[GE users] Problems with LAM tight integration

Reuti reuti at staff.uni-marburg.de
Fri Aug 4 18:52:08 BST 2006


Am 04.08.2006 um 19:43 schrieb slaton:

>> Fine, but I was a little bit confused - sorry: can you please put  
>> it in
>> the startlam.sh, and also echo the $PATH there (just before the
>> lamboot)? As the daemons startup there, the error must also occur  
>> there.
>>
>> You could even just put only an echo something in your real job  
>> script
>> without any mpirun command at all, or use the "lamnodes" command  
>> there,
>> to display the started daemons of LAM.
>
> OK....results:
>
>  startlam.sh: using rsh_wrapper /opt/sge/lam_tight_qrsh/rsh
>  startlam.sh: using PATH /tmp/105.1.testing:/usr/local/bin:/bin:/ 
> usr/bin
>  startlam.sh: using rsh /tmp/105.1.testing/rsh
>

The PATH is okay, it should be this way.

> Not sure why PATH is being clobbered here.
>
> Then i get, in the (pe) file:
>
>  error: ERROR! invalid option argument "-n"
>  The lamboot agent timed out while waiting for the newly-booted  
> process
>  to call back and indicated that it had successfully booted.
>

Okay, please add the -v -d to lamboot, maybe we see something there.  
- Reuti


>  [...lots more verbose errors from lam...]
>
>  error: error reading returncode of remote command
>
> In the error (e) file:
>
>  It seems that there is no lamd running on the host qcn12.
>
>  This indicates that the LAM/MPI runtime environment is not operating.
>  The LAM/MPI runtime environment is necessary for the "lamnodes"  
> command.
>
> This is after changing the script to just run the command  
> 'lamnodes'. So
> lamnodes fails because lamboot has problems, just like before with
> mpihello. Presumably this goes back to the same problem of additional
> arguments being added to 'rsh'...
>
> thanks,
> slaton
>
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