WLCG Collaboration Workshop (Tier0/Tier1/Tier2)

Europe/Zurich
Victoria, BC, Canada

Victoria, BC, Canada

co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
Description

For information on accommodation, registration or travel please see the CHEP 2007 link

Workshop focussing on service needs for initial data taking: commissioning, calibration and alignment, early physics.

Target audience: all active sites plus experiments

We start with a detailed update on the schedule and operation of the accelerator for 2007/2008, followed by similar sessions from each experiment.

The main thrust of this workshop will be to understand the status of the WLCG Services with respect to the 2007 / 2008 requirements, in particular the 'residual services' discussed at the January 2007 workshop.

  • SRM 2.2
  • Full FTS services
  • Distributed Database Services
  • gLite 3.x / SL(C)4 / 64bit
  • VOMS roles

We also review the status / plans of the Dress Rehearsals and initial running.

BOF sessions are foreseen in the following areas:

  • Monitoring
  • Data Management
  • Databases
  • Operations, including experiment / site / Grid operations

The capacities of the rooms are as follows:

  • Theatre - 400 seats
  • Sannich - 150
  • OakBay - 140
  • Esquimalt - 70
  • Sidney - 60
  • Saturday, 1 September
    • 09:00 09:15
      Workshop introduction & goals 15m
      • To understand the state of {site, experiment, service} readiness for data taking {cosmics, pp collisions} according to the current LHC schedule;
      • To identify the key outstanding issues and associated milestones;
      • To understand experiment activities {'dress rehearsals', cosmics runs in November/December 2007, March 2008, pp from Spring/Summer on}.
      Speaker: Jamie Shiers
      Slides
    • 09:15 09:30
      LHC status & timeline 15m
      Speaker: Maria Girone (CERN)
      Slides
    • 09:30 10:30
      WLCG Services - status of residual services and overall readiness - report from Grid Deployment Board (GDB) 1h Theatre

      Theatre

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      Speaker: John Gordon (CCLRC-RAL)
      Slides
    • 10:30 11:00
      coffee break 30m
    • 11:00 11:45
      Site Readiness - Panel Discussion 45m Theatre

      Theatre

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      Suggested topics to seed discussion:

      • State of hardware resources for startup compared with pledges. Longer term planning - readiness for future major expansion (2010 and beyond).
      • Tested readiness of magnetic tape infrastructure.
      • Tested readiness of site data management layer above the hardware including for full rate multi-VO operation.
      • Formal planning for 24 by 7 operations ready (including for staffing) and documented to the experiments and other sites.
      • Experiment local site support in place with clearly defined roles.
      • Other issues you would like to add/clarify/replace.
      Speakers: Harry Renshall, Jeremy Coles (RAL & GridPP) , Kors Bos (NIKHEF, CERN & ATLAS) , Luca dell'Agnello (CNAF & INFN) , Volker Guelzow (DESY)
    • 11:45 12:30
      Experiment Readiness - Panel discussion 45m Theatre

      Theatre

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      Readiness of experiment software frameworks and production systems with respect to various challenges / cosmics runs / initial data taking etc.
      Speakers: Andrea Sciaba (CERN & CMS) , Ian Fisk (FNAL & CMS) , Jan Fiete Grosse-Oetringhaus (ALICE) , Michael Ernst (BNL, ATLAS) , Patricia Mendez Lorenzo (CERN) , Philippe Charpentier (CERN & LHCb) , Simone Campana (CERN)
    • 12:30 13:30
      lunch break 1h
    • 13:30 15:30
      Data Management I BOF 2h Theatre

      Theatre

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>

      Experiences from sites/experiments operating the FTS servers

      Deployment of 'residual' (data management) services:

      • SRM v2.2
      • FTS 2.0, gFal, lcg_utils

      Where are we with respect to the plan established in July?

      Update on the schedule, status of testing, plans for immediate future, milestones etc.

      Speakers: Flavia Donno (CERN) , Jamie Shiers (CERN) , Philippe Charpentier (CERN)
      Introduction
      WLCG OSG Status and Plans
    • 13:30 15:30
      Experiment- / Site- / Region- Operations BOF 2h OakBay

      OakBay

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      Some suggestions raised at the WLCG Management Board are listed below:

      • I.Fisk asked for the correlation between “availability as seen via SAM” vs. the “real jobs success rates of the Experiments (via Crab, Ganga, etc)”.
      • H.Marten suggested that at the Operation Workshop at CHEP the sites should have the top 5 issues for each service.
      • I.Fisk also suggested a session for feedback from the sites to the developers, in order to improve the services and the software developed.
      • R.Tafirout suggested that sites should share solutions; sometimes the information is known by others but not easily accessible.

      Other topics:

      1. Results of review of CERN service deployment wrt resilience to glitches / common service interventions
      2. What do we need to operate the WLCG service for LHC data taking?
      3. Cross site problem determination
      4. Top middleware and operations issues
      5. Implications of migration to LSF 7
      Speakers: Michael Gronager (NDGF) , Nick Thackray, Rob Quick (OSG)
      inter-site issues
      LSF 7
      T0ServiceReview
    • 13:30 15:30
      User Support BOF 2h Sannich

      Sannich

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      The aim of the User Support BOF is to better understand what the VO expect from the WLCG/EGEE support infrastructure and how they interact with it, in order to improve the processes and workflows and to make the EGEE user support more helpful for the VO-users. This is a follow-up and continuation of the User Support Workshop held in Karlsruhe in March 2007. http://indico.cern.ch/conferenceDisplay.py?confId=11905 The latest developments in the EGEE/WLCG user support will be presented. Updates from the VOs about their support infrastructure are of course welcome.
      Speaker: Torsten Antoni (FZK)
    • 15:30 16:00
      coffee break 30m
    • 16:00 18:00
      Data Management II BOF 2h Theatre

      Theatre

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>

      Experience with site setup and configuration according to LHC experiments' requirements. Experience from early adopters / beta-testers from SRM v2.2 and related deployment.

      Speaker: Sites (FZK & others), dCache developers etc.
    • 16:00 18:00
      Database BOF 2h Sannich

      Sannich

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      Speakers: Dirk Duellmann, Gordon Brown (RAL) , Maria Girone
      Slides
    • 16:00 18:00
      Monitoring BOF 2h OakBay

      OakBay

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      Topics to cover: * Progress of WLCG Monitoring WG since last workshop * Demonstration of Nagios-based Prototype * SAM Availability calculation including equivalence of components across multiple grid infrastructure * Site Local vs. Central tests - what is a good balance? * Various job submission methods and job monitoring, monitoring of jobs submitted via condor_g
      Speakers: James Casey, Julia Andreeva, Ruth Pordes (FNAL & OSG)
  • Sunday, 2 September
    • 09:00 09:30
      ATLAS Dress Rehearsals - Status & Plans 30m Theatre

      Theatre

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      Speaker: Kors Bos (ATLAS / NIKHEF / CERN)
      Slides
    • 09:30 10:00
      CMS Dress Rehearsals - Status & Plans 30m Theatre

      Theatre

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      Speaker: Ian Fisk (FNAL)
      Slides
    • 10:00 10:30
      ALICE Dress Rehearsals - Status & Plans 30m Theatre

      Theatre

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      Speaker: Patricia Mendez Lorenzo (CERN)
      Slides
    • 10:30 11:00
      coffee break 30m
    • 11:00 11:30
      LHCb Dress Rehearsals - Status & Plans 30m Theatre

      Theatre

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      Speaker: Philippe Charpentier (CERN)
      Slides
    • 11:30 12:30
      Concurrent data export and archiving tests 1h
      We still need to show that we can write data to mass storage and export it to all Tier1s and the full nominal rates for all VOs concurrently.

      This session will discuss the requirements and schedule for such an exercise.

      ATLAS proposal
      CMS proposal for a Common Computing Readiness Challenge
      Draft Summary
    • 12:30 13:30
      lunch break 1h
    • 13:30 15:30
      ALICE session I 2h OakBay

      OakBay

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      • ALICE production & analysis on the Grid 20m
        Speaker: Mr Andreas Joachim Peters (CERN)
      • Storage Solutions in ALICE 20m
        Speaker: Mr Andreas Joachim Peters (CERN)
      • PROOF in ALICE - The CERN Analysis Facility 20m
        Speaker: Jan Fiete Grosse-Oetringhaus (Westfalische Wilhelms-Universitat Munster)
        Slides
      • Monitoring in ALICE 20m
        Speaker: Costin Grigoras (Unknown)
      • The SAM architecture 20m
        Speaker: Dr Patricia Mendez Lorenzo (CERN IT/GD)
        Slides
      • Calibration Framework in ALICE 20m
        Speaker: Jan Fiete Grosse-Oetringhaus (Westfalische Wilhelms-Universitat Munster)
        Slides
      • Analysis at GSI 20m
        Speaker: Dr Kilian Schwarz (GSI)
        Slides
      • Discussion about Full Dress Rehearsal 20m
        Speaker: Dr Patricia Mendez Lorenzo (CERN IT/GD)
    • 13:30 15:30
      ATLAS Session I 2h Theatre

      Theatre

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      • The ATLAS Grid monitoring dashboard 1h
        Speaker: Ricardo Rocha (CERN)
      • The ATLAS data production workflow 1h
        Speaker: Xavier Espinal (PIC)
        EGEEOperationsWiki
        EGEEProductionMonitoring
        NewProductionDashboard
        Slides
    • 13:30 15:30
      CMS Session I 2h Sannich

      Sannich

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
    • 13:30 15:30
      LHCb session I 2h Sidney

      Sidney

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      Topics to be discussed:

      • Storage
        • plans for disk capacity (TapeXDisk1 storage class and disk cache)
        • plans for technology migration
      • Agreement on generic agent policy document: Tier1 sites position
      • LFC read-only instance (status)
    • 15:30 16:00
      coffee break 30m
    • 16:00 17:30
      ALICE session II 1h 30m OakBay

      OakBay

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
    • 16:00 17:30
      ATLAS session II 1h 30m Theatre

      Theatre

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      • ATLAS data management operations 1h 30m
        Speaker: Alexei Kilmentov (BNL)
        Poster
        Slides
    • 16:00 17:30
      CMS Session II 1h 30m Sannich

      Sannich

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      • Network Commissioning and Debugging 30m
        Speaker: James Letts
        Slides
      • Site Monitoring and Diagnosis Tools 30m
        Speaker: Andrea Sciaba
        Slides
    • 16:00 17:30
      LHCb session II 1h 30m Sidney

      Sidney

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      See the topics listed in session I
    • 17:30 17:45
      Workshop wrap-up 15m Theatre

      Theatre

      Victoria, BC, Canada

      co-located with <a href="http://www.chep2007.com/">CHEP 2007</a>
      Speaker: Jamie Shiers (CERN)
      CHEP presentation