GPU Solving can be activated in Options - Application Settings - Generative Design Solver. The GPU option can be used if a Nvidia Quadro Graphics Card is either locally or remotely available. MSC Apex Generative Design automatically checks how many Nvidia Quadro GPUs are available and will use a suitable number. The option influences the calculation time and reduces the duration significantly depending on the graphics cards and the Complexity of the model setup.
For information regarding GPU Solving installation have a look here.