[HN Gopher] Gordon Bell finalist team pushes scale of rocket sim...
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Gordon Bell finalist team pushes scale of rocket simulation on El
Capitan
Author : perihelions
Score : 21 points
Date : 2025-11-23 13:10 UTC (9 hours ago)
(HTM) web link (www.llnl.gov)
(TXT) w3m dump (www.llnl.gov)
| explodes wrote:
| > Researchers used Lawrence Livermore National Laboratory's
| exascale supercomputer El Capitan to perform the largest fluid
| dynamics simulation ever
| ISL wrote:
| That is known to the public.
| pwarner wrote:
| Yeah I was thinking they probably picked a public use case
| that looks a lot like their classified workloads... The
| article mentions the simulation ran quickly, the time spent
| was debugging. Suggests to me the real classified system will
| be much more capable.
| srvmshr wrote:
| True. Applications as these go back a few decades. From the
| news buzz when it was launched, ASCI White was similarly used
| in early '00s to understand nuclear explosions and shockwave
| propagation (instead of relying on live tests) - classic CFD
| problems[1] Successor supercomputer clusters were also used
| to do weapon design & nuclear physics simulations. One
| supercomputer IIRC even simulated a tornado genesis.[2]
|
| I can only imagine the classified applications must have
| grown ten-fold in complexity in the interim.
|
| [1] https://en.wikipedia.org/wiki/ASCI_White
|
| [2] https://news.wisc.edu/a-scientist-and-a-supercomputer-re-
| cre...
| thrwaway55 wrote:
| Anyone else get confused on this thinking it was a legacy OSX
| version. The title should include super computer to clarify.As
| one interpretation implies some code golf.
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