GPU-ACCELERATED SPIN DYNAMICS AND ANALYSIS FOR RHIC

The elucidation of nucleon spin structure benefits from highly polarized beams in storage rings. Accurate and fast spin dynamics simulations are a valuable tool for optimizing beam polarization. We describe the integrators and the performance of a new spin-orbit tracking code. These integrators use quaternions and Romberg quadratures to accelerate both the computation and the convergence of spin rotations. We exploit the inherently data-parallel nature of spin tracking to accelerate our algorithms on graphics processing units.