The role of Task Force for R&Ds is to
- Promote longer-term R&D efforts on the exploitation of emerging technologies, computing architectures or software architectural revisions, and new or better physics ideas that would be beneficial to Geant4.
- Make timely assessments on these R&Ds for their feasibility, benefits and required efforts.
The Task Force has identified three development axis that should be followed in order to evolve Geant4 to meet the requirements of the forthcoming experiments:
- Improvement, optimization, modernization and refactoring of the existing Geant4 code
- Development and integration of fast simulation techniques
- Investigation of the potential use of accelerators
Several R&D activities have started exploring the potential evolution in those three areas and currently they include:
- Geant4 task-based prototype
- Stateless Geant4 prototype
- Single precision usage in simulation components
- Instruction and data cache optimizations
- Alternative e-/e+ and gamma transport simulation highly specialised for HEP detector simulations
- Electromagnetic shower parametrisation
- Machine Learning-based fast simulation tools
- Validation tools for fast simulation of electromagnetic showers
- GPU-based simplified simulation prototypes
- GPU vendor libraries in particle transport
- Portability frameworks for accelerator-based particle transport
- Celeritas - Exascale particle transport prototype
- Full integration of Opticks with Geant4
- AdePT - Accelerated demonstrator of electromagnetic Particle Transport
The meetings of the Task Force are open to the public and contributions are welcome.
Task Force coordinator: Witek Pokorski (CERN)
Deputy Task Force coordinator: Jonathan R. Madsen (NERSC/LBL)