1. LHC Computing Grid Status of Resources Financial Plan and Sue Foffano
CERN-RRB
LHC Computing Grid
Status of Resources
and
Financial Plan
Sue Foffano
IT Department, CERN
13th October 2009

2. Agenda WLCG MoU status Funding and expenditure for WLCG at CERN
estimates
Resource usage accounting
external Tier-1s and CERN
Tier-2s
Computing Resource Requirements and Pledges
Current pledge situation
Requirement/Pledge process – how to improve for the future?
Conclusions
Supporting information can be found in:
Written report (CERN-RRB )
WLCG web pages: Lcg.web.cern.ch/LCG
WLCG public pages: Lcg.web.cern.ch/LCG/public

3. WLCG MoU Signature Status
Brazil
Since the April 2009 C-RRB meeting, FAPESP, the Research Council for the State of São Paulo, Brazil, has signed the WLCG MoU supporting the CMS experiment on behalf of the Tier centers of the State
The Scientific and Technical Committee of the Brazilian Network on High Energy Physics - RENAFAE intend to coordinate the participation of all other Tier centers as a federation. Therefore, another WLCG MoU for all other Brazilian Tier centers will be signed by RENAFAE, as soon its legal board approves the document
Some other countries have expressed interest in becoming Tier-2 centers, follow-up is on-going and resulting MoU signatures will be reported on at future meetings

4. WLCG MoU Signature Status
Member States
Non-Member States
Austria
Australia
Belgium
Brazil
Czech Republic
Canada
Denmark
China
Finland
Estonia
France
India
Germany
Israel
Hungary
Japan
Italy
Korea
The Netherlands
Pakistan
Norway
Romania
Poland
Russia
Portugal
Slovenia
Spain
Taipei
Sweden
Turkey
Switzerland
Ukraine
United Kingdom
USA

5. WLCG Budget Estimates in MCHF 2009-2013

6. WLCG Funding and expenditure
Personnel expenditure in slide 5 is based on:
Current personnel commitments
Planned replacements
New requests waiting management approval
There is a risk of personnel overspend particularly in 2010 (EGEE-III end, new requests) with continued but reduced deficit from
Materials funding has changed significantly since the April C-RRB:
Original funding plan for the replacement Computer Centre spanned over 10 years
Strategy end 2008/early 2009 required compression of funding into 3 years ( )
New strategy under discussion which will impact timescale and new funding profile
Evolution on both personnel and materials funding and expenditure to be reported at next meeting

7. CERN and Tier-1 Accounting January 2009-August 2009

8. Accounting for CERN and the Tier-1s
Tier-1 reporting started in Monthly & annual reports available on WLCG website
The graphs on slide 7 show a summary of CPU, Disk and Tape Storage accounting for January-August 2009 for CERN and the Tier-1s
green line indicates installed capacity
pink dotted line indicates the pledged capacities
bars show the usage of the resource, colour-coded for each of the four experiments
Normally pledge values should have changed in April to those of 2009, however exceptionally it was agreed (WLCG MB) to revise the procurement and installation plan and move to 2009 pledges in September
Much installation work is currently ongoing and the monthly accounting reports will continue to be closely monitored

9. T2 Accounting August 2009 status

10. T2 Accounting August 2009 status

11. Accounting for Tier-2s
Since September 2007 monthly reports are produced, circulated for comment and published on the WLCG website
Slides 9 and 10 show the comparison of MoU pledge with CPU used for August 2009, ordered by pledge value
Graphs show globally CPU used is well above 100%
July 2009 : 180%
August 2009 : 190 %
September 2009 (draft report) : 201%
As for Tier1 sites, 2008 pledges being used until September 2009
Currently most of the 64 Tier-2 Federations are reporting accounting data over a total of 124 sites
Follow-up is ongoing with sites repeatedly showing no or low accounting performance to rectify this before data taking

12. Current Experiment Requirements and Computing Resource Pledges

13. Pledge collection exercise
Following LHCC and Scrutiny Group deliberations revised requirements were communicated to the sites on 08/09/09
Sites were asked to comment on their 2009 installations and confirm 2010 pledges – deadline 28/09/09 (already announced at April C-RRB) exceptionally no input required beyond 2010
By 21/09/09 little input received => reminder
By 28/09/09 input from some sites still missing (2 Tier-1s, 8 Tier-2s) and some input preliminary awaiting confirmation by official bodies
On 05/10/09 change signaled to the ATLAS T CPU requirement
On 07/10/09 preliminary resource tables published for C-RRB meeting

14. 2009 pledge installation status
Can be classified into 3 main categories
Installation complete or completion planned by end October
Installation has progressed well with a revised installation schedule agreed with the experiment(s) following publication of their revised requirements
Installation delayed for procurement reasons, currently on-going and planned to be complete in November or December 2009
2009 confirmed pledges remain unchanged (despite requests by some sites)
Confirmed pledges cannot be changed
Some sites already fully installed their 2009 pledge
Original pledges not fully installed signaled by accompanying note in Resource Tables
2009: an exceptional year resulting in a later change to 2009 pledge values for reporting

15. Preliminary Pledge Balance 2010
2010 pledges against latest requirements % balance
Status below that of 07/10/09 – will still change
Certain sites have signaled preliminary information waiting approval by official bodies:
T1: FZK (Germany), NDGF (Nordic Data Grid Facility)
T2: Norway, Sweden, Russia (2010 pledge confirmed, experiment split only available in December/January)
Since publication revised 2010 pledges received from US ATLAS Tier-2s, IN2P3 T1 & T2
Certain sites unhappy with the late ATLAS TI CPU change with respect to confirmed pledges submitted
2010
ALICE
ATLAS
CMS
LHCb
Sum 2010
T1 CPU
-9%
10% 6%
-5% 5%
T1 Disk
-40% 8%
-4%
17%
T1 Tape
-44%
18%
66%
-3%
T2 CPU
-25%
24%
-12%
T2 Disk
-72%
-31%
37% -
-22%

16. Requirements/Pledge process – how to improve ?
Final 2010 confirmed pledge tables only available in December/January following the relevant official meetings (should be approved at Autumn C-RRB)
Too late to improve for 2009, but we must improve in future
Proposed timescale:
Experiment requirements discussed and approved by LHCC & C-RSG bodies in February/March
Announced to Funding Agencies via April C-RRB meeting
Pledge input requested for end September including confirmed pledges for the following year and planned pledges beyond
Final tables approved at Autumn C-RRB meeting allowing more time for procurement cycle
Flexibility will be required for 2010 to allow enough data-taking to influence revised requirements

17. Conclusions
WLCG MoU: Brazil Tier-2 signed since April C-RRB, another federated Tier-2 expected in future. Follow-up on-going with other interested countries
WLCG Funding & Expenditure: some future over-spending estimated on personnel. Once replacement Computer Centre strategy finalised, materials funding and expenditure to be re-aligned accordingly
Monitoring ofTier-1 and Tier-2 accounting continues pledge values start after September. Follow-up on-going with Tier-2 sites with little/no accounting activity
Recent pledge collection exercise still not concluded
Special year, confirmed requirements communicated very late (+ one later change)
Definitive situation can only be published in December 2009 or January 2010
Process must change for the future to allow formal approval of pledge tables at Autumn C-RRB meeting