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PyLith

PyLith is a finite element code for the solution of dynamic and quasi-static tectonic deformation problems.

PyLith User Manual The latest release (version 1.6.2 in source code and binaries) allows the solution of both quasi-static and dynamic problems in one, two, or three dimensions. PyLith 1.0 was a complete rewrite of the original PyLith 0.8. The code runs in either serial or parallel mode, and the design allows for relatively easy scripting using the Python programming language. Material properties and parameters for boundary and fault conditions are specified using a spatial database, which permits easy prescription of complex spatial variations of properties and parameters. Simulation parameters are generally specified through the use of simple ASCII files or the command line.

Version 1.6 provides several new features and enhancements. New features include parallel binary output via HDF5 files, (2) a 2-D generalized Maxwell viscoelastic bulk constitutive model, (3) a time-weakening fault constitutive model, (4) global uniform parallel mesh refinement, (5) a custom algebraic multigrid preconditioner to improve the efficiency of the solver for quasi-static problems, and (6) a new installation utility for building from source. The manual has also been updated for the new features and includes some additional examples.

Version 1.6.2 fixes several bugs related to running in parallel and using fault friction. See the release announcement for details. We strongly recommend that all users update to this current release.

Status Developed, maintained, and supported.
Contact cig-short@geodynamics.org
Bug reports RoundUp
License MIT License


Current Release

Binaries

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. Users wanting to run PyLith on multiple compute nodes of a cluster must build from source.

pylith-1.6.2-linux-i686.tgz [2011-11-10]
Version 1.6.2 binary for Linux ~ i686, GLIBC 2.7 or later
pylith-1.6.2-linux-x86_64.tgz [2011-11-10]
Version 1.6.2 binary for Linux ~ x86_64, GLIBC 2.7 or later
pylith-1.6.2-centos-x86_64.tgz [2011-11-10]
Version 1.6.2 binary for Linux ~ x86_64, GLIBC 2.5 or later (primarily CentOS 5)
pylith-1.6.2-darwin-10.4.tgz [2011-11-10]
Version 1.6.2 binary for Darwin Intel, Mac OS X 10.4 and 10.5.
pylith-1.6.2-darwin-10.6.8.tgz [2011-11-10]
Version 1.6.2 binary for Darwin Intel, Mac OS X 10.6.

Source Code

Use the PyLith Installer to build the current PyLith release and its dependencies from source code on UN*X operating systems. Instructions are included in the installer distribution. There is no need to download any of the tarballs other than the installer distribution.

pylith-installer.1.6.2-0.tgz [2011-11-10]
Version 1.6.2-0

Source tarballs for expert users not wanting to use the PyLith Installer.

pylith-1.6.2.tgz [2011-11-10]
Version 1.6.2
spatialdata-1.8.0.tgz [2011-11-10]
Spatialdata is required for PyLith v1.x. Spatialdata provides transformations among coordinate systems and simple databases for specification of boundary conditions and material properties.
petsc-dev-pylith-1.6.2.tgz [2011-1-10]
PyLith 1.6.x requires the development version of PETSc at the time of the PyLith 1.6.x release. PETSc provides finite-element mesh data structures (Sieve) and parallel linear algebra routines and data structures. This source distribution works for release 1.6.2.
nemesis
Nemesis is required for PyLith v1.x. Nemesis simply installs a pair of Python interpreters ('nemesis' and 'mpinemesis') which incorporate MPI and include Pythia's "_mpi" module.

Documentation

PyLith User Manual, version 1.6.1 [2011-07-15]
Documentation and Tutorials updated for PyLith 1.6.1
PyLith Wiki
Hints, tips, and tricks on using PyLith
Crustal Deformation Modeling Tutorial, June 2011
Slides and movies from online tutorial for PyLith 1.6
Development plans [2011-04-20]
Planned features and target release dates

Development Version

If you are interested in checking out PyLith from the CIG repository, use the following Subversion command: 

svn checkout http://geodynamics.org/svn/cig/short/3D/PyLith/trunk/

Previous Releases

Past releases of PyLith are available on the Previous Releases page.

PyLith Users Map

Shows location of all users who downloaded PyLith since the code was released (image updated daily).

map showing location of all users who downloaded PyLith since the code was released (image updated daily)

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Help

To identify known issues, report bugs, request help, or provide feedback or suggestions:

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