C ++可以与OpenMP一起编译并在MacOS上增强吗? [英] Is C++ compilable with OpenMP and boost on MacOS?

问题描述

我现在已经尝试了很多事情，并得出了一些结论.也许，我监督了一些事情，但似乎我无法完成自己想要的事情.

I have tried many things now and have come to some conclusions. Maybe, I oversee something but it seems that I cannot accomplish what I desire.

问题是:是否有可能通过OpenMP和boost在MacOS High Sierra上编译C ++?

The question is: Is there any possibility to compile C++ on MacOS High Sierra with OpenMP and boost?

一些发现(如果我错了，请纠正我):

Some findings (correct me if I am wrong):

• Clang BUT支持OpenMP，而不是MacOS随附的标准MacOS-clang编译器，这也是XCode9唯一支持的编译器
• g ++支持OpenMP
• 如果我通过自制软件安装Boost，则它将使用clang编译器(无法轻松更改)，因此将使用libc ++.
• g ++默认使用libstdc ++，这不容易更改

结果，似乎我不能同时拥有这两种...仅当我使用gcc时才支持OpenMP.但是gcc使用libstdc ++而不是libc ++，因此，如果我尝试使用libc ++链接到通过自制程序安装的boost，则会出现链接器错误.

As a consequence, it seems that I cannot have both... OpenMP is only supported if I use gcc. But gcc uses libstdc++ instead of libc++, so that I get linker errors if I try to link against boost installed via homebrew with libc++.

是否有机会同时运行OpenMP和Boost?

Is there any chance to get both OpenMP and and boost running?

PS:请不要链接到已有1年以上历史的线程，XCode8是另一个故事(较早的XCode版本支持不同的编译器)，而clang-omp则是另一个故事(不再受支持).

PS: Please don't link to some >1 year old threads, XCode8 is another story (earlier XCode versions support different compilers) and clang-omp would be another story (it is no longer supported).

推荐答案

自从您在传递brew install clang-omp时提到过，它已被合并到brew install llvm中.如果愿意，那确实是一个非常有用的选择，因为如果需要的话，您会得到llvm 5和C ++ 17.使用标准选项(即-fopenmp)，它与OpenMP完全兼容.

Since you mentioned in passing brew install clang-omp, it's been merged into brew install llvm. That's really a very useful choice if you are willing to do it, since you get llvm 5 and C++17 if you need it. It's fully OpenMP compatible using the standard options (ie, -fopenmp).

您也可以尝试使用我的冲泡公式来使用内置的叮当声，但是您仍然需要像Alexey Bataev的回答中那样设置自定义选项.使用brew安装:

You can also try my brew formula to use the built-in clang, but you'd still need to set up custom options as in Alexey Bataev's answer. Install with brew:

brew install cliutils/apple/libomp

这仅添加了openMP动态库和标头，仅此而已.然后使用:

This only adds the openMP dynamic library and header, nothing else. Then build with:

clang++ -Xpreprocessor -fopenmp -lomp <other arguments...>

请参见自述文件.如果您使用的是cmake，则帮助文件此处可能会有所帮助.

See the readme. If you are using cmake, the helper file here might help.

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