Hi Marcus,
On 01/11/2016 08:16, Marcus Ebert wrote:
> Hi Alessandra,
>
> On Mon, 31 Oct 2016, Alessandra Forti wrote:
>
>> Hi Steve,
>>
>> On 31/10/2016 14:47, Stephen Jones wrote:
>>> Hi Alessandra,
>>>
>>> I have a couple of questions before I do the numbers for this.
>>>
>>> > > > > json file with the numbers for the month contained in the
>>> Status
>>> > > field the elements of the array of numbers are: HS06 on the
>>> > > atlas dashboard, HS06 in APEL, ratio, wallclock in ATLAS,
>>> > > wallclock in APEL, wallclock ratio.
>>>
>>> Would you please expand on the meaning of these fields (HS06 measures
>>> Power, not Work; pls. see other (long) thread!?!)
>>>
>>> * HS06 on the atlas dashboard - I assume we mean "CPU Work" (in HS06
>>> Hours) And how was this measured by ATLAS?
>>>
>> no, we measure everything in wallclock now. So in the new terminology
>> it would be "wallclock work". The numbers in the SSB are obtained
>> multiplying the "Delivered power" by the number of hours in the month
>> for each month. The delivered power is in the atlas dashboard and is
>> calculated the opposite way dividing the wallclock work measured in
>> the dashboard by the number of hours in the month (I know its
>> confusing).
>>> * HS06 in APEL - I assume we mean "CPU Work" (in HS06 Hours) as
>>> measured
>>> at the site. Please confirm.
>>>
> I'm not sure if I understand it or if it makes sense that way:
> Basically what you are saying is that the initial number values
> "HS06 on the atlas dashboard, HS06 in APEL, ratio, wallclock in ATLAS,
> wallclock in APEL, wallclock ratio"
> are really
> "wallclock work in the Atlas, wallclock work in APEL, ratio, wallclock
> work in Atlas (unscaled), wallclock work in APEL (maybe scaled)",
> isn't it?
the fields are
ATLAS wallclock work (HS06*hours), APEL wallclock work (HS06*hours),
ratio, ATLAS wallclock (hours), APEL wallclock (hours maybe internally
scale), ratio
so the naked wallclock at sites that internally scale is not a good
measure to see if the publishing is wrong.
cheers
alessandra
> If so, why is there a difference between the first and forth value
> (2nd and 6th)?
>
> Also, wouldn't there automatically be a difference between the APEL
> values and the Atlas ones, if a site runs (mainly) jobs for other LHC
> experiments and/or uses different CPUs/HT settings in the batch farm
> machines?
>
>
> Cheers,
> Marcus
>
--
Respect is a rational process. \\//
Fatti non foste a viver come bruti (Dante)
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