Geant4 - Current and Future : A Snowmass 2013 White Paper

TL;DR

This white paper discusses the ongoing and planned developments of the Geant4 simulation toolkit, highlighting SLAC's leadership in evolving its features, including multithreading and GPU integration, for future scientific applications.

Contribution

It details SLAC's role in advancing Geant4, focusing on multithreading, new application domains, and technological integration like GPUs.

Findings

Implementation of multithreading in Geant4

Exploration of GPU acceleration for simulations

Future development plans for Geant4 features

Abstract

The US involvement in Geant4 started with its adoption by the BaBar experiment at SLAC in 1997 and the subsequent creation of a group at SLAC supporting BaBar and contributing to Geant4 development. SLAC has provided the leadership of the international Geant4 Collaboration for the recent years and carries major responsibilities for evolutionary development of the existing code with work to implement multithreading and explore new application domains as well as new technologies such as GPUs. This paper presents the current and the future developments being carried by the SLAC Geant4 team.