New presolve operations for integer variables and additional Mixed integer Rounding cuts are now available. These new cuts are automatically derived from nonlinear constraints. This feature significantly increases the number of problem classes for which cuts can be generated.
Those new cuts have been tested on a subset of instances derived from CMU-IBM library. As illustrated above, the additional cuts derived from nonlinear constraints (only these cuts are presented in the chart) significantly reduce the root node integrality gap.
This version also includes a completely updated MATLAB interface integrating dedicated solve functions for many optimization problems. These dedicated functions exploit as much as possible the problem structure, leading to significant performance improvements, especially for LP/QP/QCQP problems.
Additional features of Artelys Knitro 12.1:
- The Python interface now supports the SciPy format to solve NLP instances.
- Improved performance on MPEC problems thanks to new presolve operations.
- Exporting of linear and quadratic instances in MPS file format is now available.
- General performance on large-scale NLP and SOCP instances.
— 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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