mpiexec无法启动指定的应用程序(Raspberry pi) [英] mpiexec was unable to launch the specified application (Raspberry pi)

问题描述

对于以下三个命令中的每一个，我都会遇到相同的错误.是我来自ifconfig的IP地址.对出什么问题有任何想法吗?昨晚很好.

I get the same error for each of the 3 following commands. is my ip address from ifconfig. Any ideas on what is going wrong? It worked fine last night.

mpiexec -f machinefile -n <number> hostname
mpiexec -f machinefile –n 1 hostname
mpiexec -f machinefile -n 2 ~/mpich_build/examples/cpi
--------------------------------------------------------------------------
mpiexec was unable to launch the specified application as it could not find an executable:

Executable: -f
Node: raspberrypi

while attempting to start process rank 0.
--------------------------------------------------------------------------

我正在学习 http://www.southampton上的教程. ac.uk/~sjc/raspberrypi/pi_supercomputer_southampton.htm

推荐答案

我的猜测是您已经安装了OpenMPI，如示例中所示，是MPICH2.没什么问题，但是指定机器文件之类的选项有些不同.你想要

My guess is that you've installed OpenMPI, as vs MPICH2 as given in the examples, yes? There's nothing wrong with that, but the options for things like specifying machine files are somewhat different. You'll want

mpiexec -machinefile machinefile -n 1 hostname

等

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