HPC:Tensorflow

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Basic Anaconda Tensorflow GPU installation

By April 21st, 2018, Anaconda 3 (i.e. running Python 3.5 or above) has evolved enough to provide functional GPU-based instances of Tensorflow, running on iPython or Jupyter notebook.

In the worker nodes, it is recommended to use non interactive scripts; however, it is under study the provision of Jupyter-notebook and/or iPython in the worker nodes (not recommended). A better alternative to be addressed is the installation of Jupyter-hub in the frontend to control python slave processes in the worker nodes.

To test the GPU-based Tensorflow functionality on the worker nodes, the following procedure has been performed

• Create a test user:

# adduser test
# passwd test
# su test
$ cd ~

• Download and install Anaconda3 v. 5.1.0

$ wget https://repo.anaconda.com/archive/Anaconda3-5.1.0-Linux-x86_64.sh
$ bash Anaconda3-5.1.0-Linux-x86_64.sh
$ cd anaconda3/bin
$ ./conda install tensorflow-gpu

• Test in iPython the GPU functionality and Tensorflow general behavior

$ ./ipython

• Code for iPython:

import tensorflow as tf
# Creates a graph.
a = tf.constant([1.0, 2.0, 3.0, 4.0, 5.0, 6.0], shape=[2, 3], name='a')
b = tf.constant([1.0, 2.0, 3.0, 4.0, 5.0, 6.0], shape=[3, 2], name='b')
c = tf.matmul(a, b)
# Creates a session with log_device_placement set to True.
sess = tf.Session(config=tf.ConfigProto(log_device_placement=True))
# Runs the op.
print(sess.run(c))