Revision as of 22:10, 28 April 2017

Current Supported Versions in HPC

Import Modules

TensorFlow v0.10.0rc0 (CPU Support Only)

module load python/2.7.6

TensorFlow v0.12.1 (Both GPU and CPU Support)

　module load cuda/8.0.61 cudnn/6.0 python/2.7.6-gcc-unicode

Application Usage

Check Version Number

 $ python
 Python 2.7.6 (default, Apr 20 2016, 16:39:52) 
 [GCC 4.8.2] on linux2
 Type "help", "copyright", "credits" or "license" for more information.
 >>> import tensorflow as tf
 >>> print tf.__version__
 0.12.1
 >>>

Example: How to Build Computational Graph

$ python
Python 2.7.6 (default, Apr 20 2016, 16:39:52) 
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import tensorflow as tf
>>> node1 = tf.constant(3.0, tf.float32)
>>> node2 = tf.constant(4.0)
>>> node3 = tf.add(node1, node2)
>>> sess = tf.Session()
>>> sess.run(node3)
7.0
>>> a = tf.placeholder(tf.float32)
>>> b = tf.placeholder(tf.float32)
>>> adder_node = a + b
>>> print(sess.run(adder_node, {a: 3, b:4.5}))
7.5
>>> print(sess.run(adder_node, {a: [1,3], b: [2, 4]}))
[ 3.  7.]
>>> add_and_triple = adder_node * 3
>>> print(sess.run(add_and_triple, {a: 3, b:4.5}))
22.5
>>>

Example: Logging Device placement (GPU Version Guide)

More Examples

https://www.tensorflow.org/tutorials/mandelbrot