Hacker News: casta

New comment by casta in "AI is now capable of developing its own inference hardware"

casta — Tue, 06 Oct 2026 18:35:16 +0000

taalas did: https://taalas.com/

New comment by casta in "The Vespa at 80"

casta — Sat, 04 Jul 2026 13:34:07 +0000

There has been an electric vespa for quita a while: https://storeusa.vespa.com/elettrica/vespa-elettrica-45-mph....

New comment by casta in "Waymo Safety Impact"

casta — Thu, 19 Mar 2026 23:03:27 +0000

In January YouTube music worked fine when I took Waymo in Menlo Park.

New comment by casta in "Why, as a responsible adult, SimCity 2000 hits differently"

casta — Sun, 21 Sep 2025 23:17:58 +0000

Nice. Those activities remind me when I used to visit my dad countryside (he lived in Tuscany). He's legally blind though, and we managed anyway. Not sure why the last bit would be car enabled. I was in East Hamptons a few weeks ago and the kids would play outside while we stayed in the living room/kitchen. We just had to be careful about the pool.

New comment by casta in "Why, as a responsible adult, SimCity 2000 hits differently"

casta — Sun, 21 Sep 2025 22:34:15 +0000

I traveled with my kid when he was less than 1 year old in Tokyo. What is the issue with the stroller in the subway? There are always signs of how to get where you need to go using elevators.

While Tokyo has one of the worst fertility rates, it's not like the rest of Japan is doing particularly well. Also, I was staying in Azabujuban and I was surprised by the amount of kids I saw there.

New comment by casta in "Why, as a responsible adult, SimCity 2000 hits differently"

casta — Sun, 21 Sep 2025 22:30:43 +0000

Interesting. To provide a different experience, I live in NYC with kids and I find it great here. Daycare/Kindergarten is at most 4 blocks away, grocery stores are less than a block away, it takes me 10 minutes to get to the office on the train (1/2/3). I still bike to the office often. If we need a car there is a rental less than a block away, but in practice we rent maybe once a year. Today there was an open street on Columbus Ave and it was lovely to meet co-workers with their kids and let them play there. To be fair, I wasn't born here even if I'm a citizen, so I guess I wouldn't be considered "American".

New comment by casta in "Were RNNs all we needed? A GPU programming perspective"

casta — Sat, 20 Sep 2025 23:48:30 +0000

How's the prefix sum on a single thread O(N log(N))? Isn't it trivially O(N)? It's just a for loop.

New comment by casta in "Congestion Pricing Is a Policy Miracle"

casta — Fri, 21 Mar 2025 17:01:23 +0000

I work 5 days a week and get to work on a single ride.

I do take multiple other rides a day and in the weekend though, so I hit 12 rides pretty quickly, probably in around 4 days.

New comment by casta in "Accessing a DRM Framebuffer to display an image"

casta — Sun, 08 Dec 2024 20:20:12 +0000

When I worked on it, there was no other way to check if a configuration could be set. I remember suggesting to kernel folks to add some another way, in particular 'cause sometimes we had to allocate some massive buffer just to be told you had to composite.

Also, you could not cache a config as valid. The configuration validity depends on the current state of the display controller. For example, if a configuration of planes on one CRTC can be set might depend on how much bandwidth is currently required by another one. I remember having to get rid of framebuffer compression on one monitor if another monitor had a resolution above a certain threshold.

Planes rotation property can be 0,90, 180 and 270, you can also flip them: https://www.kernel.org/doc/html/v4.12/gpu/drm-kms.html#c.drm.... If I remember correctly I implemented/upstreamed a few of these properties support for Rockchip display controllers.

If you can rotate a specific buffer will likely depend on your display controller plus if it's tiled or not though, since rotating a linear buffer is going to destroy BW.

If you are writing code only for one specific display controller you can look at the drivers and just figure out which configs are ok.

If your DP supports it, you don't need to GPU composite for screenshots, you can use the write back connector.

New comment by casta in "Accessing a DRM Framebuffer to display an image"

casta — Sat, 07 Dec 2024 23:49:05 +0000

The drm atomic test is not only to verify if it's "correct", it is also used to check if the display controller can scan out that configuration of planes/buffers, given buffer modifiers, plane properties/sizes, etc. and current status of the display controller. If it can't, you probably need to simplify the configuration via some GPU compositing.

This is what we were doing on ChromeOS.

New comment by casta in "What will enter the public domain in 2025?"

casta — Sun, 01 Dec 2024 23:51:45 +0000

I'd say "by itself".

New comment by casta in "Show HN: Tinder, but to decide what to eat"

casta — Tue, 05 Nov 2024 01:00:05 +0000

I'm not organized at all! The deck of cards idea sounds much better than the spreadsheet, I might print them!

For the "who can cook them" in the spreadsheet, I guess it's just a matter of what we're used to cook. I'm from Italy, she's from Malawi, I'm sure I could cook 'nsima and she could cook polenta.

New comment by casta in "Show HN: Tinder, but to Decide What to Eat"

casta — Sun, 03 Nov 2024 23:17:32 +0000

I don't mean to belittle your app that unfortunately I can't try it since I don't have iOS.

We did solve the problem in a much easier way though. We do have 40 recipes we usually cycle through. I wrote them in a spreadsheet and marked them based on who can cook them, if it's brunch, lunch or dinner, quick or elaborate, summery or wintery.

Then in another sheet I just create a list of those recipes/dishes picked randomly based on the day of the month.

If we start the discussion "what do we eat tonight", I can just open the spreadsheet. 99% of the time proposing the option for that day on the sheet gives us closure and we're done.

New comment by casta in "Show HN: Tinder, but to decide what to eat"

casta — Sun, 03 Nov 2024 23:17:05 +0000

I don't mean to belittle your app, I can't try it 'cause I don't have iOS.

Then in another sheet I just create a list of those recipes/dishes picked randomly based on the day of the month.

If we start the discussion "what do we eat tonight", I can just open the spreadsheet. 99% of the time proposing the option for that day on the sheet gives us closure and we're done.

New comment by casta in "Douglas Hofstadter on Lisp (1983)"

casta — Wed, 16 Oct 2024 15:46:28 +0000

The pricing engine for Google Flights (and behind many big airline websites) is written in Lisp.

New comment by casta in "It's Time to Stop Taking Sam Altman at His Word"

casta — Sun, 06 Oct 2024 14:25:20 +0000

The limit could also be in the training data. If we could train LLMs with a corpus generated by some super intelligent entity, maybe we'd consider them super intelligent even with the same model size/architecture we have today.

New comment by casta in "Controversy over introduction of numberplates"

casta — Sun, 06 Oct 2024 13:23:26 +0000

Lots of folks not onboard with the idea of registrations plates in NYC too. I see plenty of folks with fake or expired paper plates going around.

New comment by casta in "The City of London which is not part of London (2016)"

casta — Sun, 23 Jun 2024 10:56:14 +0000

It's not canceled. They paused the plan.

New comment by casta in "Japanese addresses: No street names. Block numbers (2009)"

casta — Sat, 15 Jun 2024 03:11:51 +0000

I usually hear it's N avenues away if you need to walk east-west in Manhattan.

Rivos Raises More Than $250M

casta — Tue, 16 Apr 2024 14:03:57 +0000

Article URL: https://www.businesswire.com/news/home/20240416215878/en/Rivos-Raises-More-Than-250M-Targeting-Data-Analytics-and-Generative-AI-Markets

Comments URL: https://news.ycombinator.com/item?id=40052026

Points: 3

# Comments: 0