Jülich, 19 February 2018 - The human brain is an organ of incredible complexity, composed of a hundred billion interconnected nerve cells. However, even with the help of the most powerful supercomputers available, it is currently impossible to simulate the exchange of neuronal signals in networks of this size. Researchers of Forschungszentrum Jülich, with an international team of scientists, have made a decisive step towards creating the technology to achieve simulations of brain-scale networks on future supercomputers of the exascale class. Simultaneously, the new algorithm significantly speeds up brain simulations on existing supercomputers.