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<p class="MsoNormal">I realize this may be a bit off topic, but since what I am doing seems to be a pretty commonly done thing I am hoping to find someone who has done it before/can help since I’ve been at my wits end for so long they are calling me Mr. Whittaker.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am trying to run HPL on a Raspberry Pi cluster. I used the following guides to get to where I am now:<o:p></o:p></p>
<p class="MsoNormal"><a href="http://www.tinkernut.com/2014/04/make-cluster-computer/">http://www.tinkernut.com/2014/04/make-cluster-computer/</a><o:p></o:p></p>
<p class="MsoNormal"><a href="http://www.tinkernut.com/2014/05/make-cluster-computer-part-2/">http://www.tinkernut.com/2014/05/make-cluster-computer-part-2/</a><o:p></o:p></p>
<p class="MsoNormal"><a href="https://www.howtoforge.com/tutorial/hpl-high-performance-linpack-benchmark-raspberry-pi/#comments">https://www.howtoforge.com/tutorial/hpl-high-performance-linpack-benchmark-raspberry-pi/#comments</a><o:p></o:p></p>
<p class="MsoNormal">and a bit of: <a href="https://www.raspberrypi.org/forums/viewtopic.php?p=301458#p301458">
https://www.raspberrypi.org/forums/viewtopic.php?p=301458#p301458</a> when the above guide wasn’t working<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">basically when I run: “<span style="font-family:"Courier New"">mpiexec -machinefile ~/machinefile -n 1 xhpl</span>” it works just fine<o:p></o:p></p>
<p class="MsoNormal">but when I run “<span style="font-family:"Courier New"">mpiexec -machinefile ~/machinefile -n 4 xhpl</span>” it errors with the attached image. (if I use “<span style="font-family:"Courier New"">mpirun…”</span> I get the exact same behavior)<o:p></o:p></p>
<p class="MsoNormal">[Note: I HAVE changed the HPL.dat to have “<span style="font-family:"Courier New"">2 Ps</span>” and “<span style="font-family:"Courier New"">2 Qs</span>” from 1 and 1 for when I try to run it with 4 processes]<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This is for a project of mine which I need done by the end of the week so if you see this after 5/29 thank you but don’t bother responding<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have <span style="font-family:"Courier New";color:#4472C4">
hpl-2.1</span>, <span style="font-family:"Courier New";color:#4472C4">mpi4py-1.3.1</span>,
<span style="font-family:"Courier New";color:#4472C4">mpich-3.1</span>, and <span style="font-family:"Courier New";color:#4472C4">
openmpi-1.8.5</span> at my disposal<o:p></o:p></p>
<p class="MsoNormal">In the machinefile are the 4 IP addresses of my 4 RPi nodes<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">10.15.106.107<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">10.15.101.29<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">10.15.106.108<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New"">10.15.101.30<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Any other information you need I can easily get to you so please do not hesitate to ask. I have nothing else to do but try and get this to work :P<o:p></o:p></p>
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