| |
| cmake_minimum_required(VERSION 3.7) |
| project (SeparateCompilation CUDA) |
| |
| #Goal for this example: |
| #Build a static library that defines multiple methods and kernels that |
| #use each other. |
| #After that confirm that we can call those methods from dynamic libraries |
| #and executables. |
| #We complicate the matter by also testing that multiple static libraries |
| #all containing cuda separable compilation code links properly |
| string(APPEND CMAKE_CUDA_FLAGS " -gencode arch=compute_30,code=\\\"compute_30,sm_30,sm_35\\\"") |
| string(APPEND CMAKE_CUDA_FLAGS " --generate-code=arch=compute_50,code=[compute_50,sm_50,sm_52]") |
| |
| set(CMAKE_CUDA_SEPARABLE_COMPILATION ON) |
| add_library(CUDASeparateLibA STATIC file1.cu file2.cu file3.cu) |
| target_compile_features(CUDASeparateLibA PRIVATE cuda_std_11) |
| get_property(sep_comp TARGET CUDASeparateLibA PROPERTY CUDA_SEPARABLE_COMPILATION) |
| if(NOT sep_comp) |
| message(FATAL_ERROR "CUDA_SEPARABLE_COMPILATION not initialized") |
| endif() |
| unset(CMAKE_CUDA_SEPARABLE_COMPILATION) |
| |
| if(CMAKE_CUDA_SIMULATE_ID STREQUAL "MSVC") |
| # Test adding a flag that is not in our CUDA flag table for VS. |
| if(NOT CMAKE_CUDA_COMPILER_VERSION VERSION_LESS 8) |
| string(APPEND CMAKE_CUDA_FLAGS " --ftemplate-depth 50") |
| endif() |
| # Test adding a flag that nvcc should pass to the host compiler. |
| target_compile_options(CUDASeparateLibA PRIVATE -Xcompiler=-bigobj) |
| endif() |
| |
| #Having file4/file5 in a shared library causes serious problems |
| #with the nvcc linker and it will generate bad entries that will |
| #cause a segv when trying to run the executable |
| # |
| add_library(CUDASeparateLibB STATIC file4.cu file5.cu) |
| target_compile_features(CUDASeparateLibB PRIVATE cuda_std_11) |
| target_link_libraries(CUDASeparateLibB PRIVATE CUDASeparateLibA) |
| |
| add_executable(CudaOnlySeparateCompilation main.cu) |
| target_link_libraries(CudaOnlySeparateCompilation |
| PRIVATE CUDASeparateLibB) |
| set_target_properties(CudaOnlySeparateCompilation PROPERTIES CUDA_STANDARD 11) |
| set_target_properties(CudaOnlySeparateCompilation PROPERTIES CUDA_STANDARD_REQUIRED TRUE) |
| |
| set_target_properties(CUDASeparateLibA |
| CUDASeparateLibB |
| PROPERTIES CUDA_SEPARABLE_COMPILATION ON |
| POSITION_INDEPENDENT_CODE ON) |
| |
| if (CMAKE_GENERATOR MATCHES "^Visual Studio") |
| #Visual Studio CUDA integration will not perform device linking |
| #on a target that itself does not have GenerateRelocatableDeviceCode |
| #enabled. |
| set_target_properties(CudaOnlySeparateCompilation |
| PROPERTIES CUDA_SEPARABLE_COMPILATION ON) |
| endif() |
| |
| if(APPLE) |
| # Help the static cuda runtime find the driver (libcuda.dyllib) at runtime. |
| set_property(TARGET CudaOnlySeparateCompilation PROPERTY BUILD_RPATH ${CMAKE_CUDA_IMPLICIT_LINK_DIRECTORIES}) |
| endif() |
