All Stories

  1. Assessing a RISC-V Accelerator for Cross-Section Lookup in Chipyard

    Article • November 2025, ACM (Association for Computing Machinery)

    Mr John R Tramm

  2. Early Application Experiences on Aurora at ALCF: Moving From Petascale to Exascale Systems

    Article • May 2024, ACM (Association for Computing Machinery)

    Mr John R Tramm

  3. Efficient algorithms for Monte Carlo particle transport on AI accelerator hardware

    Article • Computer Physics Communications, May 2024, Elsevier

    Mr John R Tramm

  4. Application of the Random Ray Method to Global Variance Reduction in Radiation Shielding Problems

    Article • January 2024, American Nuclear Society (ANS)

    Mr John R Tramm

  5. Language and design evolution of the OpenMC Monte Carlo particle transport code

    Article • EPJ Nuclear Sciences & Technologies, January 2024, EDP Sciences

    Mr John R Tramm

  6. Performance Portable Monte Carlo Particle Transport on Intel, NVIDIA, and AMD GPUs

    Article • EPJ Web of Conferences, January 2024, EDP Sciences

    Mr John R Tramm

  7. The Random Ray Method Applied to Fixed Source Transport Problems

    Article • January 2024, American Nuclear Society (ANS)

    Mr John R Tramm

  8. The Random Ray Method Versus Multigroup Monte Carlo: The Method of Characteristics in OpenMC and SCONE

    Article • Nuclear Science and Engineering, November 2023, Taylor & Francis

    Mr John R Tramm

  9. Hardware Specialization: Estimating Monte Carlo Cross-Section Lookup Kernel Performance and Area

    Article • November 2023, ACM (Association for Computing Machinery)

    Tomohiro Ueno, Mr John R Tramm

  10. Just-in-Time Compilation and Link-Time Optimization for OpenMP Target Offloading

    Article • January 2022, Springer Science + Business Media

    Johannes Doerfert Doerfert, Mr John R Tramm

  11. Immortal rays: Rethinking random ray neutron transport on GPU architectures

    Article • Parallel Computing, December 2021, Elsevier

    Mr John R Tramm

  12. ARRC: A random ray neutron transport code for nuclear reactor simulation

    Article • Annals of Nuclear Energy, February 2018, Elsevier

    Mr John R Tramm

  13. The Random Ray Method for neutral particle transport

    Article • Journal of Computational Physics, April 2017, Elsevier

    Mr John R Tramm

  14. A task-based parallelism and vectorized approach to 3D Method of Characteristics (MOC) reactor simulation for high performance computing architectures

    Article • Computer Physics Communications, May 2016, Elsevier

    Mr John R Tramm

  15. Memory bottlenecks and memory contention in multi-core Monte Carlo transport codes

    Article • Annals of Nuclear Energy, August 2015, Elsevier

    Mr John R Tramm

  16. Data decomposition in Monte Carlo neutron transport simulations using global view arrays

    Article • The International Journal of High Performance Computing Applications, March 2015, SAGE Publications

    Mr John R Tramm

  17. Performance Analysis of a Reduced Data Movement Algorithm for Neutron Cross Section Data in Monte Carlo Simulations

    Article • January 2015, Springer Science + Business Media

    Mr John R Tramm

  18. Power Profiling of a Reduced Data Movement Algorithm for Neutron Cross Section Data in Monte Carlo Simulations

    Article • November 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Mr John R Tramm

  19. Application power profiling on IBM Blue Gene/Q

    Article • September 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Mr John R Tramm