LibTorch with OpenCV:未找到版本GOMP_5.0

Question

我试图在同一个项目中使用OpenCV和LibTorch。Libtorch安装在/usr/include/lib手电中，从PyTorch网站下载。我正在使用cxx11 ABI版本的CUDA 11.3。

这是我的CMakeLists.txt文件：

cmake_minimum_required(VERSION 3.23 FATAL_ERROR)
project(chess-rl VERSION 1.0)

find_package( OpenCV REQUIRED )

set(CMAKE_PREFIX_PATH /usr/include/libtorch/share/cmake/)

find_package(Torch REQUIRED)
include_directories(${OpenCV_INCLUDE_DIRS})
include_directories(${OpenCV_LIBS})
include_directories(${TORCH_INCLUDE_DIRS})
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${TORCH_CXX_FLAGS}")

file (GLOB SOURCE_FILES 
  ${PROJECT_SOURCE_DIR}/src/*.cc
  ${PROJECT_SOURCE_DIR}/src/chess/*.cc
)

add_executable(${PROJECT_NAME} ${SOURCE_FILES})
target_link_libraries(${PROJECT_NAME} ${OpenCV_LIBS} "${TORCH_LIBRARIES}" )
set_property(TARGET ${PROJECT_NAME} PROPERTY CXX_STANDARD 20)

程序顶部有一条#include <opencv2/opencv.hpp>线。编译工作正常，但是运行可执行文件会导致以下错误：

/usr/include/libtorch/lib/libgomp-52f2fd74.so.1: version `GOMP_5.0' not found (required by /usr/lib/libvtkCommonCore.so.1)

我相信lib手电正在尝试使用一个与OpenCV不兼容的库。如果我用LD_PRELOAD=/usr/lib/libgomp.so ./build/my-program运行这个程序，它会运行得很好。

我如何在不用使用该环境变量的情况下修复此错误？有没有办法将CMake中的特定库链接起来？

Answer 1

我也面临着同样的问题，而您的线程促成了一个解决方案。您需要在CMakelists.txt文件中添加一个共享库。

add_library(libName SHARED IMPORTED)
set_property(TARGET libName PROPERTY IMPORTED_LOCATION "/usr/lib/libgomp.so")
target_link_libraries(PROJECT_NAME
libName)

我希望我能帮你问好