# Nbabel nbody integrator speed up

**URL:** https://discourse.julialang.org/t/nbabel-nbody-integrator-speed-up/51712
**Category:** Performance
**Tags:** question, review
**Created:** [December 12, 2020, 11:26am UTC](https://discourse.julialang.org/t/nbabel-nbody-integrator-speed-up/51712 "2020-12-12T11:26:19Z")
**Posts on this page:** 1
**Showing post:** 30

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### Author: ![Skoffer](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/skoffer/32/378_2.png) [@Skoffer](https://discourse.julialang.org/u/Skoffer)
#### Post date: [December 14, 2020, 10:42am UTC](https://discourse.julialang.org/t/nbabel-nbody-integrator-speed-up/51712/30 "2020-12-14T10:42:40Z")

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One more update: [https://gist.github.com/Arkoniak/5e52e111082f39d21a2f00ba2dbd1049](https://gist.github.com/Arkoniak/5e52e111082f39d21a2f00ba2dbd1049)

This is threaded version with split balancing.

With 4 threads on i7-7700HQ CPU @ 2.80GHz

- 14 sec for 1k
- 35 sec for 2k

I’ve used command `time julia -O3 nbabel4.jl ../data/input1k`, so this timing includes all compilations.

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_[View the full topic](https://discourse.julialang.org/t/nbabel-nbody-integrator-speed-up/51712)._