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| 1 | +Greetings, |
| 2 | + |
| 3 | +I am pleased to announce the release of PyLith 2.1.3, a finite-element |
| 4 | +code designed to solve dynamic elastic problems and quasi-static |
| 5 | +viscoelastic problems in tectonic deformation. |
| 6 | + |
| 7 | +This release provides a few new minor features and bugfixes. |
| 8 | + |
| 9 | +You can download the source code and binaries from |
| 10 | + |
| 11 | + http://geodynamics.org/cig/software/pylith |
| 12 | + |
| 13 | +Detailed installation instructions for the binary packages are in the |
| 14 | +User Manual with detailed building instructions for a few platforms in |
| 15 | +the INSTALL file bundled with the PyLith Installer utility. |
| 16 | + |
| 17 | + |
| 18 | +====================================================================== |
| 19 | +MIGRATING FROM VERSION 2.0 TO 2.1 |
| 20 | +====================================================================== |
| 21 | + |
| 22 | +The points file for OutputSolnPoints must now contain station names as |
| 23 | +the first column. |
| 24 | + |
| 25 | +====================================================================== |
| 26 | +RELEASE NOTES |
| 27 | +====================================================================== |
| 28 | + |
| 29 | +---------------------------------------------------------------------- |
| 30 | +Version 2.1.3 |
| 31 | +---------------------------------------------------------------------- |
| 32 | + |
| 33 | +* Add generate_statedb.py and postseismic.pvsm files missing from |
| 34 | + examples/2d/gravity. |
| 35 | + |
| 36 | +* Update handling of fault intersection when creating boundary |
| 37 | + condition nodesets in examples/meshing/surface_nurbs/subduction. |
| 38 | + |
| 39 | +* Fixes to Darwin binary package. |
| 40 | + |
| 41 | + + Fix linking of netCDF4 Python module. |
| 42 | + |
| 43 | + + Fix linking and executable mode permissions for Python scripts in |
| 44 | + binary by using nemesis so relative links are valid. |
| 45 | + |
| 46 | +---------------------------------------------------------------------- |
| 47 | +Version 2.1.2 |
| 48 | +---------------------------------------------------------------------- |
| 49 | + |
| 50 | +* Bugfixes for finite-strain formulation. |
| 51 | + |
| 52 | + + Added output of the Cauchy stresses (cauchy_stress). The second |
| 53 | + Pioloa-Kirchoff stresses are output via the stress field. |
| 54 | + |
| 55 | + + Material properties and state variables were not retrieved |
| 56 | + properly when updating state variables. |
| 57 | + |
| 58 | +* Bugfixes for setting initial stress and state variables for |
| 59 | + viscoelastic materials. The deviatoric stress state is carried |
| 60 | + forward using the state variables, so the initial deviatoric stress |
| 61 | + should not be considered when computing the stresses. |
| 62 | + |
| 63 | +* Created new examples showing how to use gravity, initial stress, and |
| 64 | + finite-strain in 2-D (examples/2d/gravity). |
| 65 | + |
| 66 | +* Reintroduced check (that had been inadvertently removed in v2.x) for |
| 67 | + ambiguous description of fault surface based on groups of vertices |
| 68 | + defining faces of cells. |
| 69 | + |
| 70 | +* Flush the output of the progress monitor so progress reports are |
| 71 | + updated promptly. |
| 72 | + |
| 73 | +* Updates to the user manual. |
| 74 | + |
| 75 | + + Added section on the debugging examples covered in recent |
| 76 | + tutorials. |
| 77 | + |
| 78 | + + Added tables describing the spatial database values for each |
| 79 | + material. |
| 80 | + |
| 81 | + + Included a more complete discussion of the finite-strain |
| 82 | + formulation. |
| 83 | + |
| 84 | +* PETSc |
| 85 | + |
| 86 | + + Updated to PETSc v3.7.1 (knepley/pylith branch). |
| 87 | + |
| 88 | + + Fixed Trilinos/ML configuration and code so that it can be built |
| 89 | + without a Fortran compiler. |
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