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xmmrm

544 karma · joined October 16, 2017

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xmmrm··on Revisiting the postcard pathtracer with CUDA and Optix
Surprisingly [sincosf fusion] only happened with -Ofast and not with -O3.

As noted, -Ofast turns on -ffast-math which turns on -funsafe-math-optimizations which "enables optimizations that allow arbitrary reassociations and transformations with no accuracy guarantees."[0] In this case, sincosf by itself is probably more accurate.

[0] https://gcc.gnu.org/wiki/FloatingPointMath

xmmrm··on Russian hackers tracked Ukrainian artillery units using Android implant (2016)
>Why is this being posted now?

https://news.ycombinator.com/item?id=23220544

xmmrm··on Are Tests Necessary in TypeScript?
>completely removing the need for tests

That would be formal verification.

xmmrm··on Fast Math Rendering on the Web
Specifically, MathML Core: https://mathml-refresh.github.io/mathml-core/
xmmrm··on Cofactor Explained: Clearing Elliptic Curves' dirty little secret
Have you seen Curve9767 [0] ? Short-Weierstrass, prime-order, but the implementation does not use the complete formulas. Competitive performance, on the ARM Cortex-M0+ at least.

[0] https://github.com/pornin/curve9767

xmmrm··on Cofactor Explained: Clearing Elliptic Curves' dirty little secret
By the way, what’s the status of ristretto255? The latest version of the internet-draft [0] expired a while ago.

[0] https://datatracker.ietf.org/doc/draft-hdevalence-cfrg-ristr...

xmmrm··on Apple Faceshield
Yeah, they should drop bleach from that list. It degrades the shield and it might just do more harm than good.
xmmrm··on Firefox's low-latency WebAssembly compiler
There’s good news on that front: https://mathml-refresh.github.io/mathml-core/
xmmrm··on On Linux's Random Number Generation
For comparison, here‘s a sane interface: https://fuchsia.dev/fuchsia-src/reference/syscalls/cprng_dra...
xmmrm··on Crown Sterling Claims to Factor RSA Keylengths First Factored Twenty Years Ago
Thread on RSA factoring progress:

https://twitter.com/sweis/status/1175099502312620032

xmmrm··on Transgenic Aedes Aegypti Mosquitoes Transfer Genes into a Natural Population
Not necessarily connected but worth noting: There’s a sharp rise in dengue fever cases in Brazil this year.

https://www.ft.com/content/e5606a2c-9c0a-11e9-9c06-a4640c9fe...

xmmrm··on Keyringless GnuPG
Somewhat off-topic: Are there any efforts to add signify/minisign support to git?
xmmrm··on The Central Park Five
they attacked another jogger, hitting him in the back of the head with a pipe and stick

They pummeled two men into unconsciousness, hitting them with a metal pipe, stones, and punches, and kicking them in the head.

The first policeman who saw her said: "She was beaten as badly as anybody I've ever seen beaten. She looked like she was tortured."

It’s a very “good thing” that they were in jail long into adulthood.

xmmrm··on The Central Park Five
Not much nuance to this: They were guilty and they are guilty.

From the Armstrong Report:

We believe the inconsistencies contained in the various statements were not such as to destroy their reliability. On the other hand, there was a general consistency that ran through the defendants' descriptions of the attack on the female jogger: she was knocked down on the road, dragged into the woods, hit and molested by several defendants, sexually abused by some while others held her arms and legs, and left semiconscious in a state of undress.

xmmrm··on The world might run out of people
Just compare TFR and average IQ tables. The pattern is obvious.
xmmrm··on Show HN: A cross platform app for mirroring the clipboard between synced devices
See also: https://github.com/jedisct1/piknik
xmmrm··on Opera launches as a snap for Linux users
You‘re really complaining about how the Snap Store works. Simple fix: Only maintainers can promote snaps to 'stable'.
xmmrm··on The last day of linotype at the NYT (1978) [video]
https://rg3.github.io/youtube-dl/
xmmrm··on Storify End-of-Life
https://twitter.com/textfiles/status/940627577059778560