Parallel computing with graphics processing units for high-speed Monte Carlo simulation of photon migration.
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.
Alerstam
Erik
E
Lund University, Department of Physics, Lund 22100, Sweden. erik.alerstam@fysik.lth.se
Svensson
Tomas
T
Andersson-Engels
Stefan
S
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*