Compiling C++ code with CUDA compiler practically means only to implicitly include a bunch of CUDA-specific headers like cuda_runtime_api.h. Other than that, it's the same as compiling with the host C++ compiler. Thus, you can get the desired behavior by explicitly including those headers in case of C++-compilation and letting CMake include_directories to know where to search for them.
Kind regards, - Dmitry. вт, 2 июл. 2019 г. в 20:19, Kai Germaschewski <kai.germaschew...@gmail.com>: > For background, a bunch of projects help writing portable C++ code that > can be compiled into CUDA device code as one option, e.g. hemi, kokkos, > RAJA (https://devblogs.nvidia.com/simple-portable-parallel-c-hemi-2/). As > a consequence, if available those source files need to be compiled with the > CUDA compiler, but with the regular C++ compiler otherwise. > > I'm wondering whether there is a clean way to support this in a cmake > build. Renaming my source files to `.cu` is bad if I'm on the system > without CUDA. I figured out that I can set the LANGUAGE property on a given > .cpp/.cxx source file to CUDA to have it compiled with CMAKE_CUDA_COMPILER, > but that's quite a hassle to do for every source file. Kokkos instead > creates a `nvcc_wrapper` script which one is supposed to use as > CMAKE_CXX_COMPILER, but that definitely seems like a kludge to me (and > giving me troubles). > > Things would probably be much better for me if there was a way to change > the default language for .cxx / .cpp extensions. Is there a way to do this? > > --Kai > > > > -- > > Powered by www.kitware.com > > Please keep messages on-topic and check the CMake FAQ at: > http://www.cmake.org/Wiki/CMake_FAQ > > Kitware offers various services to support the CMake community. For more > information on each offering, please visit: > > CMake Support: http://cmake.org/cmake/help/support.html > CMake Consulting: http://cmake.org/cmake/help/consulting.html > CMake Training Courses: http://cmake.org/cmake/help/training.html > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Follow this link to subscribe/unsubscribe: > https://cmake.org/mailman/listinfo/cmake >
-- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: https://cmake.org/mailman/listinfo/cmake