Robin De Schepper

I'm low on time, but I'll try in the near future

I .. uh... LGTM? 👍 ??

@thorstenhater the help text still lists ` --gpu gpu `, is the value still required? Edit: I also get this build error on your branch: ``` [ 91%] Building CXX...

This is my entire session on PizDaint, note that after this followed a few more rounds of `rm build` `mkdir build` blabla ... [build_adventure.txt](https://github.com/arbor-sim/arbor/files/9585062/build_adventure.txt)

Now it builds, but I'm getting `"gpu": None` after building with CUDA: ``` (arbenv) bp000347@daint101:~/arbenv/arbor/build> CC=cc CXX=CC cmake .. \ > -DARB_WITH_MPI=ON \ > -DARB_WITH_PROFILING=OFF \ > -DARB_GPU=cuda \ >...

New build error after pulling: ``` [ 36%] Building CXX object arbor/CMakeFiles/arbor.dir/communication/mpi_context.cpp.o [ 36%] Building CXX object arbor/CMakeFiles/arbor.dir/__/mechanisms/generated/bbp/bbp_catalogue.cpp.o make[2]: *** No rule to make target 'mechanisms/generated/bbp/CaDynamics_E2_gpu.cpp', needed by 'arbor/CMakeFiles/arbor.dir/__/mechanisms/generated/bbp/CaDynamics_E2_gpu.cpp.o'. Stop....

[arbor.txt](https://github.com/arbor-sim/arbor/files/9707132/arbor.txt)

Still errors out building on PizDaint with GPU. I'll attach the log on Monday. But is your bors build passing now?

Yours is a bit more extensive than mine, but mine *used* to work. Could you give it a go with this setup to confirm something is afoot? ``` module load...

Will update as I go * Have read access to all our instructions. (User code isn't always a flat list of instructions, we have our own routines for generating instructions...