Minotaur: a mixed-integer nonlinear optimization toolkit. (English) Zbl 1476.65099

Summary: We present a flexible framework for general mixed-integer nonlinear programming (MINLP), called Minotaur, that enables both algorithm exploration and structure exploitation without compromising computational efficiency. This paper documents the concepts and classes in our framework and shows that our implementations of standard MINLP techniques are efficient compared with other state-of-the-art solvers. We then describe structure-exploiting extensions that we implement in our framework and demonstrate their impact on solution times. Without a flexible framework that enables structure exploitation, finding global solutions to difficult nonconvex MINLP problems will remain out of reach for many applications.


65K05 Numerical mathematical programming methods
90C11 Mixed integer programming
90C30 Nonlinear programming
90C26 Nonconvex programming, global optimization
Full Text: DOI


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