Dynamic stop condition

[yhamadi75]

Hi Antonio,
I’m working on a custom convergence criterion that I can compute externally (based on the solutions produced in evaluate()). Once I detect convergence, I want to stop the algorithm cleanly.

On sequential runs, try/except works, however, when using multiprocessing, it is not possible to exit the Pool cleanly.

Any guidance or examples would be much appreciated! Thanks!

[ajnebro]

Hi.
If you take a look to some of the examples (e.g.,. https://github.com/jMetal/jMetalPy/blob/main/examples/multiobjective/nsgaii/nsgaii_standard_settings.py), you will see that a termination criterion is an instance of a class that you can define here: https://github.com/jMetal/jMetalPy/blob/main/src/jmetal/util/termination_criterion.py

By using a termination object, the algorithm stops cleanly at the beginning of the next iteration.

Antonio