[llvm-dev] clang + cuda version issue

Burlen Loring via llvm-dev
Tue, 19 Jan 2021 23:48:38 -0000

I'm trying to get up and running with llvm/clang + cuda. llvm 11.0.1
successfully installed.

When I try to compile the simple example shown in llvm examples I get

    clang-11: warning: Unknown CUDA version. cuda.h: CUDA_VERSION=11020.
    Assuming the latest supported version 10.1 [-Wunknown-cuda-version]
    axpy.cu:23:7: error: use of undeclared identifier cudaConfigureCall
       axpy<<<1, kDataLen>>>(a, device_x, device_y);


I have cuda 11.2 installed however clang apparently needs cuda 10.1 and
I'm running fedora 33 which is too new for cuda 10.1. cuda 10.1 is
supported on fedora 29. I can't downgrade to fedora 29.

Is there a combo of llvm clang + cuda that works with fedora 33?

Is there any plan for llvm to use the latest cuda? on what time frame?

Thanks
Burlen




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