PyHEP 2025 - "Python in HEP" Users Workshop (hybrid), CERN

Session

Plenary Session Wednesday (6)

29 Oct 2025, 16:30

222/R-001 (CERN)

Conveners

Plenary Session Wednesday (6)

• Manfred Peter Fackeldey (Princeton University (US))

17. Pythonic GPU Parallelism for HEP with cuda-cccl

Ashwin Srinath

29/10/2025, 16:30

"Long talk"

High-energy physics analyses involve complex computations over large, irregular, nested data structures. Libraries such as Awkward Array have demonstrated that the massive parallelism of GPUs can be applied to accelerate these analyses. However, today this requires significant expertise from both library developers and end users, who must navigate the low-level details of CUDA kernel...

26. Accelerating scientific Python code with dispatching: Graphs and Arrays

Aditi Juneja

29/10/2025, 17:30

Lightning talk

Modern high-energy physics workflows rely heavily on large-scale computation, where performance bottlenecks often emerge as data sizes grow. This talk explores various dispatching mechanisms incorporated in libraries like NetworkX (Graphs), NumPy (Arrays) and scikit-image,...

21. Reviving Formulate

Andres Rios-Tascon (Princeton University)

29/10/2025, 17:40

Lightning talk

The formulate Python package was released in 2018 aimed to be a translation tool between the C++ expressions used ROOT and the Python counterparts used in the Scikit-HEP ecosystem. It worked well for simple expressions, but had serious performance issues when expressions were lengthy and complex. Last year, there was an effort to rewrite the package from scratch to solve these performance...