Top all-time · #13987
Dion Häfner
Personal blog · dionhaefner.github.ioscienceprogrammingai
Dion Häfner's personal blog at dionhaefner.github.io covers science, programming and ai. Since 2021, 5 different Hacker News readers have linked it 8 times, most often “Supercharged high-resolution ocean simulation with Jax”. It is still writing: the last post was on 2026-05-18, and you can follow it by feed.
Too few sampled comments (2) to say how often HN recommends it.?
Why HN links it
HN readers link Dion Häfner's blog for posts on scientific computing, such as a high-resolution ocean simulation built with JAX and an earlier review of moving geophysical models away from Fortran and C.
Summarised by Claude from a sample of 2 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Dion Häfner • About me • Blog
Most-linked posts?
- Supercharged high-resolution ocean simulation with Jax3 people · 3 mentions · first linked 2021-12-03
- Suck-Less Scientific Python2 people · 2 mentions · first linked 2021-07-09
What Hacker News says?
Indeed! Sorry, I was thinking more about the layers but of course JAX is way more than numpy on steroids. (Although it is also that: https://dionhaefner.github.io/2021/12/supercharged-high-reso... ). JAX has a very nice vmap for easy parallelization on SIMD accelerators, and pmap even allows cross-device vectorization with a single line which is just beautiful !
Comment linking /2021/12/supercharged-high-resolution-ocean-simulation-with-jax/
on “PyTorch vs. TensorFlow in 2022”Submitted Supercharged high-resolution ocean simulation with Jax as a story · 90 points
HN discussionThere's an earlier blog post by the same author where they discuss three possible ways of moving away from the Fortran/C status quo towards higher-level models. They mention Julia as one of the routes, but not the one they decided to take: https://dionhaefner.github.io/2021/04/higher-level-geophysic...
Comment linking /2021/04/higher-level-geophysical-modelling/
on “Supercharged high-resolution ocean simulation with Jax”Submitted Bayesian histograms for rare event classification as a story · 74 points
HN discussionSubmitted Supercharged high-resolution ocean simulation with Jax as a story · 4 points
HN discussionSubmitted Suck-Less Scientific Python as a story · 3 points
HN discussionSubmitted Learning to Play Yahtzee with Advantage Actor-Critic (A2C) as a story · 2 points
HN discussionSubmitted Suck-Less Scientific Python as a story · 1 points
HN discussion