UK QCDgrid status

1
UK QCDgrid status

• data grid running across 6 UK sites
• ACF Edinburgh, Edinburgh, Liverpool, RAL,
  Southampton, Swansea
• Linux PC 10 TB RAID, based on Globus 2.4
• Large SAN connected to QCDOC partially integrated
  50 TB
• Using QDP/Chroma to convert QCDOC data
  (incomplete Nersc) to ILDG format

2
Software status

• QCDgrid1.4 is released
• Download from
• http//forge.nesc.ac.uk/projects/qcdgrid/
• Metadata handling for data submission
• Job submission
• Running on top of globus 2.4
• watching developments
• Globus 4
• EGEE middleware Glite

3
Metadata

• QCDml1.1
• UKQCD legacy data
• NP Clover
• QCDml1.3
• New data from QCDOC is being processed
• Metadata catalogue will be public
• Prototype web service (see G. Beckett)
• Static HTML document on ILDG pages lists Ensembles

4
Data sharing

• UKQCD data sharing policy
• conservative
• Data will not be available before six months
  after first publication.
• For specific data sets UKQCD may make special
  exceptions
• Ask us and we will probably collaborate on
  specific projects on specific data.

5
Dynamical DWF data

• Jointly produced with RBC
• Will be available as soon as papers available.
• Must cite three papers. (in prep)
• Light Hadron Physics in 21 Flavour DW QCD
• Localisation and chiral symmetry in 21 flavour
  domain wall QCD
• Comparing R and RHMC algorithms

6
Datasets
163x32 Ls8 RHMC a-1 1.5 2.2 GeV
7
In Production

• Production of DWF IW b2.13 (with RBC)
• mud/ms ¼, ½, ¾
• 243x64x16 and 163x32x16
• Production of improved staggered
• mud/ms1/5
• a0.125fm 243x64 30K traj
• a0.09 fm 323x96 20K traj
• a0.06 fm 483x144 2K traj
• Not available before 6 months after first paper