20190515, 14:56  #45 
Apr 2010
Over the rainbow
2540_{10} Posts 
So, we are looking at gap >3103?
Last fiddled with by firejuggler on 20190515 at 15:31 
20190515, 16:01  #46 
Jun 2003
Oxford, UK
3614_{8} Posts 

20190515, 16:18  #47 
Apr 2010
Over the rainbow
4754_{8} Posts 
So, how can I help? currently looking at above 1.5e16,
Since we have found everything upto 3103, the only interesting things are above, right? like Code:
3169 15000007142666023 Last fiddled with by firejuggler on 20190515 at 16:21 
20190515, 16:48  #48  
Jun 2003
Oxford, UK
2^{2}×3×7×23 Posts 
Quote:
Fischer already found 3169 148261013820413 The best way to approach this is to just run with Thomas11's suite and start at 9e15  your results over a large range will then feed into the broader picture when I eventually catch up. If you want to start at 1.5e16 that's fine, but just post everything > 3103 once you get to, say 1.55e16 or 1.6e16. Last fiddled with by robert44444uk on 20190515 at 16:48 

20190515, 16:56  #49 
Apr 2010
Over the rainbow
2^{2}×5×127 Posts 
I just wanted to be sure I understood what I should do. I will start at 9e15 and go to 9.05e15 to see the scale/ lenght of the project
edit: are we missing 3016? Last fiddled with by firejuggler on 20190515 at 17:13 
20190515, 19:03  #50 
Jun 2003
Oxford, UK
2^{2}·3·7·23 Posts 

20190516, 07:55  #51  
Feb 2003
774_{16} Posts 
Quote:
Quote:
Fischer ran his search up to "1.28e15" in "real" numbers. When Rudy235 started this thread, he was looking at numbers of the form 6*k+1. The script/NewPGen combo also uses this form. Thus, Fischer's limit of 1.28e15 translates to 2.1333e14 in terms of k. The same holds for the gap lengths: Our gaps are 1/6th of Fischer's gaps. So, in order to continue from Fischer's upper bound we need to start from k=2.1333e14. Last fiddled with by Thomas11 on 20190516 at 07:56 

20190516, 08:42  #52 
Feb 2003
2^{2}×3^{2}×53 Posts 
To give you some idea for planning your work (ranges):
The Perl/NewPGen combo is able to crunch a range of about 1e11 (in terms of k) per hour on a single cpu core. A range like Fischer's 1.28e15 (=6*2.1333e14) would take about 90 (single core) cpu days. Extending Fischer's range up to 2.0e15 (=6*3.3333e14) would take 50 cpu days. 
20190516, 08:58  #53 
Apr 2010
Over the rainbow
2^{2}×5×127 Posts 
Then I searched 6 time higher than I intended.if I should search at k= 15e6 for real 9e15 and beyond, right?

20190516, 09:03  #54 
Jun 2003
Oxford, UK
78C_{16} Posts 
Sorry  my bad. Thomas11 is right about the situation. In his run_new.bat file, you need to set kmin at 9000000 and kmax at say 9500000
I have 14 cores working on this starting at kmin 2333333 up to 8000000 Last fiddled with by robert44444uk on 20190516 at 10:39 
20190516, 09:20  #55 
Jun 2003
Oxford, UK
2^{2}·3·7·23 Posts 
The best merits to date are all Fischer's
Code:
4205 191569830235030 Fischer 27.70057197 3893 123819102042695 Fischer 26.30315806 3758 75135208923870 Fischer 26.14839171 3882 132146379263218 Fischer 26.12940501 3931 192276915343362 Fischer 25.89008676 3655 58995174450558 Fischer 25.80021286 3897 186964141272992 Fischer 25.70768054 3703 90551918956495 Fischer 25.48301549 3713 101014339594590 Fischer 25.38793801 3733 124779667215570 Fischer 25.21073307 Last fiddled with by robert44444uk on 20190516 at 09:24 
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