Change Log

  • New feature: added a new DYNAMITE module orbit_exploration, its first class Decompostion creates decomposition plots

  • Improvement: Changed the ml directory name format to ‘05.2f’ so all model directory names have the same length

  • New feature: Added AllModels.remove_unused_orblibs() utility method to free up disk space

  • New feature: Added a new method AllModels.make_best_models_table() that creates a table of the best models (best n models or models within a chi2-threshold of the best) and saves it to disk

  • Bugfix: If reattempt_failures=False, in certain cases it could occur that orblibs of successful models were deleted

  • Bugfix: Fixed a bug related to a nonexistent model directory if a crash occurs between the parameter generator adding a model and starting to solve it

  • Improvement: Dynamite will no longer crash upon Legacy Fortran errors, but issue warnings and assign nan to the affected chi2 values

  • Improvement: When executing a dummy run (do_dummy_run==True), model_iterator will set both kinchi2 and kinmapchi2 to nan (instead of zero)

  • Improvement: DYNAMITE will retrofit existing all_models tables with the new column kinmapchi2 and calculate its values for existing models whenever possible

  • New feature: chi2 can now be directly calculated from the kinematic maps when using the LegacyWeightSolver via which_chi2: “kinmapchi2”

  • Improvement: when instantiating the Configuration object, the user can now specify the name of the logfile (several options), avoiding log conflicts with multiple DYNAMITE runs in the same directory

  • Bugfix: Fixed a bug that may cause a crash in case a parameter does not have a minstep value

  • Improvement: DYNAMITE will catch and correct the erroneous parameter generator setting minstep>step by setting minstep=step for non-fixed component parameters

  • Bugfix: Fixed a bug that may occur in the parameter generators (ensures that DYNAMITE creates all possible models)

  • Improvement: now the models of the first two iterations are computed together, better utilizing parallel computing

  • Bugfix: included cmasher in the list of required packages

  • Bugfix: reattempt_failures will no longer result in an error if multiple to-delete models share the same orblib or the orblib directory does not exist

  • Improvement: made DYNAMITE compatible with more Linux distributions

  • Improvement: update publication list

  • Bugfix: fixed wrong version number and copyright year in documentation

Version: 3.0

  • Improvement: DYNAMITE now works with newer versions of Astropy. The new requirement is astropy>=5.0.4

  • New feature: Integrate tube and box orbits in parallel by setting the multiprocessing option orblibs_in_parallel

  • New feature: Added support for new dark halo component type NFW_m200_c (fixed m200_c relation)

  • New feature: The Configuration object parameter reset_existing_output will delete previously existing data and create a new output directory tree

  • Improvement: The presence of datfil/orblib.dat.bz2 and datfil/orblibbox.dat.bz2 is now a more reliable indicator for existing orblibs. In the past, a crash may have resulted in corrupt bz2 files.

  • New feature: add new data-preparation method BayesLOSVD.center_v_systemic

  • New feature: Each model writes a file model_done_staging.ecsv upon completion. After a crash, DYNAMITE will update the all_models table with the completed models’ data and delete any “all_done==False” models

  • New feature: New weight_solver_settings option reattempt_failures for reattempting failed weight solving when an orbit library already exists

  • Improvement: For better tracking, each model folder holds a copy of the config file now (instead of saving the config file in the output folder)

  • New feature: The new model iterator SplitModelIterator calculates orbit libraries and weights consecutively with independently adjustable number of threads

  • Improvement: Cleaned up the legacy_fortran folder and the makefile in it, unused orbgen.f90 and partgen.f90 moved to subfolder

  • Bugfix: Fixed a bug that on rare occasion caused an error when updating the timestamp entry when continuing an aborted run

  • Implement the correction to orbit mirroring introduced in Quenneville et al 2021

  • Implement kinematic maps for BayesLOSVD data

Version: 2.0

  • New feature: Wherever appropriate, the configuration object is now passed to instantiated classes like Plotter, AllModels, Model, the weight solvers, and LegacyOrbitLibrary. This changes the DYNAMITE user interface! Please refer to the tutorials and dev_tests/ scripts on how to use.

  • Bugfix: fixed sorting of the chisquare values in chi2plot so that the best-fit value is plotted last and always visible

  • New feature: upon reading mge data, q values too close to 1 are set to q=0.99999 for numerical stability

  • Updated: Require astropy v4.2 due to ecsv file compatibility problems with later versions

  • Improvement: Make sure DYNAMITE stops with an error if a legacy Fortran executable does not succeed, even if its return code is zero

  • Bugfix: Fixed a bug preventing negative values of logarithmic parameters

  • New feature: the number of configuration file backups can be better controlled by config_reader.Configuration.backup_config_file(...) options

  • Improvement: The bash test script dev_tests/test_all.sh executes a grid of test scenarios (different base scripts with different parameter generators and weight solvers) either locally or via Slurm

  • Improvement: Greatly improved performance of the chi2 plot

  • Bugfix: Fixed a bug in the path in model.Model.get_model_directory()

  • New feature: The new method model.AllModels.get_n_best_models(...) returns the n best models based on their chi2/kinchi2 values

  • New feature: The new method model.AllModels.get_mods_within_chi2_thresh(...) returns all models within a given chi2/kinchi2 threshold

  • Updated: All tests in dev_tests/ now use kinchi2 rather than chi2

Version: 1.0

  • New feature: Added Galahad compilation script that auto-magically downloads and installs the latest galahad + it’s dependencies

  • New feature: Added a script for the preparation of the kinematic data and a tutorial

  • New features: Added Bayes LOSVD solver and a tutorial

  • New feature: Added gridSearch that searches in a regular grid for the bestfit parameters

  • New feature: In addition to the NFW profile, DYNAMITE can fit now a generalised NFW, Hernquist and a Triaxial cored log potential dark matter profile. The type is chosen in the “dh” component of the config file.

  • New feature: All plotting routines from schwpy are implemented in DYNAMITE now

  • New feature: Added multiprocessing such that DYNAMITE can run multiple models simultaneously. The keyword “multiprocessing_settings: ncpus:” is added in the config file

  • Improvement: New (python-based) NNLS solvers are added. The type can be chosen in “weight solver”

  • Improvement: Multiple kinematics data set can be fitted simultaneously

  • Improvement: Changed paramsb and parameter file to “parameters_lum” and “parameters_pot” to avoid confusion. The mass mge and the lum mge can be different now and are added separately in the config file

  • Improvement: Changed the model directory names to avoid directory naming inconsistencies in the future

  • Improvement: Logging added

  • Improvement: The DYNAMITE scrips no longer change the system path

  • Improvement: Added “validate_parset” to the system and its components to avoid incorrect use of DYNAMITE

  • Improvement: Relative/absolute stopping criteria in LegacyGridSearch and GridWalk

  • Improvement: Option for threshold_del_chi2 to be given as fraction of sqrt(2*n_obs)

  • Improvement: “get_orbit_ics” and “get_orbit_library” are split now in LegacyOrbitLibrary

  • Updated: Installation guide and documentation were updated

  • Updated: Replaced Plotbin4dyn with the latest version from plotbin (https://pypi.org/project/plotbin/)

  • Updated: We added a randomNumberGenerator to get reproducible orbit libraries. This number called “random_seed” is included in the config file. Users should put this number to -1

  • Bugfix: A galaxy with position angle of 0 does not cause error when reading in the config file anymore

  • Bugfix: Fix the stars component bug: stellar component was called system.cmp_list[2] before and relied on the stars being the third component. Now this component is called “stars”

  • Bugfix: The plotting did not work correctly in VSC where X11 does not work. We therefore put the matplotlib backend to “Agg”

  • Bugfix: Removed unused import statements and code clean-up