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arXiv · 2610.35526

Toward Compute-Bound Lattice-QCD Software

Anthony V. Grebe
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Abstract

Multi-right-hand-side multigrid inverters for lattice QCD are much less memory constrained than single-right-hand-side Krylov solvers, so the upper bound on efficiency of modern solvers is much higher than what was historically possible. This work presents a reanalysis of roofline estimates to reflect this new reality. It also describes the qc library, which implements multi-right-hand-side multigrid at an efficiency that can exceed 50% of the processor roofline.

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Anthony V. Grebe. 2026-10-26. Toward Compute-Bound Lattice-QCD Software. https://arxiv.org/abs/2610.35526

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