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-   -   CUDALucas (a.k.a. MaclucasFFTW/CUDA 2.3/CUFFTW) (https://www.mersenneforum.org/showthread.php?t=12576)

lycorn 2010-11-10 23:13

The triple check mat be performed by any of the programs used for LL.
It´s just that it takes a hell of a time... unless you have a real fast machine, like a GPU:whistle:
May be in a couple of weeks, when the current DC milestone is past, I´ll give it a go, if no GPU clears it in the meantime.

Prime95 2010-11-10 23:20

[QUOTE=lycorn;236564]The triple check mat be performed by any of the programs used for LL.[/QUOTE]

The double-check must be done by a different program OR a program that supports initial shift counts.

lycorn 2010-11-11 08:17

Ok, I see.
Does that rule out using a GPU running CUDALucas as triple checker?

Prime95 2010-11-11 14:30

[QUOTE=lycorn;236626]Does that rule out using a GPU running CUDALucas as triple checker?[/QUOTE]

Yes. If msft's residue is correct, a program other than CUDALucas must provide the double/triple-check.

henryzz 2010-11-11 17:38

[QUOTE=Prime95;236654]Yes. If msft's residue is correct, a program other than CUDALucas must provide the double/triple-check.[/QUOTE]
unless the necessary shift is implemented?
or is CUDALucas not sufficiently trusted to provide both tests?

mdettweiler 2010-11-11 20:33

[QUOTE=henryzz;236692]unless the necessary shift is implemented?
or is CUDALucas not sufficiently trusted to provide both tests?[/QUOTE]
As I understand it, CUDALucas does not (yet) support a variable initial shift count, so it can't be used to doublecheck itself (or in this case, triplecheck).

msft 2010-11-13 05:12

Hi ,All
I can wait someone up for a third check.:lol:

nucleon 2010-11-13 23:21

[QUOTE=msft;236911]Hi ,All
I can wait someone up for a third check.:lol:[/QUOTE]

The estimated time to complete on my machine is May next year.

-- Craig

msft 2010-11-14 02:18

Thank you ,nucleon :smile:

ET_ 2010-11-15 18:02

M( 67239937 )C, 0xf2dc9fbf28e585__, n = 4194304, MacLucasFFTW v8.1 Ballester

:smile:

Luigi

msft 2010-11-16 04:29

[QUOTE=ET_;237212]M( 67239937 )C, 0xf2dc9fbf28e585__, n = 4194304, MacLucasFFTW v8.1 Ballester
[/QUOTE]
Good News.:lol:


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