Supercomputer Taps 15,000 GPUs To Rebuild The Early Universe
Scientists have unveiled a supercomputer simulation named Lumina, which is the most detailed window yet into the first two billion years of our universe.
When trying to model the birth of the universe, computational cosmologists are usually forced to choose between simulating vast volumes of space at a coarse resolution or zooming into tiny patches with intricate detail. Lumina changes all that: spanning a cubical region measuring roughly 1.6 billion light-years across, the simulation tracks ordinary matter, dark matter, and radiation across all that space while retaining enough spatial resolution to model individual galaxies, stellar nurseries, and their surrounding gas flows.
Bringing this map life was an international research team that utilized the Frontier supercomputer located at Oak Ridge National Laboratoryin Tennessee. Harnessing more than 15,000 GPUs and 100,000 CPU cores, the simulation begins roughly 45 million years after the Big Bang, in the dark ages. Here, gravity slowly...
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