Add Knitro solver support #532
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- Add Knitro detection to available_solvers list - Implement Knitro solver class with MPS/LP file support - Add solver capabilities for Knitro (quadratic, LP names, no solution file) - Add tests for Knitro solver functionality - Map Knitro status codes to linopy Status system
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Great work @FabianHofmann! |
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…feature/add-knitro-solver # Conflicts: # linopy/solvers.py
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@FabianHofmann: I have modified the code (thanks Daniele Lerede for your contributions and support). Could you please review it and let me know if it can be merged Thanks :) |
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finozzifa
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Feb 11, 2026
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Feb 11, 2026
The goal of this pull request is add support for the `knitro` solver in the `run_solver.py` script. The interface between `linopy` and the `knitro` Python API is introduced in this [pull request.](PyPSA/linopy#532) ## Changes ### `run_solver.py` I have added a `knitro` specification for the following functions: - `def get_solver` - `def def is_mip_problem` - `def get_reported_runtime` - `def get_duality_gap` ## Test I tested the integration between knitro and linopy and the changes to run_solver.py on the benchmark [pypsa-eur-elec-trex-3-12h.lp](https://storage.googleapis.com/solver-benchmarks/pypsa-eur-elec-trex-3-12h.lp). I get: `{"runtime": 4.476548100999992, "reported_runtime": 3.8160810470581055, "status": "ok", "condition": "optimal", "objective": 7398198432.386027, "duality_gap": null, "max_integrality_violation": null}` The value of the objective function is compatible to those found [here](https://openenergybenchmark.org/dashboard/benchmark-set/pypsa-eur-elec-trex) --------- Co-authored-by: Daniele Lerede <[email protected]> Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
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Summary
This PR adds support for the Artelys Knitro solver to linopy.
Changes
knitroPython package to the available solvers listKnitrosolver class with support for solving MPS/LP filesImplementation Details
The Knitro solver implementation follows the existing patterns in linopy:
Testing
Notes
solve_problem_from_model) is not implemented in this initial version but can be added laterknitropackage separately and have a valid license to use this solverCloses #[issue_number] (if applicable)