find_package(CUDA 9.2)
if(${CUDA_FOUND})
    include_directories(SYSTEM ${CUDA_INCLUDE_DIRS})

    list(APPEND CUDA_NVCC_FLAGS "-std=c++11")
    # set(CUDA_VERBOSE_BUILD ON)  # uncomment to debug

    # reduce scope of arch to suppress warning regarding to sm_20
    list(APPEND CUDA_NVCC_FLAGS "-gencode arch=compute_61,code=sm_61") # GTX 1080
    list(APPEND CUDA_NVCC_FLAGS "-gencode arch=compute_52,code=sm_52") # GTX 970
    list(APPEND CUDA_NVCC_FLAGS "-gencode arch=compute_50,code=sm_50") # GTX 960

    mark_as_advanced(CUDA_HOST_COMPILER
                     CUDA_SDK_ROOT_DIR
                     CUDA_TOOLKIT_ROOT_DIR
                     CUDA_USE_STATIC_CUDA_RUNTIME
                     CUDA_rt_LIBRARY
                     NVML_LIB)
endif()