Do all the things like ++ or -- rants, post your own rants, comment on others' rants and build your customized dev avatarSign Up
Get a devDuck
Rubber duck debugging has never been so cute! Get your favorite coding language devDuckBuy Now
Search - "32bit"
Manager: we use <teaming meeting service> for all of our team meetings.
Me: cool I'll go to the site and join the meeting.
Me: [using opera as default browser]
Service: [doesn't work with opera]
Me: [not really surprised, tries firefox]
Service: I need java to run me.
Me: I have java.
Firefox: yeah but I don't.
Firefox: 'cause we're phasing it out.
Me: [looking for some kind of plugin]
Internet: [tldr Firefox can only use 32bit java if it must use java]
Me: [installs 32 bit java]
Firefox: [covering its eyes] I can't see anything
Me: it's right there.
Me: ... please?
Me: [checks service supported browsers]
Service: on Linux: ONLY FIREFOX
Me: .... fuck...
Me: [downloads Linux-32 distro]
Me: [runs as vm]
Me: [installs Firefox esr]
Me: [installs java-32]
Me: [manually creates plugin for Firefox to recognize java]
Me: [logs onto service and signs in]
Service: Meeting concluded 26 minutes ago.7
"4096 bit ~ 96 hours is what he said.
IDK why, but when he took the challenge, he posted that it'd take 36 hours"
As @cbsa wrote, and nitwhiz wrote "but the statement was that op's i3 did it in 11 hours. So there must be a result already, which can be verified?"
I added time because I was in the middle of a port involving ArbFloat so I could get arbitrary precision. I had a crude desmos graph doing projections on what I'd already factored in order to get an idea of how long it'd take to do larger
@p100sch speculated on the walked back time, and overstating the rig capabilities. Instead I spent a lot of time trying to get it 'just-so'.
Worse, because I had to resort to "Decimal" in python (and am currently experimenting with the same in Julia), both of which are immutable types, the GC was taking > 25% of the cpu time.
Performancewise, the numbers I cited in the actual thread, as of this time:
largest product factored was 32bit, 1855526741 * 2163967087, took 1116.111s in python.
Julia build used a slightly different method, & managed to factor a 27 bit number, 103147223 * 88789957 in 20.9s,
but this wasn't typical.
What surprised me was the variability. One bit length could take 100s or a couple thousand seconds even, and a product that was 1-2 bits longer could return a result in under a minute, sometimes in seconds.
This started cropping up, ironically, right after I posted the thread, whats a man to do?
So I started trying a bunch of things, some of which worked. Shameless as I am, I accepted the challenge. Things weren't perfect but it was going well enough. At that point I hadn't slept in 30~ hours so when I thought I had it I let it run and went to bed. 5 AM comes, I check the program. Still calculating, and way overshot. Fuuuuuuccc...
So here we are now and it's say to safe the worlds not gonna burn if I explain it seeing as it doesn't work, or at least only some of the time.
Others people, much smarter than me, mentioned it may be a means of finding more secure pairs, and maybe so, I'm not familiar enough to know.
For everyone that followed, commented, those who contributed, even the doubters who kept a sanity check on this without whom this would have been an even bigger embarassement, and the people with their pins and tactical dots, thanks.
So here it is.
A few assumptions first.
Assuming p = the product,
a = some prime,
b = another prime,
and r = a/b (where a is smaller than b)
w = 1/sqrt(p)
(also experimented with w = 1/sqrt(p)*2 but I kept overshooting my a very small margin)
x = a/p
y = b/p
1. for every two numbers, there is a ratio (r) that you can search for among the decimals, starting at 1.0, counting down. You can use this to find the original factors e.x. p*r=n, p/n=m (assuming the product has only two factors), instead of having to do a sieve.
2. You don't need the first number you find to be the precise value of a factor (we're doing floating point math), a large subset of decimal values for the value of a or b will naturally 'fall' into the value of a (or b) + some fractional number, which is lost. Some of you will object, "But if thats wrong, your result will be wrong!" but hear me out.
3. You round for the first factor 'found', and from there, you take the result and do p/a to get b. If 'a' is actually a factor of p, then mod(b, 1) == 0, and then naturally, a*b SHOULD equal p.
If not, you throw out both numbers, rinse and repeat.
Now I knew this this could be faster. Realized the finer the representation, the less important the fractional digits further right in the number were, it was just a matter of how much precision I could AFFORD to lose and still get an accurate result for r*p=a.
Fast forward, lot of experimentation, was hitting a lot of worst case time complexities, where the most significant digits had a bunch of zeroes in front of them so starting at 1.0 was a no go in many situations. Started looking and realized
I didn't NEED the ratio of a/b, I just needed the ratio of a to p.
Intuitively it made sense, but starting at 1.0 was blowing up the calculation time, and this made it so much worse.
I realized if I could start at r=1/sqrt(p) instead, and that because of certain properties, the fractional result of this, r, would ALWAYS be 1. close to one of the factors fractional value of n/p, and 2. it looked like it was guaranteed that r=1/sqrt(p) would ALWAYS be less than at least one of the primes, putting a bound on worst case.
The final result in executable pseudo code (python lol) looks something like the above variables plus
while w >= 0.0:
if (p / round(w*p)) % 1 == 0:
x = round(w*p)
y = p / round(w*p)
if x*y == p:
w = w + i
Still working but if anyone sees obvious problems I'd LOVE to hear about it.39
Windows 10 'App Store' Stole My Money.
So I work a 40 hour work week, sometimes more, same as anyone, on my feet, all day.
I get home, buy a little $3.99 app. Won't install. Check it again won't install. I check some guides. Follow all the standard commands, my purchase won't install. Use the tools. won't install.
Naturally I sent off what I'm good at, some hate filled invective
For fucks sake. I'm exhausted, have insomnia and want to wind down. And here microsoft is killing 32bit libraries to dispose of competing services like steam (also fuck gabe in his fat asshole) but I digress.
And they expect us to use their services? Spend our hard earned *fucking money*..and spend half an hour on their dumpster fire fucking 'walled garden' with nothing to fucking show for it?
No refund button. No chat option. Just a fucking feedback hub. Look at it some time. JUST LOOK AT IT. The motherfucking *feedback* hub *frozeup* in the process of my feedback. Microsoft is a sewer of negligent business practices and incompetence.
So I've chosen now to aim two heavy ion cannons at them and warned them too. Two twitter accounts, one with almost 10k followers and another with 15k.
Should have just offered a manual download button microsoft.
My money would have been better spent on alcohol. Cheap alcohol. It's not like it's a lot of money and I don't buy a lot online, but it's the principle. You're fucking *payment* process worked *just fucking fine*.
Anyway can anyone calculate the monetary damage a cumulative quarter million views over the course of a month will do to the reputation of the windows store in dollar amounts?
I'm betting it's going to be a lot fucking more than three fucking ninety nine.
Don't worry microsoft, I'm gonna take it out of your sweet fucking hide.30
dammit. I fucking hate it when I get stuck because of low level computing concepts and there is no explanation on Google.
like.. I understand the difference between an int and a float, but no one ever explains how you convert 32bit signed vectors to floats. or how bgra and rgba differ. or how to composite two images on a GPU. etc. the internet is great and all, but fuck, sometimes it seems as everyone is just as dumb as I am.4
Our team makes a software in Java and because of technical reasons we require 1GB of memory for the JVM (with the Xmx switch).
If you don't have enough free memory the app without any sign just exits because the JVM just couldn't bite big enough from the memory.
Many days later and you just stand there without a clue as to why the launcher does nothing.
Then you remember this constraint and start to close every memory heavy app you can think of. (I'm looking at you Chrome) No matter how important those spreadsheets or illustrator files. Congratulation you just freed up 4GB of memory, things should work now! WRONG!
But why you might ask. You see we are using 32-bit version of java because someone in upper management decided that it should run on any machine (even if we only test it on win 7 and high sierra) and 32 is smaller than 64 so it must be downwards compatible! we should use it! Yes, in 2019 we use 32-bit java because some lunatic might want to run our software on a Windows XP 32-bit OS. But why is this so much of a problem?
Well.. the 32-bit version of Java requires CONTIGUOUS FREE SPACE IN MEMORY TO EVEN START... AND WE ARE REQUESTING ONE GIGABYTE!!
So you can shove your swap and closed applications up your ass but I bet you that you won't get 1GB contiguous memory that way!
Now there will be a meeting about this issue and another related to the issues with 32-bit JVM tomorrow. The only problem is that this issue only occures if you used up most of your memory and then try to open our software. So upper management will probably deem this issue minor and won't allow us to upgrade to 64-bit... in 20fucking1910
A million years ago I used and loved a WM called waimea. I used it extensively, and even used it on my work machine. It was abandoned by its author for whatever reason, in 2004. I used a derivative wm for a while, called kahakai and loved that too. Since that time, everything has gone from 32bit to 64, and waimea got buried in the past.
Fast forward to this past weekend, when I discovered, on a whim, that there is an AUR for waimea! There was not one for kahakai though-- that appears to have been genuinely abandoned.
So I installed waimea and started working on configuring it, with only a man page and the wayback machine as a reference. As of a couple days into the effort, I'm not quite there yet, but I love the results so far.2
On iOS 11, Apple is no longer allowing you to open apps that are 32 bit. Apple should have given all the developers with 32-bit apps free access to the developer program rather than forcing them to pay a $99 fee to publish a 64-bit version of their app.
This would’ve made better business sense for them as publishers would have had an opportunity to create new apps and see more revenue coming in from upgraded apps. Ultimately more money for Apple. Not sure what dumb fool at Apple HQ thought this was a good idea.6
Starting to hate resharper for visual studio 2015. Pushes studio memory consumption up by almost 1/2gb with a moderately sized solution. Come on jetbrains sort it out we know it's coz you won't integrate with roslyn.
Doesn't help that vs is still 32bit with a 1.5mb memory cap that will kill the process ...... And Microsoft please sort that shit out as well,32bit app on a 64bit system .... Come on WTF.....
You two sort your shit out 😡2
I have a really old Toshiba NB200-10P notebook with Intel Atom CPU and 2 gigs of RAM and 32 bit architecture... It was made for Windows XP, and now it barely runs Windows 7... So I'd like to give new life to this old piece of hardware with Linux (for basic tasks like Office, and maybe coding with Notepad++)...
I really like Manjaro, but after they ditched 32 bit support, the Manjaro-32 community project seems a bit unstable...
So, could you devs please recommend some reliable - and somewhat good-and-simple-looking - Linux distros?22
So, vs2015 is crashing when the process gets to 2gb .... 32bit .net process memory limit strikes again!!! 80 projects in the solution & what looks a run away extension is taking the memory !!!
Come on M$ it should be 64bit on a 64bit system!!
Now the hunt for the extension that's causing it!!
Received a new HP Probook 640 G2 laptop for work, everyone else has theirs as 64bit machines. Yet the idiots who handle hardware and software installs installed windows for a 32bit machine. Well at least I get waste half a day and do nothing while they redo everything and then I have to still get shit done later.
As a teenager learning to code on a computer given by my parents
It hurts to see announcements like mobile development has some limitations on 32bit, or Github Desktop, Adobe XD and the new Unity only supports 64bit8
Soooo today was an interesting day for sure.
Installed Fan for them cause they run fucking hot.
Realized that the fan is 12V and not 24V after plugging it in.
Fan would take off if it was not mounted TBH.
So i reverted all the changes. And ordered 24V fan for it. While i was looking at the site i saw SKR 1.3 for cheaper then ever. 15$.
To be clear thats 32bit board for 3D printer with lot of amazing stuff on it and for just 15$. Thats cheaper then some 8 bit ones that dont even come close to that one.
So yes i ordered one.
Excited AF for it as i wont have to have a huge mess of wires cause they support TMC UART mode of the fucking box. YAY.
And i tried printing at 150mm/s.
God that was crazy to watch. Sure the print doesnt look amazing but for 150mm/s its amazing quality for sure.
And the best thing of today. The reveal of Cyberpunk 2077 15 minute gameplay. It looks really good i must say.
So glad i preordered that soon.
!rant from a support guy
I was tasked to migrate an Exchange 2003 server (yes, those are still used) for an upcoming Office 365 deployment. There are no direct upgrade path from one another, as far as we know
My task was to export PSTs from mailboxes. Great, a native tool exist for that in 2003 (exmerge). But only for less than 2 GB mailboxes because ANSI/Unicode! Half of our mailbox busts that limit. Oh, it seems Exchange 2007 has a PowerShell command for exporting to PST as well! But pre-SP3, that command relies on a local installation of Outlook on the server (DAFUQ), and has been superseded by another "standalone" powershell command. So I install a bogus Windows 2012 server only for that purpose, with Exchange Management Tools (which, by the way, is bundled with the Exchange installation setup and REQUIRES to have IIS installed on the target machine. Also, if you install ONLY the Exchange 2007 Management Tools and wish to uninstall them afterwards, you can't because the uninstaller wants me to select an Exchange Role to remove, which are all unchecked in my tools-only setup). Never worked, and Google-fu says that the newer Exchange 2007 New-MailboxExportRequest command seems to have removed Exchange 2003 support.
So i'm back to installing a pre-SP3 Exchange 2007. Then the older Export-Mailbox powershell command whines about 64bits and 32bit incompatiblity-- actually I ***HAVE*** to have the whole OS/software stack 32bit ONLY. Don't ask me why!
Some article I found says I could fire up an XP virtual machine for that, I go for Win 7 x86. "Sorry, Microsoft Exchange won't be installed on a workstation environment because reasons." All right then, let's go for an old Windows Server 2003 x86. Have you tried to boot this up in an Hyper-V environment where mouse and keyboard support for Windows Server 2003 are apparently optional? No keyboard AND mouse events sent to the guest machine at all.
* Sigh *, let's use a Windows Server 2008, but WATCH OUT! Microsoft has discontinued x86 support on their W2008 R2 release, so non-R2 for me. Even then, mouse event wasn't sent until I installed guest additions.
After all, export-mailbox ended up working, but that costed me two days of banging my head against the wall. (Oh, and I take internal calls inbetween as well...)
And that's why I aspire to be a programmer. Thank you for nothing, Microsoft!4
So.. I'm migrating a physical server to a virtual (Hyper-V) one.
The physical server is running Windows Server 2008 R2 with IIS6 and Windows SQL Server 2012.
I've set up a VM with Windows Server 2016, IIS10 and Windows SQL Server 2017.
I'm testing with just moving 1 db at a time (we have about 20, 1 per client running this software and a few others) and I've already imported all of the IIS sites.
So the database import and IIS import went smoothly and was surprisingly without hassle but now I'm trying to run the website that I imported the database for and it is throwing 503 Errors at me.
I've been trying to find out the cause but for some reason IIS isn't making any logs.
It's not any 64/32bit system problems (they're both x64) and I can't seem to find anything wrong with the imported config.
Anyone got any ideas?18
ATTENTION PLEASE! Important announcement following:
Please check your interface implementations for correct byteorder according specification BEFORE YOU START COMPLAINING ABOUT DATA FAILURES ON EXCHANGING DATA.
Freakin hell, if I'd get some money for every byte order mismatch on testing interfaces, I'd be a be a billionaire.
And why are all those highlevel I-know-every-fucking-framework developer incapable of checking the real memory content of a datatype, and the real data content on the interface even if you tell them that their byte order is obviously wrong?
No, your system is not the centre of the universe and I don't care how you get your less-than-32bit-datatypes-are-for-assembler-usage-frameworks to change byteorder. It's not rocket science, if there's no ready-to-use-function then write those 4 lines yourself.
Next time I get to specify an interface I'll go for mixed-endian, just to make sure everybody involved knows the concepts of endianess afterwards.2
Boss told me to create a Docker Container for my Selenium Tests...
Mission Failed, my boss gave me a 32bit Windows mashine...
Probably i should install a new OS...
VS 2017 15.3
dotNet Core 2.0
SSDT 17.2 (I think)
SSAS VS 2017 Package
SSRS VS 2017 Package
> Where the hell is the SSIS VS 2017 Package ???
VS Code 32bit
> Found 64bit is out, manually uninstalled 32bit, installed 64bit
Also wrote seed data for my program so I can continue development.
First Nvidia drivers problem on Linux in 5 years. Due to multiarch (32bit executable, 64bit drivers). Had to happen in a rush.1
FUCK EMMC AND 32BIT UEFI WITH A BIG RUSTY POLE.
Wow that helped actually...
Now then... If anyone has any suggestions on how to actually boot Ubuntu after installation on Asus x205ta I will give them my first born son.
My face when I went to install Oracle’s JDK 9 on a 32-bit Windows 7 laptop and found they don’t support it anymore:
I fucking love 32bit boards in 3D printers. And when they are paired with TMC2208/9 oh god the perfect mix.
I just upgraded my printer. Cant say it was hard upgrade as EXP connectors were rotated but oh well.
When i got all shit working i launched a print and i was scared as moving the axis created weird sound. Nothing to worry about now. Just too tightened the X axis. Oh well. Then it was silent. And i mean silent.
Sure the fans were loud but some silent fans which are expensive AF as it seems and it will be perfect.
Could somebody please help me understand why the fucking hell does JS (I am talking about node.js, so backend) use 32bit integers in setTimeout and setInterval? I mean, I understand most of the choices regarding the language (I have chosen programming languages design and principles for my studies) and I am happily using it for almost 4 years. But I came across an occasion that I had to use big numbers in those functions and it took me a lot of time to figure out why the fuck my code was not working as it was supposed to.
If anyone has a good reason please elaborate. In the meantime I'll go punch some shit to calm down.10
So I have an array of length 20 which stores a 64 bit decimal number by digits. The starting address is let's say array64. When I am trying to build up my number in ECX:EBX, I am using EDX as the iterator to access the individual elements of the array (I am loading them into AL)
MOV AL, [array64+EDX]
The problem is: somehow EDX cannot get higher than 10, so the program just stops and waits for input, when I try to work with a 12 digit number...
This module is outside the main function, and I thought about some Far Pointer problems, but all of my ideas just failed...
What is wrong here?1
nothing new, just another rant about php...
php, PHP, Php, whatever is written, wherever is piled, I hate this thing, in every stack.
stuff that works only according how php itself is compiled, globals superglobals and turbo-globals everywhere, == is not transitive, comparisons are non-deterministic, ?: is freaking left associative, utility functions that returns sometimes -1, sometimes null, sometimes are void, each with different style of usage and naming, lowercase/under_score/camelCase/PascalCase, numbers are 32bit on 32bit cpus and 64bit on 64bit cpus, a ton of silent failing stuff that doesn't warn you, references are actually aliases, nothing has a determined type except references, abuse of mega-global static vars and funcs, you can cast to int in a language where int doesn't even exists, 25236 ways to import/require/include for every different subcase, @ operator, :: parsed to T_PAAMAYIM_NEKUDOTAYIM for no reason in stack traces, you don't know who can throw stuff, fatal errors are sometimes catchable according to nobody knows, closed-over vars are passed as functions unless you use &, functions calls that don't match args signature don't fail, classes are not object and you can refer them only by string name, builtin underlying types cannot be wrapped, subclasses can't override parents' private methods, no overload for equality or ordering, -1 is a valid index for array and doesn't fail, funcs are not data nor objects when clojures instead are objects, there's no way to distinguish between a random string and a function 'reference', php.ini, documentation with comments and flame wars on the side, becomes case sensitive/insensitive according to the filesystem when line break instead is determined according to php.ini, it's freaking sloooooow...
enough. i'm tired of this crap.
it's almost weekend! 🍻2
Alright, Kotlin, I really like you but...
WHY TF IS 0xFFFFFFFF A LONG. WHY DO YOU TAKE THIS PERFECTLY FINE, BUT SIGNED, 32BIT AND USE IT AS A FUCKING LONG. NOW I'M SUPPOSED TO APPEND .toInt() AT EVERY TIME I WANT SOME HEX EVALUATED AS A COLOR.
THIS IS NOT OK, I NEED ANSWERS. HOW SHIT INTO YOUR BRAIN AND THOUGHT THIS WAS FINE!!!1
Today I got my login credentials for our Task Delivery Tool (called WMS TI)...
It is by far the most ugliest and user unfriendly program on the planet!! It looks like you made an macro for Excel 2000. It's bloated with features only 0.1% of the company needs them! (Biggest telecommunication provider Germany's) and it's lame! Even worse: we still use Windows 7 32bit.... Why the fuck is a company which develops smart home, self driving cars and cyber defense systems such an oldie!1