cupla does not build with GCC 10 and CUDA 11 n C++17 mode about cupla HOT 5 CLOSED

hi @psychocoderHPC ,
I can confirm that using

• CUDA 11.2.1
• GCC 10.2.0 with -std=c++17
• Alpaka 0.6.0
• Cupla HEAD of the dev branch

the problem is solved.

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I could reproduce this issue exactly. Googling points you to exactly one result, which leads here:
NVIDIA/thrust#1268 (comment)

A later comment mentions a bug report to the compiler team has been filed. So I guess we have to wait for NVIDIA to fix this :S

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@fwyzard sry for the late response

Could you try if this error still exists in the current dev branch.
With the latest dev and included alpaka 0.6.0 and CUDA 11.2 I do not see the issue:

docker run --runtime=nvidia -it registry.gitlab.com/hzdr/crp/alpaka-group-container/alpaka-ci-cuda112-gccpic:1.2
git clone -b dev https://github.com/alpaka-group/cupla.git
cmake -DCMAKE_CXX_COMPILER=g++-10 -DALPAKA_ACC_GPU_CUDA_ENABLE=ON -DALPAKA_CUDA_ARCH=70  cupla/example/CUDASamples/matrixMul/ -DBOOST_ROOT=/opt/boost/1.70.0/

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hi @psychocoderHPC ,
thanks for the suggestion.

Do I just pick the HEAD of the dev branch together with Alpaka 0.6.0 ?

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hi @psychocoderHPC ,
I can confirm that using

• CUDA 11.2.1
• GCC 10.2.0 with -std=c++17
• Alpaka 0.6.0
• Cupla HEAD of the dev branch

the problem is solved.

Thanks for testing, I will close this issue.

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