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robert44444uk 2021-11-07 10:29

[QUOTE=MJansen;592354]Congrats, indeed a nice one! Have you moved to GPU coding or just to a Unix variant under WSL2? You seem to find more and more gaps over 40.000 these last days?

Kind regards
Michiel[/QUOTE]

Hi Michiel

I'm using Seth's code under Ubuntu. My preponderance of 40k gaps is because that is where I am looking at the moment. I'm also looking at very large gaps, but at the moment these can't be uploaded because of the size of primorial is too big for the record upload site, and I don't have permissions to override that. Biggest of these gaps is about 20th at present, but I'm still seeking one prime endpoint.

MJansen 2021-11-07 22:55

[QUOTE=robert44444uk;592655]Hi Michiel

I'm using Seth's code under Ubuntu. My preponderance of 40k gaps is because that is where I am looking at the moment. I'm also looking at very large gaps, but at the moment these can't be uploaded because of the size of primorial is too big for the record upload site, and I don't have permissions to override that. Biggest of these gaps is about 20th at present, but I'm still seeking one prime endpoint.[/QUOTE]

Good luck with the big one! I am also having a go at one and am currently around 24th position and two end points to be found ;-)

Kind regards
Michiel

robert44444uk 2021-11-10 09:03

[QUOTE=MJansen;592677]Good luck with the big one! I am also having a go at one and am currently around 24th position and two end points to be found ;-)

Kind regards
Michiel[/QUOTE]

Well - my candidate did not last long after our exchange of messages. Still good enough for 18th largest gap tough. Here are the gaps I found during the breakaway from my regular searching. None of these can be uploaded at present because the start prime is too large for the system to cope.


[CODE]
825696 6.210388 19 * 133337#/46410 - 298574 to +527122
527398 3.966758 29 * 133337#/46410 - 290122 to +237276
1951372 14.676921 59 * 133337#/46410 - 715174 to +1236198
1072440 8.066179 9983 * 133337#/46410 - 586294 to +486146
1124428 8.457199 23 * 133337#/46410 - 268486 to +855942
2741794 13.743401 19 * 199967#/46410 - 1245102 to +1496692
1654170 8.291605 41 * 199967#/46410 - 1129708 to +524462

[/CODE]

MJansen 2021-11-10 21:52

[QUOTE=robert44444uk;592845]Well - my candidate did not last long after our exchange of messages. Still good enough for 18th largest gap tough. Here are the gaps I found during the breakaway from my regular searching. None of these can be uploaded at present because the start prime is too large for the system to cope.


[CODE]
825696 6.210388 19 * 133337#/46410 - 298574 to +527122
527398 3.966758 29 * 133337#/46410 - 290122 to +237276
1951372 14.676921 59 * 133337#/46410 - 715174 to +1236198
1072440 8.066179 9983 * 133337#/46410 - 586294 to +486146
1124428 8.457199 23 * 133337#/46410 - 268486 to +855942
2741794 13.743401 19 * 199967#/46410 - 1245102 to +1496692
1654170 8.291605 41 * 199967#/46410 - 1129708 to +524462

[/CODE][/QUOTE]

Congrats!

Too bad your search was not prolonged! My search is still running, and as I post this, my search just passed the 3.000.000 mark for gap size with the minus side found (-1.388.228) and total merit in the low 13's at this gap size of 3.000.000. So 16th largest gap as of yet. And this after one week of PRP'ing. I do not expect this one to make the record. Maybe I'll start a bigger search soon, not decided yet.

Kind regards
Michiel

MJansen 2021-11-11 17:38

And the search has stopped, 12th gap overall in size:

30007411*224737#/30030-1388228
30007411*224737#/30030+1745908

Gap = 3.134.136 with merit = 13.976122
The startvalue of the gap has 97391 digits

Sieving took 16 hours over two days (single core) and PRP-ing took 9 days with 4 threads.

@Seth: after entering this gap a [url]https://primegaps.cloudygo.com/[/url] I get the message:
gapstart=30007411*224737#/30030-1388228 is to large at this time

Kind regards
Michiel

robert44444uk 2021-11-15 09:06

[QUOTE=MJansen;592951]And the search has stopped, 12th gap overall in size:

30007411*224737#/30030-1388228
30007411*224737#/30030+1745908

Gap = 3.134.136 with merit = 13.976122
The startvalue of the gap has 97391 digits

Sieving took 16 hours over two days (single core) and PRP-ing took 9 days with 4 threads.

@Seth: after entering this gap a [url]https://primegaps.cloudygo.com/[/url] I get the message:
gapstart=30007411*224737#/30030-1388228 is to large at this time

Kind regards
Michiel[/QUOTE]

Congrats on the gap - a goodly sized merit as well.

I had already reported the "gap too large" message and informed Seth. This led to his recent poll where he asked 4 questions, one of which related to very large gaps produced by members of this group.


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