tambre added a comment. In D75811#1923278 <https://reviews.llvm.org/D75811#1923278>, @csigg wrote:
> > I'll be adding a `CUDA_ROOT` option to CMake that will be passed to clang > > as `--cuda-path`. > > I'm not familiar with CMake and whether that option is picked up from an > environment variable, but on Windows that environment variable that the CUDA > installer sets is `CUDA_PATH`: > > https://docs.nvidia.com/cuda/cuda-installation-guide-microsoft-windows/index.html#build-customizations-for-existing-projects CMake's FindCUDAToolkit <https://cmake.org/cmake/help/latest/module/FindCUDAToolkit.html> module indeed already uses `CUDA_PATH` on Windows. > On Linux you are expected to add the <cuda root>/bin directory to the `PATH` > environment variable. The CMake way is to usually provide an environment variable alongside a CMake variable (e.g. `CUDACXX` and `CMAKE_CUDA_COMPILER`). The environment variable will be respected above, then the CMake variable if set (e.g. in a toolchain file) and finally CMake tries common paths, executable names, etc to find what it needs. In D75811#1923280 <https://reviews.llvm.org/D75811#1923280>, @csigg wrote: > > I've gone with the approach of trying the architectures in the most recent > > non-deprecated order – sm_52, sm_30. > > I'm curious why you added sm_52 (I'm currently writing bazel rules for better > CUDA support, and I'm using just sm_30 because that's been nvcc's default for > a while now). > Do you consider sm_52 GPUs to be particularly common or does sm_52 introduce > a commonly used feature? > (fp16 requires sm_53, but I don't think that needs to be included in the out > of the box experience) I added sm_52 as the first one to try because support for sm_35, sm_37 and sm_50 is deprecated in CUDA 10.2. CUDA 11 will probably remove them, so this ensures we're compatible with it ahead of time. Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D75811/new/ https://reviews.llvm.org/D75811 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
