HNHacker News
TopNewBestAskShowJobs

hrgiger

172 karma · joined September 19, 2019

submissionscomments
hrgiger··on I've had bad luck with transparent hugepages on my Linux machines
I am recently studying hpc configs and the docs I follow most (amd,suse) recommends blocking thp by default which I was able to replicate performance impact myself as well, on the otherside standard hugepages brings lot of advantage, I do setup during kernel boot but didnt test properly, currently using 4GB. If you really wanna bypass page latency I recommend buying a cheap persistence memory, not all filesystems support yet , (ext4 and xfs ?) but with -o dax mount option you dont use pages, if data is temporary tmpfs with hugepages as far as I can see quite common usage but I also found kernel memblock argument by simulating non-existent persistent memory and mounting a filesystem with dax brings similar performance or even faster most of my cases yet still you wanna script each time boot mkfs/mount
hrgiger··on C++ Neural Network in a Weekend (2020)
There are plenty of resources on search engine results , what did you find in particular those books stays top of the others?
hrgiger··on C++ Neural Network in a Weekend (2020)
You might wanna validate your back propogation *or the final cost against a hand written very small network to see what went wrong
hrgiger··on Train CIFAR10 to 94% in under 10 seconds on a single A100
Can you add some details about what are the most complex components in your system? Also what parts you implemented from scratch? I see you still use torch
hrgiger··on Ask HN: What true thing do you believe that few people agree with you on?
unconditional worldwide true peace (not brought by weapons)
hrgiger··on Nuclear physicist explains why fusion ignition is hailed as a major breakthrough
Korean reactor reached 7 times hotter than sun, when I was reading it made me laugh that humans said fuck the dyson sphere and skipped a step on Kardashev scale yet still I find it ironic that this one built with military support.

https://www.sciencealert.com/koreas-fusion-reactor-ran-7-tim...

hrgiger··on The U.S. reaches a fusion power milestone. Will it be enough to save the planet?
Well quick google search tells me there is about 50 to 100 year fossil resources left, thats about a lifetime for a currently newborn or more optimistic next 2 generation
hrgiger··on Ask HN: Again: The “I want to do everything but end up doing nothing” dilemma
Certainly he is an exceptional programmer
hrgiger··on Consider working on genomics
I understand your point and you are completely right, but on their perspective your experience from multiple aspects of codebase is still valuable contribution and making a difference isnt it.
hrgiger··on Show HN: Firefox Addon to Filter NSFW Content
"showing porn to people against their consent is a form of sexual abuse" is more descriptive then your quotes I believe, at least this kind of precautions adds an alarm/notification options between kids in social media and twisted adults
hrgiger··on Ask HN: Why do some people not communicate clearly?
so you are project manager?
hrgiger··on Ask HN: What are some of the best books you have read in 2022?
you sleep i watch
hrgiger··on Ask HN: What are some of the best documentaries you've seen?
Late to the party but even another curious one checks out that's a win, journey to the edge of the universe,. https://youtu.be/bVQpwxgMQCg
hrgiger··on Ask HN: Easing wife onto Linux laptop How to?
My gf not good with computers yet still she is on fedora since about 4 year but she is only using for browsing, she doesnt mind to use work computer (windows) when needed for excel etc... But if she needs one particular win app I would install back without question.
hrgiger··on Turning SQLite into a Distributed Database
There are plenty of leader election/replication libraries, shouldnt be problem if you pick one and give a shot if you are not confident about your self implementation or just benchmark and see how it goes.
hrgiger··on Japan, U.S. to launch R&D for 2-nm chip mass production
This is fascinating considering dna is 2.5 atom between 1-0.5 nanometer
hrgiger··on Faster CRC32-C on x86
Also amd avx2 machines faster than intel one but the current benchmarks probably didnt have hardware on hand, googles highway numbers also intel based, I wanted to test also, i got machine but having laziest days :)
hrgiger··on Ask HN: What core research are you most excited about?
I dont see someone to have a reason refuse a reliable software solution which would speed up their existing application which could be done just by an software upgrade and reduce their bills at no cost, most benefical I think would be the tunning part for an average user. Its also compliment with many existing architectures today including cloud/container orchestration and the baremetal itself. But probably the key is still community/vendor support and standards , I dont know how it would affect maintainer life
hrgiger··on Ask HN: What core research are you most excited about?
Your list plus cellular aging, my other categories:

os: hpc/highly tuned single purpose oses/unikernel machines will become more dominant

filesystem: cxl on the horizon dax supported systems will become dominant then userspace+vendor shipped software will take over if they can catch up a common standard (intel already does good job)

fantasy: hardware cooling: I believe we have a lot of room on having control on the heat, wanted to check alternative applications especially vacuum

hrgiger··on CosmicStrand: The discovery of a sophisticated UEFI firmware rootkit
Shutting down everything because of paranoia sounds a bit extreme
hrgiger··on Ask HN: What are the best programming tricks you know?
if not any I will give one: self-destructive immutable server pattern
hrgiger··on China-Made 128-Core Arm Chip Takes Overall Performance Lead in Integer Workloads
great results but ddr5 & pci-e gen5 sounds like more genoa competition
hrgiger··on EU Digital Markets Act, aimed at Google, Apple, Amazon, approved
It gives me feeling also kindle covered
hrgiger··on Go generics are not bad
Last time I check java didnt allow any generic array
hrgiger··on Met Police UK Live Facial Recognition
Which also could use face recognition

https://ieeexplore.ieee.org/document/1602255

hrgiger··on Starlink Maritime
Astrospace is also planning mobile broadband trough the satellites, their target audience also rural areas, I wonder they will support ocean as well, if so that would help competition.
hrgiger··on Historical weather data API for machine learning, free for non-commercial
I wonder if with bitpacking you can achieve even higher ratio, considering each temp has 3 digit and temp range 51.2 to -51.2 if reasonable range 1 for signature 9 temp bit could store 3 temp in an integer. Deltas might consume less range maybe but might need extra bit tweak, afaik fastpfor also does similar run with simd , but what i understand time is not your main concern.

Edit: just read the 0.04-0.02 range , if I understand right only putting 1 real temp and then deltas could fit 12 first int and 16 temp following ints? Quick napkin math , could be wrong:)

hrgiger··on Billion-record stolen Chinese database for sale on breach forum
Well I imagine cloud sales teams reaching out haveibeenpwned with attractive storage offers
hrgiger··on SQLGlot: SQL parser, transpiler, optimizer – translate to Presto, Spark, Hive
It reminds me what compilerworks doing also, I didnt test it tough can not judge similarities

https://www.compilerworks.com/technology/

hrgiger··on Show HN: Copper – A Go framework for your projects
Agree reflection has (often big) trade offs but its not as bad as it was years ago, especially if its used during construct time rather than runtime, if you combine it with runtime caches you still get the benefits imo
Page 1 of 5Next →