Compilation issues GPU variants [Clang-9/Kubuntu18.04, Nvidia 440.64,Cuda10.01, cmake 3.17]

[mitsuba-renderer]

Compilation issues GPU variants [Clang-9/Kubuntu18.04, Nvidia 440.64,Cuda10.01, cmake 3.17]

[dnakath]

Hi @Speierers,

I have been able to compile the CUDA-samples:

cuda-install-samples-10.1.sh /tmp/cuda-samples
cd /tmp/cuda-samples
make
[...][I spare you the details] [...]
make[1]: Leaving directory '/tmp/cuda_samples/NVIDIA_CUDA-10.1_Samples/7_CUDALibraries/cuSolverDn_LinearSolver'
Finished building CUDA samples

As well as the OPTIX-examples:

cd ~/nvidia/NVIDIA-OptiX-SDK-6.5.0-linux64/SDK
~/nvidia/NVIDIA-OptiX-SDK-6.5.0-linux64/SDK$ mkdir build
~/nvidia/NVIDIA-OptiX-SDK-6.5.0-linux64/SDK$ cd build
~/nvidia/NVIDIA-OptiX-SDK-6.5.0-linux64/SDK/build$ ccmake ..
~/nvidia/NVIDIA-OptiX-SDK-6.5.0-linux64/SDK/build$ make -j16
[...][I spare you the details] [...]
[ 97%] Linking CXX executable ../bin/primeMultiBuffering
[ 98%] Linking CXX executable ../bin/primeSimplePP
[100%] Linking CXX executable ../bin/primeMultiGpu
[100%] Built target primeMultiBuffering
[100%] Built target primeSimplePP
[100%] Built target primeMultiGpu

The nvidia-environment seems to be sane. I also checked out a mitsuba-revision which for sure worked before. It failed with the same error.

So I figured has to be my machine. I downgraded cmake from 3.17 to 3.16.5 and now everything is running again. So in the future, when more people are moving to cmake 3.17 a closer look at

ext/enoki/CMakeLists.txt:20 (enable_language)

and

/usr/share/cmake-3.17/Modules/CMakeTestCUDACompiler.cmake:46

might be necessary.

Meanwhile -- thank you for your fast response!

[Speierers]

Are you able to compile/run the Optix examples provided in the Optix SDK? As well as the CUDA examples?