20080123, 20:25  #34 
A Sunny Moo
Aug 2007
USA (GMT5)
1100001101001_{2} Posts 
LLRnet reserving 90K100K.

20080123, 20:57  #35  
May 2007
Kansas; USA
2×5,101 Posts 
Quote:
Thanks for changing the status above Anon. Gary Last fiddled with by gd_barnes on 20080123 at 20:58 

20080123, 21:29  #36  
Oct 2006
7×37 Posts 
Quote:
so if you ask for a cache of 5 k/n pair, your processing times will be multiplied by 5 ... i work with a cache of 20 k/n pairs for 5 cores (i have a local LLR proxy server) 

20080123, 21:43  #37  
A Sunny Moo
Aug 2007
USA (GMT5)
3×2,083 Posts 
Quote:
Anyway, I guess, long story short, when dealing with lresults files made out of LLRnet results files, take the runtimes with a grain of salt. 

20080125, 17:21  #38 
May 2007
Kansas; USA
2×5,101 Posts 
Sieving will complete tonight for n=100K200K for all kvalues for the continuation of this team drive.
I'll post files up to ~n=120K on Saturday or early Sunday. Gary Last fiddled with by gd_barnes on 20080125 at 17:23 
20080127, 07:25  #39 
May 2007
Kansas; USA
2·5,101 Posts 
Team drive restarted...files posted...
The Riesel base 16 team drive has restarted. Files have been posted for n=100K140K.
With little interest in individualk reservations, I added 4 k's to the drive this time. This still leaves 6 individual k's, 5 of which are already reserved (3 by me), as a result of them also being base 4 k's and in some cases base 2 oddn or evenn conjecture k's. For k's that are for more than one base, we have to test them for the lowest base else risk doing partial doublework or adding the complexity of testing them at a higher base and then removing either all of the odd n's or even n's when testing the lower base, which would be errorprone. Hence, I will always leave them out of team drives on the higher base as is the case here. Gary Last fiddled with by gd_barnes on 20080127 at 07:26 
20080127, 21:43  #40 
A Sunny Moo
Aug 2007
USA (GMT5)
3·2,083 Posts 
LLRnet has completed 90K93.4K. (It's actually had some results come in farther up, but I'm only submitting up to the minimum outstanding ni.e. there's no holes in this lresults file.) lresults is attached.
Note to Gary: The reason why the higher bound of the completed portion of LLRnet's range is lower than the one you marked is because my earlier rough estimate of nrange was based on the leading edge of LLRnet, not what's been completely done with no holes in between. Last fiddled with by mdettweiler on 20080127 at 21:47 
20080127, 23:13  #41  
May 2007
Kansas; USA
2·5,101 Posts 
Quote:
I changed the testing limit in the first post here. Gary 

20080127, 23:19  #42 
May 2007
Kansas; USA
10202_{10} Posts 
I'll reserve Riesel base 16 n=100K104K here. Sierp base 16 will be done for that range early Monday and I'll start on it after that. If LLRNet finds a prime in the n=93.4K100K range, I'll remove the k from the sieved files.
Gary 
20080128, 08:31  #43 
May 2007
Kansas; USA
23732_{8} Posts 
2 primes; 5 k's knocked out...
Don't try this at home...
2 primes...5 k's on different bases knocked out! Riesel base 4: 16734*4^1568521 is prime 19464*4^1555321 is prime These 2 also take out: Base 16: 16734*16^784261 19464*16^777661 and Base 2 oddn: 8367*2^3137051 I'm still working on Riesel base 4 k=13854; currently at n=162K base 4. Finding one there would probably knock out k's on 3 different bases. Who's your daddy? Gary Last fiddled with by gd_barnes on 20080128 at 08:40 
20080128, 16:33  #44  
May 2007
Kansas; USA
2·5,101 Posts 
Who's NOT your daddy? :( False prime...
Quote:
I had a sneaking suspicion about these primes this morning after I woke up. When other people have had LLR problems with false primes, the primes usually bunched up. In looking at the results file, I saw that these primes were only 25 tests apart so I ran a doublecheck: Original test with 24 composites in between: 19464*2^3110641 is prime! Time : 200.404 sec. 16734*2^3137041 is prime! Time : 200.316 sec. Doublecheck on same computer with no tests in between: 19464*2^3110641 is not prime. LLR Res64: 3A387A638BB025BA Time : 200.069 sec. 16734*2^3137041 is prime! Time : 197.884 sec. Both tests were run on my Dell core duo work laptop, which has generally been very reliable. I do not overclock any of my machines. I then ran a triplecheck on my main desktop, a 3Ghz P4. It confirmed the doublecheck; both the prime and composite residue. So...the bad news: 1. I have to 'put back' k=19464 has having not found a prime on Riesel bases 4 and 16. 2. I have to rerun the entire batch for k=16734 and k=19464 on a different machine to see if I missed any primes. (not bad; ~2 CPU days) 3. I have to rerun the entire batch for n=100K104K for Sierp base 16 on a different machine(s) looking for missing primes. (bad bad; ~1012 CPU days) 4. I will have to unreserve Riesel base 16 n=100K104K; otherwise it will just sit and wait for as much as 2 weeks. It the LLRNet server has hit n=100K before then, it may as well reserve it. The only good news is that k=13854 is still knocked out of 3 bases, which includes k=6927 for Base 2 oddn. I have relegated my work laptop to sieving for now until I can figure out what is up. My 3 Dell duo laptops (1 work; 2 personal) are the fastest sievers that I have so that's not a bad thing for it. The only thing I can figure about this is that my work laptop gets far more use on varied tasks and is carried backandforth between home and work in all kinds of whether (it has been very cold here last 2 weeks; warmer now) 5 days/week so perhaps one of its components has been slightly compromised. I do shut it down in between home and work. My 2 personal machines stay at home 99% of the time so I'm comfortable that they don't have the same issue. I think I jinxed myself when I got a little cocky. Gary 

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