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		+	2016:  this tutorial is outdated and doesn't work since the ipython stuff got renamed to "Jupyter".
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	== Ipython ==		== Ipython ==

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Revision as of 12:46, 24 February 2016

2016: this tutorial is outdated and doesn't work since the ipython stuff got renamed to "Jupyter".

Ipython

Ipython provides both a command line and browser based (notebook) interfaces. The development is quite fast, so the distribution provided packages tend to lag behind enough it makes sense to setup a python environment which incorporates the latest updates.

building an Ipython notebook environment

Login to a corn and make yourself an Ipython environment in the non-AFS space

mkdir -p /farmshare/user_data/$USER/ipythontest
cd /farmshare/user_data/$USER/ipythontest
virtualenv --system-site-packages devbranch
devbranch/bin/pip install --upgrade ipython
devbranch/bin/pip install --upgrade tornado
devbranch/bin/pip install jsonschema
cp -p /farmshare/software/examples/ipython/audio.ipynb .

To run Ipython notebook environment, first start it up:

devbranch/bin/ipython notebook `%pylab inline` --no-browser

You should see output similar to following:

2013-12-03 21:39:50.435 [NotebookApp] Created profile dir: u'/afs/ir.stanford.edu/users/b/i/bishopj/.config/ipython/profile_default'
2013-12-03 21:39:50.465 [NotebookApp] Using MathJax from CDN: http://cdn.mathjax.org/mathjax/latest/MathJax.js
2013-12-03 21:39:50.599 [NotebookApp] Serving notebooks from local directory: /srv/zfs01/user_data/bishopj/ipyhtontest
2013-12-03 21:39:50.599 [NotebookApp] The IPython Notebook is running at: http://127.0.0.1:8888/
2013-12-03 21:39:50.599 [NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).

Setup an ssh tunnel from your desktop system to the same corn system you ran the notebook on in previous step. In my case port 8888 and corn02.

ssh -L 8888:localhost:8888 corn02

Now again from your desktop system open a web browser and navigate to 'localhost:8888'

You should see

Now click on Cluster and startup your cluster

Click back on the Notebook tab and you should see an audio notebook. click on this.

Now you can load up a notebook and "play"