Hacker News: mzs

New comment by mzs in "Subnormal floating-point numbers are expensive on Intel processors"

mzs — Fri, 18 Sep 2026 14:57:33 +0000

I mean the values of the computation not the runtime. I don’t know enough about ARM to say if doubles simply punt denormals to 0 for example.

New comment by mzs in "Subnormal floating-point numbers are expensive on Intel processors"

mzs — Fri, 18 Sep 2026 13:48:31 +0000

Are the results compared across architectures?

New comment by mzs in "A 32-year-old bug walks into a Telnet server"

mzs — Thu, 17 Sep 2026 15:15:13 +0000

CVE-2026-32746

New comment by mzs in "Original Sony PlayStation 2 security chip 'broken wide open' after 26 years"

mzs — Wed, 16 Sep 2026 12:52:18 +0000

https://github.com/spc970-dumper-union/spc970-dumps-public

New comment by mzs in "Anthropic Says Iran Used Its American AI Model to Target U.S. Navy Warships"

mzs — Fri, 11 Sep 2026 14:42:39 +0000

> https://www.anthropic.com/threat-intelligence-report-septemb...

GTG-30005: Military reconnaissance

Naval reconnaissance

In another investigation, we identified and disrupted an Iran-nexus threat actor that used Claude to collect and analyze publicly accessible data to develop targeting recommendations against US naval forces in the region. The threat actor used Claude to compile targeting handbooks, through a Python pipeline the threat actor built with Claude’s assistance, to identify and track naval positions based on open-source information. The compiled material included a roster of US personnel scraped from captions on public military photographs; publicly accessible ship and aircraft transponder identifiers; commercial satellite-imagery query scripts; and an inventory of public websites that exposed US naval movements. The threat actor also directed Claude to compile vulnerability research on shipboard systems, cataloging known CVEs in maritime VSAT terminals, Cisco communications equipment, and industrial control products.

We banned the actor’s account, developed detections to reduce the risk of future misuse, and shared threat intelligence with government authorities to disrupt the threat.

New comment by mzs in "Discrete Dipole Approximation Code Ddscat 7.2 (2012)"

mzs — Thu, 10 Sep 2026 17:50:54 +0000

For DDSCAT there is the C analogue ADDA which is faster under most typical current uses. There's also IFDDA (basically fortran with a C++ convenience wrapper) offering the best performance with NVIDIA.

New comment by mzs in "Discrete Dipole Approximation Code Ddscat 7.2 (2012)"

mzs — Thu, 10 Sep 2026 17:33:07 +0000

It's not really about the compilers ever since C99's restrict (you can almost always equal fortran performance now), it's how much more you have to think and validate about how to write the C/C++ plus the compiler and linker options to use.

Also with C99 you get many of the convenient aspects of fortran ( and vardim array function args) and with C11 you also get now.

But you are still missing fortran's ** operator and it's more than just syntactic sugar, it accepts more types.

New comment by mzs in "More questions about whether researchers can trust OpenAI with unpublished math"

mzs — Thu, 10 Sep 2026 16:53:45 +0000

omitting when training concluded

edit: ffsm8 makes a great point below, it doesn't matter. I'm not great with dates, sorry.

New comment by mzs in "On the Navier–Stokes Millennium Prize Problem"

mzs — Wed, 09 Sep 2026 05:09:33 +0000

"It was splendid! Waiter, share my regards with the oven."

New comment by mzs in "On the Navier–Stokes Millennium Prize Problem"

mzs — Wed, 09 Sep 2026 04:54:40 +0000

This is precisely what I would write after just learning that yes it did.

New comment by mzs in "Tao: Open math problems being non-renewably mined by AI"

mzs — Wed, 09 Sep 2026 04:33:39 +0000

AI companies don't share the dead ends and only sometimes a bit of the process toward success so people don't understand what was curious along the way.

New comment by mzs in "Show HN: Stuxnet – A reconstructed source code of the infamous cyber-weapon"

mzs — Tue, 08 Sep 2026 00:42:19 +0000

I always wondered about how feasible the usb drive propagation bit always noted was. Was there ever any evidence that the hardware was already infected at a less scrupulous reseller? I’ve heard of another site in EU that had misbehaving s7. It could have been a reseller that played loose with licensing.

New comment by mzs in "The BBC Tetris Companion"

mzs — Fri, 07 Aug 2026 15:25:06 +0000

nice series from same author:

https://www.leadedsolder.com/2020/02/16/colecovision-diy-par...

New comment by mzs in "Brow6el: A full-featured web browser for the terminal using Chromium"

mzs — Thu, 23 Jul 2026 17:42:24 +0000

"This reporitory [https://tangled.org/janantos.tngl.sh/brow6el] is now the main and only source of truth, previous on Codeberg [https://codeberg.org/janantos/brow6el] is kept for referrence only. I have decided to migrated from Codeberg because of my other projects are not welcomed there anymore and I want to keep my projects together on single platform."

New comment by mzs in "My husbands suicide shows theres something very wrong with US insurance industry"

mzs — Mon, 20 Jul 2026 18:16:34 +0000

Similar story for our youngest - excuse after excuse. We just bought two round-trip tickets to Warsaw and paid privately. It was a little more but my wife and son got to spend time with friends and family for that extra. The effort we had spent in US we never got back. I hope it worked-out okay for your family as well.