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The Australian High Energy Physics Data Grid: Supporting the ATLAS - - PowerPoint PPT Presentation

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The Australian High Energy Physics Data Grid: Supporting the ATLAS and Belle Experiments Glenn Moloney University of Melbourne ISGC Taiwan July 2004 Glenn Moloney The Australian High Energy Physics Data Grid ISGC Taiwan July 2004 1

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The Australian High Energy Physics Data Grid: Supporting the ATLAS and Belle Experiments

Glenn Moloney University of Melbourne

ISGC Taiwan July 2004 Glenn Moloney The Australian High Energy Physics Data Grid ISGC Taiwan July 2004 1

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Experimental High Energy Physics in Australia

Close collaboration between:

  • University of Melbourne
  • University of Sydney
  • Hold joint research grants (ARC)

Glenn Moloney The Australian High Energy Physics Data Grid ISGC Taiwan July 2004 2

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Experimental High Energy Physics in Australia

Close collaboration between:

  • University of Melbourne
  • University of Sydney
  • Hold joint research grants (ARC)

The Physicists:

  • 3 Academic Staff
  • 4 Research Fellows
  • 12 PhD Students
  • Technicians - Electronic, Mechanical
  • 2 Programmers

Glenn Moloney The Australian High Energy Physics Data Grid ISGC Taiwan July 2004 2

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Experimental High Energy Physics in Australia

Close collaboration between:

  • University of Melbourne
  • University of Sydney
  • Hold joint research grants (ARC)

The Physicists:

  • 3 Academic Staff
  • 4 Research Fellows
  • 12 PhD Students
  • Technicians - Electronic, Mechanical
  • 2 Programmers

Members of two major HEP experiments..

Glenn Moloney The Australian High Energy Physics Data Grid ISGC Taiwan July 2004 2

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The ATLAS experiment:

To investigate the origins of mass At the Large Hadron Collider, LHC.

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The BelleExperiment

  • To measure Charge–Parity symmetry violation in the decay of B mesons

3.5 GeV e− 8.0 GeV e+

Located in Tsukuba, Japan.

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Experimental High Energy Physics in Australia:

Atlas:

  • Members of the ATLAS collaboration since 1995
  • Contribution to the Silicon Charged Tracker (SCT):
  • Facilities in Melbourne/Sydney for assembly, wire-bonding and

testing of Silicon detector modules

  • Electon ID software
  • Participation in ATLAS Data Challenges

Belle:

  • Members of Belle since 1997
  • Assembly, wire-bonding and testing of Silicon Vertex Detector (SVD)

modules for SVD 1.1, 1.2, 1.5 and 2.0

  • Radiation monitoring (Wollongong University)
  • Development of Grid-based Belle Data Analysis

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Grid Computing Infrastructure in Australia

Network Infrastructure:

  • Australian Aacademic Research Network (AARNET)
  • GrangeNet: 10 gigabit research backbone connecting:
  • Melbourne, Canberra, Sydney, Brisbane
  • Commisioned early 2003

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Grid Computing Infrastructure in Australia

Network Infrastructure:

  • AARNET3:
  • Delivering 10 gigabit R&E network to the rest of Australia
  • Rolling out in 2004

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International Links to Australia

Planned upgrades to international research and education links

  • 10Gb to US
  • within 2 months
  • Gigabit to Japan
  • Later
  • 100Mb to Singapore
  • Installed now

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International Links to Australia

Speculation on the future:

  • Asia Pacific multi gigabit loop

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Computing Resources for HEP

We have access to shared linux cluster facilities at:

  • Australian Partnership for Advanced Computing

Canberra

  • 150 × 2.66 GHz Pentium 4
  • Petabyte capable mass data store
  • Victorian Partnership for Advanced Computing

Melbourne

  • 97 × dual 2.8 GHz Xeon
  • AC3

Sydney

  • 155 × dual 3.0 GHz Xeon
  • University of Melbourne

Melbourne

  • 48 × dual 2.4 GHz Xeon

These are all members of the Australian Partnership for Advanced Computing, APAC. A good candidate for an Australian National Grid infrastructure

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The Australian National Grid project

The Australian government has provided AU$29m for stage 2 of APAC: “Providing the advanced computing and grid infrastructure for eresearch”

  • $12.5m for upgrade of peak computing facility

Canberra

  • RFP issued June 30 2004
  • National grid infrastructure projects:
  • Computing infrastructure
  • Information infrastructure (data grid)
  • User Interface and Visualisation
  • Application support projects:
  • Astronomy
  • Computational chemistry
  • Theoretical and experimental high energy physics
  • LatticeGrid, ATLAS, Belle
  • Geosciences
  • Bioinformatics

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The Australian Experimental HEP Data Grid Team

Who are we?

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The Australian Experimental HEP Data Grid Team

Who are we?

  • Physicists:
  • Experimental Particle Physics:

University of Melbourne

  • Falkiner High Energy Physics:

University of Sydney

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The Australian Experimental HEP Data Grid Team

Who are we?

  • Physicists:
  • Experimental Particle Physics:

University of Melbourne

  • Falkiner High Energy Physics:

University of Sydney

  • High Performance Computing:
  • Australian Partnership for Advanced Computing (APAC)
  • University of Melbourne
  • Australian National University (Canberra)
  • Victorian Partnership for Advanced Computing (VPAC)

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The Australian Experimental HEP Data Grid Team

Who are we?

  • Physicists:
  • Experimental Particle Physics:

University of Melbourne

  • Falkiner High Energy Physics:

University of Sydney

  • High Performance Computing:
  • Australian Partnership for Advanced Computing (APAC)
  • University of Melbourne
  • Australian National University (Canberra)
  • Victorian Partnership for Advanced Computing (VPAC)
  • Computer Scientists:
  • GRIDS Lab:

University of Melbourne

  • Computer Science:

Adelaide University

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Australian Experimental HEP Grid Activities?

Atlas

  • Participate in ATLAS Data Challenges
  • Participate in the deployment of the LCG tools

across APAC grid facilities in Australia.

  • LCG-2 toolkit
  • ATLAS application layer.
  • Implement an LCG Tier 2 in Australia

Belle

  • Introducing Grid techniques to:
  • Belle physics analysis
  • Monte Carlo generation

Funded by Australian Research Council, APAC and VPAC.

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Participation in ATLAS data challenges:

  • Data challenges being run by Advanced Research Computing group at

University of Melbourne:

  • Dirk van der Knijff, Robert Sturrock
  • Melbourne is a member of Nordugrid!!

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Deployment of LCG on Australian Data Grid

We plan to deploy the LCG infrastructure across the APAC national grid:

  • Across APAC, AC3, VPAC and UoM partner facilities.
  • Supported by APAC information infrastructure project
  • Will be used for next round of ATLAS data challenges
  • Build expertise in LCG toolkit amongst Australian grid community
  • Demonstration for future deployment of ATLAS Tier 2 centre

We will also deploy the ATLAS analysis software across these facilities. Establishment of ATLAS Tier 2 data centre Australia plans to host a Tier 2 data centre for ATLAS:

  • We will ask APAC to host and manage the facility:
  • as a reserved chunk of the national facility
  • We will apply to funding body in 2004
  • Considering shared facility with New Zealand CMS.

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The Belle Experiment

Belle commenced taking data in 1999:

  • Accelerator luminosity has increased continually since then
  • World record luminosity: 1.39 × 1034 fb−1
  • Has accumulated a data set of ≈ 1 Petabyte
  • Data set is increasing by 500 Gigabytes per day

Proposed Belle upgrade

  • Upgrade to 1 × 1035 fb−1
  • Increase data rate ≈ 10 times.

Clear benefits from a Belle data grid

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Current Australian Belle Grid Activities

Australian Belle Data Grid Testbed:

  • “Simple” Data Grid tools could provide real

benefits for Belle physicists now:

  • Data Catalogue (Replica Catalogue)
  • Network-aware scheduler

Initially (3 years ago), we aimed to:

  • Use standard middleware products wherever possible
  • Develop simple tools to fill the gaps
  • Start real data analysis ASAP

. The Belle Analysis Software: BASF

  • Enable BASF to read and write Grid URIs directly
  • Able to stream data across network
  • A simple solution which reduces need to stage data

Lyle Winton

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Belle data analysis demonstration at SC2003

The Global Data-Intensive Grid Collaboration http://gridbus.cs.mu.oz.au/sc2003/

  • 1,000,000 events analysed using Grid-enabled BASF
  • Gridbus broker discovered the

catalogued data (lfn:/users/winton/fsimddks/*.mdst) and:

  • decomposed into 100 Grid

jobs

  • nodes in Australia and Japan.
  • Optimised job assignment to

minimise:

  • data transmission time and
  • computation time.

Completed in 20 minutes.

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Collaboration with Belle and KEK laboratory

  • Recent collaboration between:
  • University of Melbourne
  • Australian National University Supercomputing Facility
  • KEK Computing Research Centre
  • Belle collaboration
  • Aims to provide a distributed data management solution for Belle:
  • Use Storage Resource Broker (SRB) for Belle data management
  • Federation between SRB servers at KEK, ANU SF and Melbourne.
  • Distribution of input and output data for current Belle mass simulated

data production.

  • Utilising computing resources from APAC, VPAC, AC3, UoM, ANU SF

. Running Australian Belle data simulation production now.

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A Belle Analysis Data Grid

  • We will use the SRB federation as the base for grid based data

processing of Belle data.

  • Collaboration with Bristol UK e-science group:
  • GMCat — RLS interface
  • Development of SRB-aware grid scheduler.
  • Identify location of resources, replicas from SRB Mcat
  • Despatch jobs according to globus hosts according to static network

model.

  • First multi-site test underway now:
  • after resolving firewall problems.

We will use this system for future Belle data simulation and analysis in Australia

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Future of Australia HEP Data Grid

  • Deploy Belle Monte Carlo production across APAC national data grid
  • Stronger collaboration with Belle colleagues in:
  • KEK, Taiwan, Korea, . . .
  • Evaluate LCG toolkit for Belle data grid
  • Deploy LCG toolkit across APAC national data grid
  • Build partnership to establish LCG Tier 2 site in Australia:
  • collaboration with Japan and Taiwan Tier 1 sites
  • Continue to participate in ATLAS data challenges

Be ready for 2007!

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