From a numerical perspective, large speedups are to be seen on some classes of ill-conditioned models. This is due to new preconditioning techniques applied to the subproblems solved by conjugate gradient method in the Knitro interior-point/barrier algorithms. Furthermore, Artelys Knitro 10.3 offers several improvements to the internal linear algebra and linear solvers used internally for better robustness and efficiency.
• Significant improvements in large-scale least-squares models, solving the instances 10 times faster!
• Improvements in the “feasibility restoration phase” used when Knitro is struggling to get feasible allowing faster detection of infeasible models.
• Overall efficiency and robustness improvements on general nonlinear models as well as significant improvements in efficiency on models with integer variables.
— Artelys has developed an interactive web-based model of an interconnected electricity grid, which TenneT uses on its website to present the key challenges of managing its network.read more
— Check out the new version of Artelys Knitro! Artelys Knitro 12 release comes with a brand-new Julia interface and clear improvements on mixed-integer models (MIP/MINLP).read more
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