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Old 2008-07-28, 07:43   #1
gd_barnes
 
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Default Sierp base 3 - mini-drive Ia

We have started a mini drive for Sierp base 3. The range is k<50M and n=35K-100K.

There were 154 k's remaining to begin with. The drive found 81 k's with primes so there are now 73 k's remaining for this k-range.

This is a very low-intensity drive. The files are small and you should be able to complete files at the current n-range in 4-7 days. Feel free to grab several if you like. As we find primes, like I did with primes that were previously found, we'll remove k's from files for larger n-ranges. Files up to n=100K are fully sieved to P=175G.

Primes found:
Code:
 prime               found by
23243282*3^99009+1  Flatlander
29548672*3^96142+1  Flatlander
35382962*3^93533+1  Flatlander
48652642*3^92392+1  Flatlander
39809884*3^91905+1  Flatlander
28071866*3^91455+1  Flatlander
26261252*3^91020+1  Flatlander
30440162*3^90938+1  Flatlander
40809266*3^89759+1  Flatlander
 9690724*3^87558+1  Flatlander
44249222*3^85781+1  henryzz
21175348*3^84575+1  em99010pepe
 7111766*3^84512+1  em99010pepe
41118464*3^82674+1  em99010pepe
 8090242*3^81633+1  em99010pepe
47214478*3^80452+1  em99010pepe
36173524*3^78327+1  em99010pepe
16693364*3^77129+1  em99010pepe
39834376*3^76224+1  nuggetprime
25207316*3^76109+1  nuggetprime
29450654*3^76010+1  nuggetprime
26393956*3^75239+1  nuggetprime
42497116*3^75136+1  nuggetprime
46490116*3^74892+1  nuggetprime
 9240646*3^74356+1  nuggetprime
29348458*3^71822+1  michaf
 9483244*3^65267+1  michaf
11242904*3^64614+1  michaf
42216418*3^64227+1  michaf
10224166*3^59777+1  em99010pepe
14994106*3^57376+1  em99010pepe
 3938414*3^56779+1  em99010pepe
34960988*3^56350+1  em99010pepe
20856328*3^56338+1  em99010pepe
46511144*3^56138+1  em99010pepe
28964426*3^52608+1  em99010pepe
24925372*3^51893+1  em99010pepe
40316644*3^51786+1  em99010pepe
 6859514*3^51502+1  em99010pepe
48886226*3^51212+1  em99010pepe
11785058*3^50252+1  em99010pepe
 6123394*3^49821+1  em99010pepe
24763868*3^49675+1  em99010pepe
41443828*3^49528+1  em99010pepe
35164256*3^47916+1  em99010pepe
48563402*3^47888+1  em99010pepe
15895156*3^47532+1  em99010pepe
12087826*3^47344+1  em99010pepe
48501008*3^46896+1  em99010pepe
 5574644*3^46587+1  em99010pepe
 8828234*3^46265+1  em99010pepe
15396762*3^46233+1  em99010pepe
24725744*3^46211+1  em99010pepe
10504636*3^46184+1  em99010pepe
38804354*3^45875+1  em99010pepe
37160146*3^45496+1  em99010pepe
37158138*3^45035+1  em99010pepe
30237632*3^44437+1  em99010pepe
19947516*3^44420+1  em99010pepe
40677134*3^43415+1  em99010pepe
29772794*3^43415+1  em99010pepe
23862908*3^42999+1  em99010pepe
14892316*3^42972+1  em99010pepe
12203572*3^42792+1  em99010pepe
19450274*3^41878+1  Lennart
20258534*3^41706+1  Lennart
27704962*3^41561+1  Lennart
25095394*3^41459+1  Lennart
16939082*3^40745+1  Lennart
23727272*3^40665+1  Lennart
47807146*3^39904+1  Lennart
30032708*3^39872+1  Lennart
20436272*3^38146+1  CedricVonck
30494864*3^37165+1  Mini-Geek
26804972*3^36314+1  henryzz
14454556*3^36283+1  henryzz
11658664*3^35879+1  CedricVonck
32565374*3^35794+1  CedricVonck
28675334*3^35458+1  CedricVonck
38353046*3^35109+1  CedricVonck
12562406*3^35092+1  CedricVonck
Reservations:
Code:
range          tested by       status        # primes
86K-100K       Flatlander      complete       10
85K-86K        henryzz         complete        1
77K-85K        em99010pepe     complete        7
73K-77K        nuggetprime     complete        7
67K-73K        michaf          complete        1
66K-67K        nuggetprime     complete        0
64K-66K        michaf          complete        3
63K-64K        mdettweiler     complete        0
62K-63K        michaf          complete        0
42K-62K        em99010pepe     complete       35
39K-42K        Lennart         complete        8
38K-39K        CedricVonck     complete        1
37K-38K        Mini-Geek       complete        1
36K-37K        henryzz         complete        2
35K-36K        CedricVonck     complete        5
The drive is now complete. Thanks to all who helped!

Have fun and knock out a bunch of k's!


Gary

Last fiddled with by gd_barnes on 2009-09-30 at 18:47 Reason: update status
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Old 2008-07-28, 12:59   #2
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reserving : 35K-36K
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Old 2008-07-28, 13:08   #3
henryzz
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reserving : 36K-37K
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Old 2008-07-28, 15:51   #4
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Two primes found:

12562406 35092
38353046 35109

Do I have to remove these k's (12562406 & 38353046 )from imy nput file?
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Old 2008-07-28, 16:06   #5
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Taking 37K-38K. Removing the two k's that Cedric found primes for.
This is mainly to balance the amount of work on my NPLB 530.0-530.6 range between my cores. For some reason, 530.3-530.6 has way more pairs to test that 530.0-530.3 did, and I'd like to find a few small primes anyway.
Edit: If I find a PRP with this, should I just report it here as a PRP or check it first? Either way, how do I check it for 100% certain primality instead of just PRP?

Last fiddled with by Mini-Geek on 2008-07-28 at 16:24
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Old 2008-07-28, 17:01   #6
henryzz
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Quote:
Originally Posted by Mini-Geek View Post
Taking 37K-38K. Removing the two k's that Cedric found primes for.
This is mainly to balance the amount of work on my NPLB 530.0-530.6 range between my cores. For some reason, 530.3-530.6 has way more pairs to test that 530.0-530.3 did, and I'd like to find a few small primes anyway.
Edit: If I find a PRP with this, should I just report it here as a PRP or check it first? Either way, how do I check it for 100% certain primality instead of just PRP?
u can use pfgw to prove them prime
the options -t -tp and -tc all prove primality
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Old 2008-07-28, 21:11   #7
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Quote:
Originally Posted by CedricVonck View Post
Two primes found:

12562406 35092
38353046 35109

Do I have to remove these k's (12562406 & 38353046 )from imy nput file?
Yes, remove them (though if it's too much of a hassle, don't worry about it). Just a little warning, though: after you've removed the k's from the input file, make sure you adjust the current line being processed as stored in llr.ini--otherwise, you'll end up skipping a whole chunk of the file.
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Old 2008-07-28, 21:31   #8
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Quote:
Originally Posted by henryzz View Post
u can use pfgw to prove them prime
the options -t -tp and -tc all prove primality

You would use the -t option for +1 tests. -tp is for -1 tests.

-tc tests both but is generally used for random forms (i.e. k*b^n+7) and would take an unnecessary amount of time for +1 or -1 tests.


Gary
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Old 2008-07-28, 21:34   #9
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Quote:
Originally Posted by CedricVonck View Post
Two primes found:

12562406 35092
38353046 35109

Do I have to remove these k's (12562406 & 38353046 )from imy nput file?

At this low n-range with so many k's remaining, I wouldn't even mess with removing them from your current file. Removing 2 out of 154 k's will only save you about 2 / 154 = 1.3% CPU time.

I'll get them removed from the n>38K files later today.


Gary

Last fiddled with by gd_barnes on 2008-07-28 at 21:42
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Old 2008-07-28, 21:41   #10
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30494864*3^37165+1 is prime! (from PFGW, so this is verified)

Removing from my file...

I used -t. It only took 10 seconds longer than it took to PRP it (~41 vs ~31).

Edit: Is there any existing tool to more easily remove a k from an LLR-formatted file? I'm not worried about the line number, as I could manually clear out the ones I've finished and restart it on line 1, but the new line number you need to run on would be nice too.

Last fiddled with by Mini-Geek on 2008-07-28 at 21:44
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Old 2008-07-28, 23:13   #11
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Quote:
Originally Posted by Mini-Geek View Post
Edit: Is there any existing tool to more easily remove a k from an LLR-formatted file? I'm not worried about the line number, as I could manually clear out the ones I've finished and restart it on line 1, but the new line number you need to run on would be nice too.
Never mind, I noticed that srfile can do this and found the command. (I can't still edit the above post.)
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