20100324, 10:56  #1 
May 2007
Kansas; USA
3^{4}×5^{3} Posts 
Recommended bases and efforts
Here are some recommended bases for testing. There are links to the applicable sieve files on the reservations web pages.
*  sieve file available s  sieving in progress (R=Riesel) (S=Sierp) Bases with 6, 7, or 8 k's remaining currently at n<200K; (approximate test time is 2 months on a modern quad): Code:
# of suggested base k's search reservation status date R653* 6 n=100K200K BOINC 2020/05/12 R748 8 n=100K200K R752 8 n=100K200K R766 6 n=100K200K R767 7 n=100K200K R770 6 n=100K200K R830 6 n=100K200K R894 7 n=100K200K R926 7 n=100K200K R994 6 n=100K200K R1009 7 n=100K200K S342 7 n=100K200K S360 8 n=100K200K S446 7 n=100K200K S452 8 n=100K200K S488 7 n=100K200K S577 6 n=128K200K Dylan14 2020/02/05 S837* 6 n=100K200K BOINC 2020/05/01 S904* 8 n=100K200K BOINC 2020/05/12 S961 7 n=100K200K S988 8 n=100K200K S994 7 n=100K200K Code:
suggested base search reservation status date R320 n=200K300K R337 n=200K300K R394 n=200K300K R409 n=200K300K R534 n=200K300K R588 n=200K300K R602 n=200K300K R643 n=250K300K R667 n=250K300K R694 n=200K300K R696 n=200K300K R803 n=200K300K R887 n=200K300K R1003 n=200K300K S365 n=200K300K S376 n=250K300K S394 n=200K300K S444 n=250K300K S447 n=250K300K S472* n=200K300K gd_b & MyDog 2020/05/25 S530* n=200K300K BOINC 2020/05/24 S542 n=200K300K S620 n=200K300K S684 n=200K300K S753 n=200K300K S766 n=200K300K S774 n=200K300K S883* n=200K300K BOINC 2020/05/12 Code:
# of suggested base k's search reservation status date R107 19 n=100K150K R320 2 n=200K300K R653* 6 n=100K200K BOINC 2020/05/12 R767 7 n=100K200K R887 2 n=200K300K S342 7 n=100K200K S354 3 n=200K300K S368 3 n=200K300K S394 2 n=200K300K S488 7 n=100K200K S530* 2 n=200K300K BOINC 2020/05/24 S542 2 n=200K300K www.noprimeleftbehind.net/crus/vstats_new/crusunproven.htm You can post reservations and statuses in this thread but after they are done, they will be moved to their applicable threads. Last fiddled with by gd_barnes on 20200526 at 20:37 Reason: update status 
20100325, 02:56  #2  
May 2007
Kansas; USA
3^{4}×5^{3} Posts 
Quote:
I don't know if it will help you now but attached is a file of the 176 k's remaining at n=2500 for R96. I am now showing the # of k's remaining for each of the new bases in the 1st post at n=2500 with the exception of R108, R192, and S192 that I'm not quite done with yet. I'll attach them to the 1st post as I finish them. Gary Last fiddled with by gd_barnes on 20100325 at 02:57 

20100325, 03:03  #3  
A Sunny Moo
Aug 2007
USA (GMT5)
6249_{10} Posts 
Quote:


20100325, 03:38  #4  
May 2007
Kansas; USA
3^{4}·5^{3} Posts 
Quote:
1. Add an additional file to the zip on my machine. 2. Edit the post to delete the previous attachment and add the new one. Last fiddled with by gd_barnes on 20100325 at 03:39 

20100325, 03:52  #5 
A Sunny Moo
Aug 2007
USA (GMT5)
3×2,083 Posts 
Well, I guess what I was thinking is if the zip file was on the largish side it would be a pain to have to upload it again each time...though I do suppose the forum's attachment size limit keeps that in check somewhat.

20100325, 03:59  #6  
May 2007
Kansas; USA
3^{4}×5^{3} Posts 
Quote:
I'll keep that in mind for future reference since it would be slightly easier for the person who needs the info. to have them in separate files and it shouldn't be any more hassle to do it that way. Thanks for the tip. 

20100505, 20:45  #7  
A Sunny Moo
Aug 2007
USA (GMT5)
3×2,083 Posts 
Quote:
Quote:
S72  2 k's remaining at 40K S133  3 k's remaining at 40K S140  2 k's remaining at 25K S157  3 k's remaining at 25K S187  2 k's remaining at 25K S217  3 k's remaining at 25K R103  3 k's remaining at 40K R158  3 k's remaining at 25K R191  2 k's remaining at 50K R213  2 k's remaining at 25K R218  2 k's remaining at 25K R236  2 k's remaining at 25K Heck, if my quad can burn through those 1kremaining bases so fast (for some reason I was initially thinking that they'd take longernot sure why), maybe I should just go for some of those instead. Tell you whatI'll reserve R181, R182, S140, and S187 to start with, if you don't mind sieving all that. (Note that they wouldn't have to be done all at once; I imagine even one core of your i7 sieving would be enough to keep up with my quad doing PRP if you do them one at a time and send them to me as they're ready.) That should clean up all remaining unreserved bases <200 with one k remaining at 50K, and then all unreserved Sierp. bases < 250 with 2 k's remaining at 25K. Note that in all cases, I'd be stopping at n=100K: that means 50K100K for R181 and R182, and 25K100K for S140 and S187. Last fiddled with by gd_barnes on 20100904 at 04:33 Reason: update status 

20100506, 02:25  #8  
May 2007
Kansas; USA
3^{4}×5^{3} Posts 
Quote:
Thanks for the list. That might be a good list for others to work from also. Concentrating on bases <= 250 is good because all bases <= 250 with CK <= 10K have been or are currently being searched to n=25K. So it's virtually set in stone that there will be no more bases <= 250 with 1 or 2 k's remaining barring some miracle unknown superheavyweight base with CK > 10K that manages to prime all of its k's except 1 or 2. That seems virtually impossible. BTW, I'll make a SWAG estimate at about 12 CPU weeks avg. on these for each k for n=50K100K. So a quad could likely blow through them in 24 days each (for n=50K100K on the 1k bases; add about 20% for each k for n=25K100K). I think the 2 k's that I did for S218 for n=50K100K took about 8 and 9 CPU days respectively. I ran them on one core each. Gary Last fiddled with by gd_barnes on 20100506 at 19:36 

20100506, 19:24  #9 
May 2007
Kansas; USA
3^{4}·5^{3} Posts 
Max,
For consistency, I added all 2k & 3k bases <= 250 that are at n<=100K. If you are going to search some 2k & 3k bases that are at 25K to 100K, then we may as well have a list of all of them that are at n<=100K. All of the others were either at 40K or 50K. I also corrected your S133 from 25K to 40K, which prompted the additions. The one that is "most behind" where it should be vs. its neighbors with a similar # of k's remaining is the 2 k's on S72, which are at n=40K. BTW, all of the 1k & 2k bases that you've reserved are already recommended in this thread. These types of bases are the ones that it would be nice to have pushed higher. Gary Last fiddled with by gd_barnes on 20100506 at 19:35 
20100516, 02:50  #10 
May 2007
Kansas; USA
3^{4}·5^{3} Posts 
I received a sieve file from Mathew for S49 sieved to P=500G. It is now posted on the web pages.
Last fiddled with by gd_barnes on 20100516 at 05:41 
20100520, 23:42  #11 
May 2007
Kansas; USA
10011110001101_{2} Posts 
Great! Completion of this and a few other reservations will complete all bases on both sides <=200 with CK<20K to n=25K. I think that will be a significant milestone. Many bases with CK=10K20K have been a large amount of work to get to n=25K. To all, I've added a link to our 1st post in this thread to the posting that contains all bases <= 250 that have either 2 or 3 k's remaining at n<=50K. See it directly below all of the recommended bases. Max originated the post and we are working together to keep it updated. With all 1k bases <= 200 now nearly complete to n=100K, that will be a good place to look for work. Perhaps we'll end up with a few more 1k (or proven) bases. :) Another place to look would be in the 1k thread to extend all of those bases 200250 to n=100K. Gary 
Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Cunningham ECM efforts  pinhodecarlos  Cunningham Tables  7  20171221 13:29 
Doublecheck efforts; S66/S79 to start with  gd_barnes  Conjectures 'R Us  16  20140807 02:11 
ECM efforts mistake?  10metreh  mersennewiki  1  20081228 13:31 
Recommended TF bit levels for M(>10^8)  NBtarheel_33  Math  19  20081103 17:19 
ECM Efforts  R.D. Silverman  Factoring  63  20050624 13:41 