mersenneforum.org  

Go Back   mersenneforum.org > Search Forums

Showing results 1 to 25 of 1000
Search took 0.25 seconds.
Search: Posts Made By: paulunderwood
Forum: PrimeNet 2021-01-15, 11:44
Replies: 6
Views: 160
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...
Forum: And now for something completely different 2021-01-14, 08:21
Replies: 241
Views: 32,108
Posted By paulunderwood
Congrats on a top5000 prime (which requires...

Congrats on a top5000 prime (which requires generic modular reduction).
Forum: And now for something completely different 2021-01-14, 01:21
Replies: 2
Views: 140
Posted By paulunderwood
it's back! :smile:

it's back! :smile:
Forum: Viliam Furik 2021-01-13, 01:04
Replies: 17
Views: 292
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...
Forum: And now for something completely different 2021-01-03, 08:23
Replies: 36
Views: 10,704
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...
Forum: And now for something completely different 2021-01-03, 07:33
Replies: 36
Views: 10,704
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: 224
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: 3,234
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
Views: 1,563
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: 1,109
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: 33,573
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...
Forum: And now for something completely different 2020-12-25, 02:11
Replies: 36
Views: 10,704
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
Views: 1,563
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: 802
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: 802
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: 802
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: 2,611
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: 17,612
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: 34,105
Posted By paulunderwood
Thumbs up "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: 1,408
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...
Showing results 1 to 25 of 1000

 
All times are UTC. The time now is 20:52.

Fri Jan 15 20:52:17 UTC 2021 up 43 days, 17:03, 0 users, load averages: 2.49, 2.14, 2.10

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.