Link error while building amgx_tests_launcher

[KagamineLenOffical]

Hi, I'm using VS2019 and cuda 11.3 to build this project. My VS version is 14.29.30133, cmake version 3.26.3 and cuda version 11.3.0.

OpenMP could not be found so I set it manually on CMakeLists.txt.

set(OpenMP_CXX_FLAGS "-openmp")
set(OpenMP_C_LIB_NAMES "libomp")
set(OpenMP_C_FLAGS "-openmp")
set(OpenMP_CXX_LIB_NAMES "libomp")
set(OpenMP_libomp_LIBRARY "C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.29.30133/lib/x64/libomp.lib")

And solve the complile error with new version VS and cuda by add this row in src\CmakeLists.txt.

set(CMAKE_CUDA_STANDARD 11)

Then I built the whole project under VS. Link error happened while build amgx_tests_launcher

utest.obj : error LNK2019: 无法解析的外部符号 "public: static void __cdecl amgx::SignalHandler::hook(void)" (?hook@SignalHandler@amgx@@SAXXZ)，函数 main 中引用了该符号 [D:\linear_solver\AMGX\cmake-build-release-visual-studio\src\amgx_tests_launcher.vcxproj]
utest.obj : error LNK2019: 无法解析的外部符号 "public: static class amgx::Cusparse & __cdecl amgx::Cusparse::get_instance(void)" (?get_instance@Cusparse@amgx@@SAAEAV12@XZ)，函数 main 中引用了该符号 [D:\linear_solver\AMGX\cmake-build-release-visual-studio\src\amgx_tests_launcher.vcxproj]
utest.obj : error LNK2019: 无法解析的外部符号 "void (__cdecl* amgx::amgx_output)(char const *,int)" (?amgx_output@amgx@@3P6AXPEBDH@ZEA)，函数 main 中引用了该符号 [D:\linear_solver\AMGX\cmake-build-release-visual-studio\src\amgx_tests_launcher.vcxproj]
utest.obj : error LNK2019: 无法解析的外部符号 "private: static struct cublasContext * amgx::Cublas::m_handle" (?m_handle@Cublas@amgx@@0PEAUcublasContext@@EA)，函数 "public: static void __cdecl amgx::Cublas::destroy_handle(void)" (?destroy_handle@Cublas@amgx@@SAXXZ) 中引用了该符号 [D:\linear_solver\AMGX\cmake-build-release-visual-studio\src\amgx_tests_launcher.vcxproj]
testframework.obj : error LNK2019: 无法解析的外部符号 "enum amgx::AMGX_ERROR __cdecl amgx::initialize(void)" (?initialize@amgx@@YA?AW4AMGX_ERROR@1@XZ)，函数 "public: int __cdecl amgx::UnitTestDriver::run_tests(class std::vector<struct std::pair<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > >,class std::allocator<struct std::pair<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > > > > const &,class std::basic_ostream<char,struct std::char_traits<char> > &)" (?run_tests@UnitTestDriver@amgx@@QEAAHAEBV?$vector@U?$pair@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@V12@@std@@V?$allocator@U?$pair@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@V12@@std@@@2@@std@@AEAV?$basic_ostream@DU?$char_traits@D@std@@@4@@Z) 中引用了该符号 [D:\linear_solver\AMGX\cmake-build-release-visual-studio\src\amgx_tests_launcher.vcxproj]
testframework.obj : error LNK2019: 无法解析的外部符号 "void __cdecl amgx::finalize(void)" (?finalize@amgx@@YAXXZ)，函数 "public: int __cdecl amgx::UnitTestDriver::run_tests(class std::vector<struct std::pair<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > >,class std::allocator<struct std::pair<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > > > > const &,class std::basic_ostream<char,struct std::char_traits<char> > &)" (?run_tests@UnitTestDriver@amgx@@QEAAHAEBV?$vector@U?$pair@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@V12@@std@@V?$allocator@U?$pair@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@V12@@std@@@2@@std@@AEAV?$basic_ostream@DU?$char_traits@D@std@@@4@@Z) 中引用了该符号 [D:\linear_solver\AMGX\cmake-build-release-visual-studio\src\amgx_tests_launcher.vcxproj]

It seems that the config in Properties->Linker->Input->Additional dependencies is not correct and produce this error. I need to manually set up the Additional dependencies for amgx.lib and amgxsh.lib. Don't know if there is a update needed for cmake file ? I'm not very familiar with cmake file.

[wanjunling168]

just add amgx here(L112) in src/CMakeLists.txt:

target_link_libraries(amgx_tests_launcher amgx amgxsh ${libs_all} OpenMP::OpenMP_C)

and everything is OK (at least for my no-MPI build)

[NBickford-NV]

Hi @KagamineLenOffical! I think I've integrated a version of @wanjunling168's fix in https://github.com/NVIDIA/AMGX/pull/279/commits/14705019265c5dae16e957709b9be19c79c1574d -- could you pull the latest version and see if it works? Thanks!