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USQCD regional grid

Report to ILDG 16 04 March 2011. USQCD regional grid. Fermilab repository contains about 42,000 configurations in ILDG format (MILC asqtad and HISQ, LHPC Nf=2 anisotropic clover and RBC-UKQCD DW).

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USQCD regional grid

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  1. Report to ILDG 16 04 March 2011 USQCD regional grid

  2. ILDG-16 USQCD • Fermilab repository contains about 42,000 configurations in ILDG format (MILC asqtad and HISQ, LHPC Nf=2 anisotropic clover and RBC-UKQCD DW). • Configurations accessible to members of the “ILDG” VO (read only) and the “LQCD” VO (read/write). • Most consumers of the US lattices do not use the ILDG infrastructure. • US members of ILDG VO: 11, LQCD VO: 4 US Grid Usage

  3. ILDG-16 USQCD • Steady-state operations, no development • ILDG Metadata and file catalogs located at Jlab (B. Joo). • Single storage element is FermilabdCache / enstore tape system (J.S.). • Leverage 24x7 operations provided the experimental program • ILDG portalhttp://usqcd.jlab.org/mdc-web-client • Info page http://www.usqcd.org/ildg/ • Monitoring INCA? US infrastructure

  4. ILDG-16 USQCD Web portal for sharing gauge configs. • http://qcd.nersc.gov/ • Managed by J. Hetrick (MILC). • Gauge archive file format predating ILDG. • MILC ILDG files copied from FNAL (private now) • Site not yet integrated into ILDG • Work needed to modernize web site Part of NERSC “Science Gateway” project. http://www.nersc.gov/nusers/services/Grid/SG/sg.php Gauge Connection

  5. ILDG-16 USQCD US Funding and Staffing • Total direct US funding level for ILDG activities continues to be $0 • ILDG activities in US funded indirectly out of USQCD or lab budgets • Effort depends upon very small number of volunteers • SciDAC proposals do not mention ILDG and the program only funds software development • ILDG format derivative of SciDAC format

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