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-   -   P-1 factoring anyone? (https://www.mersenneforum.org/showthread.php?t=11101)

petrw1 2011-11-25 02:31

[QUOTE=James Heinrich;279763]There's [url=http://mersenne-aries.sili.net/p1small.php?prob=2&min=44700000&max=44800000&onlystage1=0&ignorenop1=0&showassigned=0]hundreds of them[/url] (change the dropdown from "ignore LL tests left" to "1 LL test left" to see the counts and ranges).[/QUOTE]

I believe he is referring to DC's at the current wavefront; aka the GPU to 72 range; aka 25M-30M.

Granted some are to poor bounds or with no stage 2 but all have some P-1.

davieddy 2011-11-25 02:56

OK the "Newbie" bit was a jest
 
[QUOTE=davieddy;279745]
If we decide on the optimum TF and P-1 bounds, it is of marginal
importance when we do the P-1, since most of the time no factor
will be found. So GPUs should go all the way on TF without waiting
for the P-1 which won't get done anyway. Right?

David[/QUOTE]

Nice example: I'd bagged some 45M expo [URL="http://www.youtube.com/watch?v=i5Tiqv4Irjshttp://www.youtube.com/watch?v=i5Tiqv4Irjs"]after midnight[/URL] TFed to 68, no P-1, and asked Eric Clapton to do some TF while I did P-1. No thought from either of us that
one should go first. He just asked me to let him know if
I'd found a factor, and vice versa:smile:

David

James Heinrich 2011-11-25 03:42

[QUOTE=petrw1;279774]I believe he is referring to DC's at the current wavefront; aka the GPU to 72 range; aka 25M-30M.
Granted some are to poor bounds or with no stage 2 but all have some P-1.[/QUOTE]Yes they do, cause I already did all the ones that didn't already have P-1 done. :smile:

Jwb52z 2011-11-25 06:45

I know it would take some changes that George doesn't have time for, unless I misunderstand how it works, but I really wish I could get some P-1s that aren't in what someone else called "no man's land" and that are closer to the currently not reached first time LL exponents to help get rid of some of those candidates, which would save time. The problem is, I don't want to have to do it manually because I'm a bit stupid when it comes to that kind of thing.

James Heinrich 2011-11-25 14:35

[QUOTE=Jwb52z;279782]I really wish I could get some P-1s that aren't in what someone else called "no man's land" ... I don't want to have to do it manually[/QUOTE]Just set your preferred worktype to P-1 and you'll automatically get P-1 assignments a little ahead of the L-L curve. P-1 assignments are slightly ahead of the LL wavefront to give a little room for the [url=http://www.mersenneforum.org/showthread.php?t=16211]GPU-TF enthusiasts[/url] to quickly clean up the just-in-front-of-the-wave space, but that's definitely a manual thing (although not that complicated, just a little copy-paste every few days).

Christenson 2011-11-25 17:44

[QUOTE=James Heinrich;279819]Just set your preferred worktype to P-1 and you'll automatically get P-1 assignments a little ahead of the L-L curve. P-1 assignments are slightly ahead of the LL wavefront to give a little room for the [url=http://www.mersenneforum.org/showthread.php?t=16211]GPU-TF enthusiasts[/url] to quickly clean up the just-in-front-of-the-wave space, but that's definitely a manual thing (although not that complicated, just a little copy-paste every few days).[/QUOTE]

If he doesn't mind the copy and paste, then the GPU to 72 tool is looking for P-1 help; it's a little closer "into" the wavefront than just setting the worktype to do P-1.

Bdot 2011-11-25 21:07

[QUOTE=Jwb52z;279782]"no man's land"[/QUOTE]
This IS what you currently get when taking primenet's P-1: exps beyond 60M, not just "a little ahead of the L-L curve". I had to change all my P-1 workers from auto-primenet to G72 manual. I'm not excited about that - though I'm happy about GPU-to-72 providing useful P-1 tasks.

lycorn 2011-11-26 00:26

[QUOTE=davieddy;279776] and asked Eric Clapton to do some TF while I did P-1. [/QUOTE]

Davieddy, you´re really [URL="http://www.youtube.com/watch?v=vUSzL2leaFM&ob=av2e"]wonderful tonight [/URL]... that must have been quite a duet.

davieddy 2011-11-26 09:21

[QUOTE=lycorn;279888]Davieddy, you´re really [URL="http://www.youtube.com/watch?v=vUSzL2leaFM&ob=av2e"]wonderful tonight [/URL]... that must have been quite a duet.[/QUOTE]
Peaches and Cream

davieddy 2011-11-26 09:38

[QUOTE=lycorn;279888][URL="http://www.youtube.com/watch?v=vUSzL2leaFM&ob=av2e"]wonderful tonight [/URL][/QUOTE]
I've always had two objections to this song.
The first is minor: it's too girly and soppy for my taste.

The other one is that the song is about Patti Boyd. I don't think his mate the late George Harrison ever forgave him for
stealing her from him.

David

lycorn 2011-11-26 12:10

It´s not one of my favourites either. But it´s one of his classics, and besides I couldn´t help using it for my (light hearted) comment. Hope you didn´t mind...


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