remove allow-run-as-root in MPIEXEC_PREFLAGS it is handled via the environment variables in the docker images
check for intelclang or clang before checking for OpenMP bug

Michael Kuron authored Dec 28, 2020 and Markus Holzer committed Dec 28, 2020

Some optional components use Boost MultiArray and PropertyTree, so we still include the headers if available.
We also still search std::experimental for any, filesystem and optional because some otherwise C++17-compliant compilers did not support them in std until recently.

Markus Holzer authored Dec 17, 2020 and Dominik Thoennes committed Dec 17, 2020

also clean up some old leftovers nearby

The new CI has four stages:
1. **pretest** jobs are run automatically as a first check
2. **test** jobs run at each commit but contain only a limited number of configurations
3. **merge_request** these jobs need to be run **manually** before merging a merge request
4. **benchmark** benchmarks are only run manually if needed

Michael Kuron authored Jul 29, 2020 and Dominik Thoennes committed Jul 30, 2020

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

274e09cd introduced a skip of the generation if the target file is not
present. While this might hint a wrong target directory it also prevents the
generation of new files. Since the provided mesa_pd.py script asks to
confirm the target directory anyway, this skip is removed.

Since some benchmarks/tutorials are registered as tests they have to be
built in order to run.

use cuda as a first level language in CMake with `enable_language(CUDA)`
enable tests where cuda and codegen are both activated
various minor fixes