Madgraph5 GPU development

Tuesday 15 Sept 2026, 16:00 → 17:00 Europe/Zurich

513/R-070 - Openlab Space (CERN)

16:00 → 16:10 News

16:10 → 16:30 Topical discussion

Speaker: Dr All

Agenda

Actions

Daniele

• Complete the MG5/MG7 validation runs:
  • use MadNIS train_batches;
  • include the previously missing processes and V+jets;
  • investigate the 3W discrepancy, including sde_strategy to 2 and/or FD gauge.
• Repeat the CPU benchmarks on hardware with native 512-bit AVX-512 support.
• Update the validation/performance plots, showing MG5 and MG7 uncertainties separately and considering alternative representations.
• Coordinate the merging of the large renaming PR.

Theo

• Finalize and send the missing MadSpace and Madboard sections for the paper.
• Investigate the MadNIS training convergence issue and, once resolved, open the reproducibility PR.
• Prepare the final performance plots for the ML4Jets plenary by mid-September.

Olivier

• Finish the MadSpin paper work for MG5 and then continue with the MG7 part.

Collaboration

• Close the PRs (should be 2 of them) blocking code splitting, then merge the code-splitting PR.

Open points

• Daniele, Olivier and Theo: decide the default configuration for systematics, in particular scale and PDF variations.

16:30 → 16:50 Round table

16:50 → 17:00 AoB