SUHMO is an adaptive-mesh code for simulating the 2D evolution of subglacial hydrology. SUHMO is parallelized with MPI for CPUs. Support for complex geometries so far is minimal.

SUHMO relies on the Software for Adaptive Solutions of Partial Differential Equations CHOMBO (home page).

A partial documentation with tutorials for SUHMO is available here.

A first simple 2D channelizing problem is available under the SUHMO QuickStart section:

https://ennadelfen.github.io/SUHMO/GettingStarted

The SUHMO governing equations and core algorithm are described in:

https://ennadelfen.github.io/SUHMO/Model

A set of self-contained tutorials describing more complex problems is also provided:

https://ennadelfen.github.io/SUHMO/Tutorials

New contributions to SUHMO are welcome !

The SUHMO contributions workflow follows these steps:

1. Fork the main repository
2. Create an AmazingNewFeature branch implementing your changes
3. Open a Pull Request from AmazingNewFeature on your fork to branch development of the main SUHMO repository

Follow GitHub directions to fork SUHMO main repo on your GitHub account, then clone the SUHMO dependencies (CHOMBO) along with your own SUHMO fork on your local machine.

Then step into the SUHMO folder and add the main SUHMO repository as the upstream remote in order to keep track of the main repo :

   git add remote upstream https://github.com/EnnaDelfen/SUHMO

At any point, you can update the developement branch of your local repository with changes implemented in the main repo by pulling from upstream :

    git checkout development
    git pull upstream development

You are now free to modify your own fork! To add a new feature, the procedure is:

1. Create a branch for the new feature from the development branch (locally):

    git checkout development 
    git checkout -b AmazingNewFeature
   

2. and commit your changes to your local repo:

    git commit -m "Developed AmazingNewFeature"
   

3. Alongside your development, regularly merge changes from the main repo development branch into your AmazingNewFeature branch, fix any conficts, and push your changes to your GitHub fork:

    git pull upstream development     [Fix arising conflicts]
    git push -u origin AmazingNewFeature 
   

4. When you are ready to propose your new feature/improvement/bug fix to the main SUHMO repo, reiterate Step 3 and submit a Pull Request through the GitHub page from your fork onto the development branch of the main repo:

• Click on the compare & pull request button to start your PR.
• Provide a title and a short description for your PR:
  • what feature/fix do you propose
  • how did you test it
  • any other information deemed useful : does it modify the default SUHMO behavior ? Does it break retro compatibility for certain tests ? ...
• Press Create pull request.

Please DO NOT write large Pull Requests, as they are very difficult and time-consuming to review. As much as possible, split them into small targeted PRs. For example, if you find typos in the documentation open a pull request that only fixes typos. If you want to fix a bug, make a small pull request that only fixes this bug.