Add nvcc 11.5 to CI

[bernhardmgruber]

Fixes #1475

[psychocoderHPC]

Why do we not add it to the HZDR CI. We are working on removing such jobs from the workflows, IMO this is doubling the work.

[bernhardmgruber]

Why do we not add it to the HZDR CI. We are working on removing such jobs from the workflows, IMO this is doubling the work.

Because I have less experience with the GitLab CI and nobody else did it. But please, go ahead and add the GitLab CI jobs! I can close this PR when yours is ready.

[psychocoderHPC]

It is equal to adding it to git workflows. The difference is that it is not on one line.

alpaka/script/gitlabci/job_cuda.yml

Lines 2 to 12 in ac1ccf3

	linux_nvcc-11.0_gcc-7_release:
	extends: .base_cuda_gcc
	variables:
	ALPAKA_CI_UBUNTU_VER: "20.04"
	ALPAKA_CI_CUDA_VERSION: "11.0"
	ALPAKA_CI_GCC_VER: 7
	ALPAKA_CI_STDLIB: libstdc++
	CMAKE_BUILD_TYPE: Release
	ALPAKA_BOOST_VERSION: 1.68.0
	ALPAKA_CI_CMAKE_VER: 3.20.0
	CMAKE_CUDA_ARCHITECTURES: "50;60"

Best is to have a base job file per cuda version and than add it to .gitlab.yml but you removed it in one of the last PRs.

[psychocoderHPC]

@SimeonEhrig mentioned yesterday that NVIDIA is currently not providing CUDA 11.5 docker containers because they have issues building them. The HZDR CI is using CUDA docker container as a base to avoid driver issue I got with normal ubuntu container when installing CUDA via apt only.
So we will merge this one before #1491 and I will work on fixing the dependency to NVIDIA docker container in the HZDR CI if NVIDIA is not providing docker container before I can work on this topic.

[psychocoderHPC]

Could you please update the build matrix in README.md .

[SimeonEhrig]

@SimeonEhrig mentioned yesterday that NVIDIA is currently not providing CUDA 11.5 docker containers because they have issues building them. The HZDR CI is using CUDA docker container as a base to avoid driver issue I got with normal ubuntu container when installing CUDA via apt only. So we will merge this one before #1491 and I will work on fixing the dependency to NVIDIA docker container in the HZDR CI if NVIDIA is not providing docker container before I can work on this topic.

https://gitlab.com/nvidia/container-images/cuda/-/issues/142