Install

Requirements

LTB-Symm is written in Python. To function properly Python 3.8+ is required.

Operating system

LTB-Symm has been developed and tested on both Linux and MacOS. In both of these operating systems, installation process is similar. Although on MacOS there is an extra pre-step, i.e. make sure you have pip installed by typing the command below in your terminal:

% python -m ensurepip

In principle it should be possible to install the code on Windows machines, but we have not tested it, yet. Again you can install pip by executing the following command in cmd:

> curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
> python get-pip.py

Install through pip

You can simply install with:

$ pip install ltb-symm

If you have it already install, you may use option --upgrade to have the latest version.

If installation failed, please make sure all dependencies correctly installed. That includes;

numpy scipy matplotlib mpi4py tqdm primme

Required versions:

• NumPy 1.19.5+

• Scipy 1.10.0+

• Primme 3.2

Note you need a working MPI implementation for mpi4py to succesfully function.

Source code

LTB-Symm is publicly available at GitHub under GNU General Public License v3.0 : https://github.com/khsrali/LTB-Symm

For doubt and question, feel free to directly contact us. Email: khsrali@gmail.com

How to run

Simply write an input file (see examples) and run using you python interpreter:

For example:

$ python input.py

Or alternatively if you want to use MPI feature, for instance on a HPC with 32 core each node:

$ mpirun --map-by ppr:32:node python input.py