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Jonathan Diegelman - Modeling Spacecraft Separation Dynamics in Julia

The Julia Programming Language · 12.4K views · 2021-03-09 · 16:04

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Overview

A JuliaCon talk by a NASA Launch Services Program engineer on modeling spacecraft separation dynamics in Julia. He describes replacing a Simulink-based workflow for checking launch vehicle separation requirements with Julia and ModelingToolkit, with large speedups and much shorter code.

On Hacker News

Cited again and again as the concrete case study behind the claim that NASA got a 15,000x speedup moving from Simulink to Julia.

Recommended by 2 HN people across 2 months · HN mentions 2021–2023

Topics

Data science & statisticsSpace exploration & spaceflightPython, Ruby & scripting languages
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julianasasimulinkmodelingtoolkitsimulationaerospace

What people said

eggy · 2023-01 · Recommendation

<<was given at a SIAM conference and the recording can be found here: [VIDEO] >> At 14:00, the interactive slider exploration due to the speed is amazing. Over 500 Monte Carlo simulations in less than 60ms.

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NicolasL-S · 2022-09 · Recommendation

You should check out this case study of migrating Simulink to Julia at NASA: [VIDEO] From Simulink to Julia, his code went from 1000 lines to 50 lines and ran 15,000x faster.

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ChrisRackauckas · 2023-05 · Reference

> Definitely 15000 times faster than MATLAB as claimed by JuliaComputing can be achieved with such seemingly concrete and realistic benchmarks. I believe you're talking about NASA Launch Services engineers claiming Julia's ModelingToolkit simulations outperformed Simulink by 15,000x? That claim was of course not made by Julia Computing or anyone affiliated by Julia Computing, which is pretty clear because the person who makes the claim very clearly describes his affiliation at the beginning of the video. The source is here: [VIDEO] , at 12:55. You did watch the whole video to understand the application and the caveats etc. instead of just reading the headline and immediately coming to a conclusion, right?

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Sources

Video by The Julia Programming Language, played through YouTube.

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