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 Flavors fermion/ gluon action Collaborationa(fm) approx #configs Availability 0Tadpole LWAdelaide0.128400 Available 2 FLIC’/ Tadpole LW Adelaide0.125400 x ? In production

10. Europe/LatFor

11. LatFor available/planned Flavors fermion/ gluon action Collaboration a (fm) approx #configs Availability 2 NP-clover/ Wilson plaq QCDSF0.07/0.115000x16Negotiable 2 tmQCD/ tlSym ETMC0.07/0.113500x15Negotiable 2+1 stout/ Tadpole LW QCDSF0.08?In progress 2+1+1 Stouted tmQCD/ tlSymETMC ???Planned

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

13. JLDG available/planned flavors fermion/ gluon action collaborationa(fm) approx #configs availability 2 Wilson-clover/ Iwasaki CP-PACS 0.201000x4 available 0.151000x4 0.10800x4 2 Wilson-clover/ Plaquette JLQCD0.101200x5in preparation 2+1 Wilson-clover/ Iwasaki CP-PACS+JLQCD 0.12800x5x2 available (New) 0.10800x5x2 0.07600x5x2 2 overlap/ Iwasaki JLQCD0.12O(500)x6 after 1st paper on spectrum

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

15. UK/DiGS/BNL available/planned Flavors fermion/ gluon action Collaborationa(fm) approx #configs Availability 2+1 DWF/ Iwasaki UKQCD/RBC0.12800x4Available 2+1 DWF/ DBW2 UKQCD/RBC0.12 300- 1000 Available 2 DWF/ DBW2 UKQCD/RBC0.121000x3Available 2+1 Asqtad/ Tadpole LW UKQCD0.123000Available 2+1 DWF/ Iwasaki UKQCD/RBC0.09??Restricted 2+1 DWF/ Iwasaki UKQCD/RBC0.09?? X 2 In production

16. US/NERSC/FNAL/JLab available/planned Flavors fermion/ gluon action Collaborationa(fm) approx #configs Availability 2+1 Asqtad/ tadpole LW MILC0.15600 x 4Available 2+1 Asqtad/ tadpole LW MILC 0.12600 x 5Available* 2+1 Asqtad/ tadpole LW MILC 0.09 500 x 2 500 x 1 New Available* 2+1 Asqtad/ tadpole LW MILC0.06500 x 2 In production Available 2+1 Anisotropic clover/?? LHPC0.125?? X 4Planned 2+1 Anisotropic clover/?? LHPC0.10?? X 4Planned 2+1 Anisotropic clover/?? LHPC0.08?? X 4Planned *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/http://cssm.sasr.edu.au/ildg/ LatFOR http://www-zeuthen.desy.de/latfor/ NERSC http://qcd.nersc.gov/http://qcd.nersc.gov/ DiGS http://forge.nesc.ac.uk/projects/qcdgrid/http://forge.nesc.ac.uk/projects/qcdgrid/ BNL https://qcdlattices.bnl.gov/ JLGD http://www.jldg.org/lqa/index.htmlhttp://www.jldg.org/lqa/index.html QCDml http://www.lqcd.org/ildg/