Zigzag decoding with AVX-512

I’ve been working on speeding up AVX-512 vertex decoding in meshoptimizer recently; in the process I stumbled upon two optimizations that I did not end up using but I thought they might be fun to write about! The optimizations that actually made it in require some higher level background / explanations that will have to wait until another day :)

Release TorchCodec 0.14: HDR Video Decoding for CPU & CUDA, and Fast Wav Decoder · meta-pytorch/torchcodec

TorchCodec 0.14 is out! It is compatible with torch >= 2.11. It comes with two major additions: a fast audio WavDecoder, and support for HDR video decoding! Fast wav decoder TorchCodec now has a de...

GitHub
Did Astronaut Jim Lovell Really Say "Houston, We Have a Problem?" Decoding the Real History
https://atlas.whatip.xyz/post.php?slug=did-astronaut-jim-lovell-really-say-houston-we-have-a-problem-decoding-the-real-history
<p>Did Jim Lovell really say “Houston, we have a problem”
#astronaut #decoding #houston #problem
Did Astronaut Jim Lovell Really Say "Houston, We Have a Problem?" Decoding the Real History

Did Jim Lovell really say “Houston, we have a problem”? Not exactly. Here’s the real Apollo 13 story behind the famous misquote.

I found this lock this morning. Unsuccessfully tried a couple ways to decode it, but ended up having to find a video that demonstrated a paperclip method.

Push the paperclip down through the notch and rotate each wheel until the wire can drop through each gate. Once the wire is all the way down, you have the alignment.

Then, just rotate all wheels (together) one position at a time until it unlocks!

#locksport #lockpicking #bypass #decoding

The economics of speculative decoding

Two underexplored axes: what MoE routing does to the decode roofline, and how compressed attention takes away the slack that used to make speculated tokens free.

Apple's RAW Processing is Finally Evolving After a Decade and It's a Big Deal

A quietly seismic shift in how Apple handles RAW images.

PetaPixel
Linux 上的 Firefox 要支援 Vulkan Video Decoding 了?

前幾天看到「Firefox Merges Support For Vulkan Video Decoding (via)」這個,然後也有人到我 blog 之前的「Firefox 上 YouTube 的加速」這篇下面留言提到。 看「2021722 - Add Vulkan Video path to FFmpegVideoDecoder in Firefox」是三個月前開的票,然後順利實作完了: 看 milestone 是 153 Branch,應該是三個月後的版本?目前都是 CPU 硬幹啊,現在總算是有解了...

Gea-Suan Lin's BLOG
The Quiet Numbers Station: Decoding Nineteen Years of GPS Cryptography

The Global Positioning System (GPS) relies on its primary L1 frequency to broadcast precise timing and orbital data, allowing receivers on Earth to calculate their exact location. Because the L1 C/A signal transmits at just fifty bits per second, every bit of this navigation data must earn its place

Bentham’s Gaze
My second post about #quantum #computing brush-up is out: I deal with #QEC #surfacecodes in particular. A bit more technical than previous one, with hit-and-runs about #MWPM #decoding #teleportation via #latticesurgery, #magicstatedistillation. Link in first comment
🔐 Oh, the thrill of #decoding the "secure" internet by mixing numbers like a toddler with a box of crayons! 🤓 This riveting dissertation on lawful eavesdropping and #TLS is sure to make you question your life choices as you struggle to stay awake through its 11-minute snooze-fest. 💤
https://remyhax.xyz/posts/reproducing-lawful-tls-wiretapping/ #secureinternet #lawfuleavesdropping #snoozefest #techhumor #HackerNews #ngated
Parallel Reconstruction of Lawful TLS Wiretapping

Transport Layer Security (TLS) is the protocol involved in getting the lock icon to appear in your browser next to the URL. Under the hood it uses a bunch of really cool numbers for encryption. Some numbers are considered private and need securing; some are considered public and are fine for sharing. You can mix your numbers with other people’s numbers in such a way that you can verify a chain of trust. Ultimately, at the top of this chain there has to be an entity or entities that are implied to be trustworthy, so that the links further down the chain of numbers can inherit that trust. This is the role of a root Certificate Authority (CA) at the top (root) of the chain.

REMY HAX