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Minutes29Oct2010 RAC Minutes, October 29, 2010


Members (*=present, #=apologies)

*Richard Mount, Kevin Black begin_of_the_skype_highlighting     end_of_the_skype_highlighting begin_of_the_skype_highlighting     end_of_the_skype_highlighting (Physics Forum Chair), *Jim Cochran (Analysis Support Manager), Alexei Klimentov (ATLAS ADC), Ian Hinchliffe (Physics Advisor), Rik Yoshida (Tier3 Coordinator), *Michael Ernst (U.S. Facilities Manager), Rob Gardner (Integration Coordinator), #Kaushik De, [apologies stuck in faculty meeting] (U.S. Operations Manager), Armen Vartapetian (U.S. Operations Deputy)

Ex-Officio: Torre Wenaus, Stephane Willocq, Mike Tuts, Howard Gordon

News from the USLUO (Jim)

Steve Meyers was now optimistic that well over 1fb-1 could be obtained in 2011. 5fb-1 was likely, two to three times more was not impossible. The impact on computing requirements had not yet been estimated.

Status of US Additional Production (Kaushik by email)

Ian's regional production is moving along. All evegen done. 40k simulation jobs finished. 7500 reco jobs. Not bad considering ATLAS needs every CPU it can get.

Summary of Operational issues (Michael)

Simulation: saturating all production resources.

Reprocessing: just starting today.

Analysis: waiting times are minimal for medium jobs. Larger jobs typically wait for 3 hours and then execute for 6 hours. Failure rates are ~2% thanks to PANDA.

Storage: considerable effort is being expended to ensure timely deletions. The central deletion approach (on its own) does not seem to be viable in the long term.

Data Distribution – Network Usage: about 75% of a 10 gbps link is used for a large fraction of each day to distribute data to T2s.

Large Memory Production Pilot

No progress so far.

AOB

None

Action Items

  1. 9/24/2010: Richard: Check with Chunhui Chen if the ESD should be saved in the QCD dijets production. DONE
  2. 9/24/2020: Kaushik: Organize the nature and timing of the effort to create an automated mechanism to give US-requested additional production priority access to US non-pledged resources. On hold - manual system works just fine for now
  3. 8/27/2010: Kaushik and Torre, Investigate the current state of the technology to route large memory jobs to the sites/queues prepared to execute them. Reported at this meeting to be ready but untested.
  4. 5/7/2010: Richard, Create a web page summarizing the dataset distribution policies for the US resources. _Overtaken by PD2P? _

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