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Carlos Castillo Passi

@cncastillo.bsky.social
122 followers 105 following 22 posts

Postdoc at Stanford. Joint PhD graduate from KCL and UC. #JuliaLang enthusiast. Leveraging technology to advance healthcare. MRI research. www.github.com/cncastillo

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Reposted by Carlos Castillo Passi
Jacob S. Zelko @thecedarprince.bsky.social · 10/03/2026
Published a JuliaHealth proceedings paper: "Bringing Julia to Health: A Concise Overview of JuliaHealth"! 🎉 As the ecosystem continues to grow, I am excited to have this as a community reference and overview. 🌐 Would love your thoughts! 🤓 Catch us @juliacon.org! #julialang #academicsky 🧪 📊🛟
proceedings.juliacon.org
Bringing Julia to Health: A Concise Overview of JuliaHealth
Zelko et al., (2026). Bringing Julia to Health: A Concise Overview of JuliaHealth. The Proceedings of the JuliaCon Conferences, 8(81), 194, https://doi.org/10.21105/jcon.00194
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Reposted by Carlos Castillo Passi
John Paul Helveston @jhelvy.bsky.social · 04/03/2026
Someone ported Karpathy's microGPT to pure #julialang in 99 lines with 0 dependencies, it's 1600x faster than CPython... hard to emphasize enough how impressive this is www.reddit.com/r/Julia/s/Vg...
reddit.com
From the Julia community on Reddit: I ported Karpathy's microgpt to Julia in 99 lines - no dependencies, manual backprop, ~1600× faster than CPython and ~4x faster than Rust.
Explore this post and more from the Julia community
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Reposted by Carlos Castillo Passi
Benedikt Ehinger @benediktehinger.bsky.social · 29/01/2026
This Blogpost covers some of the reasons my lab switched to #julialang Many are left out, e.g. we simply call any python library/function we don't have in Julia, from Julia! (e.g..mne, scopy etc.). Native GPU made easy. Extending other libraries without editing them etc slicker.me/julia/julia_...
slicker.me
Where Julia Outshines Python
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Reposted by Carlos Castillo Passi
Valentin Churavy @handle.invalid · 23/01/2026
The #JuliaCon Global 2026 call for proposals is open! We have a host of exciting minisymposia and we look forward to your talks! Find more information on juliacon.org/2026/cfp/ and submit your proposal until February 28th at pretalx.com/juliacon-202... #julia @julialang.org
JuliaCon Global 2026
Call for Proposals is Open!
Submission Deadline: February 28, 2026
Johannes Gutenberg University
Mainz, Germany
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Carlos Castillo Passi @cncastillo.bsky.social · 16/01/2026
If you are working with #JuliaLang in health, medicine, or biomedical research, consider submitting an abstract to the 🩺 Health Mini-Symposium at JuliaCon 2026 (10–15 August 2026, Mainz, Germany). @thecedarprince.bsky.social
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Carlos Castillo Passi @cncastillo.bsky.social · 04/11/2025
Blog post explaining how I drew the Julia logo using spins and an MRI scanner! 🪄🧲 #JuliaLang #MRI cncastillo.github.io/BlochHole/po...
cncastillo.github.io
I Drew the Julia Logo Using an MRI Machine – Bloch Hole
How the physics of MRI can be used to draw with spins and why this is useful.
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Reposted by Carlos Castillo Passi
Chris Rackauckas @chrisrackauckas.bsky.social · 22/09/2025
Scientific Modeling Cheatsheet: #MATLAB vs #Python vs #Julialang Side-by-side comparison for: • Differential equations • Optimization • Automatic differentiation • Symbolic computing • More! Highlights ecosystem differences & best practices. sciml.github.io/Scientific_M...
sciml.github.io
Scientific Modeling Cheatsheet – MATLAB – Python – Julia Quick Reference
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Reposted by Carlos Castillo Passi
Chris Rackauckas @chrisrackauckas.bsky.social · 05/08/2025
#Julialang Dispatch: we welcome Jacob Zelko, who takes us on a fascinating journey from his early days as a #biomedical engineering student through his work at the CDC during the COVID-19 pandemic, and into his current exploration of applied #categorytheory. www.youtube.com/watch?v=HyMp...
youtube.com
Julia Health with Jacob Zelko
YouTube video by Julia Dispatch
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Carlos Castillo Passi @cncastillo.bsky.social · 25/07/2025
Omg! The official JuliaCon account posted about my talk! 😱 Shout-out to @thecedarprince.bsky.social for organising the JuliaHealth mini-symposium and totally carrying it by giving 4 talks!!! The slides for the talk are available here: github.com/cncastillo/K...
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Reposted by Carlos Castillo Passi
Lee Phillips @badphysicist.bsky.social · 19/07/2025
Lee Phillips @lpfeed arstechnica.com/science/2014... Classical #physics is an active research area, is fundamental, and is still full of interesting and even controversial problems. Does your physics professor understand how airplanes fly? Good chance the answer is “no”.
arstechnica.com
The never-ending conundrums of classical physics
Even today, scientists still try to solve sprinkler brain teasers from the 19th century.
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Carlos Castillo Passi @cncastillo.bsky.social · 07/06/2025
JuliaCall is blowing my mind 🤯, running GPU-accelerated #JuliaLang code from Python was insanely easy!
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Carlos Castillo Passi @cncastillo.bsky.social · 29/05/2025
Big fan of the Journal of Open Source Software! It's awesome that the whole review process occurs publicly on GitHub 😊
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Reposted by Carlos Castillo Passi
Guillaume Dalle @gdalle.bsky.social · 12/05/2025
How to make #autodiff user-friendly? What lies beyond the safety of Python-world? Why does it matter for scientific machine learning? All this, and more, in our latest preprint with @adrhill.bsky.social! Spoiler alert: it describes the most useful software I ever wrote. arxiv.org/abs/2505.05542
A comparison of automatic differentiation paradigms between Python and Julia:
- In Python, one chooses the autodiff framework first (PyTorch / JAX), then the appropriate scientific library
- In Julia, one writes the scientific library first, then one tries to make it compatible with several autodiff frameworks (Enzyme, Zygote, etc)
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Reposted by Carlos Castillo Passi
Guillaume Dalle @gdalle.bsky.social · 28/04/2025
Wanna learn about autodiff and sparsity? Check out our #ICLR2025 blog post with @adrhill.bsky.social and Alexis Montoison. It has everything you need: matrices with lots of zeros, weird compiler tricks, graph coloring techniques, and a bunch of pretty pics! iclr-blogposts.github.io/2025/blog/sp...
A visualization of compressed column evaluation in sparse autodiff. Here, columns 1, 2 and 5 of the matrix (in yellow) have no overlap in their sparsity patterns. Thus, they can be evaluated together by multiplication with a sum of basis vectors (in purple).
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Carlos Castillo Passi @cncastillo.bsky.social · 16/04/2025
My MRI simulation paper was among the top 10% most read in Magnetic Resonance in Medicine 🤩! #JuliaLang
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Reposted by Carlos Castillo Passi
Lee Phillips @badphysicist.bsky.social · 20/02/2025
“New horizons for Julia”: lwn.net/Articles/100... My article about #julialang 1.11 and new directions for the language. I talk about new tooling for installation, compilation to small binaries, Julia in browsers, and more. #science #programming
lwn.net
New horizons for Julia [LWN.net]
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Carlos Castillo Passi @cncastillo.bsky.social · 03/02/2025
My first impressions of #Stanford: Wow! What a lovely campus. I’m not sure if this could even be considered winter. Pretty excited 😊!
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Reposted by Carlos Castillo Passi
JuliaCon 2026 @juliacon.org · 28/01/2025
The countdown is on: Just 3 days left to submit your proposal for JuliaCon 2025! The Call for Proposals closes on January 31st, 2025, at 23:59 EST. Submit your proposal today:https://pretalx.com/juliacon-2025/cfp #JuliaCon2025 #CallForProposals #JuliaLang
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Reposted by Carlos Castillo Passi
Jacob S. Zelko @thecedarprince.bsky.social · 27/01/2025
Hi folks! Our first JuliaHealth meeting of the year is taking place this Wednesday 12 - 2PM EST! We will be reflecting on last year, the coming year, and planning for @juliacon.bsky.social! Come with your thoughts and give the agenda a look! Hope to see you there! #julialang #medsky #academicsky
discourse.julialang.org
[Workgroup] JuliaHealth Meeting (Americas/Europe/Africa) -- January 29th, 2024
Hi Everyone! 👋 It is a new year and it is time to have our first JuliaHealth monthly meeting! This month’s meeting will be a little different: we are running for 2 hours to reflect on this past year, ...
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Carlos Castillo Passi @cncastillo.bsky.social · 14/01/2025
Just gave a two-day #JuiaLang workshop, and the fastest and the most improved code (after some performance tips) won a mug. People can get really competitive when you put a leaderboard on screen😜.
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Reposted by Carlos Castillo Passi
Jacob S. Zelko @thecedarprince.bsky.social · 22/12/2024
Excited to say that for the first time ever, JuliaHealth will be hosting a mini-Symposium at @juliacon.bsky.social 2025! More details to come but we are looking forward to hearing from YOU! Excited to hear submissions about talks, demos, and tutorials! 🧪 🛟🩺 #medsky #julialang
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Reposted by Carlos Castillo Passi
Jacob S. Zelko @thecedarprince.bsky.social · 04/12/2024
With thanks to @cncastillo.bsky.social and JuliaHealth folks, we have submitted this proposal to @juliacon.bsky.social! 🎉🎉🎉 If accepted, this will be the first ever JuliaHealth Mini-Symposium at JuliaCon! 😱 Excited to share how #julialang is used across health research! 🧪 🛟🩺 #academicsky #medsky
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Carlos Castillo Passi @cncastillo.bsky.social · 03/12/2024
Wow! KomaMRI.jl was mentioned in a talk at MRI Together by Charles McGrath, where he discussed CMRsim, another fantastic open-source MRI simulator! Could this be the publicity we need to cross 1k downloads? (Currently at 993🙉) github.com/JuliaHealth/... #JuliaLang #MRI #OpenSource
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Carlos Castillo Passi @cncastillo.bsky.social · 27/11/2024
Nothing better than replicating previous results but 200x faster using #JuliaLang 😎 Columns: 1987, 2018, 2024 (ours)
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