[mpich-discuss] mpirun not running in batch mode.

[Francisco Pastor]

Hi Gilles

As I'm using mpich2-1.0.5 I just need an mpd.hosts file in the directory 
I'm running the executable. Yesterday I installed mpich3.1 and compiled 
my application but running issued an error about a shared library so I 
went back to mpich2. Maybe I should upgrade.

Going back to mpich2, yes I can run

mpirun -n 40 hostname > log.hostname

both from shell and at, yielding names of the five nodes.

But if run from crontab log.hostname is empty (0 size). Maybe the 
problem is crontab and not application related.

Yes, I can ssh passwordless between every node in the cluster

Yes, I run  /home/meteo/RAMS/SCRIPTS/RAMS_operatiu.bash  and "mpirun -n 
40 ./rams60" from the shell and output is fine, running rams60 processes 
in all nodes.

Thanks for your interest and help

El 13/06/2014 4:01, Gilles Gouaillardet escribió:
> Francisco,
>
> this is fine, i just wanted to double check you were not using a
> machinefile the wrong way.
>
> your initial request was :
>> If the script that runs the model is scheduled with cron it just
>> starts processes on the main node but not in the rest of the cluster
>> nodes.
> and from what i can read, you are not using any machinefile.
> how do you expect your job run on all the cluster nodes if you do not
> have a machinefile ?
>
> can you run
> $ruta_mpi/mpirun -n 40 hostname
> both from shell and crontab
>
> which nodes are used in both cases ?
>
>
> by the way, can you ssh passwordless on all the nodes from where the
> cron is ran ?
> passwordless means you do not need to enter any password and/or
> passphrase nor "save" your passphase via ssh-agent.
>
> and could you confirm
> /home/meteo/RAMS/SCRIPTS/RAMS_operatiu.bash  < /dev/null
>
> works fine from the shell ?
>
> Cheers,
>
> Gilles
>
> On 2014/06/12 21:37, Francisco Pastor wrote:
>> RAMSIN.operatiu is not machinefile. It is a configuration file read by
>> ./rams60.
>>
>> May this be causing a conflict? Does mpirun try to read RAMSIN.operatiu?
>>
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-- 
-----------
Dr. Francisco Pastor
Meteorology department, Instituto Universitario CEAM-UMH
http://www.ceam.es
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