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Sharing Lattices Throughout the World: An ILDG Status Report

Sharing Lattices Throughout the World: An ILDG Status Report. ILDG July 31, 2007. A consortium of regional grids. Australia (CSSM) Europe (LatFOR) (Austria, Switzerland, Germany, France, Italy) Japan (JLDG) UK (DiGS/QCDgrid) US (Gauge Connection + FNAL + BNL + JLab).

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Sharing Lattices Throughout the World: An ILDG Status Report

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  1. Sharing Lattices Throughout the World: An ILDG Status Report ILDG July 31, 2007

  2. A consortium of regional grids • Australia (CSSM) • Europe (LatFOR) (Austria, Switzerland, Germany, France, Italy) • Japan (JLDG) • UK (DiGS/QCDgrid) • US (Gauge Connection + FNAL + BNL + JLab)

  3. Purpose • Facilitate the world-wide sharing of files (currently gauge configurations) to speed scientific discovery. • For some, a convenient collaboration repository, as well.

  4. Spectrum of Access Policies • All lattices available as soon as they are generated – (some collaborations) • Recent lattices available after negotiation. (most collaborations) • All lattices available ~ six months after the first publication (universal) • Citation and acknowledgment (universal) • Trend is toward increasing accessibility

  5. Files • QCDml document for each ensemble • Lattice binary for each configuration • LIME format – reasonably flexible • QCDml document for each configuration

  6. Standard Mode of Access • Browse (search) the ensemble metadata to select the desired ensemble • List the desired lattices • Download the lattice files • Involves grid certificates for authentication • See live demonstration • Dirk Pleiter poster session.

  7. ILDG Working Groups • Metadata working group • Standards for QCDml (XML) markup schema to annotate the files. (Also binary file format.) • See T. Yoshie’s poster. • Middleware working group • Standards for file transfers (catalogs, grid tools, etc.)

  8. Highlights of What is Available • Apologies. My own biased selection based on a cursory inquiry. • Just an overview. No attempt at exhaustive detail. • I will try to point out what has been opened to general access in the past year.

  9. Australia/CSSM available/planned

  10. Europe/LatFor

  11. LatFor available/planned

  12. ILDG Kanazawa Tsukuba Hiroshima KEK Kyoto Osaka Japan/JLDG

  13. JLDG available/planned

  14. UK/DiGS (UKQCD)/BNL(RBC)

  15. UK/DiGS/BNL available/planned

  16. US/NERSC/FNAL/JLab available/planned *Extensions underway

  17. Conclusions • The ILDG is up and working (mostly) • See the ILDG demonstration during the poster session

  18. Websites • CSSM http://cssm.sasr.edu.au/ildg/ • LatFOR http://www-zeuthen.desy.de/latfor/ • NERSC http://qcd.nersc.gov/ • DiGS http://forge.nesc.ac.uk/projects/qcdgrid/ • BNL https://qcdlattices.bnl.gov/ • JLGD http://www.jldg.org/lqa/index.html • QCDml http://www.lqcd.org/ildg/

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