GriPhyN – Towards Petascale Virtual Data GridsPaul Avery, University of Florida Ian Foster, University of ChicagoNSF Grant ITR-0086044 www.griphyn.org

Research Objectives Provide tools to manage, discover, & apply peta-scale

data and software resources Enable Grids to be used by scientists as simply as

personal workstationsApproach A uniform virtual data model (VDL) to express

datasets and workflow. Advanced planners, executors, monitors, predictors, and fault recovery to make the Grid “like a workstation”

Intensive Experiment/CS collaboration Partnership with iVDGL and PPDG to deploy

international Grid: www.ivdgl.org/grid2003

Broader Impact Unified language to express data

transformation benefits all sciences Lowered barrier to computation; increased

collaboration and communication Benefits to education – enhance discovery and

learning of scientific processes

Participants Argonne, Boston U, Brookhaven, Caltech, Fermilab,

Hampton, Johns Hopkins, Harvard, Salish Kootenai, Texas A&M, UC Berkeley, UC San Diego,U Chicago, U Florida, USC/ISI, U Texas, U Wisconsin

Significant Results Virtual Data Language, Virtual Data Toolkit (VDT) VDT tools applied by multiple sciences (ATLAS, CMS, LIGO, SDSS,

Bioinformatics, others ) Collaboration with other NSF & DOE supported projects to build

international Grid Grid2003 Outreach impact: Virtual data for QuarkNet,

Summer Grid Workshop 2004-05 Intensive student involvement – 25 graduate, 2 undergraduate; 4 CS

PhDs as of 07/2005

discovery

ScienceReview

ProductionManager

Researcherdiscovery

sharing

Users

VirtualData

composition

planning

Planning

Execution

Virtual DataToolkit

Chimera virtual data

system

Pegasus planner

DAGman

Globus ToolkitCondor

Ganglia, etc.

Monitoring and Prediction

Production Analysisparams

exec.

data

discovery

ScienceReview

ProductionManager

Researcherdiscovery

sharing

Users

VirtualData

Open Science Grid,TeraGrid

composition

Planning

Execution

Virtual DataToolkit

VDSvirtual data

system

Pegasus planner

DAGman

Globus ToolkitCondor

Ganglia, etc.

Monitoring and Prediction

Production Analysisparams

exec.

data

Production Analysisparams

exec.

data