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#1 2021-05-25 16:52:44

GreenSokrates
Member
Registered: 2021-05-25
Posts: 9

C++ Qt5 & CUDA Issue when compiling project

I am trying to compile one of my personal projects. The project relies on CUDA and Qt5.

Since the newest pkg upgrade of qt5-base to 5.15.2+kde+r195-1, I get the following errors during the linking stage of my build:

/usr/sbin/ld: /usr/lib/libQt5Core.so.5.15.2: undefined reference to `std::__exception_ptr::exception_ptr::_M_release()@CXXABI_1.3.13'
/usr/sbin/ld: /usr/lib/libQt5Widgets.so.5.15.2: undefined reference to `std::__throw_bad_array_new_length()@GLIBCXX_3.4.29'
/usr/sbin/ld: /usr/lib/libQt5Core.so.5.15.2: undefined reference to `std::__exception_ptr::exception_ptr::_M_addref()@CXXABI_1.3.13'

This issue seems pretty similar to ( C++ ABI issue when trying to compile my project on Arch ).
So I tried to change my CMAKE_CUDA_HOST_COMPILER to an older GCC version. Which did not work for GCC versions 10 & 8.

Obviously downgrading the qt5-base package to the previous 5.15.2+kde+r192-1 works for the moment. But a solution (or hint in the right direction) would be nice!

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#2 2021-05-25 17:21:06

Scimmia
Fellow
Registered: 2012-09-01
Posts: 12,085

Re: C++ Qt5 & CUDA Issue when compiling project

The solution is updating the entire system. Specifically, gcc-libs is out of date.

This is why partial updates are not supported.

Last edited by Scimmia (2021-05-25 17:21:36)

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#3 2021-05-25 18:16:53

GreenSokrates
Member
Registered: 2021-05-25
Posts: 9

Re: C++ Qt5 & CUDA Issue when compiling project

Scimmia wrote:

The solution is updating the entire system. Specifically, gcc-libs is out of date.

My system is up to date. Just to be sure I just reinstalled gcc & gcc-libs.
Still the same error

Last edited by GreenSokrates (2021-05-25 18:19:36)

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#4 2021-05-25 18:57:52

loqs
Member
Registered: 2014-03-06
Posts: 18,045

Re: C++ Qt5 & CUDA Issue when compiling project

Is there some sample code you can provide so others can recreate the issue?
If not please provide the full cmake output.

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#5 2021-05-25 22:29:48

Scimmia
Fellow
Registered: 2012-09-01
Posts: 12,085

Re: C++ Qt5 & CUDA Issue when compiling project

What version of gcc-libs is installed? 11.1.0 provides libstdc++.so.6.0.29 that defines those versions.

Last edited by Scimmia (2021-05-26 00:11:59)

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#6 2021-05-26 06:29:29

GreenSokrates
Member
Registered: 2021-05-25
Posts: 9

Re: C++ Qt5 & CUDA Issue when compiling project

Scimmia wrote:

What version of gcc-libs is installed? 11.1.0 provides libstdc++.so.6.0.29 that defines those versions.

I have installed gcc-libs 11.1.0-1. See:

pacman -Qi gcc-libs
Name            : gcc-libs
Version         : 11.1.0-1
Description     : Runtime libraries shipped by GCC
Architecture    : x86_64
URL             : https://gcc.gnu.org
Licenses        : GPL  LGPL  FDL  custom
Groups          : None
Provides        : gcc-libs-multilib  libgo.so=19-64
                  libgfortran.so=5-64  libgphobos.so=2-64
                  libubsan.so=1-64  libasan.so=6-64  libtsan.so=0-64
                  liblsan.so=0-64
Depends On      : glibc>=2.27
Optional Deps   : None
Required By     : aom  base  blas  brltty  brotli  chromaprint
                  compiler-rt  db  double-conversion  doxygen  elfutils
                  exempi  exiv2  fftw  flac  gc  gcc  gdb  gettext
                  glslang  gmp  gnutls  gptfdisk  graphite  groff  icu
                  imath  jack  js78  jsoncpp  libao  libbs2b  libcdio
                  libde265  libebml  libelf  libgme  libimagequant
                  libinih  libmfx  libmodplug  libplacebo  libproxy
                  libpst  libsigc++  libsoxr  libvpx  libwpe  libyuv
                  llvm-libs  luajit  mjpegtools  ncurses
                  ncurses5-compat-libs  ninja  openal  pcre  pcre2
                  poppler  portaudio  powertop  protobuf  rav1e  re2
                  ripgrep  rust  sane  shaderc  smartmontools  snappy
                  soundtouch  spirv-tools  tbb  thin-provisioning-tools
                  uchardet  unrar  v4l-utils  vid.stab
                  visual-studio-code-bin  vmaf  webrtc-audio-processing
                  x265  yaml-cpp  zeromq  zimg  zita-alsa-pcmi
                  zita-resampler  zstd  zxing-cpp
Optional For    : None
Conflicts With  : None
Replaces        : gcc-libs-multilib  libgphobos
Installed Size  : 122.34 MiB
Packager        : Giancarlo Razzolini <grazzolini@archlinux.org>
Build Date      : Thu 13 May 2021 04:02:30 PM CEST
Install Date    : Tue 25 May 2021 04:35:08 PM CEST
Install Reason  : Installed as a dependency for another package
Install Script  : No
Validated By    : Signature

I think the gcc-libs provides the correct versions. See:

strings /usr/lib/libstdc++.so.6.0.29 | grep GLIBCXX
GLIBCXX_3.4
GLIBCXX_3.4.1
GLIBCXX_3.4.2
GLIBCXX_3.4.3
GLIBCXX_3.4.4
GLIBCXX_3.4.5
GLIBCXX_3.4.6
GLIBCXX_3.4.7
GLIBCXX_3.4.8
GLIBCXX_3.4.9
GLIBCXX_3.4.10
GLIBCXX_3.4.11
GLIBCXX_3.4.12
GLIBCXX_3.4.13
GLIBCXX_3.4.14
GLIBCXX_3.4.15
GLIBCXX_3.4.16
GLIBCXX_3.4.17
GLIBCXX_3.4.18
GLIBCXX_3.4.19
GLIBCXX_3.4.20
GLIBCXX_3.4.21
GLIBCXX_3.4.22
GLIBCXX_3.4.23
GLIBCXX_3.4.24
GLIBCXX_3.4.25
GLIBCXX_3.4.26
GLIBCXX_3.4.27
GLIBCXX_3.4.28
GLIBCXX_3.4.29
...

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#7 2021-05-26 06:34:43

GreenSokrates
Member
Registered: 2021-05-25
Posts: 9

Re: C++ Qt5 & CUDA Issue when compiling project

loqs wrote:

Is there some sample code you can provide so others can recreate the issue?
If not please provide the full cmake output.

Sadly I can't provide sample code as the project goes under a NDA.
Heres the cmake output, I have generated it from a new directory to make sure the cache is empty

-- The CUDA compiler identification is NVIDIA 11.3.58
-- The CXX compiler identification is GNU 10.2.0
-- Detecting CUDA compiler ABI info
-- Detecting CUDA compiler ABI info - done
-- Check for working CUDA compiler: /opt/cuda/bin/nvcc - skipped
-- Detecting CUDA compile features
-- Detecting CUDA compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /opt/cuda/bin/g++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Warning (dev) at /usr/share/cmake-3.20/Modules/FindOpenGL.cmake:315 (message):
  Policy CMP0072 is not set: FindOpenGL prefers GLVND by default when
  available.  Run "cmake --help-policy CMP0072" for policy details.  Use the
  cmake_policy command to set the policy and suppress this warning.

  FindOpenGL found both a legacy GL library:

    OPENGL_gl_LIBRARY: /usr/lib/libGL.so

  and GLVND libraries for OpenGL and GLX:

    OPENGL_opengl_LIBRARY: /usr/lib/libOpenGL.so
    OPENGL_glx_LIBRARY: /usr/lib/libGLX.so

  OpenGL_GL_PREFERENCE has not been set to "GLVND" or "LEGACY", so for
  compatibility with CMake 3.10 and below the legacy GL library will be used.
Call Stack (most recent call first):
  CMakeLists.txt:36 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Found OpenGL: /usr/lib/libOpenGL.so
-- The C compiler identification is GNU 10.2.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /opt/cuda/bin/gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
CMake Warning (dev) at lib/assimp-5.0.1/CMakeLists.txt:79 (OPTION):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'ASSIMP_NO_EXPORT'.
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at lib/assimp-5.0.1/CMakeLists.txt:83 (OPTION):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'ASSIMP_BUILD_ZLIB'.
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Shared libraries enabled
-- Looking for ZLIB...
-- Found PkgConfig: /usr/bin/pkg-config (found version "1.7.3")
-- Checking for module 'zzip-zlib-config'
--   Package 'zzip-zlib-config', required by 'virtual:world', not found
-- Found ZLIB: optimized;/usr/lib/libz.so;debug;/usr/lib/libz.so
-- Checking for module 'minizip'
--   Found minizip, version 1.2.11
CMake Warning (dev) at lib/assimp-5.0.1/code/CMakeLists.txt:230 (OPTION):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'ASSIMP_BUILD_ALL_IMPORTERS_BY_DEFAULT'.
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at lib/assimp-5.0.1/code/CMakeLists.txt:258 (OPTION):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'ASSIMP_BUILD_ALL_EXPORTERS_BY_DEFAULT'.
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/share/cmake-3.20/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (rt) does
  not match the name of the calling package (RT).  This can lead to problems
  in calling code that expects `find_package` result variables (e.g.,
  `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  lib/assimp-5.0.1/cmake-modules/FindRT.cmake:19 (find_package_handle_standard_args)
  lib/assimp-5.0.1/code/CMakeLists.txt:1013 (FIND_PACKAGE)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Found rt: /usr/lib/librt.so
-- Enabled importer formats: AMF 3DS AC ASE ASSBIN B3D BVH COLLADA DXF CSM HMP IRRMESH IRR LWO LWS MD2 MD3 MD5 MDC MDL NFF NDO OFF OBJ OGRE OPENGEX PLY MS3D COB BLEND IFC XGL FBX Q3D Q3BSP RAW SIB SMD STL TERRAGEN 3D X X3D GLTF 3MF MMD STEP
-- Disabled importer formats:
-- Enabled exporter formats: 3DS ASSBIN ASSXML COLLADA OBJ OPENGEX PLY FBX STL X X3D GLTF 3MF ASSJSON STEP
-- Disabled exporter formats:
CMake Deprecation Warning at lib/assimp-5.0.1/tools/assimp_cmd/CMakeLists.txt:40 (cmake_minimum_required):
  Compatibility with CMake < 2.8.12 will be removed from a future version of
  CMake.

  Update the VERSION argument <min> value or use a ...<max> suffix to tell
  CMake that the project does not need compatibility with older versions.


-- Configuring done
-- Generating done
-- Build files have been written to: /home/luism/projects/build

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#8 2021-05-26 06:42:35

loqs
Member
Registered: 2014-03-06
Posts: 18,045

Re: C++ Qt5 & CUDA Issue when compiling project

...
-- The CXX compiler identification is GNU 10.2.0
...
-- Check for working CXX compiler: /opt/cuda/bin/g++ - skipped

CMake has detected the wrong compiler.

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#9 2021-05-26 07:07:46

GreenSokrates
Member
Registered: 2021-05-25
Posts: 9

Re: C++ Qt5 & CUDA Issue when compiling project

loqs wrote:
...
-- The CXX compiler identification is GNU 10.2.0
...
-- Check for working CXX compiler: /opt/cuda/bin/g++ - skipped

CMake has detected the wrong compiler.

Correct me if I'm wrong, but I think cuda relies on GCC 10 as a host compiler. See  Archlinux bug tracker gcc:11 unsuitable as host compiler.

So this should be correct right? Or should cmake use GCC11?

EDIT:
Just to make sure i downgraded again to qt5-base-5.15.2+kde+r192-1, rerun cmake and I still get GNU 10.2 as CXX compiler:

-- The CUDA compiler identification is NVIDIA 11.3.58
-- The CXX compiler identification is GNU 10.2.0
-- Detecting CUDA compiler ABI info
-- Detecting CUDA compiler ABI info - done
-- Check for working CUDA compiler: /opt/cuda/bin/nvcc - skipped
-- Detecting CUDA compile features
-- Detecting CUDA compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /opt/cuda/bin/g++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Warning (dev) at /usr/share/cmake-3.20/Modules/FindOpenGL.cmake:315 (message):
  Policy CMP0072 is not set: FindOpenGL prefers GLVND by default when
  available.  Run "cmake --help-policy CMP0072" for policy details.  Use the
  cmake_policy command to set the policy and suppress this warning.

  FindOpenGL found both a legacy GL library:

    OPENGL_gl_LIBRARY: /usr/lib/libGL.so

  and GLVND libraries for OpenGL and GLX:

    OPENGL_opengl_LIBRARY: /usr/lib/libOpenGL.so
    OPENGL_glx_LIBRARY: /usr/lib/libGLX.so

  OpenGL_GL_PREFERENCE has not been set to "GLVND" or "LEGACY", so for
  compatibility with CMake 3.10 and below the legacy GL library will be used.
Call Stack (most recent call first):
  CMakeLists.txt:34 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Found OpenGL: /usr/lib/libOpenGL.so
-- The C compiler identification is GNU 10.2.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /opt/cuda/bin/gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
CMake Warning (dev) at lib/assimp-5.0.1/CMakeLists.txt:79 (OPTION):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'ASSIMP_NO_EXPORT'.
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at lib/assimp-5.0.1/CMakeLists.txt:83 (OPTION):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'ASSIMP_BUILD_ZLIB'.
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Shared libraries enabled
-- Looking for ZLIB...
-- Found PkgConfig: /usr/bin/pkg-config (found version "1.7.3")
-- Checking for module 'zzip-zlib-config'
--   Package 'zzip-zlib-config', required by 'virtual:world', not found
-- Found ZLIB: optimized;/usr/lib/libz.so;debug;/usr/lib/libz.so
-- Checking for module 'minizip'
--   Found minizip, version 1.2.11
CMake Warning (dev) at lib/assimp-5.0.1/code/CMakeLists.txt:230 (OPTION):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'ASSIMP_BUILD_ALL_IMPORTERS_BY_DEFAULT'.
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at lib/assimp-5.0.1/code/CMakeLists.txt:258 (OPTION):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'ASSIMP_BUILD_ALL_EXPORTERS_BY_DEFAULT'.
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/share/cmake-3.20/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (rt) does
  not match the name of the calling package (RT).  This can lead to problems
  in calling code that expects `find_package` result variables (e.g.,
  `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  lib/assimp-5.0.1/cmake-modules/FindRT.cmake:19 (find_package_handle_standard_args)
  lib/assimp-5.0.1/code/CMakeLists.txt:1013 (FIND_PACKAGE)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Found rt: /usr/lib/librt.so
-- Enabled importer formats: AMF 3DS AC ASE ASSBIN B3D BVH COLLADA DXF CSM HMP IRRMESH IRR LWO LWS MD2 MD3 MD5 MDC MDL NFF NDO OFF OBJ OGRE OPENGEX PLY MS3D COB BLEND IFC XGL FBX Q3D Q3BSP RAW SIB SMD STL TERRAGEN 3D X X3D GLTF 3MF MMD STEP
-- Disabled importer formats:
-- Enabled exporter formats: 3DS ASSBIN ASSXML COLLADA OBJ OPENGEX PLY FBX STL X X3D GLTF 3MF ASSJSON STEP
-- Disabled exporter formats:
CMake Deprecation Warning at lib/assimp-5.0.1/tools/assimp_cmd/CMakeLists.txt:40 (cmake_minimum_required):
  Compatibility with CMake < 2.8.12 will be removed from a future version of
  CMake.

  Update the VERSION argument <min> value or use a ...<max> suffix to tell
  CMake that the project does not need compatibility with older versions.


-- Configuring done
-- Generating done
-- Build files have been written to: /home/luism/projects/build

With this cfg the build links successfully!

Last edited by GreenSokrates (2021-05-26 07:23:22)

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#10 2021-05-26 09:32:02

loqs
Member
Registered: 2014-03-06
Posts: 18,045

Re: C++ Qt5 & CUDA Issue when compiling project

This is from building arrayfire with

  cmake . \
      -GNinja \
      -Bbuild \
      -DUSE_CPU_MKL=ON \
      -DGOOGLETEST_VERSION=1.9.0 \
      -DCMAKE_INSTALL_PREFIX=/usr \
      -DCMAKE_INSTALL_LIBDIR=/usr/lib \
      -DAF_WITH_IMAGEIO=ON \
      -DAF_BUILD_CPU=ON \
      -DAF_BUILD_OPENCL=ON \
      -DAF_WITH_NONFREE=ON \
      -DAF_BUILD_EXAMPLES=ON \
      -DAF_BUILD_DOCS=ON \
      -DCUDA_architecture_build_targets="5.2;5.3;6.0;6.1;6.2;7.0;7.2;7.5;8.0;8.6" \
      -DCMAKE_BUILD_TYPE=Release \
      -DCUDA_HOST_COMPILER=/usr/bin/gcc-10 \
      -DBoost_NO_BOOST_CMAKE=ON
-- The C compiler identification is GNU 11.1.0
-- The CXX compiler identification is GNU 11.1.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
fatal: not a git repository (or any of the parent directories): .git
-- No git. Setting hash to default
-- Looking for CL_VERSION_2_0
-- Looking for CL_VERSION_2_0 - found
-- Found OpenCL: /usr/lib/libOpenCL.so (found version "2.0") 
-- Downloading https://github.com/KhronosGroup/OpenCL-CLHPP/releases/download/v2.0.10/cl2.hpp
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE  
-- Found CUDA: /opt/cuda (found suitable version "11.3", minimum required is "9.0") 
-- Found PkgConfig: /usr/bin/pkg-config (found version "1.7.3") 
-- Found cuDNN: /usr/lib/libcudnn.so.8 (found suitable version "8.2", minimum required is "4.0") 
-- Found OpenCL: /usr/lib/libOpenCL.so (found suitable version "2.0", minimum required is "1.2") 
-- Found OpenGL: /usr/lib/libGL.so  
-- Found FreeImage: /usr/include  
-- Checking for module 'fftw3'
--   Found fftw3, version 3.3.9
-- Found FFTW: /usr/include  
-- Checking for module 'cblas'
--   Found cblas, version 3.9.1
-- Found CBLAS: /usr/lib/libcblas.so  
-- Found LAPACKE: /usr/lib/liblapacke.so  
CMake Warning (dev) at /usr/share/cmake-3.20/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (LAPACK)
  does not match the name of the calling package (LAPACKE).  This can lead to
  problems in calling code that expects `find_package` result variables
  (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  CMakeModules/FindLAPACKE.cmake:153 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
  CMakeLists.txt:45 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Found LAPACK: /usr/include  
-- Found Doxygen: /usr/bin/doxygen (found version "1.9.1") found components: doxygen dot 
CMake Warning (dev) at /usr/share/cmake-3.20/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (OpenMP_C)
  does not match the name of the calling package (OpenMP).  This can lead to
  problems in calling code that expects `find_package` result variables
  (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  CMakeModules/FindOpenMP.cmake:402 (find_package_handle_standard_args)
  CMakeModules/FindMKL.cmake:67 (find_package)
  CMakeLists.txt:47 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/share/cmake-3.20/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (OpenMP_CXX)
  does not match the name of the calling package (OpenMP).  This can lead to
  problems in calling code that expects `find_package` result variables
  (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  CMakeModules/FindOpenMP.cmake:402 (find_package_handle_standard_args)
  CMakeModules/FindMKL.cmake:67 (find_package)
  CMakeLists.txt:47 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Check size of int
-- Check size of int - done
-- MKL: Thread Layer(Intel OpenMP) Interface(4-byte Integer)
-- Found MKL_Shared: /opt/intel/mkl/include (found version "2020.0.4") 
-- Could NOT find MKL: Source the compilervars.sh or mklvars.sh scripts included with your installation of MKL. This script searches for the libraries in MKLROOT, LIBRARY_PATHS(Linux), and LIB(Windows) environment variables (missing: MKL_Core_STATIC_LINK_LIBRARY MKL_Interface_STATIC_LINK_LIBRARY MKL_ThreadLayer_STATIC_LINK_LIBRARY) (found version "2020.0.4")
-- Found Boost: /usr/include (found suitable version "1.76.0", minimum required is "1.66")  
Building with NONFREE requires the following patents
Method and apparatus for identifying scale invariant features
in an image and use of same for locating an object in an image, David
G. Lowe, US Patent 6,711,293 (March 23, 2004). Provisional application
filed March 8, 1999. Asignee: The University of British Columbia. For
further details, contact David Lowe (lowe@cs.ubc.ca) or the
University-Industry Liaison Office of the University of British
Columbia.
-- Performing Test has_ignored_attributes_flag
-- Performing Test has_ignored_attributes_flag - Success
-- Performing Test has_all_warnings_flag
-- Performing Test has_all_warnings_flag - Success
-- CUDA_architecture_build_targets: 5.2;5.3;6.0;6.1;6.2;7.0;7.2;7.5;8.0;8.6 ( 5.2 5.3 6.0 6.1 6.2 7.0 7.2 7.5 8.0 8.6  )
-- Performing Test group_flags
-- Performing Test group_flags - Success
-- Found OpenCL: /usr/lib/libOpenCL.so (found version "2.0") 
CMake Deprecation Warning at test/gtest/CMakeLists.txt:1 (cmake_minimum_required):
  Compatibility with CMake < 2.8.12 will be removed from a future version of
  CMake.

  Update the VERSION argument <min> value or use a ...<max> suffix to tell
  CMake that the project does not need compatibility with older versions.


CMake Deprecation Warning at test/gtest/googlemock/CMakeLists.txt:42 (cmake_minimum_required):
  Compatibility with CMake < 2.8.12 will be removed from a future version of
  CMake.

  Update the VERSION argument <min> value or use a ...<max> suffix to tell
  CMake that the project does not need compatibility with older versions.


CMake Deprecation Warning at test/gtest/googletest/CMakeLists.txt:49 (cmake_minimum_required):
  Compatibility with CMake < 2.8.12 will be removed from a future version of
  CMake.

  Update the VERSION argument <min> value or use a ...<max> suffix to tell
  CMake that the project does not need compatibility with older versions.


-- Found PythonInterp: /usr/bin/python (found version "3.9.5") 
-- Check if compiler accepts -pthread
-- Check if compiler accepts -pthread - yes
-- Performing Test pthread_flag
-- Performing Test pthread_flag - Success
fatal: not a git repository (or any of the parent directories): .git
-- No git. Setting hash to default
fatal: not a git repository (or any of the parent directories): .git
-- No git. Setting hash to default
-- Configuring done
-- Generating done
-- Build files have been written to: /build/arrayfire/src/arrayfire-full-3.8.0/build

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#11 2021-05-26 12:51:55

GreenSokrates
Member
Registered: 2021-05-25
Posts: 9

Re: C++ Qt5 & CUDA Issue when compiling project

Thank you loqs.

I looked into arrayfire's CMakeLists.txt. They are using the (since CMake 3.10 deprecated) method of FindCUDA. ( I'm using CMake 3.20.2 )

But I found if I switch around the order of the language call in the top level project() call from project(project LANGUAGES CUDA CXX) to project(project LANGUAGES CXX CUDA) I get GNU 11 as my CXX compiler.

But still, the same linker errors exist. But now with some more context around it:

/usr/bin/ld: CMakeFiles/cudaRTM.dir/src/CudaRTMSimulator.cpp.o: in function `__gnu_cxx::new_allocator<std::shared_ptr<Inlet> >::allocate(unsigned long, void const*)':
CudaRTMSimulator.cpp:(.text._ZN9__gnu_cxx13new_allocatorISt10shared_ptrI5InletEE8allocateEmPKv[_ZN9__gnu_cxx13new_allocatorISt10shared_ptrI5InletEE8allocateEmPKv]+0x45): undefined reference to `std::__throw_bad_array_new_length()'
/usr/bin/ld: CMakeFiles/cudaRTM.dir/src/CudaRTMSimulator.cpp.o: in function `__gnu_cxx::new_allocator<std::_Sp_counted_ptr_inplace<GlViewer, std::allocator<GlViewer>, (__gnu_cxx::_Lock_policy)2> >::allocate(unsigned long, void const*)':
CudaRTMSimulator.cpp:(.text._ZN9__gnu_cxx13new_allocatorISt23_Sp_counted_ptr_inplaceI8GlViewerSaIS2_ELNS_12_Lock_policyE2EEE8allocateEmPKv[_ZN9__gnu_cxx13new_allocatorISt23_Sp_counted_ptr_inplaceI8GlViewerSaIS2_ELNS_12_Lock_policyE2EEE8allocateEmPKv]+0x45): undefined reference to `std::__throw_bad_array_new_length()'
/usr/bin/ld: CMakeFiles/cudaRTM.dir/src/CudaRTMSimulator.cpp.o: in function `__gnu_cxx::new_allocator<std::_Sp_counted_ptr_inplace<ParticleSystem, std::allocator<ParticleSystem>, (__gnu_cxx::_Lock_policy)2> >::allocate(unsigned long, void const*)':
CudaRTMSimulator.cpp:(.text._ZN9__gnu_cxx13new_allocatorISt23_Sp_counted_ptr_inplaceI14ParticleSystemSaIS2_ELNS_12_Lock_policyE2EEE8allocateEmPKv[_ZN9__gnu_cxx13new_allocatorISt23_Sp_counted_ptr_inplaceI14ParticleSystemSaIS2_ELNS_12_Lock_policyE2EEE8allocateEmPKv]+0x45): undefined reference to `std::__throw_bad_array_new_length()'
/usr/bin/ld: CMakeFiles/cudaRTM.dir/src/CudaRTMSimulator.cpp.o: in function `__gnu_cxx::new_allocator<std::_Sp_counted_ptr_inplace<Model, std::allocator<Model>, (__gnu_cxx::_Lock_policy)2> >::allocate(unsigned long, void const*)':
CudaRTMSimulator.cpp:(.text._ZN9__gnu_cxx13new_allocatorISt23_Sp_counted_ptr_inplaceI5ModelSaIS2_ELNS_12_Lock_policyE2EEE8allocateEmPKv[_ZN9__gnu_cxx13new_allocatorISt23_Sp_counted_ptr_inplaceI5ModelSaIS2_ELNS_12_Lock_policyE2EEE8allocateEmPKv]+0x45): undefined reference to `std::__throw_bad_array_new_length()'
/usr/bin/ld: CMakeFiles/cudaRTM.dir/src/controlldock.cpp.o: in function `__gnu_cxx::new_allocator<std::_Sp_counted_ptr_inplace<CircularInlet, std::allocator<CircularInlet>, (__gnu_cxx::_Lock_policy)2> >::allocate(unsigned long, void const*)':
controlldock.cpp:(.text._ZN9__gnu_cxx13new_allocatorISt23_Sp_counted_ptr_inplaceI13CircularInletSaIS2_ELNS_12_Lock_policyE2EEE8allocateEmPKv[_ZN9__gnu_cxx13new_allocatorISt23_Sp_counted_ptr_inplaceI13CircularInletSaIS2_ELNS_12_Lock_policyE2EEE8allocateEmPKv]+0x45): undefined reference to `std::__throw_bad_array_new_length()'
/usr/bin/ld: CMakeFiles/cudaRTM.dir/src/controlldock.cpp.o:controlldock.cpp:(.text._ZN9__gnu_cxx13new_allocatorISt23_Sp_counted_ptr_inplaceI11SquareInletSaIS2_ELNS_12_Lock_policyE2EEE8allocateEmPKv[_ZN9__gnu_cxx13new_allocatorISt23_Sp_counted_ptr_inplaceI11SquareInletSaIS2_ELNS_12_Lock_policyE2EEE8allocateEmPKv]+0x45): more undefined references to `std::__throw_bad_array_new_length()' follow
/usr/bin/ld: /usr/lib/libQt5Core.so.5.15.2: undefined reference to `std::__exception_ptr::exception_ptr::_M_release()@CXXABI_1.3.13'
/usr/bin/ld: /usr/lib/libQt5Widgets.so.5.15.2: undefined reference to `std::__throw_bad_array_new_length()@GLIBCXX_3.4.29'
/usr/bin/ld: /usr/lib/libQt5Core.so.5.15.2: undefined reference to `std::__exception_ptr::exception_ptr::_M_addref()@CXXABI_1.3.13'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/cudaRTM.dir/build.make:406: cudaRTM] Error 1
make[1]: *** [CMakeFiles/Makefile2:223: CMakeFiles/cudaRTM.dir/all] Error 2
make: *** [Makefile:136: all] Error 2

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#12 2021-05-31 21:34:32

GreenSokrates
Member
Registered: 2021-05-25
Posts: 9

Re: C++ Qt5 & CUDA Issue when compiling project

So I'm still investigating this issue. I can provide you with a minimum working sample.
I'm really out of ideas...

main.cpp:

#include "mainwindow.h"
#include "testfile.cuh"

#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    doStuff();
    return a.exec();
}

testfile.cuh

#ifndef TESTFILE_CUH
#define TESTFILE_CUH

void doStuff();

#endif // TESTFILE_CUH

testfile.cu

#include "testfile.cuh"
#include "cuda_runtime.h"

#include <stdio.h>

__global__
void saxpy(int n, float a, float *x, float *y)
{
  int i = blockIdx.x*blockDim.x + threadIdx.x;
  if (i < n) y[i] = a*x[i] + y[i];
}

void doStuff()
{
    int N = 1<<20;
    float *x, *y, *d_x, *d_y;
    x = (float*)malloc(N*sizeof(float));
    y = (float*)malloc(N*sizeof(float));

    cudaMalloc(&d_x, N*sizeof(float));
    cudaMalloc(&d_y, N*sizeof(float));

    for (int i = 0; i < N; i++) {
      x[i] = 1.0f;
      y[i] = 2.0f;
    }

    cudaMemcpy(d_x, x, N*sizeof(float), cudaMemcpyHostToDevice);
    cudaMemcpy(d_y, y, N*sizeof(float), cudaMemcpyHostToDevice);

    // Perform SAXPY on 1M elements
    saxpy<<<(N+255)/256, 256>>>(N, 2.0f, d_x, d_y);

    cudaMemcpy(y, d_y, N*sizeof(float), cudaMemcpyDeviceToHost);

    float maxError = 0.0f;
    for (int i = 0; i < N; i++)
      maxError = std::max(maxError, abs(y[i]-4.0f));
    printf("Max error: %f\n", maxError);

    cudaFree(d_x);
    cudaFree(d_y);
    free(x);
    free(y);
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.10)

project(test VERSION 0.1 LANGUAGES CXX CUDA)

set(CMAKE_INCLUDE_CURRENT_DIR ON)

set(CMAKE_AUTOUIC ON)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# Define Cuda Cxx Standard
if(NOT DEFINED CMAKE_CUDA_STANDARD)
    set(CMAKE_CUDA_STANDARD 17)
    set(CMAKE_CUDA_STANDARD_REQUIRED ON)
endif()

find_package(QT NAMES Qt6 Qt5 COMPONENTS Widgets REQUIRED)
find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Widgets REQUIRED)

set(PROJECT_SOURCES
        main.cpp
        testfile.cu
        testfile.cuh
)

add_executable(test
    ${PROJECT_SOURCES}
)

## CUDA: Set architecture, separate compile for nvcc and include headers
set_target_properties(test PROPERTIES CUDA_SEPARABLE_COMPILATION ON)
set_property(TARGET test PROPERTY CUDA_ARCHITECTURES 52 53 60 61 75)
include_directories(${CMAKE_CUDA_TOOLKIT_INCLUDE_DIRECTORIES})
set(CUDA_NVCC_FLAGS "-Xcompiler /EHsc /O2 /Zi /MTd -g -G")
set(CUDA_VERBOSE_BUILD ON)

## Link Qt Stuff
target_link_libraries(test PRIVATE
    Qt5::Core
    )

## Link Cuda
target_link_libraries(test PUBLIC
    ${CUDA_LIBRARIES}
    )

target_link_libraries(test PRIVATE Qt${QT_VERSION_MAJOR}::Widgets)

This gives me the following compile errors:

/usr/bin/ld: /usr/lib/libQt5Core.so.5.15.2: undefined reference to `std::__exception_ptr::exception_ptr::_M_release()@CXXABI_1.3.13'
/usr/bin/ld: /usr/lib/libQt5Widgets.so.5.15.2: undefined reference to `std::__throw_bad_array_new_length()@GLIBCXX_3.4.29'
/usr/bin/ld: /usr/lib/libQt5Core.so.5.15.2: undefined reference to `std::__exception_ptr::exception_ptr::_M_addref()@CXXABI_1.3.13'
collect2: error: ld returned 1 exit status

Offline

#13 2021-06-01 00:25:12

loqs
Member
Registered: 2014-03-06
Posts: 18,045

Re: C++ Qt5 & CUDA Issue when compiling project

Something is going wrong in the linkers search paths.
Using your sample files plus an empty mainwindow.h and the following PKGBUILD,  I could reproduce the issue until I added -L /usr/lib to LDFLAGS.

pkgname=NAME
pkgver=VERSION
pkgrel=1
pkgdesc=""
arch=('x86_64')
url=""
license=('GPL')
depends=()
makedepends=('cuda' 'cmake' 'qt5-base')
source=(CMakeLists.txt  main.cpp mainwindow.h testfile.cuh  testfile.cu)
sha256sums=('71e619a367211242a485a9e463493038291fd7fdac660638be7f8c6443a7d306'
            '48227154d0bfd552a52a8f9b1cc536fe8d46d4ed729fa3dffa25b4eb9ca6153d'
            'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855'
            'cb17f8d3eaa7c4b3e6676f364c5d9c88b56b500bc93e46d3924e2c2948ebdbd1'
            'ac8d8e373c058e2d9fb502de879916939f3f0314b36aeb623bd55fb4a89db333')

build() {
  LDFLAGS+=' -L/usr/lib'
  VERBOSE="" cmake -S . -B build
  make -C build
}

package() {
  :
}

Offline

#14 2021-06-01 01:26:47

twobooks
Member
From: rainforest
Registered: 2020-06-23
Posts: 46

Re: C++ Qt5 & CUDA Issue when compiling project

How about downgrade to qt5-base-5.15.2-5-x86_64.pkg.tar.zst

Offline

#15 2021-06-01 08:40:24

GreenSokrates
Member
Registered: 2021-05-25
Posts: 9

Re: C++ Qt5 & CUDA Issue when compiling project

loqs wrote:

Something is going wrong in the linkers search paths.
Using your sample files plus an empty mainwindow.h and the following PKGBUILD,  I could reproduce the issue until I added -L /usr/lib to LDFLAGS.

THANK YOU!
If I export LDFLAGS before invoking CMake & make it builds, links, and runs as expected!

Is this a CMake or a Qt5 issue? And why did it only start to happen after the qt5-base pkg upgrade?
Should I file a bug report in CMake / Qt5 upstream?

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#16 2021-06-01 08:42:24

GreenSokrates
Member
Registered: 2021-05-25
Posts: 9

Re: C++ Qt5 & CUDA Issue when compiling project

twobooks wrote:

How about downgrade to qt5-base-5.15.2-5-x86_64.pkg.tar.zst

The main reason is, that I'm using the archlinux docker image to auto build and deploy the project.
I didn't want to write the config to install qt5-base and then downgrade it again.

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#17 2021-06-01 16:39:59

arojas
Developer
From: Spain
Registered: 2011-10-09
Posts: 2,151

Re: C++ Qt5 & CUDA Issue when compiling project

GreenSokrates wrote:

Is this a CMake or a Qt5 issue?

Neither. The problem is cuda using an older GCC version than the one Qt is compiled with.

And why did it only start to happen after the qt5-base pkg upgrade?

Because older versions were compiled with an older GCC.

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