the workflow description modified to output a vds dax. the workflow description toolkit developed...
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The workflow description modified to output a VDS DAX. The workflow description toolkit developed allows any concrete
workflow description to be migrated onto the LSC Data Grid using Pegasus.
The LSC is using the occasion of SC2004 to undertake a production analysis of data from its third science run (S3) to search for gravitational waves from binary neutron stars and black holes.
Pegasus supports a wide variety of workflows running on the Grid from various scientific fields ranging from Astrophysics, Astronomy, High Energy Physics to Earthquake Sciences and Computational Biology.
BLAST Genome Analysis and Database Update
http://www-fp.mcs.anl.gov/pdq/pdq.htm ATLAS Monte Carlo data production Sloan Digital Sky Survey galaxy cluster finding http://www.sdss.org Neuro Tomography - http://ncmir.ucsd.edu
Pegasus at work on the GridPegasus at work on the Gridhttp://pegasus.isi.edu
People InvolvedLIGO : Patrick Brady, Scott Koranda, Stephen Fairhurst – UWM
Kent Blackburn, Duncan Brown, Teviet Creighton, Albert Lazzarini - Caltech
Gabriela Gonzalez - Louisiana State University
MONTAGE : Bruce Berriman, John Good, Anastasia Laity - Caltech/IPAC
Joseph Jacob, Daniel Katz - JPL
SCEC : Vipin Gupta, Phil Maechling, Maureen Dougherty, Brian Mendenhall,
Garrick Staples - USC
John Mcgee, Sridhar Gullapalli – ISI
Thanks to everyone involved in setting up the testbed and for
contributing the resources.
SCEC is developing the Southern California Earthquake Center Community Modeling Environment (SCEC/CME).
Grid computing have made practical to create fully three-dimensional (3D) simulations of fault-system dynamics.
These physics-based simulations can potentially provide enormous practical benefits for assessing and mitigating earthquake risks through Seismic Hazard Analysis (SHA).
The SCEC/CME system is an integrated geophysical simulation modeling framework that automates the process of selecting, configuring, and executing models of earthquake systems on the grid via Pegasus.
A View of SCEC Composition Process
LSC Testbed
Grid-BasedData Selector
CompositionalAnalysis Tool
(CAT)
DAXGenerator
Pegasus
CondorDAGMAN
PathwayComposition
Tool
GRID
host1host2
Data
Data
CAT KnowledgeBase
SCEC DatatypeDB
MetadataCatalog Service
ReplicaLocationService
Dax
Dag
Rsl
HAZARD MAP
LIGO Scientific Collaborationhttp://www.ligo.org
Radio observations confirm the existence of binary neutron star systems in the Galaxy.
In previous science runs, approximately a thousand of shapes or templates were required;
Increasing complexity with design sensitivity. Currently searches performed on dedicated Beowulf clusters with ~ 300 CPUs. Very Compute intensive hence ideal candidate for Grid Computing Production analysis of S3 data to demonstrate scalability of the inspiral analysis
tools on to a full-scale Grid testbed.
Montagehttp://montage.ipac.caltech.edu
Delivers science grade custom mosaics on demand
Produces mosaics from a wide range of data sources (possibly in different spectra)
User-specified parameters of projection, coordinates, size, rotation and spatial sampling.
The Sword of Orion (M42, Trapezium, Great Nebula). This mosaic was obtained by running a Montage workflow through Pegasus and executing the concrete workflow
the Teragrid resources.
Black Hole Inspiral Gravitational Waveform
Gravitational Waves from binary inspiral
Binary black hole inspiral (artist rendering)
A small montage workflow
Other Success Stories
Southern California Earthquake Centerhttp://www.scec.org