mersenneforum.org Search Results
 Register FAQ Search Today's Posts Mark Forums Read

 Showing results 1 to 25 of 1000 Search took 0.37 seconds. Search: Posts Made By: axn
 Forum: YAFU 2021-04-21, 17:56 Replies: 37 Views: 969 Posted By axn Are you aware of Border PRPs... Are you aware of Border PRPs (http://www.worldofnumbers.com/borderprp.htm)?
 Forum: Data 2021-04-21, 17:35 Replies: 397 Views: 60,225 Posted By axn Ok, I guess we need to add N/A at the beginning... Ok, I guess we need to add N/A at the beginning to avoid assignment registration attempt, right? (or UsePrimenet=0 / manually report)
 Forum: Lounge 2021-04-21, 17:28 Replies: 1,357 Views: 87,214 Posted By axn TIL! However, the articles you linked used... TIL! However, the articles you linked used "datums" as plural, indicating a different origin/usage. Is that right?
 2021-04-21, 17:19 Replies: 19 Views: 419 Posted By axn Worth pointing out: after computing 3^5^p, the... Worth pointing out: after computing 3^5^p, the remaining p squarings can be protected with GEC. PS:- In theory, even the 3^5^p could be protected by GEC, but it will cost 50% extra -- worth it...
 Forum: Data 2021-04-21, 17:06 Replies: 397 Views: 60,225 Posted By axn 42.6 range P+1 assignments Ok. Take 2. Attached file has about 300 assignments in the 42.60-42.62. First five are: Pplus1=1,2,42600139,-1,400000,0,1,75 Pplus1=1,2,42600221,-1,500000,0,1,75...
 Forum: Data 2021-04-21, 16:58 Replies: 397 Views: 60,225 Posted By axn Oops, didn't see it. Ok, I will whip up something... Oops, didn't see it. Ok, I will whip up something in that range. But the 31.5 is still there if you need.
 Forum: Data 2021-04-21, 16:56 Replies: 397 Views: 60,225 Posted By axn The attached file has 153 assignments in the... The attached file has 153 assignments in the range 31.50-31.52, the first four of which are: Pplus1=1,2,31500281,-1,300000,0,1,75 Pplus1=1,2,31500361,-1,400000,0,1,75...
 2021-04-21, 16:01 Replies: 19 Views: 419 Posted By axn But 9N+1 = 10^p = 5^p*2^p has a lot more zeros... But 9N+1 = 10^p = 5^p*2^p has a lot more zeros than 1s. Honestly, I don't know what is the impact of simple squaring vs squaring*3. Once upon a time, I recall there being low single digit %...
 Forum: Data 2021-04-21, 15:32 Replies: 397 Views: 60,225 Posted By axn Ho many assignments and what range? Since... Ho many assignments and what range? Since this is brand new work type, nothing has been worked as of yet. But all reported results should show up under the exponent's history (in theory). I...
 2021-04-21, 15:04 Replies: 19 Views: 419 Posted By axn Serge, one question. Does LLR use standard PRP... Serge, one question. Does LLR use standard PRP test, 3^(N-1) == 1, or does it do 3^10^p == 3^10?
 Forum: Lounge 2021-04-21, 14:39 Replies: 1,357 Views: 87,214 Posted By axn And you have fallen foul of my pet peeve. While... And you have fallen foul of my pet peeve. While technically "data" is plural and "datum" is singular, modern usage of data is as an uncountable noun, and hence should be "data is ...". No one uses...
 2021-04-21, 08:08 Replies: 19 Views: 419 Posted By axn Cool. BTW, mprime does have the ability to... Cool. BTW, mprime does have the ability to exit when out of work (conveniently called ExitWhenOutOfWork). Not sure if that was done for other platforms as well.
 Forum: Software 2021-04-21, 07:58 Replies: 155 Sticky: Prime95 v30.4/30.5/30.6 Views: 14,804 Posted By axn Great. Thanks for the confirmation. Great. Thanks for the confirmation.
 Forum: Software 2021-04-21, 04:17 Replies: 155 Sticky: Prime95 v30.4/30.5/30.6 Views: 14,804 Posted By axn Is the server set up to handle P+1 result... Is the server set up to handle P+1 result submissions (both "no factor" as well as "factor found")? Is mersenne.ca?
 2021-04-21, 02:26 Replies: 19 Views: 419 Posted By axn How does LLR performance compare with P95/mprime... How does LLR performance compare with P95/mprime on this type? Do you have any data?
 Forum: Software 2021-04-19, 17:17 Replies: 7 Views: 132 Posted By axn I don't think P95 actually stops, but rather does... I don't think P95 actually stops, but rather does the writes on another thread. I might be wrong about this.
 Forum: Miscellaneous Math 2021-04-19, 05:58 Replies: 26 Views: 548 Posted By axn If you don't make ispseudoprime do a BPSW test,... If you don't make ispseudoprime do a BPSW test, the timings are comparable. ? # timer = 1 (on) ? qfbprimeform(9, 2^44497-1); time = 8,043 ms. ? ispseudoprime(2^44497-1, 1); time = 8,645 ms....
 Forum: Miscellaneous Math 2021-04-18, 07:39 Replies: 26 Views: 548 Posted By axn I don't know what "the test" is but: ?... I don't know what "the test" is but: ? kronecker(9, 25) %1 = 1 Do you even know what qfbprimeform is supposed to do? ? ?qfbprimeform qfbprimeform(x,p): returns the prime form of discriminant...
 Forum: Miscellaneous Math 2021-04-18, 07:14 Replies: 26 Views: 548 Posted By axn No. Composite numbers as well. However, it must... No. Composite numbers as well. However, it must be relatively prime. ? kronecker(9,14) %1 = 1 ? kronecker(9,15) %2 = 0 ? kronecker(9,16) %3 = 1 ? kronecker(9,17) %4 = 1
 Forum: Miscellaneous Math 2021-04-18, 06:29 Replies: 26 Views: 548 Posted By axn Your check is 9^((Mp-1)/2) == 1 (mod Mp) or... Your check is 9^((Mp-1)/2) == 1 (mod Mp) or alternately, 9^((Mp+1)/2)==9 (mod Mp). This is nothing but a Euler pseudoprimality test (https://en.wikipedia.org/wiki/Euler_pseudoprime) Since 9 is...
 Forum: PrimeNet 2021-04-16, 14:12 Replies: 9 Views: 308 Posted By axn Yes, the factor of 2 is based on the 2 LL tests... Yes, the factor of 2 is based on the 2 LL tests needed to conclusively prove an exponent is composite. With PRP+CERT, the factor of 2 should become 1.03 (or something similar).
 Forum: Software 2021-04-15, 08:02 Replies: 155 Sticky: Prime95 v30.4/30.5/30.6 Views: 14,804 Posted By axn Why not have just three workers and change their... Why not have just three workers and change their worktype as and when you want to switch over? Should be just as easy as bringing workers up/down. Or ... Have two instances of P95 and keep PRP...
 Forum: Software 2021-04-15, 05:48 Replies: 155 Sticky: Prime95 v30.4/30.5/30.6 Views: 14,804 Posted By axn Then why not have just 3 workers (or 2 workers)?... Then why not have just 3 workers (or 2 workers)? You're putting the program in an impossible situation. It'd be best to just turn off the benchmark altogether.
 Forum: Miscellaneous Math 2021-04-15, 02:21 Replies: 9 Views: 229 Posted By axn This might or might not work. If someone could... This might or might not work. If someone could find a counterexample, that would obviously disprove your claim. Yet, doing test after test of successful confirmation will not get you any closer to...
 Forum: Data 2021-04-15, 02:15 Replies: 17 Views: 538 Posted By axn The advantage is not that we know to include 2p... The advantage is not that we know to include 2p in the stage 1 powering routine, but rather, the part that needs to be smooth ((f-1)/2p) is much smaller and therefore higher probability of success...
 Showing results 1 to 25 of 1000

All times are UTC. The time now is 18:41.

Wed Apr 21 18:41:19 UTC 2021 up 13 days, 13:22, 0 users, load averages: 1.82, 1.59, 1.75