HNHacker News
TopNewBestAskShowJobs

Agingcoder

1,709 karma · joined December 19, 2017

submissionscomments
Agingcoder··on Intel's make-or-break 18A process node debuts for data center with 288-core Xeon
Yes there are scheduling issues, Numa problems , etc caused by the cluster in a box form factor.

We had a massive performance issue a few years ago that we fixed by mapping our processes to the numa zones topology . The default design of our software would otherwise effectively route all memory accesses to the same numa zone and performance went down the drain.

Agingcoder··on How to talk to anyone and why you should
My kids make fun of me because I know the shopkeepers around me by first name, along with the details of their businesses , and that shopping takes forever because I talk to everyone, customers included.

I just love it, it’s easy and I get a lot in return - from perks to incredible encounters. At work it’s been very helpful.

I developed that skill while traveling alone for a year , and it boils down to practicing and reading whether the person you’re talking to is ok with your talking or not.

In any case, it makes me immensely happy.

Agingcoder··on How to talk to anyone and why you should
This is very different

Most random encounters have a pretext, from smoking a cigarette to talking to the shopkeeper, or being in a queue for a long time.

Talking to a woman ( esp given that many of them are harassed from what I understand from my female friends ) without any reason to is much harder

Agingcoder··on How to talk to anyone and why you should
You virtually never bother them - worst case they’ll turn you down.

On the contrary, they’re usually very happy to tell you about what they do.

Agingcoder··on Dan Simmons, author of Hyperion, has died
I read the book years ago so might have forgotten - what intergenerational romance ?
Agingcoder··on How far back in time can you understand English?
The intonation is different, there are harsher sounds, but there are diphtongs everywhere in Dutch, and to me thisbis what makes it sound like English. French, Spanish, German etc don’t have diphtongs ( or they’re quite rare )
Agingcoder··on Towards Autonomous Mathematics Research
That’s what they do usually I understand - llm generates proof in lean, and proof checker proves.
Agingcoder··on A GTA modder has got the 1997 original working on modern PCs and Steam Deck
A couple of days ago a colleague of mine was talking about very old rts games he still liked to play , and mentioned red alert. It turned out he had never heard of dune 2, Warcraft 1 and 2!
Agingcoder··on France dumps Zoom and Teams as Europe seeks digital autonomy from the US
It has a very large number of bugs.

My favourite one ( still happens ) is having to mute then unmute at the beginning of the conversation otherwise nobody can hear me. It was so common, with people fiddling with their headset, calling again etc that I eventually asked everyone exhibiting audio issues to start with this

Another interesting one is that if you’re not connected properly , you send messages , but never get notified that they never left, and are never notified that you’re not connected.

It’s also a resource hog and will eat your machine for breakfast.

The list goes on and on, it’s very surprising.

Agingcoder··on France dumps Zoom and Teams as Europe seeks digital autonomy from the US
This one made me laugh , thanks ! I wish there was some kind of slashdot like ´funny’ tag
Agingcoder··on Nvidia's 10-year effort to make the Shield TV the most updated Android device
Full screen video ads on the home screen ? I don’t see this on mine.
Agingcoder··on Nvidia's 10-year effort to make the Shield TV the most updated Android device
It also can’t stream games
Agingcoder··on Ask HN: DDD was a great debugger – what would a modern equivalent look like?
No it’s vastly different - give it a try first . Reverse debugging with full dataflow is magical. Interestingly enough, it takes a while to get to used to it since you tend to do things the old way, when the Pernosco, science fiction way is much better and actually works
Agingcoder··on Ask HN: DDD was a great debugger – what would a modern equivalent look like?
Pernosco

Blows everything else out of the water.

https://pernos.co/ ( I’m not affiliated to them in any way, just a happy customer)

Agingcoder··on How I Became a Quant (2007) [pdf]
Several things : immediately after 2008 less demand for exotics because clients were afraid of them, cutting costs rather than increasing revenue ( that’s industrialization with IT and standardization ) and more importantly, industry reaching some kind of maturity, with large quant libraries which are pretty stable these days.
Agingcoder··on How I Became a Quant (2007) [pdf]
Im reasonably familiar with the exotics quant space.

It’s essentially IT/data work - the days of sophisticated maths are mostly gone. There always was a lot of code, but these days for most people there’s little to no new maths.

From what I’ve seen, post-2008 the job changed significantly, with more IT, less maths, more standardization - basically the job moved from bespoke everything to super industrialized. You’ll be able to have your model work for one underlying and one product, but what’s really useful is for lots of underlyings and many products - and that’s very hard.

That being said, and that’s important, you must understand the maths behind, otherwise you won’t be able to do anything useful.

Agingcoder··on I made Zig compute 33M satellite positions in 3 seconds
These days a single machine with lots of ram and cores will handle almost everything you throw at it, barring specific compute intensive / memory bound scenarios ( current AI, gaming etc ).
Agingcoder··on Apple picks Gemini to power Siri
Same issue with apple car. ‘ hey Siri, please play ‘call your girlfriend’ on Spotify by (artist)’

‘Sorry I don’t know anyone called ‘your girlfriend’’ The kids find it hilarious

Agingcoder··on What old tennis players teach us (2017)
Is the same mechanism at play with football ? Say Real Madrid gets so much money from champions league that they can buy all the best players and then keep winning ? And then only a small clique of elite clubs end up winning all the time?

( disclaimer : I know nothing about football !)

Agingcoder··on Max Payne – two decades later – Graphics Critique (2021)
That’s what struck me immediately - these are all typical tricks from the 90s. I remember demos ( I think complex/dope in 95) where the awesome ‘real time reflections’ where actually an animated texture. I was quite impressed when someone explained the trick.
Agingcoder··on Max Payne – two decades later – Graphics Critique (2021)
Looks like typical demo scene tricks applied to gaming
Agingcoder··on How to store a chess position in 26 bytes (2022)
This is pretty standard ( or at least used to be 20 years ago ) in high performance chess programming, see

https://www.chessprogramming.org/Bitboards

https://healeycodes.com/visualizing-chess-bitboards

Agingcoder··on I changed my personality in six weeks
This is weird - my mother very rarely drinks but she’ll be hard pressed telling you exactly when was the last time time . This doesn’t make her an alcoholic.

Or should you start the rule with ‘you’ve been drinking everyday for a while’?

Agingcoder··on Ask HN: Reading list for being a better engineer?
Computer architecture a quantitative approach by Patterson and hennessy

It’s the real life exchange rate for algorithms and data structures. Basically understanding your infrastructure and its performance characteristics will help you design simpler ( and therefore better )systems

Agingcoder··on What you need to know before touching a video file
I used mplayer ( the ancestor to mpv as I’ve just realized ) in the early 2000s which I think could handle everything under the sun back then.
Agingcoder··on Ask HN: What are the best engineering blogs with real-world depth?
Cloudflare, google project zero.
Agingcoder··on The Garbage Collection Handbook
This is a truly remarkable book, and a must read for any engineer who depends on a gc . And if you don’t need a gc, the book starts by talking about allocators, which are actually very important too !
Agingcoder··on The Garbage Collection Handbook
It’s pretty standard in many places I think - the point here is not the null gc but rather exact memory requirements being proved statically.
Agingcoder··on FVWM-95 (2001)
I liked window maker and enlightenment, both of a which appeared a bit later.
Agingcoder··on $5 whale listening hydrophone making workshop
This title is very hard to parse
← PreviousPage 3 of 24Next →