2.5.0

Highlights

In the 2.5.0 release of the EMAworkbench we introduce a new experimental MPIevaluator to run on multi-node (HPC) systems (#299, #328). We would love feedback on it in #311.

Furthermore, the pair plots for scenario discovery now allow contour plots and bivariate histograms (#288). When doing Prim you can inspect multiple boxes and display them in a single figure (#317).

Breaking changes

From 3.0 onwards, the names of parameters, constants, constraints, and outcomes must be valid python identifiers. From this version onwards, a DeprecationWarning is raised if the name is not a valid Python identifier.

What's Changed

🎉 New features added

• Improved pair plots for scenario discovery by @steipatr in #288
• Introducing MPIEvaluator: Run on multi-node HPC systems using mpi4py by @EwoutH in #299
• inspect multiple boxes and display them in a single figure by @quaquel in #317

🛠 Enhancements made

• Enhancement for #271: raise exception by @quaquel in #282
• em_framework/points: Add string representation to Experiment class by @EwoutH in #297
• Speed up of plot_discrete_cdfs by 2 orders of magnitude by @quaquel in #306
• em_framework: Improve log messages, warning and errors by @EwoutH in #300
• analysis: Improve log messages, warning and errors by @EwoutH in #313
• change to log message and log level in feature scoring by @quaquel in #318
• [WIP] MPI update by @quaquel in #328

🐛 Bugs fixed

• Fix search in Readthedocs configuration with workaround by @EwoutH in #264
• bugfix introduced by #241 in general-introduction from docs by @quaquel in #265
• prim: Replace deprecated Altair function by @EwoutH in #270
• bugfix to rebuild_platypus_population by @quaquel in #276
• bugfix for #277 : load_results properly handles experiments dtypes by @quaquel in #280
• fixes a bug where binomtest fails because of floating point math by @quaquel in #315
• make workbench compatible with latest version of pysd by @quaquel in #336
• bugfixes for string vs bytestring by @quaquel in #339

📜 Documentation improvements

• Drop Python 3.8 support, require 3.9+ by @EwoutH in #259
• readthedocs: Add search ranking and use latest Python version by @EwoutH in #242
• docs/examples: Always use n_processes=-1 in MultiprocessingEvaluator by @EwoutH in #278
• Docs: Add MPIEvaluator tutorial for multi-node HPC systems, including DelftBlue by @EwoutH in #308
• Add Mesa example by @steipatr in #335
• Fix htmltheme of docs by @quaquel in #342

🔧 Maintenance

• CI: Switch default jobs to Python 3.12 by @EwoutH in #314
• Reorganization of evaluator code and renaming of modules by @quaquel in #320
• Replace deprecated zmq.eventloop.ioloop with Tornado's ioloop by @EwoutH in #334

Other changes

• examples: Speedup the lake_problem function by ~30x by @EwoutH in #301
• Create an GitHub issue chooser by @EwoutH in #331
• Depracation warning for parameter names not being valid python identifiers by @quaquel in #337

Full Changelog: 2.4.0...2.5.0