Accelerating Computation of a Reduced Order Model of a Structural System Resulting from Craig–Bampton Reduction Using GPU Programming Piotr Gorecki General Electric Company Polska sp. z o.o., Warsaw Miłosz Kalinowski Lukasiewicz Research Network - Institute of Aviation, Engineering Design Center, Warsaw Łukasz Jeziorek Lukasiewicz Research Network - Institute of Aviation, Engineering Design Center, Warsaw