2 LCG Agenda WLCG MoU signature status Tier-1 and Tier-2 Accounting Revised capacity pledges Resources Scrutiny Group Summary
3 LCG WLCG MoU Signature Status Signatures now received for all Tier-1 federations except NDGF for which 4 signatures are required: Denmark and Finland: signatures obtained Norway: information sent 22/10/07, awaiting reply Sweden: intention to sign signaled 12/11/07, awaiting reply on pledge information to prepare and send Signatures for the Tier-2 federations are progressing with recent additions including: Estonia (CMS), Finland (CMS), Korea (ALICE) fully signed Austria (ATLAS, CMS), Germany (ATLAS), Hungary (ALICE & CMS) in the signature process Brazil (ALICE, ATLAS, CMS, LHCb) and Turkey (ATLAS & CMS) under discussion. Imminent ?
4 LCG Tier-1 Accounting
5 LCG Tier-1 Accounting The graphs on slide 4 show a summary of CPU, Disk and Tape Storage accounting from September 2006 to September 2007 for Tier-1s and CERN. How to interpret the graphs: green bars show the usage of the resource, summing up all four experiments red lines indicate installed capacity blue dotted lines indicate the pledged capacities Despite the increase in installed capacity the MoU pledge levels are not reached for disk and CPU. It becomes urgent: that 2007 commitments are fully honoured that 2008 commitments are installed and fully in production by April 2008
6 LCG Tier-2 Accounting Information campaign in June amongst the Tier-2 federations informing them formal reporting of CPU usage would begin from September 2007 onwards on a monthly basis. Test reporting took place in July and August to: give sites an opportunity to see what their data looked like in a global context help sites who were not reporting data to the accounting portal to do so Of the 54 federations asked to identify sites to participate in the reporting, 4 have not yet provided this information: Finland, Norway, Sweden, Ukraine Of the 50 federations who provided the information: 113 sites were identified of which: 94 reported accounting data in September 101 reported accounting data in October
7 LCG Tier-2 Accounting The first 2 reports of data for September and October are available on the LCG web site giving details of the breakdown by federation.September October Globally 48% of the pledged CPU was delivered in September, and 55% in October. Work is still required to identify remaining sites, and ensure that all sites report data federations who have not yet identified sites have been urgently requested to do so
LCG 8 Tier-2 Accounting – October 2007 30 sites deliver 75% of the cpu 30 sites deliver 1%
LCG 9 Revised Capacity Pledges The 4 LHC experiments were asked to revise and update their computing requirements for for July 2007 received from ATLAS in July received from ALICE, CMS and LHCb late summer In accordance with the MoU Tier-1 and Tier-2 federations were asked to: confirm their pledge values for 2008 provide values for inclusive A majority of federations have not yet responded (initial deadline 28/09/07): Tier-1s: 5/11 have responded Tier-2s: 24/54 have responded Pledge Tables including these responses available on LCG web Pledge Tables From the data received so far, many pledge values for 2011 and 2012 remain as for This is a major cause for concern, as if this trend continues there will be major discrepancies between rising requirements and pledges which do not rise as expected.
LCG 10 Revised Capacity Pledges 2008 The table below shows the picture as we know it for 2008 from the responses received from the Tier-1 and Tier-2 federations. The following data have been used: Where a new pledge value was provided => new pledge Where no information provided => old pledge % indicates the balance between offered and required. New pledge values will change the picture…better or worse ?
LCG 11 Revised Capacity Pledges The table below shows the picture as we know it for from the responses received from the Tier-1 and Tier-2 federations. The following data have been used: Where new pledge values were provided => new pledges Where no information => last existing value reused % indicates the balance between offered and required. A very pessimistic picture emerges.
LCG 12 Requirements v’s Pledges for Tier-1s
LCG 13 Requirements v’s Pledges for Tier-2s
LCG 14 Revised Capacity Pledges It becomes urgent that all remaining federations reply as soon as possible : confirming or updating their pledge for 2008 providing pledges for a new deadline of 30/11/07 was given at the C-RRB Federations should plan to renew their computing resources in the future to enable increased pledges to be guaranteed.
LCG 15 Resources Scrutiny Group Defined in Article 7 and Annexe 9 of the WLCG MoU, the RSG has now been set up. A first meeting is expected to take place before end 2007 (10 th December 2007). Members: William Trischuk - Canada Cristinel Diaconu - France Holger Marten - Germany Concezio Bozzi - Italy Domenec Espriu - Spain David Groep - The Netherlands Albert Lazzarini- USA Brian Vinter - Nordic Grid Jonathan Flynn - United Kingdom Jurgen Knobloch – CERN Harry Renshall – Scientific Secretary
16 LCG Summary WLCG MoU signature status: Remaining NDGF signatures from Norway and Sweden needed to complete process for all Tier-1s Follow-up of remaining Tier-2 signatures required Tier-1 Accounting: 2007 commitments must be fully honoured and 2008 commitments must be installed and running in production by April 2008 Tier-2 Accounting: Remaining Tier-2 sites must be identified and certain sites to be followed-up to initiate reporting and/or honour their commitments Revised Capacity pledges: Complete the pledge table picture following 30/11/07 Publish a new set of updated resource tables hopefully confirming improved trends Resources Scrutiny Group Established and will start-up 10/12/07 ready for 2008 Accounting reports and resource tables available from the planning pages of the LCG site: