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 Showing results 1 to 25 of 302 Search took 0.04 seconds. Search: Posts Made By: nuggetprime
 Forum: Software 2011-05-16, 18:52 Replies: 16 Views: 2,758 Posted By nuggetprime Bug: segfaults when testing 1525*2^700391-1,... Bug: segfaults when testing 1525*2^700391-1, before starting LL loop. Seems to fail for every large-k/large-n combination. Nugget:smile:
 Forum: No Prime Left Behind 2011-05-12, 18:14 Replies: 688 Views: 49,532 Posted By nuggetprime 1525*2^700391-1 is prime 1525*2^700391-1 is prime
 Forum: No Prime Left Behind 2011-04-01, 17:20 Replies: 688 Views: 49,532 Posted By nuggetprime Guys, I believe I've got something! ... Guys, I believe I've got something! 1817*2^700256-1 is prime! was lucky apparently
 Forum: Conjectures 'R Us 2011-03-30, 14:55 Replies: 3,784 Views: 244,010 Posted By nuggetprime R830 complete to n=25K. 13 k remain. Base... R830 complete to n=25K. 13 k remain. Base released. Primes found and remaining k are attatched.
 Forum: No Prime Left Behind 2011-03-26, 13:42 Replies: 61 Views: 25,245 Posted By nuggetprime I'd like something to test offline for my new... I'd like something to test offline for my new cruncher,1K seems reasonable to start. So I'm taking 700K-701K. Please send me the files to ilikelinustorvalds AT gmail DOT com, in 4 n=250 blocks....
 Forum: GPU Computing 2011-03-19, 14:48 Replies: 359 Views: 38,406 Posted By nuggetprime Have you got a GPU where you can test how much... Have you got a GPU where you can test how much slower it is with 4 instances than with 1? From what I read in the previous posts,speed at the moment is about that of 1-1.5 cores of a cheap quadcore...
 Forum: GPU Computing 2011-03-19, 13:57 Replies: 359 Views: 38,406 Posted By nuggetprime This is a question to msft: Is it possible to... This is a question to msft: Is it possible to implement testing multiple candidates at the same time on one GPU? I think this would greatly improve throughput. Just like on a quad-core CPU you get...
 Forum: Math 2011-03-18, 20:11 Replies: 2 Views: 1,157 Posted By nuggetprime Probability of factor (TF) Hi, Is there a formula / excel spreadsheet anywhere which lets me calculate the probablility that I find a factor for Mn by trial factoring from x to x+1 bits, with no previously known factor? ...
 Forum: Hardware 2011-03-05, 19:07 Replies: 0 Views: 779 Posted By nuggetprime AMD Core unlock, stability? I wonder who here is using an athlon x3 or phenom x2/x3 and has the 3rd/4th core unlocked on it. If you tried this,please tell me if it passed the prime95/mprime stresstest for you or not,so i can...
 Forum: No Prime Left Behind 2011-02-28, 13:40 Replies: 272 Views: 61,897 Posted By nuggetprime k=325 n=1000K-1100K completed. No primes found. k=325 n=1000K-1100K completed. No primes found.
 Forum: Conjectures 'R Us 2011-02-23, 12:46 Replies: 127 Views: 21,315 Posted By nuggetprime Off topic, but why is 6 not the conjectured k for... Off topic, but why is 6 not the conjectured k for R1031 if it has trivial factors?
 Forum: GPU Computing 2011-02-23, 12:43 Replies: 2,832 Views: 235,781 Posted By nuggetprime what gpu do you have? It probably isn't... what gpu do you have? It probably isn't possible to run primality tests on it since it doesn't support double precision(same as mine:smile:). But you can still do sieving/TF on it, things for which...
 Forum: Software 2011-02-23, 12:31 Replies: 24 Views: 1,747 Posted By nuggetprime BUMPed. Also forwarded to Jean Penne. BUMPed. Also forwarded to Jean Penne.
 Forum: No Prime Left Behind 2011-02-18, 19:34 Replies: 570 Views: 99,518 Posted By nuggetprime Sorry,but preinstalled-in-case power supplies are... Sorry,but preinstalled-in-case power supplies are about the lowest grade ones you can get:smile: From personal experience, I would recommend an OCZ StealthXStream model. A 500W one can be had for...
 Forum: Software 2011-02-18, 17:57 Replies: 24 Views: 1,747 Posted By nuggetprime Another problem ./llr-3.8.5 -d -q5*10^19737+3 Starting probable prime test of 5*10^19737+3 ...
 Forum: Software 2011-02-18, 17:51 Replies: 24 Views: 1,747 Posted By nuggetprime Normally,LLR outputs when it can't prove a number... Normally,LLR outputs when it can't prove a number prime: Starting probable prime test of 2^21954+77899 2^21954+77899 is base 3-Strong Fermat PRP! Time : 1.728 sec. Starting Lucas sequence...
 Forum: Software 2011-02-18, 16:33 Replies: 24 Views: 1,747 Posted By nuggetprime Yet another LLR bug I have observed the following in LLR version 3.8.5: When testing 10^500+961, LLR tells me: Starting probable prime test of 10^500+961 10^500+961 is not prime, although base 3-Fermat PSP!! ...
 Forum: Conjectures 'R Us 2011-02-18, 12:30 Replies: 1,673 Views: 116,808 Posted By nuggetprime Primes for S42 Primes from n=25K to n=35K: 9302*42^28384+1 1209*42^28486+1 179*42^29067+1 6530*42^31152+1 7311*42^34544+1 All verfified using pfgw -tc option.
 Forum: No Prime Left Behind 2011-02-18, 12:20 Replies: 570 Views: 99,518 Posted By nuggetprime Just courious,what PSUs is Gary using on his... Just courious,what PSUs is Gary using on his machines? Low-quality power supplies can both go bad fairly soon and damage or reduce lifespan of your mobo/graphics card due to voltage spikes and...
 Forum: Software 2011-02-18, 12:06 Replies: 5 Views: 933 Posted By nuggetprime That's about 8 times slower than on my P4,so Atom... That's about 8 times slower than on my P4,so Atom can't really impress for primality testing. Does anybody know some other low-power system (<20 W) that has better performance for this kind of work?
 Forum: No Prime Left Behind 2011-02-17, 20:45 Replies: 19 Views: 8,732 Posted By nuggetprime Thanks for letting me know,sieving stopped. ... Thanks for letting me know,sieving stopped. Sadly,I can't access the PrimeSearchTeam forum because it's password protected. Nugget
 Forum: No Prime Left Behind 2011-02-17, 20:24 Replies: 19 Views: 8,732 Posted By nuggetprime Reserving 50000-50010 G for the start. Yes,I know... Reserving 50000-50010 G for the start. Yes,I know that's tiny,but I just have a GT 240 to help out and it's not one of the fastest GPUs out there:smile: I hope it's OK that I reserve such a small...
 Forum: Software 2011-02-17, 19:46 Replies: 5 Views: 933 Posted By nuggetprime Gimme Atom timings! Yes,I know Atoms suck somewhat for number crunching stuff,but I'm still interested in timings as I'm planning to extend my crunchforce by something low-power which will run 24/7. I'm not that...
 Forum: Puzzles 2011-02-17, 18:00 Replies: 14 Views: 1,281 Posted By nuggetprime thx had not used exponentation in my... thx had not used exponentation in my calculations. lets see if I cand find something for n=39
 Forum: Conjectures 'R Us 2011-02-17, 15:01 Replies: 3,784 Views: 244,010 Posted By nuggetprime Status update: R830 is at n=17300,15 k... Status update: R830 is at n=17300,15 k remaining. Slow but going. Nugget
 Showing results 1 to 25 of 302

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