This release does not only come with performance improvements, in particular for general nonlinear problems, but also with improvements of the interface:
- Improvement on NLP:
- New dynamic scaling of the limited-memory Quasi-Newton BFGS, more robust and efficient for all algorithms. This leads to an average performance improvement of 20% on general nonlinear instances when using this Hessian approximation.
- New Knitro API functions:
- Allow deleting or changing linear or constant structures of a problem and then re-solving.
- Allow to retrieve information about the feasibility of the variables and constraints after both the presolve and solving process, giving a detailed analysis of the complex infeasibilities in nonlinear problems.
- Allow users to provide their own customized linear algebra solver, which is useful when the problem has a very specific structure and can be solved with highly specialized routines. This feature was recently applied with success to an industrial problem and enabled a 2x overall speedup.
In addition, Artelys Knitro 12.4 brings:
- Improvement on MINLP:
- Improved heuristics strategies
- Early integer-feasible solution found on 15% more instances
- Newly supported platforms:
- Support for the new Apple M1 chip
— We are pleased to announce that Artelys Knitro 13 is now available! This new version focuses on performance improvements for both continuous and mixed-integer general nonlinear problems.
Artelys contributes significantly to the European Commission’s Hydrogen and Decarbonised Gas Package
— Artelys has significantly contributed to the Impact Assessment of the Gas Package by making use of the EU energy system model METIS.
— In association with Orléans Métropole (circa 300 000 inhabitants, France), Artelys has set up alongside the metropolitan services a public web platform to monitor territorial energy datasets.
Successful first auction of the Belgian Capacity Remuneration Mechanism enabled by Artelys market clearing engine
— A Capacity Remuneration Mechanism (CRM) was recently introduced in Belgium by Elia, the country’s Transmission System Operator, in accordance with the Belgium ‘Electricity Act’.
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