Installation

There are two methods to install the environment which is needed for following the NIFTy tutorial. First, install it regularly into the home folder of your machine. Second, use a Docker container. The advantage of the second approach is that the chance that it runs on a variety of machines is relatively high. The downsides are: You need root access to build and start the Docker container (security implications), a full Docker installation (security implications) and you need to be familiar with Docker in order to get your results out of the container.

Standard

• Install git, python3 and python3-pip, python3-scipy, python3-matplotlib. On Debian-based systems possibly:

# apt-get update
# apt-get install git python3-pip python3-scipy python3-matplotlib 

• Optionally, install our Fourier transform package ducc0:

$ pip3 install ducc0

• Clone this repository:

$ git clone --recursive https://gitlab.mpcdf.mpg.de/ift/nifty_tutorial.git

• Install nifty:

$ cd nifty_tutorial/nifty
$ pip3 install .

Docker

• To build the image, run the following command inside the nifty_tutorial folder.

# docker build -t niftytutorial .

• Start a container and mount your local folder /mnt into the folder /mnt in the container. Do this only if you know what you are doing!

# docker run -v /mnt:/mnt -it niftytutorial

Double-check the installation

Run the scripts *_solution.py from the repository, check that they run through and look at the output plots.