mersenneforum.org

mersenneforum.org (https://www.mersenneforum.org/index.php)
-   Lone Mersenne Hunters (https://www.mersenneforum.org/forumdisplay.php?f=12)
-   -   Coordination thread for redoing P-1 factoring (https://www.mersenneforum.org/showthread.php?t=23152)

Ensigm 2020-11-22 16:18

Previous ranges 54.5 M (B1=B2≤730,000) and the second half of 55 M (B1=B2≤690,000) should now be finished and I am "unreserving" them.

Report for range 54.4 M (B1=B2≤730,000): 0 factors found in 18 attempts (0%). Expected probability 3.81%~3.83%.

Report for range second half of 55 M (B1=B2≤690,000): 0 factors found in 12 attempts (0%). Expected probability 3.89%~3.92%.

Currently working on:
- the first half of 56 M (B1=B2≤690,000)

Ensigm 2020-11-24 13:38

Now intending to work on the exponents in the second half of 56 M that has B1=B2≤700,000 [B]and[/B] without a DC.
As most of the exponents will be in Cat 3 and higher, I will reserve every exponent as TF before I start my work. If you see an exponent that is not currently reserved in the Primenet system, then it simply means I am not working on it. Declaration here is more for the recording of progress.

Currently colloquially "reserved":
- the first half 56 M (B1=B2≤690,000)

Currently intending to do (will Primenet-reserve every exponent before I actually start working on it, so you don't have to avoid anything——there is no risk of me poaching your factor):
- the second half 56 M (B1=B2≤700,000)

Ensigm 2020-12-05 04:54

Report for the second half of 56 M (B1=B2≤700,000): 2 factors found out of 35 attemps (5.71%). Expected prob. 3.93%~3.94%.

Now intending to work on the exponents in the first half of 57 M that has B1=B2≤700,000 [B]and[/B] without a DC. I will reserve every exponent as TF before I start my work on it, so you don't have to avoid them.

Currently informally "reserved":
- the first half 56 M (B1=B2≤690,000)

Currently planning to do (will Primenet-reserve every exponent):
- the first half 57 M (B1=B2≤700,000)

ixfd64 2021-01-19 17:17

I'm finishing up the exponents in the 13m - 13.1m range where B2 < 1.9 million.

tha 2021-04-17 20:47

I am currently doing the 9M range with B1=2.000.000 and B2 then will be around 162.000.000

I don 't know what just happend, but 12 out of the last 100 attempts resulted in factors found, two of them even doubles, so 14 total. And one 124 bits in size

bur 2021-12-08 18:43

I began P-1 work with B1=2M for exponents that aren't DC'ed yet and have only Stage 1 completed. I'm not sure how fast I'll progress, so [B]I'll reserve 60.5M to 60.6M[/B] but if someone wants part of that range, please just let me know. After all it's close to the DC wavefront, so it might be an interesting range to some.

bur 2021-12-17 09:45

Range is completed up to 60.55M and the larger exponents can be registered with Primenet. So consider the range dropped.

3 factors / 40 P-1 came from the search so far. With B1=2M that's not great in terms of efficiency when compared to LL validating, but my main goal was factoring so I'm more than fine with the outcome.

ric 2021-12-21 23:36

54M to 55M
 
Presently doing 54M to 55M, working on candidates with no stage 2 done, now with gpuowl v6.11-380 on a Colab free GPU instance (Tesla K80, currently).

Some 2100 candidates overall, almost halfway: so far 28 factors found (~2.6%) out of 1050 attempts, a little below expected probability (~2.9%).

No ETA, but I'm not in a hurry :)


All times are UTC. The time now is 13:05.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, Jelsoft Enterprises Ltd.