←back to thread

El Capitan: New supercomputer is the fastest

(spectrum.ieee.org)
93 points rbanffy | 1 comments | 19 Nov 24 20:52 UTC | HN request time: 0.2s | source
Show context
olao99 ◴[19 Nov 24 21:23 UTC] No.42188229[source]▶
I fail to understand how these nuclear bomb simulations require so much compute power.

Are they trying to model every single atom?

Is this a case where the physicists in charge get away with programming the most inefficient models possible and then the administration simply replies "oh I guess we'll need a bigger supercomputer"

replies(10): >>42188257 #>>42188268 #>>42188277 #>>42188283 #>>42188293 #>>42188324 #>>42189425 #>>42189704 #>>42189996 #>>42190235 #
1. GemesAS ◴[20 Nov 24 02:13 UTC] No.42190235[source]▶
Modern weapon codes couple computationally heavy physics like radiation & neutron transport, hydrodynamics, plasma, and chemical physics. While a 1-D or 2-D simulation might not be too heavy in compute often large ensembles of simulations are done for UQ or sensitivity analysis in design work.