Collatz Conjecture

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rebirther
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Collatz Conjecture

#1 Post by rebirther » 12.07.2009, 06:42

http://boinc.thesonntags.com/collatz/

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Collatz Conjecture is a research project that uses Internet-connected computers to do research in mathematics, specifically testing the Collatz Conjecture also known as 3x+1 or HOTPO (half or triple plus one). You can participate by downloading and running a free program on your computer.
Collatz Conjecture is based in Wood Dale, Illinois, USA and continues the work of the previous 3x+1@home BOINC project which ended in 2008.
Last edited by rebirther on 28.07.2009, 18:21, edited 1 time in total.

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#2 Post by rebirther » 28.07.2009, 18:19

And now, for something completely different....
July 27, 2009, 20:48 CST

Version 1.10 of the app has been released for Win32, Win64, Linux and CUDA. ATI (CAL) apps are also available for Win32 and Win64. Any results submitted from previous versions will NOT be granted credit as the output of the new version is no longer compatible with the previous version. So, if you have any workunits from prior to v1.10, you can go ahead and abort them.

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#3 Post by rebirther » 18.09.2009, 14:43

New applications released, credit adjustment coming soon
September 17, 13:57 CST

Collatz applicaton version 2.0 is being released. Credits will be adjusted within the next day or so. When that happens, any results submitted with the v1.10 applications will receive reduced credit. In the mean time, you may either continue to process the existing workunits knowing you will receive reduced credit or abort them and start new ones using the new application version. Any aborted WUs will be resent using the new application version.

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#4 Post by rebirther » 07.09.2010, 18:08

Es scheint als ob Collatz wieder mal nach Monaten einen neuen Rekord gefunden hat: 2620 Steps

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#5 Post by rebirther » 05.06.2011, 11:17

Collatz-Problem gelöst?

Quelle

Man könnte diese Vermutung sicherlich mit dem Projekt prüfen.

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#6 Post by odicin » 27.07.2011, 21:16

Slicker arbeitet momentan an einer Multithread App, wie Sie auch Aqua und N-Body bei Milkyway nutzen.

http://boinc.thesonntags.com/collatz/fo ... php?id=774

Seine bisherigen Tests sind vielversprechend, er will das ganze dann auch über die Project Preferences auswählbar machen.

Gruß Odi

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#7 Post by rebirther » 21.06.2013, 20:23

Collatz now with Badges, more infos in our wiki

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#8 Post by DoctorNow » 21.04.2018, 18:05

Bin mir nicht 100% sicher warum und es wird auch nicht explizit in der News erwähnt, ich meine aber irgendwo gelesen zu haben, irgendjemand hätte bei Collatz gecheatet - Slicker hat deshalb wohl das Projekt und die App vor knapp drei Tagen völlig neu aufgesetzt.
18 Apr 2018, 4:53:08 UTC
Use at your own risk

I'm testing the validator, work generator, assimilator, and applications. It may or may not work which means you may or may not get credit for your work. There is still a lot of work to do but I'm making progress.
Die eigenen Creditwerte dürften aber noch dieselben sein - solange man nicht selbst der Cheater ist vermutlich. ;-)
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#9 Post by rebirther » 21.04.2018, 18:37

DoctorNow wrote:Bin mir nicht 100% sicher warum und es wird auch nicht explizit in der News erwähnt, ich meine aber irgendwo gelesen zu haben, irgendjemand hätte bei Collatz gecheatet - Slicker hat deshalb wohl das Projekt und die App vor knapp drei Tagen völlig neu aufgesetzt.
18 Apr 2018, 4:53:08 UTC
Use at your own risk

I'm testing the validator, work generator, assimilator, and applications. It may or may not work which means you may or may not get credit for your work. There is still a lot of work to do but I'm making progress.
Die eigenen Creditwerte dürften aber noch dieselben sein - solange man nicht selbst der Cheater ist vermutlich. ;-)
Ja, das war einer von gridcoin, den ich auch hatte, zumindest konnte ich die ganzen fehlerhaften WUs neu berechnen lassen und den host sperren, hier gehts nur ums Geld und da ist wohl jedes Mittel recht. Manipuliert wurde ein File, das die Berechnung nur ein paar sek. ausführt und dann valid erscheint.

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Re: Collatz Conjecture

#10 Post by odicin » 07.06.2022, 09:33

collatz: Finish Up Your Work
I'll be losing my "computer room" in my basement this week while water seepage mitigation is done. After that, the house goes on the market as I'll be relocating to a state with nicer climate with fewer corrupt politicians and lower taxes. The result is that the Collatz project will be down for some time. Please set your machines to get no new work because you likely won't be able to return the work before it times out. The work starts Wednesday so I have to have everything cleared out prior to that so it may be Monday or Tuesday when it gets shut down. Once I move, I don't know how reliable the broadband will be, but I'm hoping that since it will be fiber and not cable TV based, it will be decent. It should be faster and less expensive, but I can't predict when the Collatz project will be back online at this time.
Hier ist also erst mal Pause...

Gruß Odi

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Re: Collatz Conjecture

#11 Post by DoctorNow » 10.04.2023, 12:28

Dreiviertel Jahr ist rum und Collatz ist (noch) nicht wieder online.
Ich leg das jetzt erstmal still - vielleicht kommt's ja wieder...
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