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physics.ins-det2026
Mitigating warp divergence in GPU optical photon Monte Carlo: an order of magnitude speedup with Shader Execution Reordering
Gabor Galgoczi
In high energy, nuclear, and medical physics, optical photon transport Monte Carlo is a frequent bottleneck in detector simulation. GPU ray tracing accelerates photon propagation,…
physics.ins-det2025
GPU acceleration of optical photon propagation in low photon yield applications: Opticks for the Electron Ion Collider
Gabor Galgoczi, Kolja Kauder, Maxim Potekhin +3
The bulk of time spent in the simulation of Cherenkov and other scintillation detectors is spent on optical-photon transport, i.e. ray tracing, a task that GPUs are uniquely qualif…