[CIG-ALL] CIG News - April 2009

[Sue Kientz]

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                         CIG News:  April 2009
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Also available at
http://geodynamics.org/cig/proposalsndocs/newsdocs/newsletter-april09

CIG Software Releases

    * Cigma 1.0 - The CIG Model Analyzer (Cigma) is a tool for  
standardizing error analysis and benchmarking of geodynamics modeling  
codes. Highlights of this 1.0 release include faster comparisons  
between two finite element solutions and the ability to read Cigma  
datasets from parallel VTK input files. See http://geodynamics.org/cig/software/packages/cs/cigma/
for source code and manual.

    * Flexwin 1.0 - The FLEXWIN software package automates the time- 
window selection problem for seismologists. It operates on pairs of  
observed and synthetic single component seismograms, defining windows  
that cover as much of a given seismogram as possible, while avoiding  
portions of the waveform that are dominated by noise. See
http://geodynamics.org/cig/software/packages/seismo/flexwin
for source code and manual.

    * Gale 1.4.1 - Gale is a 2D/3D code that solves problems related  
to orogenesis, rifting, and subduction with coupling to surface  
erosion models. This latest release features a new power-law creep  
rheology and a few bug fixes. Gale is a joint effort between CIG,  
Victorian Partnership for Advanced Computing (VPAC), and Monash  
University. See
http://geodynamics.org/cig/software/packages/long/gale/
for binaries, source code, and manual.

    * HC 1.0 - HC is a global mantle circulation solver following  
Hager & O'Connell (1981) which can compute velocities, tractions, and  
geoid for simple density distributions and plate velocities. This  
particular implementation illustrates one possible way to combine the  
HC solver routines. Based on code by Brad Hager, Richard O'Connell,  
and Bernhard Steinberger. This version by Thorsten Becker and Craig  
O'Neill. See
http://geodynamics.org/cig/software/packages/mc/hc
for binaries, source code and documentation links.

Custom 3D Earth Models Among New Features Available on CIG Seismology  
Web Portal

    *  The CIG Seismology Web Portal now allows users to upload their  
own custom 3D earth models for use in SPECFEM3D Globe simulations. A  
user creates a 3D Earth model by implementing a handful of routines in  
Fortran or C, and then packaging the code together with any required  
data files. Example Earth model implementations, including S20RTS and  
S362ANI, are available for download. Among the Earth model examples is  
an interesting new code package which converts the output of the  
CitcomS mantle convection code into an isotropic SPECFEM3D GLOBE  
velocity model. This enables users to simulate seismic wave  
propagation through an Earth model generated by CitcomS. In addition,  
the portal now runs the 1D Mineos code in parallel, resulting in a  
much shorter turnaround time for 1D synthetics. Create an account and  
login at
https://crust.geodynamics.org/portals/seismo/
to run default and customized seismology simulations (click "Accept  
this certificate..." if prompted).

Upcoming Training/Meetings

     * Training Sessions on Tectonic Models and Large-Scale Earth  
Models at EarthScope 2009, May 12, 2009, Boise Centre on the Grove,  
Boise, ID. At EarthScope on May 12, 2009, in Boise, ID, CIG will  
conduct two separate training sessions, each lasting from 8 a.m. to 3  
p.m.: one in the use of the Gale and PyLith software packages for  
Tectonic Models, and the other in Large-Scale Earth Models using  
SPECFEM3D/CitcomS software. Financial support is available for  
graduate students and post-docs who wish to attend. Get more details  
and register at
http://geodynamics.org/cig/proposalsndocs/newsdocs/cig-earthscope09-training

     * 2009 Workshop on Numerical Modeling of Crustal Deformation and  
Earthquake Faulting, June 22-26, 2009, Golden, CO. The focus of this  
gathering is on computational models addressing crustal deformation  
with an emphasis on the seismic cycle across single and multiple  
events. The workshop will blend science talks on case studies from  
particular faulting environments and on key rheological behavior with  
discussions of current obstacles to crustal deformation modeling. Get  
more details and register at
http://geodynamics.org/cig/workinggroups/short/workshops/nmcdef-09

CIG is Seeking CIG-Enabled One-Pagers, Journal Articles

     * In preparation for the next phase of CIG, we are beginning a  
self-evaluation to understand the range of activities and impact of  
CIG. As a useful mechanism (and a very nice way to highlight your own  
science), we are seeking bibliographic information and/or electronic  
copies of "One-Pagers" (that briefly describe an exciting piece of  
your science that was made possible using CIG software or resources)  
or any published, in-press, or planned journal article or other  
publication that has been enabled by CIG or is contributing to the  
overall CIG effort. More details, an example one-pager, and forms for  
submitting your publication are at http://geodynamics.org/cig/proposalsndocs/related-papers

Presentations and Posters from OCCG 09 Meeting Online

     * Opportunities and Challenges in Computational Geophysics, held  
March 30-31, 2009, at Caltech. This workshop exaxmined the state of  
the art in computational geophysics through invited talks, posters and  
discussion. Participants in all areas of our science attended,  
including experts in computational science and in geophysics. View the  
presentation and posters at
geodynamics.org/cig/proposalsndocs/newsdocs/occg-materials

CIG Simulations Now on YouTube

     * CIG now has its own channel on YouTube, where you can view  
movie files of simulations of CIG software such as CitcomS, Gale, and  
MAG; the channel is named CIGeodynamics [http://www.youtube.com/user/CIGeodynamics 
]. You can "subscribe" to CIG's channel and receive an e-mail when a  
new simulation is uploaded. If you create any simulations using CIG  
software and wish to add it to our channel, e-mail the file with an  
appropriate caption to sue at geodynamics.org.

CIG Software Downloads Visualized Globally

     * Visit any CIG software package web page and scroll to the  
bottom to see a world map that shows where that software has been  
downloaded since its release. Currently the most downloaded packages  
are:
           o CitcomS    http://geodynamics.org/cig/software/packages/mc/citcoms/
           o Gale    http://geodynamics.org/cig/software/packages/long/gale
           o MAG    http://geodynamics.org/cig/software/packages/geodyn/mag
           o Mineos  http://geodynamics.org/cig/software/packages/seismo/mineos
           o PyLith    geodynamics.org/cig/software/packages/short/ 
pylith
           o SPECFEM3D (Basin) http://geodynamics.org/cig/software/packages/seismo/specfem3d
           o SPECFEM3D_GLOBE   http://geodynamics.org/cig/software/packages/seismo/specfem3d-globe


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Who to contact

CIG Administration, contracts, travel, etc.:
Ariel Shoresh, (626) 395-1699
ariel at geodynamics.org

Equation solvers (PETSc) and PyLith development:
Matt Knepley, knepley at mcs.anl.gov

Gale and Magma development:
Walter Landry, (626) 395-4621
walter at geodynamics.org

Benchmarking, Cigma, and visualization:
Luis Armendariz, (626) 395-1695
luis at geodynamics.org

Build procedure and computational seismology:
Leif Strand, (626) 395-1697
leif at geodynamics.org

Citcom and Mantle convection benchmarks:
Eh Tan, (626) 395-1693,
tan2 at geodynamics.org

Website and user manuals:
Sue Kientz, (626) 395-1694
sue at geodynamics.org

SVN software repository and systems administration:
Jan Lindheim
cig-help at geodynamics.org

Software architecture and Pyre framework:
Michael Aivazis, (626) 395-1696
aivazis at caltech.edu

Administration:
Mike Gurnis, (626) 395-1698
gurnis at caltech.edu

Science Steering Committee: contact Chair
Louise Kellogg (UC Davis),
kellogg at geology.ucdavis.edu

Executive Committee: contact Chair
Marc Spiegelman (Columbia),
mspieg at lamont.ldeo.columbia.edu

-- 
Sue Kientz

Technical Writer/Web Manager
Computational Infrastructure of Geodynamics (CIG)
    http://www.geodynamics.org/
sue at geodynamics.org
ofc: (626) 395-1694
    ~Metaphors Be With You~
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