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Hanno Rein

2 years ago

Hanno Rein
2 years ago

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This plot shows the time it takes to integrate the Solar System for 5 billion years. In 1950 it would have taken over a million years. Today it takes 1 day. The bottom right point is for our WHFast512 integrator which uses #AVX512 instructions: astro.theoj.org/article/84547-…

Plot made with data from Sam Hadden: shadden.github.io/nbody_histor….

#astrodon #HPC

WHFast512: A symplectic N-body integrator for planetary systems optimized with AVX512 instructions | Published in The Open Journal of Astrophysics

By Pejvak Javaheri, Hanno Rein & 1 more. A fast direct N-body integrator for gravitational systems, demonstrated using a 40 Gyr integration of the Solar System.

^{astro.theoj.org}