[UR-WG] Usage Record feedback

[Andre Merzky]

Hi Andrea, Fotis,

On Tue, Jul 23, 2013 at 12:16 PM, Andrea Cristofori
<andrea.cristofori at cnaf.infn.it> wrote:
>
>> * You may wish to provide the ability to report "container job ID", ref.
>>
>> http://oar.imag.fr/sources/2.5/docs/documentation/OAR-DOCUMENTATION-USER/#container-jobs
>>  As name suggests it permits to first make a reservation there run your jobs
>> in it;
>>  it can be a useful feature for billing, eg. if you organize an HPC school
>>  and, would rather wish to avoid charging twice, for trainee jobs within
>> trainer's job.
>>  (just an example, they have many more uses)
>
>
> I am not sure why this would be necessary. If the accounting takes is based
> only on the CPU time then there should be no problem on how many processes
> are or jobs are run. But maybe I am missing something here.

I think this is similar to pilot jobs: a pilot (container) is
submitted to a batch system, and once executed, that pilot job will
run many smaller subjobs on its own.  So, pilots are basically a user
level scheduling overlay over the batch system.

IIUC, Fotis' use case is if a container job is submitted under account
(A), and the subjobs are started under account (B), (C) etc.  -- then
accounting should ideally be done to (B), (C)....

I also find this useful - we work heavily with pilot jobs, and for
example in gateway use cases, multi-user pilots are not uncommon.  But
there are more issues than just the accounting record, in particular
security (the other two A's).  But Oar seems to have container jobs
built in, so security is probably given -- in that context, accounting
support makes lot of sense...

My $0.02,

  Andre.



> kind regards,
> Fotis
>
> ps. I am not receiving the m-list traffic, kindly keep me in cc for
> feedback.
>
>
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> Kind regards,
> Andrea
>
>
>
>
> --
> Drs./Eng. Fotis Georgatos <Fotis.Georgatos at uni.lu>
> HPC Systems Engineer, LCSB (University of Luxembourg)
> L-4362 Esch-sur-Alzette, Campus Belval, avenue des Hauts-Fourneaux 7
> Phone:  +352 466644 5609
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>
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>
>
> --
> Andrea Cristofori
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