20200514, 18:57  #199  
Dec 2008
you know...around...
652_{10} Posts 
Quote:
(Also kinda reminds me of an episode of "Angelo Rules" where Sherwood wanted to go swimming only because he was not allowed to.) Actually I thought it would be less work for me as well as for the mods if I continue for as long as I don't plan to stop until someone else wants to join in instead of having to reserve new ranges every then and again. Prime gaps searches don't seem to be very popular these days. 

20200517, 11:27  #200  
Jun 2003
Oxford, UK
11110001101_{2} Posts 
Quote:
To be fair (and slightly more precise), prime gap search posts on Mersenneforum do not appear to be very popular these days. I'm still looking, and I have almost 1,000 record small gaps to post, but I just don't have time to contribute to discussions at the moment. 

20200524, 14:41  #201  
May 2018
2·107 Posts 
Quote:


20200524, 15:17  #202  
Dec 2008
you know...around...
2^{2}×163 Posts 
Quote:
I use Thomas's code from post # 145 here: https://www.mersenneforum.org/showpo...&postcount=145 

20200628, 21:10  #203 
May 2018
2×107 Posts 
What line do I type in the terminal to run the twin prime gap code? Are there any extra binaries I need to have?

20200629, 08:51  #204  
Dec 2008
you know...around...
2^{2}·163 Posts 
Quote:
Code:
C:\Users> cd.. C:\> cd Program Files\twingaps C:\Program Files\twingaps> twingaps.exe k1 99e14 k2 1e16 mingap 4000 >> output.txt If the program is interrupted, to continue you would have to set the value for k1 to the most recent value in the output file. My fastest PC searches 6.9e7 k's per second per core, and I would normally distribute the work on four cores, with the first interval being k1 99e14 k2 9925e12 and so on. 

20200726, 20:19  #205 
Dec 2008
you know...around...
2^{2}·163 Posts 
I'm releasing most of my reservation and going back to reserving only a finite range.
To keep this project alive, here's the 411: Stats for k < 9.9e15 in the attachment. Reservations: Bobby Jacobs: 9.9e15 to 1e16 firejuggler: 1e16 to 1.05e16 mart_r: 1.05e16 to 1.1e16 
20200809, 19:50  #206 
May 2018
2·107 Posts 
The program does not seem to work on my computer. Therefore, I will withdraw my range.

20200817, 14:29  #207 
Aug 2020
11 Posts 
i took a different aproach to this a few years ago
starting off lookin at 6n+1 and 6n+5 is a nice way to start your prime search. did you know you can expand it???
take your candidate mod 30 and you only have 8 answers that can be prime. 1, 7,11, 13, 17, 19, 23, and 29 next... since there are only 8 places... you can turn the result into binary and then combine two bytes into Hex form (FF) and save your data in a very minimal form. Then, say you want to find pairs of twins (like 11, 13, 17, 19) all you need to is loop thru your data using a logical AND function. Ie Data AND "3C" I have already created such a table containing all primes upto around 1.5 Billion. I am happy to share. 
20200817, 14:45  #208  
Aug 2006
3^{2}×5×7×19 Posts 
Quote:


20200817, 17:06  #209 
Apr 2010
Over the rainbow
2^{2}·641 Posts 
I'll take bobby's range. (in fact I already did start it a few days ago). i'm at ~50 done with it. on my own assignement, I'm at 20% done.

Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Gaps between maximal prime gaps  Bobby Jacobs  Prime Gap Searches  52  20200822 15:20 
I found a sieve to search all pairs of twin primes  Pietro Maiorana  Twin Prime Search  8  20190926 23:07 
find very easy twin prime in the infamy twin primes  hal1se  Miscellaneous Math  13  20181105 16:34 
Mersenne Primes p which are in a set of twin primes is finite?  carpetpool  Miscellaneous Math  3  20170810 13:47 
Gaps of Primes?  PawnProver44  Miscellaneous Math  10  20160410 19:32 