TOMLAB /MINOS

The TOMLAB /MINOS toolbox efficiently integrates the three well-known solvers MINOS, QPOPT, and LPOPT, developed by the Stanford Systems Optimization Laboratory (SOL), with Matlab and TOMLAB.

MINOS is a large-scale sparse general nonlinear solver, but solves also sparse linear and quadratic problems efficiently.
QPOPT is a dense convex quadratic solver that also solves non-convex quadratic programs.
LPOPT is a special version of QPOPT that solves dense linear programming problems efficiently.

Read more about the above mentioned SOL solvers in the TOMLAB /MINOS User's Guide.

Main features

• Other TOMLAB solvers are using MINOS, QPOPT and LPOPT as subproblem solvers resulting in faster and more robust code compared to only using the TOMLAB Base Module.
   
• The dense QPOPT code is implemented to efficiently handle Matlab sparse arrays.
   
• Using the Tomlab graphical interface (GUI) all solver parameters and features are selectable.
   
• It is easy to use warm starts for the SOL solvers, and further speed up sequences of optimization solutions.
   
• In TOMLAB /MINOS the mixed-integer linear programming solver mipSolve runs much faster than in the TOMLAB Base Module due to the use of MINOS (or LPOPT) as linear subproblem solver with warm starts.
   
• The SPECS file input format, that is used by all SOL solvers when running non-Matlab, is also possible to use.