USQCD regional gridUSQCD regional grid

Report to ILDG 16Report to ILDG 16

04 March 201104 March 2011

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US Grid UsageUS Grid Usage Fermilab repository contains about 42,000 Fermilab repository contains about 42,000

configurations in ILDG format (MILC asqtad configurations in ILDG format (MILC asqtad and HISQ, LHPC Nf=2 anisotropic clover and HISQ, LHPC Nf=2 anisotropic clover and RBC-UKQCD DW).and RBC-UKQCD DW).

Configurations accessible to members of Configurations accessible to members of the “ILDG” VO (read only) and the “LQCD” the “ILDG” VO (read only) and the “LQCD” VO (read/write).VO (read/write).

Most consumers of the US lattices do not Most consumers of the US lattices do not use the ILDG infrastructure.use the ILDG infrastructure. US members of ILDG VO: 11, LQCD VO: 4US members of ILDG VO: 11, LQCD VO: 4

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US infrastructureUS infrastructure• Steady-state operations, no developmentSteady-state operations, no development• ILDG Metadata and file catalogs located at ILDG Metadata and file catalogs located at

Jlab (B. Joo).Jlab (B. Joo).• Single storage element is Fermilab Single storage element is Fermilab

dCache / enstore tape system (J.S.).dCache / enstore tape system (J.S.).• Leverage 24x7 operations provided the Leverage 24x7 operations provided the

experimental programexperimental program

• ILDG portalILDG portal http://usqcd.jlab.org/mdc-web-http://usqcd.jlab.org/mdc-web-clientclient

• Info page Info page http://www.usqcd.org/ildg/http://www.usqcd.org/ildg/• Monitoring Monitoring INCA?INCA?

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Gauge ConnectionGauge ConnectionWeb portal for sharing gauge configs.Web portal for sharing gauge configs.• http://qcd.nersc.gov/http://qcd.nersc.gov/• Managed by J. Hetrick (MILC).Managed by J. Hetrick (MILC).• Gauge archive file format predating ILDG.Gauge archive file format predating ILDG.• MILC ILDG files copied from FNAL (private MILC ILDG files copied from FNAL (private

now)now)• Site not yet integrated into ILDGSite not yet integrated into ILDG• Work needed to modernize web siteWork needed to modernize web sitePart of NERSC “Science Gateway” project.Part of NERSC “Science Gateway” project.http://www.nersc.gov/nusers/services/Grid/SG/sg.phphttp://www.nersc.gov/nusers/services/Grid/SG/sg.php

US Funding and StaffingUS Funding and Staffing• Total direct US funding level for ILDG Total direct US funding level for ILDG

activities continues to be $0activities continues to be $0

• ILDG activities in US funded indirectly out ILDG activities in US funded indirectly out of USQCD or lab budgetsof USQCD or lab budgets

• Effort depends upon very small number of Effort depends upon very small number of volunteersvolunteers

• SciDAC proposals do not mention ILDG SciDAC proposals do not mention ILDG and the program only funds software and the program only funds software developmentdevelopment• ILDG format derivative of SciDAC formatILDG format derivative of SciDAC format

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