20150817, 07:32  #2333  
May 2007
Kansas; USA
11×937 Posts 
Quote:


20150818, 14:57  #2334 
Dec 2011
After milion nines:)
5×281 Posts 
S737 and S803
Reserving S737 and S803 up to 400K

20150819, 01:47  #2335  
Jun 2008
Wollongong, .au
3×61 Posts 
Quote:
I have run srsieve for R675 and S576 to 1e9, and am now sieving using sr2sieve to extend that further. Factors at being removed at >1/sec for both bases, so it's got a little way to go. What is the perceived wisdom for swapping from sieving to primality testing? When the time to find a factor is half the length of a primality test? 20%? 10%? (Edit: I've done some searching on the forum, and have seen some varying suggestions. 70% comes up a few times.) Last fiddled with by paleseptember on 20150819 at 01:59 

20150819, 03:33  #2336  
"Curtis"
Feb 2005
Riverside, CA
11102_{8} Posts 
Quote:
However, that number assumes you're going to test every candidate in the file for primality, which is not the case with CRUS. So, our "average" test is a ways lower in the file than 70%. Halfway is a reasonable estimate, lower if your base produces many primes or your file covers a wide range (2.5k to 25k is pretty wide, a factor of 10). I would sieve until factor rate is equal to a primality test at about 8k, then test the file from 2.5k to 10k, remove primed k's and exponents below 10k, and then continue to sieve the rest until factor rate is equal to a primality test at around 18k. Hope this helps! 

20150820, 13:32  #2337 
May 2008
Wilmington, DE
2^{2}·23·31 Posts 
S808
Reserving S808 to n=25K
EDIT: I am testing this using the posted file to n=2500. Last fiddled with by MyDogBuster on 20150902 at 18:54 
20150821, 12:21  #2338 
May 2008
Wilmington, DE
2^{2}×23×31 Posts 
S997
Reserving S997 to n=25K

20150821, 18:46  #2339 
May 2008
Wilmington, DE
2^{2}·23·31 Posts 
S592
S592 tested n=250025K
400 primes found  370 remain Results emailed  Base released 
20150822, 07:22  #2340 
Sep 2011
Germany
A9E_{16} Posts 
Reserving R792 to n=100k (50100k) for BOINC

20150823, 07:54  #2341 
Sep 2011
Germany
5236_{8} Posts 
Reserving S533 to n=200k (100200k) for BOINC

20150823, 16:06  #2342 
Sep 2011
Germany
2·3^{2}·151 Posts 
Reserving S1018 as new base with srbsieve, KEP will give me the srbsieve.ini with the right phases. Running up to n=10k, I will create a sievefile for n=1025k after the run for the future.
Last fiddled with by rebirther on 20150823 at 16:08 
20150826, 20:17  #2343 
Sep 2011
Germany
2718_{10} Posts 
S533 tested n=200k (100200k)
nothing found Results emailed  Base released 
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