The halting problem is easy actually. The program will terminate when the computer breaks. Duh.

My twin Lovecraftian horrors are back for #caturday #catsofbluesky #cat

500 days— that’s how long Ash & Willow have been waiting for the right family. Can you help us find them? Learn more at crits4cats.petfinder.com (The .org in the thread doesn’t work properly).

A very good blep. #cat #catsofbluesky

We love sink #cat

Me too guys. Me too. Source is "destroy all humans, they can't be regenerated" volume 2.

Slowly coming to terms with the fact that I'm not a science account that posts cats. I'm a #cat account that sometimes posts about science.

For this #caturday I present Emmy's beans. #cat #catsofbluesky

Absolutely thrilled to announce that I'll be part of this collaboration. I'll be moving to Ann Arbor to collaborate with Michigan facility on exciting projects involving supercomputing, AI, and fusion power. This has been in the works for a long time, but now the move is a few months away!

Nyarlie and Yoggie ready for #caturday #cat #catsofbluesky

Nyarlie is both a gentleman and a scholar. #cat #catsofbluesky

Paper day! This is a fun one if you like low level #hpc #programming hacks. 🧪🔭 In computational physics ⚛️, we often interpolate tabulated data that spans many orders of magnitude. A common way to do this is to tabulate in log space. But logs are slow... Or are they? 🧵👇 arxiv.org/abs/2501.05410

I thought this article was very insightful for #programming in general, but also for scientific computing and #HPC 🔭⚛️🧪 www.seangoedecke.com/large-establ... Two underappreciated aspects 🧵👇

For this #caturday we have Emmy with heart melting eyes. #cat #catsofbluesky

That's a funny looking book on the shelf... #cat #catsofbluesky

Yoggie wishes you all a happy new year!

I ask sand to do math for me. Sometimes successfully.

I have interacted with undergraduate students who have never used anything other than a phone or tablet and don't know how to navigate a filesystem. The way most people interact with a computer is just different now, much as I am sad to admit it.

Haven't seen this posted on here yet: applications for the 2025 LIGO International Physics and Astronomy (IPA) program for educators are open until the end of January! It's a fantastic* program for high school educators:) *(and I'm not only saying this cause I helped with it back in 2019😆) 🧪🔭

This week for #caturday I have two mirrored #cat s

Absolutely devastated to discover I've become the kind of person who likes to work on vacation. Because no meetings or bureaucratic nonsense means it's way more productive and enjoyable.

Well that's a strange looking #cat. #caturday #catsofbluesky

My favorite git commit of the day. #programming #c++

For #scicomm Sunday this week, I thought I'd share the follow up to last week's article. This week, general relativity is the dynamics of distance 🧪⚛️🔭: www.thephysicsmill.com/2015/08/03/g...

For this #caturday we have Emmy looking cozy in her doughnut. #cat #catsofblusky #blueskycats

Too many moments to count. The biggest one, though, was being handed the exact right tools at the exact right time. I joined LANL September 2017. A certain neutron star merger was detected the month before... And I joined a research group incredibly strong in radiation transport and nuclear astro.

The Well was featured in a LANL press release! This is a huge dataset designed for training scientific #AI and foundation models. The #HPC simulations of neutron star mergers, some of the most energetic events in the universe, we're my contribution. ⚛️🔭🧪👇 www.lanl.gov/media/news/1...

We're shelved. #cat #catsofbluesky

The more time I have spent in 🧪 at LANL, the more often I've had to communicate with intelligent folks who aren't technically trained in my field. These are the people who often set funding priorities and effectively communicating with them is an important skill, one that "popularizers" have honed.👇

LANL to establish a #HPC facility in partnership with the University of Michigan in the Ypsilanti-area $1.2B project for two centers near Ypsilanti, one for classified activities and another for non-classified #AI computing and research www.mlive.com/news/ann-arb...

That (all too common) feeling when you get stuck in meetings all day so you only get to do the fun work (i.e., coding) after you get home and eat dinner...

Hello new followers! You probably found me because of the pets starter pack. So let me pay the pet tax up front. This is Emmy, one of three of my three esteemed colleagues. Tune in to learn about the cool science we do. Supercomputers, supernovae, and neutron stars are just some of what we work on!

The new Google quantum computer is very cool. But I can't help but be annoyed by the headlines about the absurd cost of the benchmark it ran. That's true, but the benchmark has no relation to problems we're actually interested in solving. Which is the big open problem in this space.

Spouse: what are you thinking about? Me: Thinking is hard and I did it all day. I'm tired. I'm done thinking for now.

I am 100% on board with this idea.

These are fantastic. Especially the first one. Everyone at all levels feels stupid all the time. And that means it's working.

For #scicomm this Sunday, I figured I'd re-share some of my older prose that I'm still proud of. The first article in my series on general relativity for the lay person is this one: Galileo almost discovered general relativity. ⚛️🧪🔭 www.thephysicsmill.com/2015/07/26/g...

For #caturday this week, we have Emmie cuddling with her person. #cat #catsofbluesky

It's even more incredible than that. We are also the aftermath of the deaths of colliding stars, and the embers of the first primordial plasma.

I have a whole talk called "performance portability is a lie." It's basically talking about this issue. If you want to be performant on both traditional CPU architectures and modern accelerators, you need algorithm and data structure "knobs" you can turn to adapt to moving bottlenecks. #hpc

Pleased that I once again got to share the gospel of log plots in #astrophysics with a new generation today.

Big things ahead at the University of Michigan! U-M and Los Alamos are teaming up to build next-generation #HPC facility for #AI research record.umich.edu/articles/u-m...

@bot.astronomy.blue signup

This is the only acceptable position for drinking from the faucet, apparently. #cat #catsofbluesky

Hi @physgal.bsky.social , would it be possible to add me to the physicists list?

Last year I had to fly defuse a situation where a new contributor felt attacked for their contributions on an MR. That motivated me to set up expectations for both reviewer and contributor on a pull request. Here's what I wrote up lanl.github.io/singularity-...

I'm honored my simulations are featured as part of this amazing toolbox for training scientific AI and foundation models. Hopefully this dataset will help drive innovation in ML for science. 🧪 polymathic-ai.org/the_well/