[cmake+cuda] improve friendliness of architecture selection

CMakeLists.txt

@@ -38,20 +38,22 @@ set(ENABLE_CUDA "FALSE" CACHE BOOL "Enable CUDA support")
 set(ENABLE_CUDNN "FALSE" CACHE BOOL "Enable CUDNN")
 set(ENABLE_CUDNN_HALF "FALSE" CACHE BOOL "Enable CUDNN Half precision")
 
-if(${CMAKE_VERSION} VERSION_LESS "3.8.0")
+if(${CMAKE_VERSION} VERSION_LESS "3.9.0")
   set(ENABLE_CUDA "FALSE" CACHE BOOL "Enable CUDA support" FORCE)
-  message(WARNING "To build with CUDA support you need CMake 3.8.0+")
+  message(WARNING "To build with CUDA support you need CMake 3.9.0+")
 else()
   include(CheckLanguage)
   check_language(CUDA)
   if(CMAKE_CUDA_COMPILER)
+    set(CUDA_ARCHITECTURES "Auto" CACHE STRING "\"Auto\" detects local machine GPU compute arch at runtime, \"Common\" and \"All\" cover common and entire subsets of architectures, \"Names\" is a list of architectures to enable by name, \"Numbers\" is a list of compute capabilities (version number) to enable")
+    set_property(CACHE CUDA_ARCHITECTURES PROPERTY STRINGS "Auto" "Common" "All" "Kepler Maxwell Kepler+Tegra Maxwell+Tegra Pascal" "3.0 7.5")
     enable_language(CUDA)
     find_package(CUDA REQUIRED)
     if(CUDA_VERSION VERSION_LESS "9.0")
       message(STATUS "Unsupported CUDA version, please upgrade to CUDA 9+. Disabling CUDA support")
     else()
       set(ENABLE_CUDA "TRUE" CACHE BOOL "Enable CUDA support" FORCE)
-      cuda_select_nvcc_arch_flags(CUDA_ARCH_FLAGS "Auto")
+      cuda_select_nvcc_arch_flags(CUDA_ARCH_FLAGS ${CUDA_ARCHITECTURES})
       message(STATUS "Building with CUDA flags: " "${CUDA_ARCH_FLAGS}")
       if ("arch=compute_75,code=sm_75" IN_LIST CUDA_ARCH_FLAGS)
         set(ENABLE_CUDNN_HALF "TRUE" CACHE BOOL "Enable CUDNN Half precision" FORCE)