The KM3NeT collaboration is building a neutrino telescope at two locations at the bottom of the Mediterranean Sea. The telescope is used to investigate properties of neutrinos; neutrinos are elementary particles that are not well understood yet. Furthermore, the telescope searches for neutrinos from the cosmos and performs neutrino astronomy.
Currently, KM3NeT faces challenges in simulating high-energy events due to the immense computational resources required for full photon tracking. The eScience Center is collaborating with Nikhef to build a GPU-enabled photon tracker, speeding up the simulations by a large factor.