node 'Placeholder_1': Could not satisfy explicit device specification '/device:GPU:1' because...