macos - 如何在 Mac OS X 上使用 mpi

Question

我一直在寻找一种在我的 Mac 上使用 mpi 的方法，但一切都非常先进。

我已经使用成功安装了 open-mpi

brew install open-mpi

我有 .c 文件可供编译和运行。当我输入:

mpicc -o <file> <file.c>

其次是

mpirun <file>

我明白了

[xxxxx-MacBook-Pro.local:13623] [[44919,0],0] ORTE_ERROR_LOG: Bad parameter in file orted/pmix/pmix_server.c at line 262
[xxxxx-MacBook-Pro.local:13623] [[44919,0],0] ORTE_ERROR_LOG: Bad parameter in file ess_hnp_module.c at line 666

It looks like orte_init failed for some reason; your parallel process is likely to abort. There are many reasons that a parallel process can fail during orte_init; some of which are due to configuration or environment problems. This failure appears to be an internal failure; here's some additional information (which may only be relevant to an Open MPI developer):

pmix server init failed
--> Returned value Bad parameter (-5) instead of ORTE_SUCCESS

当我输入时，我也收到相同的消息:

mpirun -np 2 <file>

我做错了什么？

Answer 1

如果我是你，我会执行以下操作:

Open MPI 的安装相当简单

https://www.open-mpi.org/software/ompi/v2.0/

> tar xf openmpi-2.0.2.tar
> cd openmpi-2.0.2/
> ./configure --prefix=$HOME/opt/usr/local
> make all
> make install
> $HOME/opt/usr/local/bin/mpirun --version
mpirun (Open MPI) 2.0.2

Report bugs to http://www.open-mpi.org/community/help/

您可以使用 super 简单的 hello world 进行测试

#include <mpi.h>
#include <stdio.h>

int main(int argc, char** argv) {
    MPI_Init(NULL, NULL);
    int rank;
    int world;
    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    MPI_Comm_size(MPI_COMM_WORLD, &world);
    printf("Hello: rank %d, world: %d\n",rank, world);
    MPI_Finalize();
}

一切就绪后，只需编译并运行代码

$HOME/opt/usr/local/bin/mpicc -o hello ./hello.c
$HOME/opt/usr/local/bin/mpirun -np 2 ./hello
Hello: rank 0, world: 2
Hello: rank 1, world: 2

在 macOS 上完美运行

更新

如果您正在 macOS 上寻找与 MPI 相关的环境，我建议您查看模块的概念。

• 构建 MPICH/OpenMPI - https://www.owsiak.org/building-opencoarrays-on-macos-everything-from-the-sources-gcc-9-2-0/
• 模块 - https://www.owsiak.org/modules-as-a-convenient-way-of-choosing-build-chain-on-macos/

更新

上述博客条目有更新版本:

• https://www.owsiak.org/building-opencoarrays-on-macos-everything-from-the-sources-gcc-13-2-0/