waLBerla

waLBerla (widely applicable Lattice Boltzmann from Erlangen) is a massively parallel framework for multi physics applications. Besides its original objective, Lattice Boltzmann solvers for hydrodynamics, it now contains modules for other applications like Multigrid and rigid body dynamics as well. Great emphasis is placed on the interoperability between the modules in particular the fluid-particle coupling. It scales from laptops to current and future supercomputers while maintaining near-perfect efficiency.

See https://www.walberla.net/ for more information and a showcase of applications.

Documentation and Tutorials

Documentation for the C++ framework is available in Doxygen, while the Python interface is documented in Sphinx.

Getting started

The minimum requirements are a C++14-compliant compiler (e.g. GCC or Clang), the Boost library and the CMake build system. Furthermore, you need an MPI library (like Open MPI) if you want to make use of parallel processing capabilities. All of these dependencies are typically available in your operating system's package manager.

Get involved

Contributing

Please submit all code contributions on our GitLab. To get an account, please sign and submit the contributor license agreement.

Support

While we currently do not have a mailing list, any questions can be asked via the Issue Tracker.

Authors

Many thanks go to waLBerla's contributors

Please cite us

If you use waLBerla in a publication, please cite the following article:

• C. Godenschwager, F. Schornbaum, M. Bauer, H. Köstler, and U. Rüde. A framework for hybrid parallel flow simulations with a trillion cells in complex geometries. In: Proceedings of the International Conference on High Performance Computing, Networking, Storage and Analysis, page 35. ACM, 2013.

License

waLBerla is licensed under GPLv3.