Am 25.10.2012 um 13:11 schrieb Guillermo Marco Puche:
> Hello Reuti,
>
> I got stoned here. I've no idea what MPI library I've got. I'm using Rocks
> Cluster Viper 5.4.3 which comes out with Centos 5.6, SGE, SPM, OPEN MPI and
> MPI.
>
> How can i check which library i got installed?
>
> I found this:
>
> $ mpirun -V
> mpirun (Open MPI) 1.4.3
>
> Report bugs to
> http://www.open-mpi.org/community/help/
Good, and this one you also used to compile the application?
The check whether Open MPI was build with SGE support:
$ ompi_info | grep grid
MCA ras: gridengine (MCA v2.0, API v2.0, Component v1.6.2)
-- Reuti
> Thanks,
>
> Best regards,
> Guillermo.
>
> El 25/10/2012 13:05, Reuti escribió:
>> Am 25.10.2012 um 10:37 schrieb Guillermo Marco Puche:
>>
>>
>>> Hello !
>>>
>>> I found a new version of my tool which supports multi-threading but also
>>> MPI or OPENMPI for more additional processes.
>>>
>>> I'm kinda new to MPI with SGE. What would be the good command for qsub or
>>> config inside a job file to ask SGE to work with 2 MPI processes?
>>>
>>> Will the following code work in a SGE job file?
>>>
>>> #$ -pe mpi 2
>>>
>>> That's supposed to make job work with 2 processes instead of 1.
>>>
>> Not out of the box: it will grant 2 slots for the job according to the
>> allocation rules of the PE. But how to start your application in the
>> jobscript inside the granted allocation is up to you. Fortunately the MPI
>> libraries got an (almost) automatic integration into queuing systems
>> nowadays without further user intervention.
>>
>> Which MPI library do you use when you compile your application of the
>> mentioned ones above?
>>
>> -- Reuti
>>
>>
>>
>>> Regards,
>>> Guillermo.
>>>
>>> El 22/10/2012 17:19, Reuti escribió:
>>>
>>>> Am 22.10.2012 um 16:31 schrieb Guillermo Marco Puche:
>>>>
>>>>
>>>>
>>>>> I'm using a program where I can specify the number of threads I want to
>>>>> use.
>>>>>
>>>>>
>>>> Only threads and not additional processes? Then you are limited to one
>>>> node, unless you add something like
>>>> http://www.kerrighed.org/wiki/index.php/Main_Page or http://www.scalemp.com
>>>>
>>>> to get a cluster wide unique process and memory space.
>>>>
>>>> -- Reuti
>>>>
>>>>
>>>>
>>>>
>>>>> I'm able to launch multiple instances of that tool in separate nodes.
>>>>> For example: job_process_00 in compute-0-0, job_process_01 in compute-1
>>>>> etc.. each job is calling that program which splits up in 8 threads (each
>>>>> of my nodes has 8 CPUs).
>>>>>
>>>>> When i setup 16 threads i can't split 8 threads per node. So I would like
>>>>> to split them between 2 compute nodes.
>>>>>
>>>>> Currently I've 4 compute nodes and i would like to speed up the process
>>>>> setting 16 threads of my program splitting between more than one compute
>>>>> node. At this moment I'm stuck using only 1 compute node per process with
>>>>> 8 threads.
>>>>>
>>>>> Thank you !
>>>>>
>>>>> Best regards,
>>>>> Guillermo.
>>>>> _______________________________________________
>>>>> users mailing list
>>>>>
>>>>>
>>>>> [email protected]
>>>>> https://gridengine.org/mailman/listinfo/users
>>> _______________________________________________
>>> users mailing list
>>>
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>
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