Abstract

The SCEC Earthworks Science Gateway is a portal-based scientific workflow system designed to help members of the SCEC geoscience community perform computationally-intensive, geophysical research using TeraGrid resources. The SCEC Earthworks Science Gateway allows users to configure and execute earthquake wave propagation simulations using well validated geophysical models and high performance simulation software. The Earthworks system generates a set of data products including surface seismograms and ground motion maps. Users access the SCEC Earthworks system through a web-based portal built using the GridSphere Portlets engine. Users can configure, submit, and monitor wave propagation simulations. They can also submit verification and validation simulations to ensure new versions of the Geoscientific codes work properly. Users can also access the resulting simulation data products. All steps in the wave propagation simulations including mesh generation, wave propagation, and post processing are run using a scientific workflow system based on the Pegasus workflow management system, Condor DAGMan, and the Globus toolkit. Long term data storage is provided by the Storage Resource Broker (SRB).

Date

2007

Authors

Philip Maechling, Joanna Muench, Hunter Francoeur, David Okaya, Yifeng Cui, Ewa Deelman, Gaurang Mehta, Reagan Moore, Thomas Jordan

Journal

TeraGrid07 Conference, Madison, 2007