[mpich-discuss] Unexpected results

[Ken Miller]

Ursula,

No worries, just glad I could get it to work. Sometimes it just takes someone to help think differently :)

Thanks again.

Ken


On Apr 3, 2015, at 6:43 AM, Winkler, Ursula (ursula.winkler at uni-graz.at) <ursula.winkler at uni-graz.at> wrote:

> >I tried disabling the firewall real quick and still got the same results.
>  
> Disabling a potential error source for trial and error is always a good thing to isolate a problem.
>  
> However, at one point I got the following error:
> [proxy:0:1 at Pi02] launch_procs (/home/pi/mpich2/mpich-3.1/src/pm/hydra/pm/pmiserv/pmip_cb.c:641): unable to change wdir to /home/pi/mpi_test (No such file or directory)
>  
> So I scratched my head and wondered if it was something as silly as the fact that I was calling mpiexec from a directory that existed on Pi01 and not on the other three. I quickly created the same directory on the other three Pis and bam:
>  
> pi at Pi01 ~/mpi_test $ mpiexec -f machinefile -n 4 hostname
> Pi01
> Pi04
> Pi03
> Pi02
>  
> Was it really that simple?
>  
> Thanks.
>  
> Ken
>  
> Yes, That *IS* possible ! J   As you mention it now – I had the same problem some years ago. Unfortunately I didn’t remember in time sparing you from dealing with  the same trouble.
>  
> Ursula
>  
>  
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