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| 1 | +Greetings, |
| 2 | + |
| 3 | +I am pleased to announce the release of PyLith 2.0.1, a finite-element |
| 4 | +code designed to solve dynamic elastic problems and quasi-static |
| 5 | +viscoelastic problems in tectonic deformation. |
| 6 | + |
| 7 | +This release improves fixes some issues with CUBIT/Trelis |
| 8 | +compatibility in example journal files. |
| 9 | + |
| 10 | +You can download the source code and binaries from |
| 11 | + |
| 12 | + http://geodynamics.org/cig/software/packages/short/pylith |
| 13 | + |
| 14 | +Detailed installation instructions for the binary packages are in the |
| 15 | +User Manual with detailed building instructions for a few platforms in |
| 16 | +the INSTALL file bundled with the PyLith Installer utility. |
| 17 | + |
| 18 | + |
| 19 | +====================================================================== |
| 20 | +MIGRATING FROM VERSION 1.9 TO 2.0 |
| 21 | +====================================================================== |
| 22 | + |
| 23 | +Changes to various C++ objects permitted simplifying the specification |
| 24 | +of a number of components. The map below indicates the name changes. |
| 25 | + |
| 26 | + CellFilterAvgMesh -> CellFilterAvg |
| 27 | + DataWriterVTKMesh -> DataWriterVTK |
| 28 | + DataWriterVTKSubMesh -> DataWriterVTK |
| 29 | + DataWriterVTKSubSubMesh -> DataWriterVTK |
| 30 | + DataWriterHDF5Mesh -> DataWriterHDF5 |
| 31 | + DataWriterHDF5SubMesh -> DataWriterHDF5 |
| 32 | + DataWriterHDF5SubSubMesh -> DataWriterHDF5 |
| 33 | + DataWriterHDF5ExtMesh -> DataWriterHDF5Ext |
| 34 | + DataWriterHDF5ExtSubMesh -> DataWriterHDF5Ext |
| 35 | + DataWriterHDF5ExtSubSubMesh -> DataWriterHDF5Ext |
| 36 | + |
| 37 | + Running the script: |
| 38 | + |
| 39 | + bash $PYLITH_DIR/doc/developer/update_1.9to2.0.sh |
| 40 | + |
| 41 | + will update all .cfg files in the current directory and all |
| 42 | + subdirectories with the new names (you will need to replace |
| 43 | + $PYLITH_DIR with the directory containing the PyLith source code). |
| 44 | + |
| 45 | + |
| 46 | +PyLith allows use of the Chaco and ParMetis/Metis partitioners. The |
| 47 | +name of the ParMetis/Metis partitioner was changed from "parmetis" to |
| 48 | +"metis". |
| 49 | + |
| 50 | + [pylithapp.mesh_generator] |
| 51 | + distributor.partitioner = metis |
| 52 | + |
| 53 | +Buried edges of faults are handled differently in v2.0. A separate |
| 54 | +nodeset/pset should be created and contain the vertices on the buried |
| 55 | +edges of the fault. See the Section 6.4.2 of the PyLith manual for |
| 56 | +more information. |
| 57 | + |
| 58 | +====================================================================== |
| 59 | +RELEASE NOTES - PyLith v2.0.1 |
| 60 | +====================================================================== |
| 61 | + |
| 62 | +* Added example (examples/2d/gravity) for viscoelastic deformation in |
| 63 | + 2-D with gravitational body forces and small strain formulation. |
| 64 | + |
| 65 | +* Bug fixes |
| 66 | + |
| 67 | + - Improved example journal files for CUBIT/Trelis to improve |
| 68 | + compability. All journal files should work with CUBIT 14.1 and |
| 69 | + Trelis 15.0. |
| 70 | + |
| 71 | + - Created examples of IDless journal files in examples/2d/greensfns. |
| 72 | + These files should work with all recent versions of CUBIT and |
| 73 | + Trelis. |
| 74 | + |
| 75 | + - Switched journal APREPRO lines to have leading '$' instead of '#' |
| 76 | + to differentiate from comments. |
| 77 | + |
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