This directory contains the Pluto Planetary Climate Model (PPCM) physics package and related files.
You might want to start with the user manual (and online Wikimedia documentation)

Overview of LMDZ.PLUTO directory contents:
* Files:
- README: this file
- Licence_CeCILL_V2-en.txt and Licence_CeCILL_V2-fr.txt: the software (free) licence
- changelog.txt: Record of code changes (mostly for maintainers)
https://lmdz-forge.lmd.jussieu.fr/mediawiki/Planets/index.php/Main_Page

* Directories:
- datadir: various external datasets needed by the PPCM at run-time
- deftank: examples of input parameters and settings for the PPCM runs
- libf: Fortran source code of the Mars physics package
- startfiles: PPCM initial state files
- util: post-processing utilities for PPCM outputs