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Multi-Scale Light-Matter Dynamics in Quantum Materials on Aurora PVC

IXPUG Annual Conference 2025 technical talk "Multi-Scale Light-Matter Dynamics in Quantum Materials on Aurora PVC" presented by Nariman Piroozan, Intel Corporation April 15, 2025. Co-Authors: Taufeq Mohammed Razakh, University of Southern California; Thomas Linker, Stanford University; Ye Luo, Argonne National Laboratory; Ken-ichi Nomura and Aiichiro Nakano, University of Southern California. Abstract: Light-matter dynamics in topological quantum materials enables ultralow-power, ultrafast devices. A challenge is simulating multiple field and particle equations for light, electrons, and atoms over vast spatiotemporal scales on Exaflop/s computers with increased heterogeneity and low-precision focus. We present a paradigm shift that solves the multiscale/multiphysics/heterogeneity challenge harnessing hardware heterogeneity and low-precision arithmetic. Divide-conquer recombine algorithms divide the problem into not only spatial but also physical subproblems of small dynamic ranges and minimal mutual information, which are mapped onto best-characteristics matching hardware units, while metamodel-space algebra minimizes communication and precision requirements.

Event Name

IXPUG Annual Conference 2025

Keywords

IXPUG Annual Conference 2025,Quantum Molecular Dynamics,High Performance Computing,Multiscale light-matter dynamics

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