René Widera

> @psychocoderHPC does it mean that all possible accelerator tags will always be defined, even if the corresponding accelerators and backends are not available ? In my draft, the tags...

@bernhardmgruber > would look like this: > `std::is_same_v` Yes a separate trait is possible too. At the end I like to converge to the suggestion https://github.com/alpaka-group/alpaka/issues/944 that we can use...

At the moment I think the second solution from @bernhardmgruber is the correct way to enable/disable backends. IMO the right way would be that alpaka is providing targets for all...

> So we would have an additional target per backend that is always there (even if e.g. alpaka_ACC_GPU_CUDA_ENABLE is OFF)? No each variable should have 3 states. `ON`, `OFF` and,...

> Maybe I don't need to use a very modern software (or compile) environment. Can you provide me with the environment you are using? I'm not sure whether this is...

The CI is not happy with your formation.

@pordyna Could it be that you missed updating the plots in the first post of this PR? We should update those too to reflect the current state of the PR.

@pordyna Why is in [TH_debug_7.png](https://github.com/ComputationalRadiationPhysics/picongpu/pull/4295/files#diff-337b95266d681ca18db99e450987bcb2a2c32048787c4f626c7b9bfdf0f4907e) the right plot for PIConGPU and smile differently?

All is fine the help looks correct. ``` echo "-t | --tpl [file] - Template to create a batch file from." echo " tbg will use stdin, if no file...

`tbg -c cfgFile -s -t destinationPath` is not working because the definition of the help string is `egetopt -o t::c::s::o:fh -l tpl::,cfg::,submit::,force,help -n tbg ++ "$@` `egetopt` is not supporting...