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| -rw-r--r-- | llvm/docs/CompileCudaWithLLVM.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/docs/CompileCudaWithLLVM.rst b/llvm/docs/CompileCudaWithLLVM.rst index f57839cec96..85aab5dda0f 100644 --- a/llvm/docs/CompileCudaWithLLVM.rst +++ b/llvm/docs/CompileCudaWithLLVM.rst @@ -119,6 +119,13 @@ your GPU <https://developer.nvidia.com/cuda-gpus>`_. For example, if you want to run your program on a GPU with compute capability of 3.5, you should specify ``--cuda-gpu-arch=sm_35``. +Note: You cannot pass ``compute_XX`` as an argument to ``--cuda-gpu-arch``; +only ``sm_XX`` is currently supported. However, clang always includes PTX in +its binaries, so e.g. a binary compiled with ``--cuda-gpu-arch=sm_30`` would be +forwards-compatible with e.g. ``sm_35`` GPUs. + +You can pass ``--cuda-gpu-arch`` multiple times to compile for multiple archs. + Detecting clang vs NVCC ======================= |
