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<meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Ursula,</div><div><br></div><div>Not sure what to check, but I'll check the router after work today. The question I have though, is there something there that will stop internal network traffic? I've had no issues with anything being done on the internal network other than this, so would simply having a firewall on my router affect messages being passed between computers on my network when it doesn't involve trying to come from outside my network in?</div><div><br></div><div>Thanks.</div><div><br></div><div>Ken<br><br>Sent from my iPad</div><div><br>On Apr 3, 2015, at 3:05 AM, Winkler, Ursula (<a href="mailto:ursula.winkler@uni-graz.at">ursula.winkler@uni-graz.at</a>) <<a href="mailto:ursula.winkler@uni-graz.at">ursula.winkler@uni-graz.at</a>> wrote:<br><br></div><blockquote type="cite"><div>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">did you check the firewall?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Ursula<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="DE" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Von:</span></b><span lang="DE" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Ken Miller [<a href="mailto:swonomo@gmail.com">mailto:swonomo@gmail.com</a>]
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<b>Gesendet:</b> Freitag, 03. April 2015 02:34<br>
<b>An:</b> <a href="mailto:discuss@mpich.org">discuss@mpich.org</a><br>
<b>Betreff:</b> [mpich-discuss] Unexpected results<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hello,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I am hoping someone might be able to point out what I am doing wrong. I have setup a Raspberry Pi cluster by going through a couple tutorials. The last step is to use MPI to test the cluster. Everything was going great until I ran the following
command:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">mpiexec -f machinefile -n 4 hostname<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">My machinefile contains the following:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#34BD26">pi@Pi01</span></b><span style="font-size:8.5pt;font-family:"Menlo","serif"">
<b><span style="color:#5330E1">~/mpi_test $</span></b> cat machinefile<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">192.168.2.121<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">192.168.2.122<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">192.168.2.123<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">192.168.2.124<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">But, when I run the mpiexec command, I get the following error:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#34BD26">pi@Pi01</span></b><span style="font-size:8.5pt;font-family:"Menlo","serif"">
<b><span style="color:#5330E1">~/mpi_test $</span></b> mpiexec -f machinefile -n 4 hostname<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">Pi01<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">[mpiexec@Pi01] control_cb (/home/pi/mpich2/mpich-3.1/src/pm/hydra/pm/pmiserv/pmiserv_cb.c:200): assert (!closed) failed<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">[mpiexec@Pi01] HYDT_dmxu_poll_wait_for_event (/home/pi/mpich2/mpich-3.1/src/pm/hydra/tools/demux/demux_poll.c:76): callback returned error status<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">[mpiexec@Pi01] HYD_pmci_wait_for_completion (/home/pi/mpich2/mpich-3.1/src/pm/hydra/pm/pmiserv/pmiserv_pmci.c:198): error waiting for event<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">[mpiexec@Pi01] main (/home/pi/mpich2/mpich-3.1/src/pm/hydra/ui/mpich/mpiexec.c:336): process manager error waiting for completion<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#34BD26">pi@Pi01</span></b><span style="font-size:8.5pt;font-family:"Menlo","serif";color:black">
</span><b><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#5330E1">~/mpi_test $</span></b><span style="font-size:8.5pt;font-family:"Menlo","serif";color:black"> </span><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#5330E1"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#5330E1"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif";color:black">Clearly, I am missing something. Would appreciate any help in advance.</span><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#5330E1"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#5330E1"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif";color:black">Thanks.</span><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#5330E1"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#5330E1"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif";color:black">Ken</span><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#5330E1"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#5330E1"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">ps. I am connected to the other Pis evident by the following ping results. I can also log into each of the other 3 Pis.</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">ping 192.168.2.122<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">PING 192.168.2.122 (192.168.2.122) 56(84) bytes of data.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">64 bytes from 192.168.2.122: icmp_req=1 ttl=64 time=0.807 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">64 bytes from 192.168.2.122: icmp_req=2 ttl=64 time=0.626 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">64 bytes from 192.168.2.122: icmp_req=3 ttl=64 time=0.614 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">64 bytes from 192.168.2.122: icmp_req=4 ttl=64 time=0.605 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">64 bytes from 192.168.2.122: icmp_req=5 ttl=64 time=0.603 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">^C<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">--- 192.168.2.122 ping statistics ---<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">5 packets transmitted, 5 received, 0% packet loss, time 4002ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">rtt min/avg/max/mdev = 0.603/0.651/0.807/0.078 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#34BD26">pi@Pi01</span></b><span style="font-size:8.5pt;font-family:"Menlo","serif"">
<b><span style="color:#5330E1">~/mpi_test $</span></b> ping 192.168.2.123<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">PING 192.168.2.123 (192.168.2.123) 56(84) bytes of data.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">64 bytes from 192.168.2.123: icmp_req=1 ttl=64 time=0.794 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">64 bytes from 192.168.2.123: icmp_req=2 ttl=64 time=0.634 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">64 bytes from 192.168.2.123: icmp_req=3 ttl=64 time=0.628 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">64 bytes from 192.168.2.123: icmp_req=4 ttl=64 time=0.607 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">^C<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">--- 192.168.2.123 ping statistics ---<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">4 packets transmitted, 4 received, 0% packet loss, time 3003ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">rtt min/avg/max/mdev = 0.607/0.665/0.794/0.081 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#34BD26">pi@Pi01</span></b><span style="font-size:8.5pt;font-family:"Menlo","serif"">
<b><span style="color:#5330E1">~/mpi_test $</span></b> ping 192.168.2.124<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">PING 192.168.2.124 (192.168.2.124) 56(84) bytes of data.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">64 bytes from 192.168.2.124: icmp_req=1 ttl=64 time=0.787 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">64 bytes from 192.168.2.124: icmp_req=2 ttl=64 time=0.632 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">64 bytes from 192.168.2.124: icmp_req=3 ttl=64 time=0.612 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">^C<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">--- 192.168.2.124 ping statistics ---<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">3 packets transmitted, 3 received, 0% packet loss, time 2002ms<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Menlo","serif"">rtt min/avg/max/mdev = 0.612/0.677/0.787/0.078 ms<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#34BD26">pi@Pi01</span></b><span style="font-size:8.5pt;font-family:"Menlo","serif";color:black">
</span><b><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#5330E1">~/mpi_test $</span></b><span style="font-size:8.5pt;font-family:"Menlo","serif";color:black"> </span><span style="font-size:8.5pt;font-family:"Menlo","serif";color:#5330E1"><o:p></o:p></span></p>
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