20201005, 16:50  #2157 
Sep 2011
Germany
2×3^{2}×5×31 Posts 
S385 tested to n=2.5k + sieved to 1G (2.510k)
7608 remain Results emailed  Base released 
20201008, 07:13  #2158 
May 2007
Kansas; USA
2·5·17·61 Posts 
S394 is complete to n=300K; no primes were found for n=200K300K; 2 k's still remain; base released.

20201009, 22:41  #2159 
"Curtis"
Feb 2005
Riverside, CA
2·2,393 Posts 
Trying new base R400; planning to take it to 10k.

20201010, 04:48  #2160 
May 2007
Kansas; USA
2×5×17×61 Posts 
Several CPU years worth of work. I'm sure you're aware to remove k's that are squares. After removing k's with trivial factors there are 953 squared k's that need to be removed. There is a list of them in a link on the main page. 
20201010, 06:16  #2161  
"Curtis"
Feb 2005
Riverside, CA
2·2,393 Posts 
Quote:
Update: R327 complete to 625k. Still no primes, still running on 3 cores (one per k). 

20201010, 08:50  #2162 
Quasi Admin Thing
May 2005
3C6_{16} Posts 
Are you using srbsieve or starting new bases script to start up R400?
It is a lot faster, to start a base, using srbsieve, compared to using the starting new bases script You can find the latest version of srbsieve: here You can find the nescessary .ini files: here And the link in the last post states, reach out, if there is anything unclear. You are an experienced and skilled user, so I reckon that you will have an easy time understanding how to proceed. Must add, that you need to have srsieve in your file folder, aswell as pfgw. 
20201010, 21:13  #2163 
"Curtis"
Feb 2005
Riverside, CA
4786_{10} Posts 
Hi KEP! Thanks for your support and suggestions.
I'm using srbsieve for R400. I'm running the newpgen presieves now, and then will run srbsieve on 1% of the krange to get a sense of how lengthy this project is. I'll report back in a week or so with an unreservation, or a projection of when I think I'll make it to n=2500 checkpoint. 
20201011, 09:49  #2164  
Quasi Admin Thing
May 2005
2·3·7·23 Posts 
Quote:
On a final sidenote, wich you may very well be aware, set the stop at p= value to 1e18 or maximum value (don't recall anymore) such that NewPGen stops once there is no more composite pairs in the sievefile  else you will produce bad results. 

20201014, 05:43  #2165 
May 2007
Kansas; USA
2·5·17·61 Posts 
S354 is complete to n=300K; no primes were found for n=200K300K; 3 k's still remain; base released.

20201015, 07:56  #2166  
"Curtis"
Feb 2005
Riverside, CA
4786_{10} Posts 
Quote:
I expect 100120 days to reach 2500, and less than twice that to reach 10,000. I'll update when I get halfway to 2500. There are about 5000 k's left from the first 1 million; with the conjecture just over 20M, I expect just under 100,000 k's left at n=2500 for the entire base. 

20201015, 08:24  #2167  
May 2007
Kansas; USA
2×5×17×61 Posts 
Quote:
n=250010K is 3 times the nrange of n=12500. A test at half the nrange for n=250010K (n=6250) would take 25 times as long as a test at half the nrange for n=12500 (n=1250) since the nvalue is 5 times as big. Extrapolating: 3 times the nrange x 25 times the testing time = 75 times as long for n=250010K vs. n=12500. Allowing for a reduction in k's remaining on the higher range perhaps cut that by onehalf to twothirds so maybe 2550 times as long. I realize that this is overly simplified but I've found it to be a reasonable predictor of estimating a higher nrange after completing a lower nrange. Perhaps I'm off base since you're going from 20 million k's at the beginning to 100,000 k's remaining at n=2500. But most of those 20 million k's are very quickly eliminated so I feel it's still a valid analysis. My rough guess: If it takes you 4 months to complete to n=2500, with the same amount of resources it will take you (4x30* months= 120 months or) 10 years to complete to n=10K plus or minus a few years. Feel free to stop at n=2500 if you'd like. :) *I chose 30 since it's on the lower end of the 2550 times as long estimate. 

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