Initial commit of the open source version of the waLBerla framework

If you have access to the old closed source waLBerla repository, you may restore the complete history with the following command
git fetch git@i10git.cs.fau.de:software/walberla.git 'refs/replace/*:refs/replace/*'

.gitignore

+# Qt
+moc_*
+ui_*
+qrc_*
+*~
+
+# Backup files of kate/kwrite
+
+# Generated files
+*.out
+/src/waLBerlaDefinitions.h
+/src/core/waLBerlaBuildInfo.cpp
+
+# Eclipse
+/.cproject
+/.project
+/.pydevproject
+/.settings
+
+# Binary Files
+/bin/
+/lib/
+*.a
+/build
+
+
+# Logfiles
+logfile*.txt
+*TestLog_p*.txt
+
+
+# Compiled python
+*.pyc
+
+# Blockforest saves
+*.sav
+
+
+/utilities/.idea
+/utilities/py_waLBerla/.idea
+/python/.idea
+
+/src/stencil/.idea
+
+/CMakeLists.txt.user
+
+# CMake build files
+CMakeFiles
+Makefile
+/CMakeCache.txt
+CTestTestfile.cmake
+/DartConfiguration.tcl
+cmake_install.cmake
+CMakeDefs.h
+/moduleStatistics.json
+/walberla-config.cmake

.mailmap

+<christian.godenschwager@fau.de>      <christian.godenschwager@informatik.uni-erlangen.de> 
+<florian.schornbaum@fau.de>           <florian.schornbaum@informatik.uni-erlangen.de> 
+<martin.bauer@fau.de>                 <martin.bauer@informatik.uni-erlangen.de>
+<martin.bauer@fau.de>                 <bauer_martin@gmx.de> 
+<Daniela.Anderl@lstm.uni-erlangen.de> <daniela.anderl@lstm.uni-erlangen.de> 
+<regina.ammer@fau.de>                 <regina.ammer@informatik.uni-erlangen.de> 
+<matthias.markl@fau.de>               <matthias.markl@ww.uni-erlangen.de>
\ No newline at end of file

AUTHORS.txt

+Lead developers
+---------------
+
+Christian Godenschwager
+Christoph Rettinger
+Martin Bauer
+Sebastian Eibl
+
+
+Contributors
+------------
+
+Christian Feichtinger
+Daniel Ritter
+Daniela Anderl
+David Staubach
+Dominik Bartuschat
+Ehsan Fattahi
+Felix Winterhalter
+Florian Schornbaum
+Jan Götz
+Johannes Habich
+Klaus Iglberger
+Kristina Pickl
+Lorenz Hufnagel
+Matthias Markl
+Michael Kuron
+Regina Ammer
+Sagar Dolas
+Silke Bergler
+Simon Bogner
+Stefan Donath
+Sunil Kontham
+Tobias Preclik
+Tobias Scharpff
+Tobias Schruff

CONTRIBUTING.txt

+Contributing to waLBerla will require a signed copy of the Chair for System
+Simulation Contributor Agreement (LSSCA). The LSSCA is an adapted version of
+the Sun/Oracle Contributor Agreement.
+
+Signing a contributor agreement is necessary for many reasons. For an overview,
+see http://oss-watch.ac.uk/resources/cla.
+
+You can download the LSSCA at http://walberla.net/lss_contributor_agreement.pdf.
+Please send a signed copy to us via fax (+49 9131 85-28928) or mail it to
+
+Universität Erlangen-Nürnberg
+Lehrstuhl für Systemsimulation (Informatik 10)
+Cauerstraße 11
+91058 Erlangen
+Germany
+
+After we have received your agreement, we will create a GitLab account on
+https://i10git.cs.fau.de/ for you. GitLab Merge Requests are the only acceptable
+facility for code submission. Please do not use GitHub pull requests and do not
+send patches by email.
+
+Thank you for contributing!
\ No newline at end of file

CTestConfig.cmake

+## This file should be placed in the root directory of your project.
+## Then modify the CMakeLists.txt file in the root directory of your
+## project to incorporate the testing dashboard.
+##
+## # The following are required to submit to the CDash dashboard:
+##   ENABLE_TESTING()
+##   INCLUDE(CTest)
+set(CTEST_PROJECT_NAME "waLBerla")
+set(CTEST_NIGHTLY_START_TIME "01:00:00 UTC")
+
+set(CTEST_DROP_METHOD "http")
+set(CTEST_DROP_SITE "www10.informatik.uni-erlangen.de")
+set(CTEST_DROP_LOCATION "/Research/Projects/walberla/CDash/submit.php?project=waLBerla")
+set(CTEST_DROP_SITE_CDASH TRUE)
+
+set (MEMORYCHECK_COMMAND:FILEPATH "/usr/bin/valgrind")
+set (MEMORYCHECK_COMMAND_OPTIONS "--show-reachable=no")
+set (MEMORYCHECK_SUPPRESSIONS_FILE "${CMAKE_SOURCE_DIR}/openmpi-valgrind.supp")

README.md

+# 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 http://walberla.net/ for more information and a showcase of applications.
+
+## Documentation and Tutorials
+
+Documentation for the C++ framework is available in
+[Doxygen](http://walberla.net/doxygen/index.html), while the Python interface
+is documented in [Sphinx](http://walberla.net/sphinx/index.html).
+
+## Getting started
+
+The minimum requirements are a C++11-compliant compiler (e.g. GCC or Clang),
+the [Boost](http://www.boost.org) library and the [CMake](http://www.cmake.org)
+build system. Furthermore, you need an MPI library (like
+[Open MPI](http://www.open-mpi.org)) 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](https://i10git.cs.fau.de/walberla/walberla). To get an account, please
+sign and submit the [contributor license agreement](CONTRIBUTING.txt).
+
+### Support
+
+While we currently do not have a mailing list, any questions can be asked via
+the [Issue Tracker](https://i10git.cs.fau.de/walberla/walberla/issues).
+
+## Authors
+
+Many thanks go to waLBerla's [contributors](AUTHORS.txt)
+
+### 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](COPYING.txt).

apps/CMakeLists.txt

+
+# Benchmarks
+if ( WALBERLA_BUILD_BENCHMARKS )
+    add_subdirectory ( benchmarks )
+else ()
+    add_subdirectory ( benchmarks EXCLUDE_FROM_ALL )
+endif()
+
+
+# Tools
+if ( WALBERLA_BUILD_TOOLS )
+    add_subdirectory ( tools )
+else ()
+    add_subdirectory ( tools EXCLUDE_FROM_ALL )
+endif()
+
+
+# Tutorials
+if ( WALBERLA_BUILD_TUTORIALS )
+    add_subdirectory ( tutorials )
+else ()
+    add_subdirectory ( tutorials EXCLUDE_FROM_ALL )
+endif()
+
+
+# Python module
+if ( WALBERLA_BUILD_WITH_PYTHON )
+    add_subdirectory( pythonmodule )
+    # no else with "EXLUDE_FROM_ALL" here, since if WALBERLA_BUILD_WITH_PYTHON_MODULE is not activated
+    # waLBerla was build without -fPIC , so no linking into shared library is possible
+endif()
+

apps/benchmarks/CMakeLists.txt

+add_subdirectory( CouetteFlow )
+add_subdirectory( NonUniformGrid )
+add_subdirectory( PoiseuilleChannel )
+add_subdirectory( SchaeferTurek )
+add_subdirectory( UniformGrid )
\ No newline at end of file

apps/benchmarks/CouetteFlow/CMakeLists.txt

+
+waLBerla_link_files_to_builddir( "*.dat" )                 
+                                  
+waLBerla_add_executable( NAME CouetteFlow DEPENDS blockforest boundary core field lbm postprocessing stencil timeloop vtk )
+
+##############
+# Some tests #
+##############
+
+waLBerla_execute_test( NO_MODULE_LABEL NAME CouetteFlowTestNoCheckRelease COMMAND $<TARGET_FILE:CouetteFlow> ${CMAKE_CURRENT_SOURCE_DIR}/TestNoC