[CIG-ALL] Release of SPECFEM3D_GLOBE V4.0

[Donna Mireles]

Dear SPECFEM3D user:

We are pleased to announce the release of version 4.0 of the global 
seismic wave propagation package SPECFEM3D_GLOBE. This new release 
involves major improvements to the mesh. Using a new doubling brick, the 
mesh is now more accurate (in particular in the upper and mid-mantle) 
and also perfectly load-balanced when running on a parallel computer, 
and therefore the package should scale very well all the way up to the 
petascale. A very large number of CPUs can now be used. Most 1D Earth 
models are available (PREM, IASP91, 1066A, AK135, and REF), and in 
addition to 3D model S20RTS (Ritsema et al. 1999) we now also 
accommodate model S362ANI (Kustowski et al. 2006). The package continues 
to accommodate 3D attenuation, 3D anisotropy, kinematic sources, and has 
adjoint and movie capabilities. In addition, information and scripts 
related to post-processing of data and synthetics are provided.

The package is now fully open source and released under version 2 of the 
GNU General Public License.

Various benchmarks of the code against 
elastic/anelastic/isotropic/transversely isotropic normal-mode 
synthetics down to periods of 9 s are presented in the manual, and 
additional tests are available in an EXAMPLES directory.

The new release may be obtained through the Computational Infrastructure 
for Geodynamics (CIG) website:

http://www.geodynamics.org/cig/software/packages/seismo/specfem3d-globe

A detailed manual for V4.0 may be downloaded here (or found in directory 
USER_MANUAL):

http://www.geodynamics.org/cig/software/packages/seismo/specfem3d-globe/manual_SPECFEM3D_GLOBE.pdf 


Please e-mail your feedback, questions, comments, suggestions and bug 
reports to the CIG Computational Seismology mailing list 
(cig-seismo at geodynamics.org).

We thank all the other developers who have contributed to the 
development of the source code or the manual, in alphabetical order: Min 
Chen, Vala Hjörleifsdóttir, Sue Kientz, Nicolas Le Goff, Alessia Maggi, 
Brian Savage, Bernhard Schuberth, Anne Sieminski, Leif Strand, Carl Tape 
and Peter van Keken.

Best regards,

Dimitri Komatitsch, David Michéa, Qinya Liu and Jeroen Tromp