mersenneforum.org Sierp base 16 - team drive #1
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 2008-01-04, 20:00 #1 gd_barnes     May 2007 Kansas; USA 3·7·487 Posts Sierp base 16 - team drive #1 We are starting Conjectures 'R Us (CRUS) team drive #1 for Sierpinski base 16 starting at n=30K and continuing until all k's have a prime. Included in the drive are 15 of the remaining 18 k's that need a prime. A link to a sieved file is below. As we find primes, we will remove candidates from the files. The file has been sieved for n=250K-500K and no more sieving is needed. The sieve depth is P=70T. As we find primes, we'll remove k's from the file for higher n-ranges. We are posting one large file that people can cut individual reservations out of. This should give people more flexibility with their ranges. Please reserve a range that will take no longer than ~4-6 weeks. IMPORTANT: Please reserve in multiples of n=2000 and begin your range with n=xxx001 and end with n=xxx000 to avoid missing or duplicating tests. Please post all primes, reservations, and statuses in this thread instead of using other multiple threads. We'll be checking this thread frequently for primes so that we can quickly get candidates removed from the file that no longer need to be tested. Here is a breakdown of the 18 k's that are remaining: 15 in the team drive for n=200K-500K 1 reserved for base 4 and searched to n>500K 2 reserved for PrimeGrid and searched to n>1M with the Seventeen-or-Bust effort Below are primes found from the team drive plus all individual efforts for Sierp base 16 for n > 25K. Red indicates top-5000 primes. Code: Prime found by 18598*16^484327+1 Lennart 31347*16^411467+1 Lennart 65623*16^397735+1 Lennart 35320*16^360478+1 KEP 48697*16^350218+1 KEP 47395*16^340281+1 KEP 16015*16^239758+1 Mini-Geek 23682*16^232372+1 Mini-Geek 63853*16^195610+1 Mini-Geek 47482*16^138980+1 gd_barnes 58855*16^138074+1 gd_barnes 66505*16^134956+1 gd_barnes 32350*16^128411+1 gd_barnes 19725*16^126275+1 gd_barnes 63405*16^123035+1 mdettweiler 16390*16^102651+1 gd_barnes 13438*16^98815+1 tcadigan 44490*16^97806+1 em99010pepe 34543*16^91225+1 tnerual 39337*16^81875+1 tnerual 50863*16^77567+1 kar_bon 43468*16^75159+1 tnerual 52072*16^64816+1 tnerual 4885*16^60847+1 mdettweiler 21720*16^58990+1 kar_bon 19465*16^51462+1 kar_bon 49860*16^50809+1 kar_bon 7773*16^49946+1 tcadigan 12243*16^49693+1 tcadigan 62802*16^42004+1 geoff 58582*16^40601+1 geoff 17970*16^39540+1 tnerual 14910*16^37966+1 tcadigan 64518*16^36998+1 gd_barnes 10947*16^35687+1 tcadigan 19687*16^32360+1 kar_bon 29445*16^30066+1 kar_bon 59890*16^29827+1 tnerual 38562*16^26408+1 tnerual 24262*16^26165+1 tnerual 19122*16^25621+1 tnerual 32673*16^25481+1 tnerual Status: Code: 390K-500K Lennart/KEP complete 3 310K-390K KEP complete 3 260K-310K MyDogBuster complete 0 220K-260K Mini-Geek complete 2 210K-220K MyDogBuster complete 0 192K-210K Mini-Geek complete 1 172K-192K MyDogBuster complete 0 170K-172K Flatlander complete 0 166K-170K Mini-Geek complete 0 150K-166K MyDogBuster complete 0 146K-150K gd_barnes complete 0 140K-146K mdettweiler complete 0 124K-140K gd_barnes complete 5 122K-124K mdettweiler complete 1 120K-122K gd_barnes complete 0 104K-120K LLRnet complete 0 100K-104K gd_barnes complete 1 98K-100K tnerual complete 0 (1 other) 93.5K-98K em99010pepe complete 1 89K-93.5K kar_bon complete 0 (1 other) 86K-89K tnerual complete 0 83K-86K kar_bon complete 0 80K-83K tnerual complete 1 76K-80K kar_bon complete 1 72K-76K tnerual complete 1 68K-72K kar_bon complete 0 64K-68K tnerual complete 1 62K-64K kar_bon complete 0 60K-62K tnerual complete 0 (1 other) 56K-60K kar_bon complete 1 53K-56K tnerual complete 0 50K-53K kar_bon complete 2 47K-50K tcadigan complete 0 (2 other) 44K-47K kar_bon complete 0 40K-44K geoff complete 2 35K-40K tnerual complete 1 (plus 3 other) 30K-35K kar_bon complete 2 25K-30K tnerual complete 5 All sieved files have been tested. Eventually we will begin sieving a higher n-range. All primes now found will be top-5000 primes so have fun and take down some k's! Gary Last fiddled with by gd_barnes on 2014-06-11 at 08:13 Reason: status update
 2008-01-04, 20:20 #2 kar_bon     Mar 2006 Germany 285010 Posts so i try the first range: 30k to 35k for me
 2008-01-04, 20:27 #3 tnerual     Oct 2006 7·37 Posts 35-40k for me
 2008-01-04, 22:15 #4 geoff     Mar 2003 New Zealand 13·89 Posts I'll take 40k-44k.
2008-01-04, 22:24   #5
tnerual

Oct 2006

7×37 Posts

as i started the team drive a little in advance (range 25k-30k) here is the result file
Attached Files
 sierpbase16from25kto30k.zip (96.4 KB, 150 views)

Last fiddled with by tnerual on 2008-01-04 at 22:25

2008-01-04, 22:41   #6
gd_barnes

May 2007
Kansas; USA

3×7×487 Posts

Quote:
 Originally Posted by geoff I'll take 40k-44k.
Welcome to the effort Geoff!

Quote:
 Originally Posted by tnerual as i started the team drive a little in advance (range 25k-30k) here is the result file
Thanks for sending tnerual.

It looks like we're off to a quick start here! I'm currently sieving Riesel base 16 up to P=600G (currently at P=420G) and we'll start a 2nd team drive for that one sometime around Monday or Tuesday.

Gary

 2008-01-04, 22:48 #7 kar_bon     Mar 2006 Germany 2×3×52×19 Posts first prime 29445*16^30066+1 is prime (36208 digits)
2008-01-04, 23:48   #8
gd_barnes

May 2007
Kansas; USA

3·7·487 Posts

Quote:
 Originally Posted by kar_bon 29445*16^30066+1 is prime (36208 digits)
Excellent...very quick first prime!

I have removed k=29445 from all of the files for LLRing.

For those of you who have already reserved ranges, you can use srfile to remove k=29445 from your file if you want. The candidates were only about 4% of the files so not much additional testing at this low n-range. Alternatively, I decided to add back links to files already reserved that have k=29445 removed. You could use those.

One hint because I got burned on this one time. If you remove candidates from your file, be sure and change the line # that LLR restarts at or else you'll miss testing candidates. At this low n-range, it may not be worth the hassle.

Gary

2008-01-05, 05:47   #9
kar_bon

Mar 2006
Germany

2·3·52·19 Posts
range 30k to 35k complete

so the first range is complete and next prime:
29445*16^30066+1 (reported yet)
19687*16^32360+1 (38970 digits) also prime.

taking 44k-47k
Attached Files
 sierp16_30k-35k.zip (70.1 KB, 150 views)

 2008-01-05, 05:51 #10 mdettweiler A Sunny Moo     Aug 2007 USA (GMT-5) 792 Posts Taking 47K-50K. Last fiddled with by mdettweiler on 2008-01-05 at 05:53 Reason: fixed a typo
2008-01-05, 07:27   #11
gd_barnes

May 2007
Kansas; USA

3·7·487 Posts

Quote:
 Originally Posted by kar_bon so the first range is complete and next prime: 29445*16^30066+1 (reported yet) 19687*16^32360+1 (38970 digits) also prime. taking 44k-47k
Fast machine Karsten! I got 38-45 secs. testing time (vs. your 25-30 secs.) in that range when I LLR'd k=64518. The high k-value shouldn't have made any difference because LLR treats it like k=32259 since it's a multiple of 2, which is around the avg. sized k for this effort.

Quote:
 Originally Posted by Anonymous Taking 47K-50K.

Anon and Karsten, if you think it's worth your trouble, you can use srfile to remove k=19687 from your files before testing. I'll remove it from the remaining file links here shortly.

Now that we've reserved up to 50K with people knocking these out so fast, everyone can feel free to take as many files as their resources reasonably allow.

At this rate, we may have many of the files reserved on this effort before we start the Riesel Base 16 team effort early next week!

Gary

Last fiddled with by gd_barnes on 2008-01-05 at 08:58

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