AMD scaling results
Having a lot of fun scaling up massive Python/JAX physics simulations on the Frontier supercomputer with AMD MI250X GPUs -- currently hitting 3 billion cell-updates/sec on a 2048^3 resolution run 🚀
I'm excited to share jaxion, a differentiable Python/JAX library for fuzzy dark matter (axions) + gas + stars, scalable on multiple GPUs
⭐️repo: github.com/JaxionProjec...
📚docs: jaxion.readthedocs.io
Feedback + collaborations welcome!
Oops, typo above: Should be 4.3*10^-6
We're hiring Flatiron Research Fellows & Software Fellows at the @flatironinstitute.org CCA. These independent postdoc positions offer outstanding opportunities for collaboration, computation, and scientific growth in NYC: apply.interfolio.com/173402 apply.interfolio.com/173403
Here's an example of Google search bar getting it wrong: answer should be 4.3*10^-3
I noticed Google search is no longer reliable for quick unit conversions & calculations.
So I built a simple online calculator
Give it a spin: pmocz.github.io/online-unit-...
N-body simulation
5 years ago, a ~100-line #Python N-body code kicked off my blogging journey. Today, I’ve rewritten it in JAX for blazing fast performance and ability to solve inverse problems. 🌀💥 Check it out here: philip-mocz.medium.com/create-your-...
Our dog is part of this fundraiser for the Progressive Animal Welfare Society (PAWS). Please vote for her or donate if you feel like it! 🐾
americasfavpet.com/2025/lilibet...
Excited to be at Supercomputing 24 #SC24 this week! Catching up with friends and colleagues, meeting new people, and catching the latest advances in high-performance computing. Booths are being set up:
I may occasionally share a picture of my wife's and my puppy too
Hi everyone, I'm re-introducing myself with the large influx of newcomers here! I'm a computational physicist and sometimes blog intro to numerical simulations in Python. All my code is at github.com/pmocz and tutorials at philip-mocz.medium.com
Thanks, Mike! I'm excited to return to open-source science
I’m excited to share that I’m joining the Flatiron Institute as a software engineer to develop open-source (astro)-physics software and MESA at the Center for Computational Astrophysics
Comparison of CFD methods
Interested in how different methods for computational fluid dynamics compare? I'm sharing some intro Python scripts on solving the isothermal compressible Euler equations with Finite Volume, Spectral, Lattice-Boltzmann, and SPH methods here: github.com/pmocz/cfd-co...
Finite difference simulation of wave equation (double-slit experiment)
Hi everyone! I like to share intro Python tutorials on simulation methods. Here's an almost one-liner at its core on solving the wave equations with finite difference. 👉 Follow me for more! philip-mocz.medium.com/create-your-...
Interested in creating your own numerical methods for computational physics? I've written a series of intro tutorials with Python code on my github that I'd like to share: https://medium.com/@philip-mocz
AAS job register statistics
I was looking at archived data on the aasjob register, limited to R1 TT jobs in the US in astro. Positive growth in 2022. Does anyone know why? Is it make-up from the drop during the pandemic?
With advances in AI and compute, I'm thinking we'll see in our lifetime cosmological simulations with initial conditions to reproduce our local galaxy population. Sims. may move from being statistically representative to trying to recreate the real thing
Setting up my bluesky
