1. Digital transformation of droplet/aerosol infection risk assessment realized on 'Fugaku' for the fight against COVID-19
- Author
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Ando, Kazuto, Bale, Rahul, Li, ChungGang, Matsuoka, Satoshi, Onishi, Keiji, and Tsubokura, Makoto
- Subjects
Computer Science - Computational Engineering, Finance, and Science ,Physics - Fluid Dynamics - Abstract
The fastest supercomputer in 2020, Fugaku, has not only achieved digital transformation of epidemiology in allowing end-to-end, detailed quantitative modeling of COVID-19 transmissions for the first time, but also transformed the behavior of the entire Japanese public through its detailed analysis of transmission risks in multitudes of societal situations entailing heavy risks. A novel aerosol simulation methodology was synthesized out of a combination of a new CFD methods meeting industrial demands, CUBE, which not only allowed the simulations to scale massively with high resolution required for micrometer virus-containing aerosol particles, but also extremely rapid time-to-solution due to its ability to generate the digital twins representing multitudes of societal situations in minutes not week, attaining true overall application high performance; such simulations have been running for the past 1.5 years on Fugaku, cumulatively consuming top supercomputer-class resources and the result communicated by the media as well as becoming official public policies., Comment: 24 pages, 12 figures
- Published
- 2021