[mpich-discuss] Unexpected results

[Ken Miller]

Ursula,

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?

Thanks.

Ken

Sent from my iPad

> On Apr 3, 2015, at 3:05 AM, Winkler, Ursula (ursula.winkler at uni-graz.at) <ursula.winkler at uni-graz.at> wrote:
> 
> Hi,
>  
> did you check the firewall?
>  
> Ursula
>  
> Von: Ken Miller [mailto:swonomo at gmail.com] 
> Gesendet: Freitag, 03. April 2015 02:34
> An: discuss at mpich.org
> Betreff: [mpich-discuss] Unexpected results
>  
> Hello,
>  
> 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:
>  
> mpiexec -f machinefile -n 4 hostname
>  
> My machinefile contains the following:
>  
> pi at Pi01 ~/mpi_test $ cat machinefile
> 192.168.2.121
> 192.168.2.122
> 192.168.2.123
> 192.168.2.124
>  
> But, when I run the mpiexec command, I get the following error:
>  
> pi at Pi01 ~/mpi_test $ mpiexec -f machinefile -n 4 hostname
> Pi01
> [mpiexec at Pi01] control_cb (/home/pi/mpich2/mpich-3.1/src/pm/hydra/pm/pmiserv/pmiserv_cb.c:200): assert (!closed) failed
> [mpiexec at 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
> [mpiexec at 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
> [mpiexec at Pi01] main (/home/pi/mpich2/mpich-3.1/src/pm/hydra/ui/mpich/mpiexec.c:336): process manager error waiting for completion
> pi at Pi01 ~/mpi_test $ 
>  
> Clearly, I am missing something. Would appreciate any help in advance.
>  
> Thanks.
>  
> Ken
>  
> 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.
>  
> ping 192.168.2.122
> PING 192.168.2.122 (192.168.2.122) 56(84) bytes of data.
> 64 bytes from 192.168.2.122: icmp_req=1 ttl=64 time=0.807 ms
> 64 bytes from 192.168.2.122: icmp_req=2 ttl=64 time=0.626 ms
> 64 bytes from 192.168.2.122: icmp_req=3 ttl=64 time=0.614 ms
> 64 bytes from 192.168.2.122: icmp_req=4 ttl=64 time=0.605 ms
> 64 bytes from 192.168.2.122: icmp_req=5 ttl=64 time=0.603 ms
> ^C
> --- 192.168.2.122 ping statistics ---
> 5 packets transmitted, 5 received, 0% packet loss, time 4002ms
> rtt min/avg/max/mdev = 0.603/0.651/0.807/0.078 ms
> pi at Pi01 ~/mpi_test $ ping 192.168.2.123
> PING 192.168.2.123 (192.168.2.123) 56(84) bytes of data.
> 64 bytes from 192.168.2.123: icmp_req=1 ttl=64 time=0.794 ms
> 64 bytes from 192.168.2.123: icmp_req=2 ttl=64 time=0.634 ms
> 64 bytes from 192.168.2.123: icmp_req=3 ttl=64 time=0.628 ms
> 64 bytes from 192.168.2.123: icmp_req=4 ttl=64 time=0.607 ms
> ^C
> --- 192.168.2.123 ping statistics ---
> 4 packets transmitted, 4 received, 0% packet loss, time 3003ms
> rtt min/avg/max/mdev = 0.607/0.665/0.794/0.081 ms
> pi at Pi01 ~/mpi_test $ ping 192.168.2.124
> PING 192.168.2.124 (192.168.2.124) 56(84) bytes of data.
> 64 bytes from 192.168.2.124: icmp_req=1 ttl=64 time=0.787 ms
> 64 bytes from 192.168.2.124: icmp_req=2 ttl=64 time=0.632 ms
> 64 bytes from 192.168.2.124: icmp_req=3 ttl=64 time=0.612 ms
> ^C
> --- 192.168.2.124 ping statistics ---
> 3 packets transmitted, 3 received, 0% packet loss, time 2002ms
> rtt min/avg/max/mdev = 0.612/0.677/0.787/0.078 ms
> pi at Pi01 ~/mpi_test $ 
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