Status:
Actively adding features to support improved science or performance by community contributors.
Code changes:
Community:
Geodynamics Forum
Bug reports:
Github Issue Tracker
License:
GNU Public License
Relax implements a semi-analytic Fourier-domain solver and equivalent body forces to compute quasi-static relaxation of stress perturbation.
It is not an acronym, it's a motto!
The open-source program Relax evaluates the displacement and stress in a half space with gravity due to dislocations, Mogi sources, and surface tractions; and the nonlinear time-dependent deformation that follows due to power-law rheology materials in the bulk and/or rate-strengthening friction faults. The numerical method is based on a Fourier-domain elastic Green's function (Barbot & Fialko, 2010a; 2010b) and an equivalent body-force representation of co-seismic and post-seismic deformation processes (Barbot et al., 2009b). Application of the method for the 2004 Mw 6 Parkfield earthquake can be found in the work of Barbot et al. (2009b) and Bruhat et al. (2011). A coupled model of afterslip and laterally-heterogeneous viscoelastic flow following the 1999 Mw 7.6 Chi-Chi earthquake using relax is described by Rousset et al. (2012).
The possible applications for the earthquake-cycle modeling include: i) co-seismic displacement and Coulomb stress calculation, ii) quasi-static stress transfer between earthquakes due to a postseismic transient, iii) modeling of postseismic transients including nonlinear rheologies and multiple mechanisms, iv) cycle of multiple earthquakes and spin-up models, v) loading cycle of lakes or the monsoon. The distribution includes various examples for published coseismic slip distributions.
These binaries are suitable for use on single core/processor computers as well as multi-core or multi-processor computers. They can only be used on a single compute node of a cluster.
Relax-Centos5-1_0_7.tgz [2014-09-30]
Binary version for 64 bit Centos 5 and RHEL 5.
Relax-Linux64-1_0_7.tgz [2014-09-30]
Binary version for 64 bit Linux.
Relax-Mac-1_0_7.dmg [2014-09-30]
Binary version for Mac OS X 10.5 (Leopard) or later.
Relax-Win-1_0_7.zip [2014-09-30]
Binary version for Windows Vista or later.
Relax-Linux32-1_0_7.tgz [2013-09-30]
Binary version for 32 bit Linux.
Relax-Centos5-1_0_6.tgz [2014-07-19]
Binary version for 64 bit Centos 5 and RHEL 5.
Relax-Linux32-1_0_6.tgz [2014-07-19]
Binary version for 32 bit Linux.
Relax-Linux64-1_0_6.tgz [2014-07-19]
Binary version for 64 bit Linux.
Relax-Mac-1_0_6.dmg [2014-07-19]
Binary version for Mac OS X 10.5 (Leopard) or later.
Relax-Win-1_0_6.zip [2014-07-19]
Binary version for Windows Vista and Windows 7.
Relax-Centos5-1_0_4.tgz [2012-12-30]
Binary version for 64 bit Centos 5 and RHEL 5.
Relax-Linux32-1_0_4.tgz [2012-12-30]
Binary version for 32 bit Linux.
Relax-Linux64-1_0_4.tgz [2012-12-30]
Binary version for 64 bit Linux.
Relax-Mac-1_0_4.dmg [2012-12-30]
Binary version for Mac OS X 10.5 (Leopard) or later.
Relax-Win-1_0_4.zip [2012-12-30]
Binary version for Windows Vista and Windows 7.
Relax-Centos5-1_0_3.tgz [2012-06-18]
Binary version for 64 bit Centos 5 and RHEL 5.
Relax-Linux32-1_0_3.tgz [2012-06-18]
Binary version for 32 bit Linux.
Relax-Linux64-1_0_3.tgz [2012-06-18]
Binary version for 64 bit Linux.
Relax-Mac-1_0_3.dmg [2012-06-18]
Binary version for Mac OS X 10.5 (Leopard) or later.
Relax-Win-1_0_3.zip [2012-06-18]
Binary version for Windows Vista and Windows 7.
Relax-Centos5-1_0_2.tgz [2012-06-06]
Binary version for 64 bit Centos 5 and RHEL 5.
Relax-Linux32-1_0_2.tgz [2012-06-06]
Binary version for 32 bit Linux.
Relax-Linux64-1_0_2.tgz [2012-06-06]
Binary version for 64 bit Linux.
Relax-Mac-1_0_2.dmg [2012-06-06]
Binary version for Mac OS X 10.5 (Leopard) or later.
Relax-Win-1_0_2.zip [2012-06-06]
Binary version for Windows Vista and Windows 7.
Relax-Centos5-1_0_1.tgz [2012-05-16]
Binary version for 64 bit Centos 5 and RHEL 5.
Relax-Linux32-1_0_1.tgz [2012-05-16]
Binary version for 32 bit Linux.
Relax-Linux64-1_0_1.tgz [2012-05-16]
Binary version for 64 bit Linux.
Relax-Mac-1_0_1.dmg [2012-05-16]
Binary version for Mac OS X 10.5 (Leopard) or later.
Relax-Win-1_0_1.zip [2012-05-16]
Binary version for Windows Vista and Windows 7.
Relax-Centos5-1.0.0.tgz [2012-01-05]
Binary version for 64 bit Centos 5 and RHEL 5.
Relax-Linux32-1.0.0.tgz [2012-01-05]
Binary version for 32 bit Linux.
Relax-Linux64-1.0.0.tgz [2012-01-05]
Binary version for 64 bit Linux.
Relax-Mac-1.0.0.dmg [2012-01-05]
Binary version for Mac OS X 10.5 (Leopard) or later.
Relax-Win-1.0.0.zip [2012-01-05]
Binary version for Windows Vista and Windows 7.
Source packages can be installed automatically on Mac OS X platform using fink with the command:
fink install relaxSource packages can be installed automatically on Mac OS X platform using Macports with the command:
port install relax3dIf the installation fails, you may have to run
sudo port install fftw-3 +gcc47
Source code, documentation and examples.
Source code, documentation and examples.
Source code, documentation and examples.
Source code, documentation and examples.
Source code, documentation and examples.
Source code, documentation and examples.
Source code, documentation and examples.
User Manual
The RELAX user manual is available online.
Community Wiki
Visit the RELAX Wiki page for additional support with building, using, or modifying RELAX.
RELAX Publications List
Research publications using RELAX.
Community Discussion
Browse the CIG Mailing List Archive to find past discussions and previous troubleshooting help, or post to the CIG forum with questions or comments.
Development Version
If you are interested in getting the development version of this code from the CIG repository, use the following git command:
git clone --recursive https://github.com/geodynamics/relax.git
You can also browse the history of modifications in the Git repository.
Issue/Bug Tracker on Github
Browse and/or submit new issues at our Github Issues Tracker.
Doxygen Documentation
Auto-generated Doxygen documentation is available for the Development and Release codebases.
Shows location of all users who downloaded RELAX in the past year (image updated daily.)