Conference Presentation (After Call)

FZJ-2025-05371

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Benchmarking Lattice QCD Staggered Fermion Kernel Written in Kokkos

Schlepphorst, S. (Corresponding author)FZJ*

2025

Abstract: Lattice quantum chromodynamics (QCD) is a numerical approach to studying the interactions of quarks and gluons, where the fundamental eqautions governing their interactions are discretized to a four dimension spacetime lattice. One of the most costly computations is the inversion of the lattice Dirac operator, a large sparse matrix. Calculating this inversion with iterative solvers leads to many applications of that operator. This study builds on previous work where we implemented the staggered fermion Dirac operator as a benchmark in Kokkos. We investigate the effects of the tiling size in combination with the use of a 4D MDRangePolicy and 7D Views.

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 5111 - Domain-Specific Simulation & Data Life Cycle Labs (SDLs) and Research Groups (POF4-511) (POF4-511)
2. SFB 1639 B02 - Gitterfeldtheorien an der Schwelle zur Exascale-Ära (B02) (537420013) (537420013)

Appears in the scientific report 2025

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