如何将CUDA库与CPP项目/文件与CMAKE链接？

Question

我正在尝试使用GTK库编写一个GUI程序，并与CUDA库进行一些矩阵操作，但是，在尝试链接项目中的CUDA库时，我会遇到错误。我的cmake看起来像这样：

cmake_minimum_required(VERSION 3.21)
project(untitled1)

set(CMAKE_CXX_STANDARD 14)


find_package(CUDAToolkit)
include_directories(${CUDA_INCLUDE_DIRS})
link_directories(${CUDA_LIBRARY_DIRS})

find_package(PkgConfig REQUIRED)
pkg_check_modules(GTK3 REQUIRED gtk+-3.0)
include_directories(${GTK3_INCLUDE_DIRS})
link_directories(${GTK3_LIBRARY_DIRS})

add_definitions(${GTK3_CFLAGS_OTHER})

add_executable(untitled1 main.cpp bob.h bob.cu)
target_link_libraries(untitled1 ${GTK3_LIBRARIES} ${CUDA_LIBRARIES} ${CUDA_CUDART_LIBRARY})

但是我在POP OS 21.10（Ubuntu）上收到以下错误

-- Unable to find cuda_runtime.h in "/usr/lib/cuda/include" for CUDAToolkit_INCLUDE_DIR.
-- Unable to find cudart library.
-- Could NOT find CUDAToolkit (missing: CUDAToolkit_INCLUDE_DIR CUDA_CUDART) (found version "11.2.67")
-- Configuring done
CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
CUDA_CUDART_LIBRARY (ADVANCED)

，我可以在该项目之外使用CUDA库和NVCC，因此我知道它已安装并正常工作。我只是不知道如何将CUDA库与非CUDA项目联系起来。

编辑：工作cmakelists.txt下方在thx到dhyun

# Set the minimum version of cmake required to build this project
cmake_minimum_required(VERSION 3.21)

# Set the name and the supported language of the project
project(final CUDA)

set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CUDA_STANDARD 14)

# Use the package PkgConfig to detect GTK+ headers/library files
find_package(PkgConfig REQUIRED)
pkg_check_modules(GTK3 REQUIRED gtk+-3.0)

# Setup CMake to use GTK+, tell the compiler where to look for headers
# and to the linker where to look for libraries
include_directories(${GTK3_INCLUDE_DIRS})
link_directories(${GTK3_LIBRARY_DIRS})

# Add other flags to the compiler
add_definitions(${GTK_CFLAGS_OTHER})

# Add an executable compiled from files:
add_executable(final main.cu showtext.h)

target_link_libraries(final ${GTK3_LIBRARIES})

# Idk what this does or if it's necessary, but it works with it and was there on creation
# So I'm keeping it :)
set_target_properties(final PROPERTIES
        CUDA_SEPARABLE_COMPILATION ON)

Answer 1

我无法说明您的确切设置，但是我在Ubuntu上的Cmake和Cuda取得了成功，直接使CUDA作为项目声明中的一种语言，而不是使用find_package（cudatoolkit）。

类似：

cmake_minimum_required(VERSION 3.21)
project(untitled1 LANGUAGES CUDA CXX)

set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CUDA_STANDARD 14)

find_package(PkgConfig REQUIRED)
pkg_check_modules(GTK3 REQUIRED gtk+-3.0)
include_directories(${GTK3_INCLUDE_DIRS})
link_directories(${GTK3_LIBRARY_DIRS})

add_definitions(${GTK3_CFLAGS_OTHER})

add_executable(untitled1 main.cpp bob.h bob.cu)
target_link_libraries(untitled1 ${GTK3_LIBRARIES})

我相信cudart是自动链接的，但是您需要指定您使用的任何其他库（Cufft，cublas，cudnn等）。