How to get OPL-CPLEX?

Go to this website. 

Find the label ¡°Get student and faculty editions for free¡± and click on it.

Click ¡°Register¡± (top-right corner).

Type your institutional e-mail address under ¡°Organization-Issued Email Address¡±

Go on with the registration (UiO is among the recognized universities, so the registration should work smoothly).

Once you are registered, sign in.

Type ¡°CPLEX¡± in the search bar (¡°Product search¡±).

Choose the first result (¡°IBM ILOG CPLEX Optimization Studio v12.8 (CJ2IKML)¡±), and click ¡°Add to cart¡±.

Download the software (you can choose among Windows, Linux and Mac versions) and install it normally.