I am working on an optimization problem which has 60 optimization variables to get minimum objective function. which solver would be best for this problem? right now I am using multistart with fmincon.

The objective function is to minimize variance of displacement which is a nonlinear function.

Answer 1

[Alan Weiss]

If your problem is smooth and you are looking for a global minimum, then those sound like the right choices, See Table for Choosing a Solver.

Alan Weiss

MATLAB mathematical toolbox documentation