如何使用 cmake 编译包含 MPI 的 c 程序 [英] How to compile an MPI included c program using cmake

问题描述

我正在尝试将 openmp 和 mpi 技术应用于需要构建cmake .&&make"的开源 C 程序.我已经在 How to set linkerCMake 的 try_compile 函数中的 OpenMP 标志 如何包含 -fopenmp 标志但仍然对 mpi 感到困惑.我该怎么办?

I am trying to apply openmp and mpi techniques to an open source C program which requires "cmake . && make" to be built. I already found at How to set linker flags for OpenMP in CMake's try_compile function how to include the -fopenmp flags but still confused about mpi. What can I do about that?

推荐答案

OpenMP

这是关于 OpenMP 的问题吗?然后你所要做的就是使用 -fopenmp 编译，你可以通过将它附加到 CMAKE_C_FLAGS 来完成，例如:

OpenMP

Is this a question about OpenMP? Then all you have to do is compile with -fopenmp which you can do by appending it to CMAKE_C_FLAGS, for example:

SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fopenmp)

MPI

对于MPI，必须先找到mpi

find_package(MPI) #make it REQUIRED, if you want

然后将其头文件添加到您的搜索路径

then add it's header files to your search path

include_directories(SYSTEM ${MPI_INCLUDE_PATH})

最后链接你的程序(在我的例子中是 my_mpi_target)

and finally link your program(s) (which is my_mpi_target in my case)

 target_link_libraries(my_mpi_target ${MPI_C_LIBRARIES})

这篇关于如何使用 cmake 编译包含 MPI 的 c 程序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IT屋！