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DONLP2 is designed to perform minimization of an (in general nonlinear) differentiable real function subject to (in general nonlinear) inequality and equality constraints. The method implemented is a sequential equality constrained quadratic programming method (with an active set technique) with an alternative usage of a fully regularized mixed constrained subproblem in case of nonregular constraints. It uses a slightly modified version of the Pantoja-Mayne update for the Hessian of the Lagrangian, variable dual scaling and an improved Armijo-type stepsize algorithm.. Bounds on the variables are treated in a gradient-projection like fashion.

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Targeted Platforms:

Fortran or C platform

Software/Hardware Requirements:

Fortran (f77, f90, or f2c) or C compiler

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