本文介绍了如何在CLion中设置基本的openMP项目的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试在CLion IDE
中运行简单的OpenMP
程序.当我运行它时,我得到一个错误:
I am trying to run simple OpenMP
program in CLion IDE
.When I run it I get an ERROR:
CMakeFiles\openmp_test_clion.dir/objects.a(main.cpp.obj): In function `main':
D:/.../openmp_test_clion/main.cpp:9: undefined reference to 'omp_get_thread_num'
collect2.exe: error: ld returned 1 exit status
这是我的代码:
#include <stdio.h>
#include <omp.h>
int main()
{
int id;
#pragma omp parallel private(id)
{
id = omp_get_thread_num();
printf("%d: Hello World!\n", id);
}
return 0;
}
这是我的CMakeLists.txt
:
cmake_minimum_required(VERSION 3.6)
project(openmp_test_clion)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(SOURCE_FILES main.cpp)
add_executable(openmp_test_clion ${SOURCE_FILES})
message(STATUS "Checking OpenMP")
find_package(OpenMP)
IF(OPENMP_FOUND)
message("Found OpenMP!)
# add flags for OpenMP
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${OpenMP_SHARED_LINKER_FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${OpenMP_EXE_LINKER_FLAGS}")
ELSE()
message("Missed OpenMP!")
ENDIF()
这是我的工具链的屏幕:
Here is screen of my toolchains:
我对OpenMP
的使用经验为零,并且是C++
的初学者.因此,请给我一些解释,说明如何设置我的项目.
I have zero experience with OpenMP
and I am beginner programmer in C++
so please give me a bit of an explanation how to setup my project.
推荐答案
所以过了一会儿,我发现了.我将CmakeLists.txt更改如下:
So after a while I figured it out. I changed CmakeLists.txt as following:
cmake_minimum_required(VERSION 3.6)
project(openmp_test_clion)
# added -fopenmp
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -fopenmp")
set(SOURCE_FILES main.cpp)
add_executable(openmp_test_clion ${SOURCE_FILES})
我需要通过 TDM-GCC安装程序安装openmp.
And I needed to install openmp via TDM-GCC installer .
这篇关于如何在CLion中设置基本的openMP项目的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!