Speaker
Description
I discuss software and algorithm development work in the lattice gauge theory community to develop performance portable software across a range of GPU architectures (Nvidia, AMD and Intel) and corresponding multi scale aware algorithm research to accelerate computation.
An example is given of a large effort to calculate the hadronic vacuum polarisation contribution to the anomalous magnetic moment of the muon, where bespoke multigrid algorithms are being developed and run on six different supercomputers in the USA and the EU.
References
arXiv:2401.16620, 2203.17119, 2203.06777, 2103.05034, 1512.03487
Recent algorithms plenary talk at Lattice 2023 and talk at Algorithms '23.
Significance
Cutting edge lattice gauge theory performance with transformative multigrid algorithms
using GPU hardware that accelerates muon g-2 theory calculations by a factor of around 15x.
| Experiment context, if any | Theory prediction of HVP is critical to muon g-2 at FNAL. |
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