title: Parallel computing with graphics processing units for high-speed Monte Carlo simulation of photon migration.
abstract: General-purpose computing on graphics processing units (GPGPU) is shown to dramatically increase the speed of Monte Carlo simulations of photon migration. In a standard simulation of time-resolved photon migration in a semi-infinite geometry, the proposed methodology executed on a low-cost graphics processing unit (GPU) is a factor 1000 faster than simulation performed on a single standard processor. In addition, we address important technical aspects of GPU-based simulations of photon migration. The technique is expected to become a standard method in Monte Carlo simulations of photon migration.
authors.affiliation: Lund University, Department of Physics, Lund 22100, Sweden. erik.alerstam@fysik.lth.se
authors.forename: Erik
authors.initials: E
authors.lastname: Alerstam
authors.forename: Tomas
authors.initials: T
authors.lastname: Svensson
authors.forename: Stefan
authors.initials: S
authors.lastname: Andersson-Engels
mesh_terms: D003196:Computer Graphics / Q000295:instrumentation*; D003198:Computer Simulation; D003201:Computers; D007090:Image Interpretation, Computer-Assisted / Q000295:instrumentation*; D008027:Light; D015233:Models, Statistical; D009010:Monte Carlo Method; D017785:Photons; D012542:Scattering, Radiation; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*