20201230, 21:13  #606 
"Nuri, the dragon :P"
Jul 2016
Good old Germany
2·401 Posts 
I can provide the following bases for deeper sieving:
R709, 100K250K R711, 100K250K R798, 200K500K R806, 400K1M R1017, 250K500K 
20201231, 04:34  #607  
May 2007
Kansas; USA
13^{2}×61 Posts 
Quote:
It's no big deal if Pepi has Yoyo sieve these. But I suggest sieving them to their usual depth that they have always done, not the deeper depth. 

20201231, 14:32  #608  
"Nuri, the dragon :P"
Jul 2016
Good old Germany
2×401 Posts 
Quote:
Those are sieved up to 25e9 and one up to 50e9 and would recommend to sieve them deeper with yoyo@home. 50e12 sounds like a fair value for them. 

20201231, 14:59  #609 
Dec 2011
After milion nines:)
2·19·37 Posts 
All is OK, I will made and sent to YOYO all sieves: for him it is irrelevant how deep is initial sieve.

20210101, 14:58  #610 
"Nuri, the dragon :P"
Jul 2016
Good old Germany
322_{16} Posts 
Goal 4 is an large amount of work.
I am not sure if srsieve2 can handle that large k. (srsieve could, but its very slow) Other than that i am willing to help sieving on R3. According to the Remain side "only" 35G55G is left, or do you already have an sieve file for that range? Other than that i dont thing i cant contribute that much this year. Main focus for me is NF@home. 
20210101, 15:10  #611  
"Mark"
Apr 2003
Between here and the
14146_{8} Posts 
Quote:
I'll give it a spin and let you know what happens. 

20210101, 17:27  #612 
"Mark"
Apr 2003
Between here and the
2·3^{2}·347 Posts 
Seems to work fine with all remaining k between 25G and 60G:
Code:
srsieve2 P1e9 n5e4 N1e5 sr3.in W6 srsieve2 v1.3, a program to find factors of k*b^n+c numbers for fixed b and variable k and n (kp) Sequence has algebraic factorization: 46908629056*3^n1 > (216584^2)*3^n1 (kp) Sequence 46908629056*3^n1 has 25001 terms removed due to algebraic factors of the form 216584*3^(n/2)1 Sieving with generic logic Sieve started: 3 < p < 1e9 with 4944273883 terms (50000 < n < 100000, k*3^n+c) (expecting 4682160754 factors) p=1213, 0.656 p/sec, 4560646177 factors found at 262.5K f/sec (last 1 min), 0.0% done. ETC 20970906 18:43 Sieving with generic logic Split 98884 base 3 sequences into 98884 base 3^1 sequences. p=1571749, 304.1 p/sec, 4758573825 factors found at 2.019K f/sec (last 1 min), 0.2% done. ETC 20210224 07:05 srsieve2 with 6 threads is taking about 2G of memory. The ABCD file is less than 700M I will let this run longer, but I'm not certain that I will finish the sieving to 1e9. 
20210101, 18:51  #613  
Quasi Admin Thing
May 2005
31^{2} Posts 
Quote:
I fooled around recently, when getting familiar with srsieve2, trying to sieve ALL k's remaining for S3  none of them failed to sieve. To be honest I would be surprised, if any of our current confined amount of conjectures has k's that fail to be able to be sieved  the only possible conjecture for reaching a limitation of k, could and would only be R280  but it is not gonna be started for many years, so it is  if it should be a concern  not really a current concern 

20210101, 19:12  #614  
Sep 2011
Germany
2·3^{2}·151 Posts 
Quote:


20210101, 20:49  #615  
"Mark"
Apr 2003
Between here and the
1866_{16} Posts 
Quote:
There are two options. One use a smaller w so that the threads have less work per iteration. The other is to rename the output file from the previous checkpoint and hit ^C twice. 

20210101, 20:53  #616 
May 2007
Kansas; USA
13^{2}·61 Posts 
R3 is already fully sieved by me. Otherwise I would not have made it a goal.
I used srsieve. It worked well. It was easy enough to split the sieve into multiple kranges and then combine them all at the end. Running multiple instances of srsieve seemed much faster than srsieve2. Last fiddled with by gd_barnes on 20210101 at 20:55 
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