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Software Setup

In order to be able to execute the notebooks with the tutorials, you should configure your workspace following one of the options below. If you have trouble or need help setting the workspace up, you can contact the GW community at ask.igwn.org. We encourage the participants to test the following steps beforehand of the hands-on sessions.

The various options are listed in order of difficulty. However, whenever possible, we recommend the participants with some experience with Python environments to follow Option 3, installing the requirements on their laptops and executing the tutorial notebooks from there. This has the advantage of avoiding any possible issue with online servers, including unstable internet connection or uneven memory and server availability, both on Colab and on MyBinder.

Option 1: Google Colab

Easy (No software installation; Works for any OS)

Video instructions

  1. To run the notebooks, click the badge: Colab

  2. Double click the notebook of your choice

  3. At the top of the notebook, uncomment any pip install commands by removing the #

    #! pip install -q 'gwosc==0.5.4 <-- Remove the # and run

    Warnings: a couple of warning messages are likely to show up, both of them are harmless.

    • Unrecognized runtime "igwn-py3#"; defaulting to "python3"

      This pop-up simply notifies you that this notebook has been created with a Python environment different than the default one of Colab. That's not a big deal because you will install all the missing dependencies with the command above.

    • WARNING: This notebook was not authored by Google.

      Same as before. Just close the pop-up and go ahead without worrying too much.

  4. Click run all from the runtime menu at the top

If you are not familiar with google Colab, you can beforehand take a look at the guides offered by Google at this link, in the "Examples" tab. In particular, it is recommended to have a certain understanding of the main features of notebooks, which you can learn in this tutorial.

Option 2: Run in mybinder

Easy (No software installation; Works for any OS) - Warning: note that mybinder can take several minutes to load.

Video instructions

To run the notebooks, click the badge: Binder

This will build a Docker image (if not already present) with the dependency file environment.yml. Then a JupyterHub server will be open hosting the contents of the gw-odw/odw-2024 repo. To find the Tutorials, click the folders Tutorials, and then Day 1, Day 2, or Day 3 to find the tutorials.

Option 3: You have a Linux or Apple/Mac computer -- Use conda

Intermediate (Some software installation; Will not work on Windows PC)

Video instructions

This workshop uses Python version 3.9. We recommend creating a Python virtual environment and install all the package dependencies there. The official environment with all the required packages is igwn-py39, available from the International Gravitational-Wave Observatory Network (IGWN) community website. However, this environment can take about 4 Gb of space in your local pc so we provide also a light-weight version of this environment, with only the strictly necessary packages to execute the notebooks reducing to about 1 Gb the space needed and reducing also the time needed for installation.

This guide will walk you through the configuration of these environments with Conda.

  1. Install miniconda:

    You may need to restart your computer after installation.

  2. If you want to install the full igwn-py39 environment, download the YML dependencies file for the IGWN website:

    Instead, for the light-weight environment, you can directly use the YML file from this repository:

    Note: the name of the light-weight environment is igwn-py39-lw to distinguish it from the official one, igwn-py39. In the following steps, remember to add the "-lw" subfix to the name.

  3. Add the conda-forge channel

    conda config --add channels conda-forge

  4. Create the environment.

    • Full igwn-py39 environment: conda env create --file igwn-py39.yaml
    • Light-weight environment: conda env create --file environment.yml

  5. Activate the environment.

    • Full igwn-py39 environment: conda activate igwn-py39
    • Light-weight environment: conda activate igwn-py39-lw

  6. Clone the workshop git repo

    git clone https://github.com/gw-odw/odw-2024.git

  7. Move into the directory with the workshop git repo

    cd odw-2024

  8. Build a custom jupyter kernel using the command

    • Full igwn-py39 environment:python -m ipykernel install --user --name igwn-py39 --display-name "Python (igwn-py39)"
    • Light-weight environment: python -m ipykernel install --user --name igwn-py39-lw --display-name "Python (igwn-py39-lw)"

  9. Start the Jupyter notebook server
    jupyter notebook and select the kernel igwn-py39 (or igwn-py39-lw) if this is not done by default.

Notebooks: If you are not familiar with Jupyter notebooks, google one of the many introductory guides available on the internet, like this one. Also, taking a look at the Examples offered by Google Colab can be helpful.

Option 4: Linux install on Windows with dedicated app (Windows 10 or 11)

Advanced (For Windows 10 or 11)

If you are using Windows and would like to run the notebooks directly, install Windows Subsystem for Linux. There are additional instructions here for getting started with the notebooks. Note that even if Conda works many packages needed for the Tutorials are not running on Windows at all, so we suggest to follow one of the previous options and not to run the Tutorials directly on Windows. Please indicate to us any problem or misunderstanding that you meet when following these steps. You can make comment directly on ask.igwn.org