Dr. John Apostolakis - "GeantV : moving detector simulation into the future"
par
Mondrian
IPHC, Bât. 25
Particle and radiation transport is used in diverse fields from High Energy and Nuclear Physics experiments, medical imaging and treatment to the simulation of the radiation environments of planets. Amongst the current generation of tools the Geant4 toolkit has found widespread use. However, like nearly all of today's HENP software, Geant4 does not exploit key CPU developments of the last 10 years, and in particular vector instructions in commodity CPUs.
A new initiative, the GeantV R&D, has over the past 3 years been launched with the goal of obtaining 2-5 times the throughput performance of the today's Geant4 applications on today's typical commodity CPU hardware. GeantV is aimed also at exploring the computing potential of a variety of emerging hardware from GPU to accelerators, and to harness large number of simple or complex cores, while using a common core set of libraries and modern C++ techniques. And, as part of this project new physics model implementations are being developed to provide predictable accuracy beyond that of existing Geant4 models.
This presentation will give a report on the status of the GeantV R&D and on the upcoming milestones which will bring us closer to answering the degree to which the potential of today's hardware can be harnessed for particle transport.