mersenneforum.org

mersenneforum.org (https://www.mersenneforum.org/index.php)
-   NFS@Home (https://www.mersenneforum.org/forumdisplay.php?f=98)
-   -   Fast Breeding (guru management) (https://www.mersenneforum.org/showthread.php?t=20024)

wblipp 2015-02-26 04:12

[QUOTE=chris2be8;395832]
[QUOTE=debrouxl;395758]Go ahead for 5443^59-1 :smile:[/QUOTE]
Done.
[/QUOTE]

Not yet in factordb.

wblipp 2015-02-26 04:24

[QUOTE=debrouxl;395758]
* the quartics are probably well out of reach for 14e[/QUOTE]

How small must a quartic be? I've got a P58^5-1 that has had a t50, but it sounds like SNFS 231 is too big.

chris2be8 2015-02-26 16:44

[QUOTE=wblipp;396406]Not yet in factordb.[/QUOTE]

Sorry, bad wording on my part, I meant "done" in the sense of the deal is done, not that I'd factored it. I should have said "Taken". ETA about 3 days from now.

Chris

fivemack 2015-02-26 18:18

Picking a random P58 (3141592653589793238462643383279502884197169399375105821707)

14e, small prime 10^8, 32-bit large primes, rational side => yield ~1.0 rel/Q, time ~0.161s/rel

15e, small prime 10^8, 32-bit large primes, rational side => yield ~2.6 rel/Q, time ~0.123s/rel

(16e, small prime 10^8, 32-bit large primes, rational side => yield ~7.0 rel/Q, time ~0.136s/rel)

So: yes, 15e is the way to go. Tell me the value of p and I'll put it up on the 15e queue.

wblipp 2015-02-26 20:46

Thanks. Is the 15e queue adequately stocked?
[CODE]P58=4634428357056524094275270112238036268732742651439283929441[/CODE]
William

fivemack 2015-02-27 07:12

OK, that's on the queue. No idea when it will get done - I think the queue is long enough that even the Challenge won't burn through it, so it may take months before your number reaches the top of the queue and gets sieved in a few days.

wblipp 2015-03-03 04:16

How's the 14e queue looking? In the OPN thread RichD has announced finishing ECM for these five numbers, ranging from 237 to 240 digits:

7487^61-1
7673^61-1
8111^61-1
8447^61-1
8543^61-1

wblipp 2015-03-06 22:23

[QUOTE=fivemack;396529]it may take months before your number reaches the top of the queue[/QUOTE]

I realized that this numbers has ECM to 2/9 the SNFS size, but it should have more than this to compensate for the Quartic penalty. I figured a few months would give me ample time to quietly get the extra ECM and pull the number if a factor was found. But that plan has been foiled by the advancement of all queued numbers to sieving status in preparation for the upcoming Challenge. Please accept my apology and de-queue the number, replacing it with better prepared numbers.

William

pinhodecarlos 2015-03-13 19:01

Be aware that we need to feed more 14e and 15e tasks.

debrouxl 2015-03-13 21:08

I have just moved all queued 14e tasks to the sieving state.

pinhodecarlos 2015-03-13 21:32

Thank you but still not enough. I see more teams involved on this challenge than on the previous one.


All times are UTC. The time now is 20:35.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.