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WLCG Workshop 2017

→ Europe/London
University of Manchester

University of Manchester

Physics Schuster Building Brunswick street, Manchester, UK <a href="http://tinyurl.com/kuekn6u">Map</a>
Description

WLCG workshop in Manchester will cover with some in depth discussion medium term plans and long term developments with particular focus on cooperation with Astronomers in particular with SKA which has a strong presence in Manchester. The workshop will start at lunchtime on Monday June 19th. The main workshop will end on Wednesday afternoon. On Thursday June 22nd there will be an IPv6 workshop, including hands on training. On Thursday afternoon there will be a tour of Jodrell Bank Observatory (JBO - http://www.jodrellbank.net/) for up to 30 people (who register first).

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Participants
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  • Monday 19 June
    • 12:30 → 13:00
      Registration
    • 13:00 → 13:30
      Introduction
    • 13:30 → 15:00
      Medium term evolution - Compute

      TOPICS BEING CONSIDERED

      • General review of compute models and commonalities of the LHC experiments. Input from Community White Paper ongoing work.

      • Square Kilometre Array (SKA) Compute model - opportunities for common work

      • Lightweight site review for Compute

      • Mid-SLA compute - running on disk-servers - is there a place for pre-emption in our models to help us make better use of resources?

      • External clouds: how can we make more use of them? Where do they fit in our models? What should we do there? How to procure/access them (via traditional sites or directly)?

      • Use of containers (Singularity / Docker). Operational perspectives.

        • Replace glExec
        • Input to kick-off Container WG.
        • ..merging to security session on containers afterwards.
      Convener: Gavin McCance (CERN)
    • 15:00 → 15:30
      Coffee 30m
    • 15:30 → 16:30
      Medium term evolution - Compute: Medium term evolution - Compute (continuation)

      TOPICS BEING CONSIDERED

      • General review of compute models and commonalities of the LHC experiments. Input from Community White Paper ongoing work.

      • Square Kilometre Array (SKA) Compute model - opportunities for common work

      • Lightweight site review for Compute

      • Mid-SLA compute - running on disk-servers - is there a place for pre-emption in our models to help us make better use of resources?

      • External clouds: how can we make more use of them? Where do they fit in our models? What should we do there? How to procure/access them (via traditional sites or directly)?

      • Use of containers (Singularity / Docker). Operational perspectives.

        • Replace glExec
        • Input to kick-off Container WG.
        • ..merging to security session on containers afterwards.
      Convener: Gavin McCance (CERN)
    • 16:30 → 17:35
      Medium term evolution - Security and trust

      Topics to include:
      Singularity
      Collaboration between security teams
      Ongoing work

      Convener: David Crooks (University of Glasgow (GB))
      • 16:30
        Security update [slides for all talks] 5m
        Speakers: Liviu Valsan (CERN), Romain Wartel (CERN), Vincent Brillault (CERN)
        201706 Wartel Brillault Valsan WLCG WS.pdf
      • 16:35
        Singularity 15m
        Speakers: Liviu Valsan (CERN), Vincent Brillault (CERN)
      • 16:50
        Collaboration between security teams 20m
        Speaker: Romain Wartel (CERN)
      • 17:10
        Ongoing work 20m
        Speaker: Liviu Valsan (CERN)
    • 19:30 → 21:30
      Reception 2h
  • Tuesday 20 June
    • 09:00 → 10:30
      Medium term evolution - Data
      Convener: Oliver Keeble (CERN)
      • 09:00
        Overview & report from Data Steering Group 15m
        Speaker: Oliver Keeble (CERN)
        Steering.pdf
        Steering.pptx
      • 09:15
        Discussion 15m
      • 09:30
        Storage resource reporting 10m
        Speaker: Oliver Keeble (CERN)
        ResRep.pdf
        ResRep.pptx
      • 09:40
        Discussion 20m
      • 10:00
        Object stores 10m
        Speaker: Alastair Dewhurst (STFC - Rutherford Appleton Lab. (GB))
        WLCGObjectStores20170620.pdf
      • 10:10
        Discussion 20m
    • 10:30 → 11:00
      Coffee 30m
    • 11:00 → 12:30
      Medium term evolution - Data: Medium term evolution - Data (continuation)
      Convener: Oliver Keeble (CERN)
    • 12:30 → 13:30
      Lunch 1h
    • 13:30 → 15:30
      Medium term evolution - Network: WLCG Network Requirements

      We will have a networking session to present-on and discuss medium term networking areas for WLCG (3-5 year time frame). This will include a presentation from SKA about their networking requirements and potential areas for mutual effort, the status and plans for network monitoring and analytics, a set of brief presentations on the experiments requirements and a concluding discussion session covering the needs of the experiments for network monitoring and diagnosis which can also serve as input for finalizing the community white paper to ensure it includes networking needs from WLCG.

      Conveners: Shawn Mc Kee (University of Michigan (US)), Tony Cass (CERN)
    • 15:30 → 16:00
      Coffee 30m
    • 16:00 → 17:30
      Efficiency and cost

      Short introductions to three related topics with sufficient room for discussions

      Convener: Markus Schulz (CERN)
      Intro.pdf
      Intro.pptx
      • 16:00
        Cost Models 30m

        To be able to predict the needs of computing and to understand which type of resources contribute to the overall costs, several models have been developed and are in use. Can we build models based on a common approach between the experiments and to what detail do we need to go? Short presentation followed by a discussion.

        Speaker: Jose Flix Molina (Centro de Investigaciones Energéti cas Medioambientales y Tecno)
        WLCG_Costs_Models.pdf
      • 16:30
        Bringing improvements into production 30m

        In our community we often observe a significant latency between the proof of concept of an improvement and the exploitation in production, while we often react to emergencies swiftly. Do we understand the underlying causes and what could be done to benefit more timely from improvements? Short presentation followed by a lively discussion.

        Speaker: Johannes Elmsheuser (Brookhaven National Laboratory (US))
        m_200617.pdf
      • 17:00
        Exchanging and disseminating knowledge 30m

        In many places, conferences, summer schools, workshops over many years findings on performance and efficiency are presented and techniques and tools are taught. There is a lot of knowledge and experience in our community, however this knowledge is fragmented and often web searches are the way to connect these sources. To achieve the improvements to successfully face the HL-LHC challenges this knowledge needs to more easily accessible and made usable for contributors at all levels. How can we achieve this? Very short presentation followed by a discussion and hopefully a seed for a plan.

        Speaker: Markus Schulz (CERN)
        20170620-WLCGWorkshop-LHCbOptimization.pdf
        SharingAndTeaching.pdf
        SharingAndTeaching.pptx
    • 19:30 → 22:30
      Conference Dinner 3h
  • Wednesday 21 June
    • 09:30 → 11:00
      Collaboration board

      Rutherford lecture theatre

      Convener: Roger Jones (Lancaster University (GB))
      • 09:30
        Project Leader's report 20m
        Speaker: Ian Bird (CERN)
      • 09:50
        Update on HNSciCloud 10m
      • 10:00
        The Scientific Computing Forum 10m
      • 10:10
        Relationship with other proejcts, including SKA 20m
    • 09:30 → 11:00
      Discussion with Astronomers

      Moseley room

      Convener: Anna Scaife (University of Manchester)
    • 11:00 → 12:30
      Operational tools, benchmarking, accounting, monitoring, etc...: Benchmarking discussion
      Conveners: Domenico Giordano (CERN), Jose Flix Molina (Centro de Investigaciones Energéti cas Medioambientales y Tecno)
      • 11:00
        Status report from Benchmarking Working Group 40m
        Speaker: Domenico Giordano (CERN)
        WLCG_Workshop_2017_benchmarking_giordano.pdf
      • 11:40
        Benchmarking discussion (with panellists) 50m
        Speakers: Alessandra Forti (University of Manchester (GB)), Andrew McNab (University of Manchester), Betev Latchezar (CERN), Jose Flix Molina (Centro de Investigaciones Energéti cas Medioambientales y Tecno), Manfred Alef (Karlsruhe Institute of Technology (KIT))
        WLCG_Workshop_2017_benchmarking_survey.pdf
    • 12:30 → 13:30
      Lunch 1h
    • 13:30 → 14:30
      Operational tools, benchmarking, accounting, monitoring, etc...: Monitoring
      Conveners: Alberto Aimar (CERN), Jose Flix Molina (Centro de Investigaciones Energéti cas Medioambientales y Tecno)
    • 14:30 → 15:30
      Operational tools, benchmarking, accounting, monitoring, etc...: IS evolution and storage space accounting
      Conveners: Jose Flix Molina (Centro de Investigaciones Energéti cas Medioambientales y Tecno), Julia Andreeva (CERN)
    • 15:30 → 16:00
      Coffee 30m
    • 16:00 → 18:00
      Introduction: IPv6 Introduction
      Conveners: Andrea Sciaba (CERN), Dave Kelsey (STFC - Rutherford Appleton Lab. (GB))
  • Thursday 22 June
    • 09:00 → 10:30
      IPv6 Tutorial
      Conveners: Andrea Sciaba (CERN), Dave Kelsey (STFC - Rutherford Appleton Lab. (GB))
      • 09:00
        Preliminary steps 15m
        Speaker: Mr Terry Froy (Queen Mary University of London)
        20170621-wlcg-preliminarysteps.pdf
      • 09:15
        Data transfer exercise 1h
        Speaker: Ulf Bobson Severin Tigerstedt (Helsinki Institute of Physics (FI))
        foo.pdf
      • 10:15
        perfSonar exercise (installation) 15m
        Speaker: Duncan Rand (Imperial College (GB))
        WLCG IPv6 training: perfSONAR
    • 10:30 → 11:00
      Coffee
    • 11:00 → 12:30
      IPv6 Tutorial

      Part 2

      Conveners: Andrea Sciaba (CERN), Dave Kelsey (STFC - Rutherford Appleton Lab. (GB))
    • 12:30 → 13:30
      Lunch 1h
    • 13:30 → 17:30
      Visit to Jodrell Bank
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