Code Generation for PDEs tutorial

See merge request walberla/walberla!326

Frederik Hennig authored 4 years ago and Markus Holzer committed 4 years ago

- Added folder 'codegen' to 'apps/tutorials'
- Implemented heat equation code generation in python
- Implemented C++ application for running the generated code
- Added CMake build files for code generation tutorial

Update CMakeLists.txt

See merge request walberla/walberla!328

Disable dlopen trick on OpenMPI >= 3.0.0

See merge request walberla/walberla!325

Suppress signedness warning in GPUField.impl.h

See merge request walberla/walberla!322

DistanceComputations.h: include "core/logging/Logging.h"

See merge request walberla/walberla!321

DistanceComputations.h uses logging macros but does not include the
header unconditionally.

nrOfGhostLayers_ is unsigned while all cell_idx_t calculations are
signed.

Inline pe_coupling::overlapFractionPe

See merge request walberla/walberla!315

change docu image to gcc

See merge request walberla/walberla!324

Fluctuating MRT: propagate the RNG counter to all copies of the lattice model

See merge request walberla/walberla!320

If a process started by mpiexec finishes too quickly, sometimes some of the other processes are not started.
It is unclear whether this is an OpenMPI or macOS bug, but appears significantly more often since moving from macOS 10.13 to 10.15. OpenMPI 4.0.1 and 3.0.0 both show the issue on macOS 10.15.

Michael Kuron authored 4 years ago and Dominik Thoennes committed 4 years ago

Workaround for https://github.com/open-mpi/ompi/issues/5798

Update CMake boost python logic and std::filesystem usage

See merge request walberla/walberla!319

The two-argument version was removed late in the standardization process

We need to have at least one other required library, otherwise FindBoost will consider itself successful even if it didn't find anything.
Also, add Python 3.8 support by using the Python version numbers as library version numbers.

Adapting flake8 formatig for python files

See merge request walberla/walberla!317

[BUGFIX] caching of buffers can lead to dead locks

See merge request walberla/walberla!318

If load balancing changes the neighborhood, caching of receive
buffers can lead to dead locks.