Hi alessandra,
Our figures in http://pprc.qmul.ac.uk/~lloyd/gridpp/hs06.html were ten
percent off this morning, compared to the local APEL records. When I
went back a minute ago, they had changed, and are now close, giving a
good ratio of 0.981. Some lag in the system left accounting data out
until today. Perhaps it's manual?
Steve
Alessandra Forti wrote:
> PS May tables on the hs06 page [1] are outdated. I get
>
> 833,573*3600/2842460694=1.06 as a ratio between CPUApel and CPUAtlas
> for Manchester.
>
> The hs06 page reports 0.89.
>
> cheers
> alessandra
>
> [1] http://pprc.qmul.ac.uk/~lloyd/gridpp/hs06.html
>
>
> On 07/06/2011 09:55, Alessandra Forti wrote:
>> No, Steve,
>>
>> it doesn't drop 10%. It drops 28% (25% if we want to use APEL HS). We
>> have already discussed the fact that Atlas HS depends on the ration
>> of cpu hours between Apel and Atlas and if the measures in Apel are
>> not complete that affect HS-Atlas.
>>
>> HSAtlas= (CPUApel/CPUAtlas)*HS06.
>>
>> Which transforms your
>>
>> AnalysisHours*HSAtlas and ProdHours*HSAtlas in the orginal
>> AnalysisHoursFrac*HS06 and ProdHoursFrac*HS06
>>
>> so it is 28% you are removing especially because I'm moving all
>> production on the fastest CPUs.
>>
>> Atlas Kit and Hepspec are in line at 99% according to the papers
>> widely accepted measures.
>>
>> cheers
>> alessandra
>>
>>
>>
>> On 07/06/2011 09:47, Steve Lloyd wrote:
>>> Hi Alessandra,
>>> I'm proposing to use the ATLAS production cpu/event as the
>>> benchmark. In May switching from Apel to this would only make 10%
>>> change to Manchester (6.8 -> 6.2). This also solves the problem at
>>> Cambridge where there is no reliable Apel number. Although it was
>>> discussed to drop the CPU availability column there was no
>>> conclusion but investigations into Lancaster are still continuing.
>>> It may be revisited. The proposal was to cap at 20% but this was not
>>> agreed. Glasgow were above 20% but now QMUL has it's new disk up
>>> no-one is. We don't know the total money that will be spent so you
>>> can't translate this into £s.
>>> Cheers Steve
>>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>
>>> + Steve Lloyd Queen Mary, University of
>>> London +
>>> + E-mail: [log in to unmask] School of
>>> Physics +
>>> + Phone: +44-(0)20-7882-5057 Mile End
>>> Road +
>>> + Fax: +44-(0)20-8981-9465 London E1 4NS,
>>> UK +
>>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>
>>>
>>>
>>>
>>>
>>> On 7 Jun 2011, at 09:01, Alessandra Forti wrote:
>>>
>>>> Hi Steve,
>>>>
>>>> are we going to discuss this later at the ops meeting? Are you
>>>> using the Atlas Validation Kit [1] to take your measures? Most of
>>>> my objections depend on the fact that I don't trust the software
>>>> but if it was something recognised by WLCG and Hepix I might quiet
>>>> down even if Manchester CPU hours get cut down by 28% with this
>>>> change.
>>>>
>>>> There are other two points in the PMB minutes [2] that would be
>>>> interesting to discuss.
>>>>
>>>> 1) How likely it is that the cpu availability column will be
>>>> dropped and when will we know it?
>>>> 2) It seems a cap will be applied so that no site can get more than
>>>> £200k but the final number hasn't been decided yet. I'm not against
>>>> this but it'd be better to know it in advance.
>>>>
>>>> cheers
>>>> alessandra
>>>>
>>>> [1] http://tinyurl.com/65r2k2g
>>>> [2] http://www.gridpp.ac.uk/pmb/minutes/110531.txt
>>>>
>>>>
>>>> On 06/06/2011 22:51, Steve Lloyd wrote:
>>>>> Hi Peter,
>>>>> It looks like Apel hasn't updated yet for June. It seems to be
>>>>> somewhat sluggish. It's fine for previous months so it will
>>>>> probably be OK eventually. Anyway we're probably going to stop
>>>>> using it and use the Production HS06 anyway.
>>>>> Cheers
>>>>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>>>
>>>>> + Steve Lloyd Queen Mary, University
>>>>> of London +
>>>>> + E-mail:
>>>>> [log in to unmask]
>>>>> School of Physics +
>>>>> + Phone: +44-(0)20-7882-5057 Mile End
>>>>> Road +
>>>>> + Fax: +44-(0)20-8981-9465 London E1 4NS,
>>>>> UK +
>>>>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On 6 Jun 2011, at 15:07, Peter Grandi wrote:
>>>>>
>>>>>
>>>>>> In the usual metrics prototype page:
>>>>>>
>>>>>>
>>>>>> http://pprc.qmul.ac.uk/~lloyd/gridpp/metrics.html
>>>>>>
>>>>>>
>>>>>> Durham does not get points for production because the HS6 factor
>>>>>> for that is missing. Looking at the HS factor page:
>>>>>>
>>>>>>
>>>>>> http://pprc.qmul.ac.uk/~lloyd/gridpp/hs06.html
>>>>>>
>>>>>>
>>>>>> the BDII reported value is right, what is missing is the APEL
>>>>>> reported value for HS06. But the APEL reported CPU time is
>>>>>> there, so it is perplexing.
>>>>>>
>>>>>> Unless the APEL value that matters is that for analysis jobs
>>>>>> even for production CPU scaling, which is missing because we
>>>>>> don't do those (yet).
>>>>>>
>>>>>> Where can I look or what can I do?
>>>>>>
--
Steve Jones [log in to unmask]
System Administrator office: 220
High Energy Physics Division tel (int): 42334
Oliver Lodge Laboratory tel (ext): +44 (0)151 794 2334
University of Liverpool http://www.liv.ac.uk/physics/hep/
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