les robertson cernit 1

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LHC Computing Grid ProjectStatus

• HICB Toronto - 17 February 2002
• www.cern.ch/lcg

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The LHC Computing Grid Project
Goal Prepare and deploy the LHC computing
environment

• applications - tools, frameworks, environment,
  persistency
• computing system ? evolution of traditional
  services
• cluster ? automated fabric
• collaborating computer centres ? grid
• CERN-centric analysis ? global analysis
  environment
• foster collaboration, coherence of LHC
  regional computing centres
• central role of data challenges

This is not yet another grid technology project
it is a grid deployment project
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The LHC Computing Grid Project
Two phases

• Phase 1 2002-05
• Development and prototyping
• Approved by CERN Council 20 September 2001 as
  part of the labs base programme
• Funding at CERN includes special contributions
  from member and observer states, EU

assuming LHC starts in 2007

• Phase 2 2006-08
• Installation and operation of the full world-wide
  initial production Grid
• Costs at CERN (materials staff) included in the
  LHC cost to completion estimates

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Resources

• CERN personnel and materials (including those
  contributed by member and observer states)
• directly assigned, managed and reported by the
  project
• Experiment resources
• may be committed by experiments within agreed
  project plan (resources ? goals ? milestones)
• Regional centres
• commitments to take part in testbeds, data
  challenges
• national coordination or individual RCs?
• complex relationships between funding
  agency/physics institution/experiment/ Grid
  project/CERN
• agreements through MoU

Four components

• Computing Resource
• Review Board (RRB)
• funding agencies
• experiments
• CERN

• Grid projects
• suppliers of technology, programme set by funding
  agency
• major HEP investments
• long term maintenance of software, operations
  support unclear

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The LHC Computing Grid Project Structure
LHCC
Common Computing RRB (funding agencies)
Reviews
Resources
Reports
Project Overview Board
ProjectExecutionBoard
Software andComputingCommittee(SC2)
Requirements, Monitoring
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Project Overview Board

• Chair CERN Director for Scientific Computing
  Hans Hoffmann
• experiment spokespersons
• Representatives of countries/regions with Tier-1
  centres
• France, Germany, Italy, Japan, United Kingdom,
  USA
• 4 Representatives of countries/regions with
  Tier-2 centres from CERN Member States
• process for selecting these not yet clear
• ex officio IT Division Leader, SC2 chair,
  project leader
• First meeting mid March

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Software and Computing Committee (SC2)

• Sets requirements, approves the strategy,
  monitors progress
• Chair Matthias Kasemann (FNAL)
• 2 coordinators from each LHC experiment
• Technical Managers from centres in each region
  represented in the POB
• France Denis Linglin Germany Marcel
  KunzeItaly Federico Ruggieri Japan
  tbaUK John Gordon USA Lothar
  Bauerdick
• Ian Foster
• ex officio IT and EP division leaders, project
  manager
• www.cern.ch/lcg/sc2

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Project Execution Board

• Manages the resources, development and operation
  of the project
• Chair Project Leader Les Robertson
• Area managers
• applications Torre Wenaus
  regional centre strategy
  
  Mirco Mazzucatocomputing fabrics
  data challenges grid deployment
  Wolfgang von Rüden
  t.b.a. grid technology
  chief technical officer Fabrizio
  Gagliardi Dave
  Foster
• one delegate from each experiment ALICE
  Alberto Masoni ATLAS Gilbert Poulard,
  CMS Lucas Taylor LHCb
  Philippe Charpentier
• external members Tony Doyle GridPP
  Mirco Mazzucato - INFN Grid
  François Etienne - IN2P3 Grid Ruth Pordes -
  iVDGL/PPDG Miron Livny

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Requirements Specification

• Requirements Technical Assessment Group RTAG
• short-lived, small, focused study group to
  prepare recommendations for the SC2
• current RTAGs
• persistency
• software process tools
• maths libraries
• common Grid requirements

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Launching Workshop

• CERN March 11-15
• Goal Arrive at an agreement within the
  community of the main elements of a high level
  work-plan
• Define scope and priorities of the project
• Agree major priorities for next 15-18 months
• Develop coordination mechanisms
• Foster collaboration

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LCG Launch Workshop Agenda

• Monday 11 March pm Plenary -
• Status of computing in experiments, LCG, Overview
  of Grid projects, Regional Centres
• 4 serial half day working sessions
• Tuesday am Applications convenor
  John Harvey pm Fabrics
  convenor David Stickland
• Wednesday am Grid Technology - convenor
  Norman McCubbin pm Grid
  Deployment - convenor Federico Carminati
• Thursday am Plenary General talks by
  external Grid
  specialists pm joint
  SC2/PEB meeting to prepare conclusions
• Friday am Plenary Summaries, next
  steps
• Friday pm - POB

Please register no fee
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Collaboration

• Regional centres
• need to build collaboration at management and
  technical levels
• policies, security, accounting, reporting
• technology choices, operation
• coordinate and schedule programme of data
  challenges
• Grid projects
• HICB, HIJTB for agreement on common approaches,
  interoperability (e.g. GRIT)
• Can the grid projects take commitments for
  implementation, support, operation of a grid?

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Trans Atlantic Collaboration

• There are major computing grid investments on
  both sides national governments, EU, HEP
• Different styles for project, resource allocation
  
• US projects and resources through experiments
• Europe projects and resources through
  institutions - (INFN, IN2P3, ..), computing
  centres, national projects ?
  multi-experiment
• European Commission projects bias towards
  engineering, emphasis on deployment
• NSF bias towards research (or hardware
  infrastructure?)
• Sensitivity will be required by both sides

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A Few LCG Concerns

• incompatibility between short term Grid
  projects - generating technology
  for long term physics projects
• need to identify resources for long term
  development and support of middleware,
  infrastructure and operation and even
  during the testbed phase
• applications need simplicity
• simplified HEP applications layer, portal,
  services
• interoperability and compatibility of US
  European grids is a good first step but
  the real goal is a common set of Grid middleware