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 Showing results 1 to 25 of 1000 Search took 0.30 seconds. Search: Posts Made By: paulunderwood
 Forum: PrimeNet 2021-01-15, 11:44 Replies: 6 Views: 172 Posted By paulunderwood LL first tests are double checked. However PRP... LL first tests are double checked. However PRP tests are preferable; Not only is there Gerbicz error checking, a certificate is produced which means only one test is performed -- unless it is PRP...
 2021-01-14, 08:21 Replies: 241 Sticky: Carol / Kynea Primes Views: 32,150 Posted By paulunderwood Congrats on a top5000 prime (which requires... Congrats on a top5000 prime (which requires generic modular reduction).
 2021-01-14, 01:21 Replies: 2 Views: 145 Posted By paulunderwood it's back! :smile: it's back! :smile:
 Forum: Viliam Furik 2021-01-13, 01:04 Replies: 17 Views: 298 Posted By paulunderwood I have never noticed much speed difference when... I have never noticed much speed difference when using GWNUM programs under different operating systems. There is a few percent to gain in throughput by running two instances of gpuOwl.
 Forum: Miscellaneous Math 2021-01-05, 00:31 Replies: 9 Views: 202 Posted By paulunderwood Counting the number of all solutions (including... Counting the number of all solutions (including powers of 2) for p=11, 23, 29 seems to indicate that this count is equal to p^{#factors}.
 Forum: Miscellaneous Math 2021-01-04, 22:53 Replies: 9 Views: 202 Posted By paulunderwood crazy Mersenne test If there exists a non-power of 2, k, such that Mod(k,n)^p==1 then n, a Mersenne number, is composite. E.g. n p=11, k=39; n p=23, k=156171. Is there any quick way to identify a k for a particular...
 2021-01-03, 08:23 Replies: 36 Sticky: Primo reservation thread Views: 10,733 Posted By paulunderwood Hmm, I have just created a second Primo folder... Hmm, I have just created a second Primo folder and am running M-cofactor at niceness 19. I have 128 threads after all. But you seem to be right about top -- I'll monitor the situation for a week or...
 2021-01-03, 07:33 Replies: 36 Sticky: Primo reservation thread Views: 10,733 Posted By paulunderwood It would be a nice feature if Primo showed % done... It would be a nice feature if Primo showed % done and an ETA. Have you experimented with running more than one instance of Primo, maybe at different priorities? There are a lot of free cycles...
 Forum: Riesel Prime Search 2021-01-01, 23:40 Replies: 5 Views: 229 Posted By paulunderwood It is in progress of being verified according to... It is in progress of being verified according to the status page. Most likely it will appear when the search page is used.
 Forum: Lounge 2021-01-01, 00:00 Replies: 46 Views: 3,245 Posted By paulunderwood HNY! May the primes keep being discovered and the... HNY! May the primes keep being discovered and the PRPs be proved. Most of all let there be a new Mersenne prime in 2021
 Forum: Science & Technology 2020-12-31, 18:19 Replies: 49 Sticky: Poll: COVID vaccination wavefront Views: 1,567 Posted By paulunderwood The c:censored:k ups have begun. Despite the... The c:censored:k ups have begun. Despite the tested and recommended dose interval of three weeks by the manufacturer between jabs, the uk tory government playing pseufo-scientists know better and...
 Forum: y-cruncher 2020-12-29, 01:43 Replies: 14 Views: 1,116 Posted By paulunderwood I suggest you email the author -- it is his... I suggest you email the author -- it is his software after all. :smile:
 Forum: Hardware 2020-12-29, 01:03 Replies: 284 Views: 33,599 Posted By paulunderwood Asus R7 defaults: 2020-12-29 00:57:04 GpuOwl... Asus R7 defaults: 2020-12-29 00:57:04 GpuOwl VERSION v7.2-16-g1a50f11-dirty 2020-12-29 00:57:04 GpuOwl VERSION v7.2-16-g1a50f11-dirty 2020-12-29 00:57:04 Note: not found 'config.txt' 2020-12-29...
 2020-12-25, 02:11 Replies: 36 Sticky: Primo reservation thread Views: 10,733 Posted By paulunderwood I am 5.5 months into certifying R49081. Expect... I am 5.5 months into certifying R49081. Expect the result in August or September 2021 assuming all goes well. :xmastree:
 Forum: Science & Technology 2020-12-23, 08:39 Replies: 49 Sticky: Poll: COVID vaccination wavefront Views: 1,567 Posted By paulunderwood Despite the big fanfare photo-opertunity media... Despite the big fanfare photo-opertunity media frenzy at the time of the first jab, only 500,000 people n the UK have had a first jab. This has taken weeks. Only 100 times as many more of the...
 Forum: ONeil 2020-12-20, 19:31 Replies: 49 Views: 1,500 Posted By paulunderwood The chance your exponent will yield non- prime is... The chance your exponent will yield non- prime is non-zero. Good luck. But don't get your hopes up. I presume the M-R test you did was base 2? Again it very foolish to run LL. The chance of a...
 Forum: ONeil 2020-12-20, 19:00 Replies: 49 Views: 1,500 Posted By paulunderwood Why are you not running PRP instead of LL? LL... Why are you not running PRP instead of LL? LL entails twice the work for the server/community. (Everyone) for goodness sake run certifiiable PRP! Ps, looking forward to certifiable mLucas.
 Forum: GPU Computing 2020-12-19, 20:20 Replies: 27 Views: 805 Posted By paulunderwood I use Kali on my second hand EeePC which is 32... I use Kali on my second hand EeePC which is 32 bit, 1 GB RAM, 16 GB solid state drives. I like it although I have yet to use its features. It is a rolling release.
 Forum: GPU Computing 2020-12-19, 13:08 Replies: 27 Views: 805 Posted By paulunderwood I was talking about installing Gentoo from... I was talking about installing Gentoo from scratch! There is now a nice tool (https://wiki.gentoo.org/wiki/Installer) that walks beginners through the engaging installation process.
 Forum: GPU Computing 2020-12-19, 11:06 Replies: 27 Views: 805 Posted By paulunderwood Ah the easiness of the Gentoo installer :smile: ... Ah the easiness of the Gentoo installer :smile: My flavour of the month is Fedora -- worth a try.
 Forum: GpuOwl 2020-12-08, 06:11 Replies: 19 Views: 2,614 Posted By paulunderwood Debian/Ubuntu/Centos/Fedora Debian has a problem with ROCm's latest drivers -- requires and uninstallable version of python. Ubuntu was a disaster for me. OS slowed down after a few days then ROCm upgrade screwed the system,...
 Forum: Riesel Prime Search 2020-12-07, 07:23 Replies: 68 Views: 17,647 Posted By paulunderwood It looks like there is a conjunction with a... It looks like there is a conjunction with a second 69 prime (https://primes.utm.edu/primes/page.php?id=131439) :whistle:
 Forum: Riesel Prime Search 2020-12-01, 17:46 Replies: 229 Views: 34,134 Posted By paulunderwood "P587124" Congrats to a1call for this top5000 prime (https://primes.utm.edu/primes/page.php?id=131431) of a most unusual construction. :banana:
 Forum: Linux 2020-11-29, 16:13 Replies: 2 Views: 405 Posted By paulunderwood What flavour of Linux are you using? You probably... What flavour of Linux are you using? You probably need with prepend with sudo when you need higher priveledges or to run some some stuff as root by switching to it with the su command. HTH.
 Forum: Hardware 2020-11-29, 15:59 Replies: 12 Views: 1,416 Posted By paulunderwood I ordered another Longan Nano, this time making... I ordered another Longan Nano, this time making sure it came with the screen and case! I spent many hours trying to get something to work -- so I can run my aribitrary arithmetic development...
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