[CIG-SHORT] Reminder: CIG Pylith and Gale tutorials at Earthscope 2011
Brad Aagaard
baagaard at usgs.gov
Wed Apr 20 15:41:19 PDT 2011
CIG TUTORIALS AT EARTHSCOPE 2011.
CIG will be conducting two Pre-Meeting Tutorials at the Earthscope
National Meeting. Registration for the CIG Pre-Workshop Tutorials will
be done directly through CIG, and is separate from the Earthscope
National Meeting.
Please go to
http://www.geodynamics.org/cig/community/workshops/earthscope2011/index_html
for more information on the tutorial sessions, as well as the
Registration Form.
****************
Training Session for the GALE Computational Software in Tectonics and
Geophysics
Date: Tuesday, May 17th, 2011 8:30 to 5pm.
Location: AT&T Executive Education Center, University of Texas at Austin
Room: TBA
Convener: Walter Landry, Computational Infrastructure for Geodynamics.
An important component of interpreting the wealth of data available to
geologists is the use of computational methodologies to simulate
tectonic processes. In this training session, the NSF-sponsored
Computational Infrastructure for Geodynamics (CIG) will focus on
training of new users in the use of the tectonics modeling software Gale.
Gale is a 2D/3D parallel code that solves problems in orogenesis,
rifting, and subduction with a variety of boundary conditions, including
free surfaces and coupling to surface erosion models. Gale is bundled
with a number of rheologies and extensive documentation, and is
extensively benchmarked. Precompiled binaries make it easy to start
using Gale on Windows, Mac, or Linux laptops and desktops. Thorough
installation notes allow users to then install Gale on the largest
supercomputers and run the same input files.
Gale is free software, requiring no fees to acquire or run, and is
developed by CIG in conjunction with the Victorian Partnership for
Advanced Computing and Monash University. Gale is available at
http://geodynamics.org/cig/software/packages/long/gale/
During the session, participants will be given background theory, an
overview of the code including its strengths and weaknesses for solving
geodynamic problems, and instruction on downloading and running these
codes (including running them on the NSF TeraGrid), and post-processing
(visualizing) the results. As time permits, the workshop will also
cover how to implement new rheologies and custom surface processes in
Gale.
********************
Training in use of Crustal Deformation Modeling Software (PyLith)
Date: Tuesday, May 17th, 2011 from 8:30 a.m. to 5 p.m
Location: AT&T Executive Education Center, University of Texas at Austin
Room: TBA
Conveners: Brad Aagaard (USGS), Charles Williams (GNS Science), Matt
Knepley (UChicago)
Data from the US Array and PBO components of EarthScope allow an
extraordinary opportunity to better understand Earth structure and
dynamics. An important component of interpreting such data is the use of
computational methodologies to simulate tectonic processes. The
Computational Infrastructure for Geodynamics (CIG), an NSF center, will
provide a full-day of training for new users in the use of software that
can be applied to the interpretation and modeling of EarthScope data.
The training session will be held May 17, 2011, from 8:30 a.m. to 5 p.m.
The training will focus on the PyLith crustal deformation modeling
software – available at
(http://www.geodynamics.org/cig/software/pylith/) while also providing
an introduction to the use of the CUBIT meshing package
(http://cubit.sandia.gov).
PyLith is open-source finite-element software for 2-D and 3-D dynamic
and quasi-static modeling of crustal deformation. The target
applications span spatial scales ranging from tens of meters to hundreds
of kilometers and temporal scales for dynamic modeling ranging from
milliseconds to minutes or temporal scales for quasi-static modeling
ranging from minutes to thousands of years. Current features include
prescribed fault ruptures with multiple sequential earthquakes and
aseismic creep, spontaneous fault ruptures with a variety of fault
constitutive models, time-dependent Dirichlet and Neumann boundary
conditions, absorbing boundary conditions, time-dependent point forces,
and gravitational body forces. PyLith supports infinitesimal and small
strain formulations for linear elastic rheologies, linear and
generalized Maxwell viscoelastic rheologies, power-law viscoelastic
rheologies, and Drucker-Prager elastoplastic rheologies.
During the training session, participants will be given background
theory, an overview of the codes including their strengths and
weaknesses for solving geodynamic problems, and instruction on
constructing a finite-element mesh, running a simulation, and
post-processing (visualizing) the results.
Brad Aagaard
More information about the CIG-SHORT
mailing list