CMake Warning \(policy\) in CMakeLists\.txt:
  Policy CMP0104 is not set: CMAKE_CUDA_ARCHITECTURES now detected for NVCC,
  empty CUDA_ARCHITECTURES not allowed\.  Run "cmake --help-policy CMP0104"
  for policy details\.  Use the cmake_policy command to set the policy and
  suppress this warning\.

  CUDA_ARCHITECTURES is empty for target "cuda"\.
This warning is for project developers\.  Use -Wno-author or -Wno-policy to
suppress it\.
