Changes to master since v5.4.1¶
Follow the links to see changes that have been made to the master branch of each repository since the last release (v5.4.1) on February 17, 2017.
These changes should appear in the next release. If you need them now, see Developers’ Guide for instructions on cloning and installing from the master branch.
Changes that are not backward compatible¶
- The format of checkpoint styles has changed for AMRClaw and GeoClaw, so old checkpoint files can not be used to restart with newer code.
- In GeoClaw, the way some topofiles are interpreted has been changed to conform with the intended “grid registration”. This is not backward compatable for files with headers that specify xllower, yllower. See below for more details.
General changes¶
- LICENSE file added to all repositories, with BSD license
Changes to visclaw¶
- Minor changes to Matlab codes
- Minor changes to kml functionality
- ClawPlotItem.colorbar_kwargs added for setting other colorbar keyword arguments
- ClawPlotAxes.beforeframe added to allow e.g. plotting on a background image, see PR #226 for an example.
See visclaw diffs
Changes to riemann¶
- Add some vectorized Riemann solvers
- Changes to layered shallow water solvers
See riemann diffs
Changes to amrclaw¶
- The valout routine has been rewritten and now prints out timing information to two files in the output directory: timing.txt contains a summary at the end of the run, while timing.csv contains cumulative timing information at each output time. The script examples/advection_2d_inflow/plot_timing_stats.py gives an example of how this data might be plotted. Information on both wall time and CPU time is included, particularly useful for multi-core simulations.
- Write more digits in regions.data file.
- Clean up some timing variables.
- The maximum number of allowable refined grids is now variable, and no longer static. If the current maximum is exceeded, all arrays dimension at maxgr, namely rnode, node, and listOfGrids (currently set to 10000) are resized by another 10K. bndList is also now resizable.
- The format of checkpoint files changed to include maxgr. This is not backward compatible – old checkpoint files can not be used to restart with the new code.
- Makefile.amr_2d changed to include the new files to initialize, restart, and resize the nodal arrays and boundary lists.
- The gauges had one some variable that depended on maxgr. By changing the gauges algorithm, this was eliminated. The old algorithm did not scale well for O(10^5) grids and O(100) gauges. The new algorithm just has each grid patch sort the gauge list to see if it has any gauges to update. (The old algorithm sorted all grid owners and their owner gauges, (thus needing to save that mapping), and therefore was an index lookup by grid number. But again, 10^5 grids needing 2 arrays for only 100 gauges did not make sense. Also changed the algorithm for finding the best source grid for a gauge. By starting at the finest level, and rearranging the order of the loops, once a grid owner was found for a gauge there was no need to search the rest of the grids.
See amrclaw diffs
Changes to geoclaw¶
- Makefile.geoclaw changed to include the new files to initialize, restart, and resize the nodal arrays and boundary lists.
- The way some topofiles are interpreted has been changed to conform with the intended “grid registration”. In particular, topofiles with a header containing xllower and yllower contain data that should be viewed as cell-centered data on a uniform grid that starts at (xllower + dx/2, yllower + dy/2) and not at (xllower, yllower). See PR #303 for more discussion and grid_registration for documentation. This is not backward compatable for files with these headers. Change the header to specify xlower and ylower (or xllcenter, yllcenter) if you want the data to be interpreted in the old manner.
- The format of checkpoint files changed to include maxgr. This is not backward compatible – old checkpoint files can not be used to restart with the new code.
- Multi-layer shallow water solvers have been extended to work with AMR. (This is still under development and may have some bugs.)
- Makefile.geoclaw changed to include the new files to initialize, restart, and resize the nodal arrays and boundary lists.
- New capabilities have been added to read topofiles in netCDF, and also to download topo DEMs from .nc files at remote URLs. This allows downloading only a subset of the DEM and at a coarsened resolution. See topotools.read_netcdf in topotools module for working with topography data, and tests/test_etopo1.py for an example of usage. More documentation needed.
- The etopotools.py module has been deprecated in favor of the topotools.read_netcdf function, which can be called with path = ‘etopo1 to read from the online etopo1 database in netCDF format. This allows downloading only a subset of the DEM and at a coarsened resolution. The old way of doing this is not robust and sometimes gave incorrect results due to issues with the old etopo1 server (which is no longer maintained). See topo_netcdf and PR #308. An example can be found in tests/test_etopo1.py.
- More generally, topofiles can now be read in from netCDF files either locally or from the web. See topo_netcdf for some documentation.
- New capabilities have been added to download NOAA tide gauge data, see PR #287.
- Some plotting issues have been resolved.
- dtopotools.SiftFault now has the rigidity mu set properly, which changes the magnitude Mw that is reported for a fault created using the NOAA SIFT database.
- topotools.read now allows dx != dy in a header for topo_type in [2,3].
- Many other minor changes.
See geoclaw diffs
Other Clawpack Repositories¶
The repositories below are not included in the Clawpack tarfile or pip install, but changes to these repositories may also be of interest.
