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-   -   Automated P-1 thoughts. (https://www.mersenneforum.org/showthread.php?t=2266)

nucleon 2004-03-24 11:04

Automated P-1 thoughts.
 
Okay I've only done the automated P-1 method two days running, and I don't like it. :huh:

Today as an example, I'm running the P-1 checks for 8hrs/day. At the start of the day the client grabs 10 double checks. From the logs, I gather that only one hadn't been previously P-1'd, so the sole P-1 check was completed 90mins into the 8hr cycle, so 6.5hrs is wasted (as I'll terminate the double check LL prematurely)

So if I want to do P-1 checks, I think it's best I'll claim them manually from this forum. It's a pity 'cause I wanted the automatic method to work as I wanted prime credit (Rank 542 and counting) :)

I think I'll leave the automated method for P-1 factors until it's integrated in the prime95 client. (i.e it's just a tick box to select)

-- Craig (account S90106)

dave_0273 2004-03-24 12:08

I agree with you. When GP2 first left the forums, i tried the semi-automated method. But like you i just couldn't get enough work to do. I don't really care about primenet credit and thats why I now continue to do it manually. I don't mind posting sets for other people to do. Now that I have written a program to do it all, it only takes me a couple of minutes to find exponents that haven't been p-1 tested and post them on the forum.

markr 2004-03-24 12:23

Good points, Nucleon...

I agree, exponents without P-1 are too thinly spread in the current DC ranges for the fully automated method, unless a line of normal work is left at the top of the worktodo to be done after the P-1 tests. Maybe the earlier P-1 work by the Mersenne-aries has already filled in most of the gaps?

One way to get P-1 work through PrimeNet might be to find exponents that need P-1 just ahead of PrimeNet's assignments but still in its ranges, add them to the worktodo, & connect manually. PrimeNet will remove any that are assigned to others.

P-1 testing adds to factoring credit, not LL credit, so I guess it depends whether you want to move ahead in one or both rankings. Of course a single P-1 test only gives 0.001 credit! Happy crunching!

Complex33 2004-03-25 02:45

The way I handle it on a friends computer with 4gigs of RAM is pickup a bunch of DC's until I get about 200 or so that are needing P-1 factoring. Dump the rest and there is enough work for a while :)


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