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 3 个命令中的每一个，我都收到相同的错误.是我来自 ifconfig 的 IP 地址.关于出了什么问题的任何想法?昨晚效果很好.

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 中的教程.ac.uk/~sjc/raspberrypi/pi_supercomputer_southampton.htm

推荐答案

我猜你已经安装了 OpenMPI，就像示例中给出的那样 vs MPICH2，是吗?这没有什么错，但是指定机器文件之类的选项有些不同.你会想要

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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