if you are using the new first class cuda language, as seen by `project(MyTest LANGUAGES CXX CUDA)` you shouldn't use the old find cuda package or the associated cuda_add_library calls. When using the first class cuda language simply use add_library.
The other difference I notice is that you makefile example is not building shared libraries but object files, so to the same in CMake you need to use 'add_library' with the OBJECT keyword not the SHARED keyword. On Fri, Jul 6, 2018 at 12:01 AM Quang Ha <quang.t.ha...@gmail.com> wrote: > Hi all, > > Following upon how to perform code linking between CUDA and C++ (here at > https://devblogs.nvidia.com/separate-compilation-linking-cuda-device-code/), > I have successfully come up with a Makefile that is currently working for > my test case: > > ##################################Makefile############### > ################################## > main_objects = main.o > host_objects = host.o > device_objects = device.o > > all: $(main_objects) $(host_objects) $(device_objects) > g++ -O3 -fopenmp $(main_objects) $(host_objects) $(device_objects) > -L/usr/local/cuda/lib64 -lcudart -o main > > $(main_objects): $(main_objects:.o=.cpp) > g++ -O3 -I/usr/local/cuda/include -c $< -o $@ > > $(host_objects): $(host_objects:.o=.cpp) > g++ -O3 -DTHRUST_HOST_SYSTEM=THRUST_HOST_SYSTEM_OMP -fopenmp -c $< > -o $@ > > $(device_objects): $(device_objects:.o=.cu) > nvcc -O3 -DTHRUST_DEVICE_SYSTEM=THRUST_DEVICE_SYSTEM_CUDA -c $< -o > $@ > > clean: > rm -f *.o main > #################################################################### > ################################## > > Now, I am trying to write a CMake for this, my current attempt is as > followed: > > > ##############################################CMakeLists.txt############################################ > cmake_minimum_required(VERSION 3.8) > project(MyTest LANGUAGES CXX CUDA) > > # check requirements > find_package(CUDA REQUIRED) > find_package(OpenMP) > > if (CUDA_FOUND AND OPENMP_FOUND) > # OpenMP > set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}") > set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}") > set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} > ${OpenMP_EXE_LINKER_FLAGS}") > > # CUDA > include_directories(${CUDA_INCLUDE_DIRS}) > set(ALL_CUDA_LIBS ${CUDA_LIBRARIES} ${CUDA_cusparse_LIBRARY} > ${CUDA_cublas_LIBRARY}) > set(LIBS ${LIBS} ${ALL_CUDA_LIBS}) > set(CUDA_SEPARABLE_COMPILATION OFF) > set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS};--maxrregcount 32) > > set(OMP_SOURCES host.cpp) > add_library(Host_OMP SHARED ${OMP_SOURCES}) > set_target_properties(Host_OMP PROPERTIES COMPILE_FLAGS > "-DTHRUST_HOST_SYSTEM=THRUST_HOST_SYSTEM_OMP") > set(LIBS ${LIBS} ${Host_OMP}) > > set(CUDA_SOURCES device.cu) > cuda_add_library(Device_CUDA SHARED ${CUDA_SOURCES}) > set_target_properties(Device_CUDA PROPERTIES COMPILE_FLAGS > "-DTHRUST_DEVICE_SYSTEM=THRUST_DEVICE_SYSTEM_CUDA") > set_target_properties(Device_CUDA PROPERTIES > CUDA_SEPERABLE_COMPILATION ON) > set(LIBS ${LIBS} ${Device_CUDA}) > > add_executable(main main.cpp) > target_link_libraries(main ${LIBS}) > > endif(CUDA_FOUND AND OPENMP_FOUND) > #################################################################### > ################################## > > It is still, unfortunately, not working. If I commented out the > add_executable line, the object code for Host_OMP and Device_CUDA is > compiled. I can then use the terminal and link them with main.cpp using gcc > and generate the executable - i.e. using the final command in the Makefile > above. > > What am I doing wrong here? It seems to be very fundamental, but I can't > seem to get it right... > > Any suggestions would be greatly appreciated!! > > Thanks, > Quang > -- > > 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
