hrgiger
Re:I've had bad luck with transparent hugepages on my Linux machines
on Wednesday February 01, 2023 @03:40AM (#34608015)
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
Re:C++ Neural Network in a Weekend (2020)
on Wednesday February 01, 2023 @03:02AM (#34607761)
There are plenty of resources on search engine results , what did you find in particular those books stays top of the others?
Re:C++ Neural Network in a Weekend (2020)
on Wednesday February 01, 2023 @02:02AM (#34607388)
You might wanna validate your back propogation *or the final cost against a hand written very small network to see what went wrong
Re:Show HN: Train CIFAR10 to 94% in under 10 seconds on a single A100
on Monday January 30, 2023 @09:09PM (#34589985)
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
Re:Ask HN: What true thing do you believe that few people agree with y...
on Monday December 26, 2022 @04:47PM (#34142253)
unconditional worldwide true peace (not brought by weapons)
Re:Nuclear physicist explains why fusion ignition is hailed as a major...
on Monday December 19, 2022 @08:42AM (#34051909)
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...
Re:The U.S. reaches a fusion power milestone. Will it be enough to sav...
on Tuesday December 13, 2022 @11:32AM (#33971142)
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
Re:Show HN: I wrote a free eBook about many lesser-known/secret databa...
on Friday December 02, 2022 @04:13PM (#33836997)
Thanks for sharing! I am removing from backlog. COMPLETED
Re:Ask HN: Again: The “I want to do everything but end up doing nothin...
on Sunday November 20, 2022 @11:04AM (#33682004)
Certainly he is an exceptional programmer
Re:Software engineers: consider working on genomics
on Saturday November 19, 2022 @01:16PM (#33672943)
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.
Re:Show HN: Firefox Addon to Filter NSFW Content
on Saturday November 19, 2022 @09:47AM (#33670547)
"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
Re:Ask HN: Why some people do not communicate clearly?
on Friday November 18, 2022 @01:12PM (#33659098)
so you are project manager?
Re:Ask HN: What are some of the best books you have read in 2022?
on Saturday October 29, 2022 @05:12AM (#33382353)
you sleep i watch
How a magician-mathematician revealed a casino loophole
Re:Ask HN: What are some of the best documentaries you've seen?
on Thursday September 15, 2022 @07:59PM (#32860140)
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
Re:Ask HN: Easing wife onto Linux laptop How to?
on Thursday September 08, 2022 @01:15PM (#32768552)
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.
Re:Turning SQLite into a Distributed Database
on Sunday August 21, 2022 @12:24PM (#32541684)
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.
Re:Japan, U.S. to launch R&D for 2-nm chip mass production
on Monday August 01, 2022 @03:49PM (#32311201)
This is fascinating considering dna is 2.5 atom between 1-0.5 nanometer
Re:Faster CRC32-C on x86
on Monday August 01, 2022 @03:30PM (#32310979)
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 :)
Re:Ask HN: What core research are you most excited about?
on Friday July 29, 2022 @12:06PM (#32278670)
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
Re:Ask HN: What core research are you most excited about?
on Friday July 29, 2022 @10:58AM (#32277792)
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
Re:CosmicStrand: The discovery of a sophisticated UEFI firmware rootkit
on Tuesday July 26, 2022 @03:02PM (#32242470)
Shutting down everything because of paranoia sounds a bit extreme
Re:Ask HN: What are the best programming tricks you know?
on Monday July 25, 2022 @10:31AM (#32224818)
if not any I will give one: self-destructive immutable server pattern
Re:China-Made 128-Core Arm Chip Takes Overall Performance Lead in Inte...
on Wednesday July 20, 2022 @05:15PM (#32172426)
great results but ddr5 & pci-e gen5 sounds like more genoa competition
Re:EU Digital Markets Act, aimed at Google, Apple, Amazon, approved
on Wednesday July 20, 2022 @09:51AM (#32165784)
It gives me feeling also kindle covered
Re:Go generics are not bad
on Friday July 08, 2022 @08:02PM (#32029716)
Last time I check java didnt allow any generic array
Re:Met Police UK Live Facial Recognition
on Thursday July 07, 2022 @07:11PM (#32020865)
Which also could use face recognition
Re:Starlink Maritime
on Thursday July 07, 2022 @04:34PM (#32018968)
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.
Re:Historical weather data API for machine learning, free for non-comm...
on Wednesday July 06, 2022 @05:34AM (#31998665)
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:)