snowAbstraction's comments

On: Low Cost Mini PCs

[snowAbstraction]

Two months in and I'm a happy Beelink customer too. My kids mostly use it for Minecraft.

On: Faer-rs: Linear algebra foundation for Rust

[snowAbstraction]

For the larger performance diffs, has anyone looked into why? Are there a couple of common reasons? I'd really like to know. Thanks

[sarah-ek → snowAbstraction]

i have, yes. i can't speak for openblas or mkl, but im familiar with eigen and nalgebra's implementations to some extent

nalgebra doesn't use blocking, so decompositions are handled one column (or row) at a time. this is great for small matrices, but scales poorly for larger ones

eigen uses blocking for most decompositions, other than the eigendecomposition, but they don't have a proper threading framework. the only operation that is properly multithreaded is matrix multiplication using openmp (and the unstable tensor module using a custom thread pool)

On: Subroutine calls in the ancient world, before comp...

[snowAbstraction]

Interesting. For other readers, this is about an early 80s Texas Instruments computer and not a graphing calculator as I first thought.

On: Mojo is now available on Mac

[snowAbstraction]

I skimmed your post and I wonder if mojo is focusing on such small 512x512 matrices? What is your thinking on generalizing your results for larger matrices?

[dsharlet → snowAbstraction]

I think for a compiler it makes sense to focus on small matrix multiplies, which are a building block of larger matrix multiplies anyways. Small matrix multiplies emphasize the compiler/code generation quality. Even vanilla python overhead might be insignificant when gluing small-ish matrix multiplies together to do a big multiply.

On: Bike Lane Sweepers (2021)

[snowAbstraction]

That would be cool.

Otherwise, sweepers will need both extra robust tires and to be ready change flats.

On: Unihiker, an $80 single-board PC with 2.8“ touchsc...

[snowAbstraction]

Some boards have decent support. I've got an odroid C1 released in 2015 and I saw there is at least an Ubuntu 20 image for it!

[cosmojg → snowAbstraction]

Better yet, you can get the latest version of RetroArch up and running on an ODROID-C1 with Arch Linux Arm: https://archlinuxarm.org/platforms

On: CGAL: Computational Geometry Algorithms Library

[snowAbstraction]

I've seen that there are Python wrappers for some of CGAL https://github.com/sciencectn/cgal-bindings but I haven't used them.

[amoral → snowAbstraction]

There are also "official" ones there: https://github.com/CGAL/cgal-swig-bindings. It does not cover all components, but is performed on a "when there are enough requests for it" basis.

On: Inside an IBM AS/400 eSeries Factory [video]

[snowAbstraction]

Thanks, this brought back some memories. I did an internship / co-op in software engineering at that site in Rochester while a student. They needed extra help so I worked a few evenings at 1.5 pay alongside the regular factory workers.

On: We're moving to a four-day work week at Beacon

[snowAbstraction]

In Sweden, a significant number of parents with young children who work 80% so maybe that has caused the confusion.

[kqr → snowAbstraction]

That describes also myself -- yet I didn't think about that possibility!

On: Homes in 97% of U.S. cities are overvalued, Moody'...

[snowAbstraction]

Basically.