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LP
From OpenOpt
Linear Problems (LP)
- subjected to
- OpenOpt LP example
- FuncDesigner LP example 1, example 2, large-scale sparse example
- Export to MPS format files
LP solvers connected to OpenOpt:
| Solver | License | Made by | Info |
|---|---|---|---|
| lpSolve | LGPL | Michel Berkelaar | Use URL or software channel for download and install lpsolve+Python binding. For Windows use *.exe files; for Linux: download lpsolve and its python wrapper (_source.tar.gz and _Python_source.tar.gz files from sourceforge), in subdirectory "lpsolve55" run "sh ccc", copy ./lpsolve55/bin/{your_arch}/liblpsolve55.so to /usr/lib or /usr/local/lib (former requires admin rights, latter requires you have LD_LIBRARY_PATH included the directory), then go to directory /extra/Python and run "python setup.py install" with admin rights. |
| pclp (since OO v. 0.31) | MIT | Translated from Octave code to Python and placed under MIT licence by Enzo Michelangeli with permission explicitly granted by the original author, Prof. Kazunobu Yoshida. | Some Python cycles have been replaced by vectorization by Dmitrey, and possibility to use scipy.sparse matrices has been added. Unfortunately, both dense and sparse problems still run much slower (sometimes in several orders) than other LP solvers mentioned here, or even some converters (e.g. nlp:ipopt). Maybe, Unladen Swallow will improve the situation. |
| glpk | GPL | Andrew Makhorin | Requires installation glpk + CVXOPT. Ensure CVXOPT setup.py file has line BUILD_GLPK=1 or use software install/update channels like aptitude, apt-get etc |
| cvxopt_lp | GPL3 | Lieven Vandenberghe, Joachim Dahl | requires CVXOPT installed |
| (since v. 0.33) cplex |
|
IBM (after ILOG acquisition) | requires cplex and its Python API installed |
| converter to nlp (premature) | Dmitrey | Example: r = p.solve('nlp:ipopt', plot=1). Can handle x0. Recommended solvers (mb require installation, see NLP doc page): ipopt, algencan. For ralg reducing p.ftol and p.xtol is usually required (it's intended to be fixed in future versions) | |
| FuturePlans: CLP, mosek, GuRoBi, Xpress |
