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Forum: Riesel Prime Search 2020-11-04, 06:56
Replies: 1,955
Views: 180,363
Posted By kuratkull
195*2^4373994-1 is prime! (1316706 digits) ...

195*2^4373994-1 is prime! (1316706 digits)

https://primes.utm.edu/primes/page.php?id=131376

Non-essential fun facts:
1) k=195 is the highest Nash weight k in RSP k<300, with a weight of...
Forum: Riesel Prime Search 2020-09-21, 05:55
Replies: 999
Views: 106,150
Posted By kuratkull
3 month update: k=193 at n=4.2M k=195 at...

3 month update:
k=193 at n=4.2M
k=195 at n=4.2M
k=197 at n=4.2M

continuing all

(rieselprime.de updated)
Forum: Riesel Prime Search 2020-07-02, 12:33
Replies: 394
Views: 45,450
Posted By kuratkull
llrCUDA works, I have been running one for...

llrCUDA works, I have been running one for months. But it's slow, much slower than a CPU in the same class .
I am getting 1.1ms per iteration on n=3.8M on a 1080TI
While the same n is getting 0.271...
Forum: Riesel Prime Search 2020-06-11, 14:11
Replies: 999
Views: 106,150
Posted By kuratkull
3 month update: k=193 at n=3.7M k=195 at...

3 month update:
k=193 at n=3.7M
k=195 at n=3.7M
k=197 at n=3.7M

continuing all

(will also update and link from rieselprime.de)
Forum: PrimeNet 2020-05-19, 06:17
Replies: 4
Views: 1,291
Posted By kuratkull
I can appreciate strict primality over PRP of...

I can appreciate strict primality over PRP of course. But I would like to point out that the likelihood PRPs the size of this specific number being Fermat liars is in the neighborhood of 10-50000. So...
Forum: Hardware 2020-04-30, 16:03
Replies: 3
Views: 1,009
Posted By kuratkull
Take a bunch of reasonably sized primes from...

Take a bunch of reasonably sized primes from Top5k or from the forums and run them.
Forum: Software 2020-04-22, 06:21
Replies: 281
Views: 37,155
Posted By kuratkull
Printing Carriage Return instead of the Newline...

Printing Carriage Return instead of the Newline symbol does that to a line.
Also I wouldn't say "Probabilistic vs Deterministic" is the reason we use the LLR test vs the Fermat test. The LLR test is...
Forum: Cloud Computing 2020-04-14, 14:07
Replies: 1,082
Views: 62,763
Posted By kuratkull
Indeed it randomly notifies about the lapsing of...

Indeed it randomly notifies about the lapsing of the 10-12 hours by saying my session was inactive, though of course it wasn't. I think it's just a mistake on their part. I have an automated setup...
Forum: Cloud Computing 2020-04-13, 06:32
Replies: 43
Views: 4,346
Posted By kuratkull
I am sure Google tries its best so that users...

I am sure Google tries its best so that users wouldn't see that. But I can see how instances could be unavailable for a short time in times of congestion. Other than that one brief time when it...
Forum: Cloud Computing 2020-04-08, 14:55
Replies: 43
Views: 4,346
Posted By kuratkull
Just happened to both of my accounts. Got...

Just happened to both of my accounts. Got backends again a short time later.
Forum: GPU to 72 2020-04-07, 15:27
Replies: 208
Views: 17,797
Posted By kuratkull
Just a note: You can not (usually) copyright a...

Just a note: You can not (usually) copyright a word/name. A word/name needs a (possibly registered) trademark. What you may have on your hands with GPU72 is a...
Forum: Cloud Computing 2020-04-07, 08:02
Replies: 43
Views: 4,346
Posted By kuratkull
CPU instances (for LLR64) have been...

CPU instances (for LLR64) have been stable/predictable for the last couple of weeks. I use two accounts with 4 instances each. They both get about 12 hours of runtime a day. Both accounts expire and...
Forum: Prime Wiki 2020-04-03, 21:37
Replies: 190
Sticky: Prime-Wiki
Views: 24,896
Posted By kuratkull
My previous comment was actually distressed about...

My previous comment was actually distressed about the suggestion of removing the k<300 table. That table seems very well defined and grows slowly. On the other hand the table for 'all' k's is indeed...
Forum: Prime Wiki 2020-04-03, 18:29
Replies: 190
Sticky: Prime-Wiki
Views: 24,896
Posted By kuratkull
The table is the most useful thing in the whole...

The table is the most useful thing in the whole wiki. It allows visual analysis and is just beautiful to look at. The HTML for the list of all Riesel k's is 50KB. That's nothing, your average cat...
Forum: Information & Answers 2020-03-21, 14:35
Replies: 12
Views: 2,533
Posted By kuratkull
Why would it be less than 100%? You want it to do...

Why would it be less than 100%? You want it to do work, so it does work on the cores you give to it.
Forum: Software 2020-03-20, 14:46
Replies: 14
Views: 2,830
Posted By kuratkull
Hi, just to chip in about CPU issues. The...

Hi, just to chip in about CPU issues. The GenuineIntel doesn't matter, all CPU's are genuine. Nobody makes "counterfeit Intel CPUs", well not working ones at least. To know if it's an ES you can look...
Forum: Programming 2020-03-18, 14:29
Replies: 51
Views: 10,367
Posted By kuratkull
R.D. Silverman - I think you mixed me up with the...

R.D. Silverman - I think you mixed me up with the OP. I am not trying to implement anything, I already did: https://github.com/dkull/rpt
Most of the stuff you commented on was left out/ignored for...
Forum: Programming 2020-03-18, 13:41
Replies: 51
Views: 10,367
Posted By kuratkull
Doing some back-of-the-napkin math here, which...

Doing some back-of-the-napkin math here, which might not be correct - I am not a mathematician, but a software engineer.
We have N=2^n-1. Let's assume n "tries" to get 1 as a result of the mod...
Forum: Programming 2020-03-17, 13:23
Replies: 51
Views: 10,367
Posted By kuratkull
Prime95, LLR64, and even my own implementation...

Prime95, LLR64, and even my own implementation use the gwnum library for the core multiplication/subtraction/modulus, not the builtin %, which works only on native ints. Before I wrote my final...
Forum: Programming 2020-03-17, 12:28
Replies: 51
Views: 10,367
Posted By kuratkull
This interests me too because I implemented the...

This interests me too because I implemented the LLR test (for Riesel primes, but works on Mersenne primes too, just set k=1 )[ https://github.com/dkull/rpt/ ] (https://github.com/dkull/rpt]) and...
Forum: Riesel Prime Search 2020-03-15, 10:23
Replies: 23
Views: 4,851
Posted By kuratkull
Haha, at dying on k=1. It's so crazy it might...

Haha, at dying on k=1. It's so crazy it might just work. Or I just print out a special warning when using k=1. Though the license does not put the burden of notifying the user on me.



Also...
Forum: Lounge 2020-03-14, 15:36
Replies: 165
Views: 19,647
Posted By kuratkull
Thanks for reminding it. Happy pi day!

Thanks for reminding it. Happy pi day!
Forum: Riesel Prime Search 2020-03-14, 10:26
Replies: 23
Views: 4,851
Posted By kuratkull
I would have written the same if the license said...

I would have written the same if the license said that you have to perform an interpretive dance in public when you find a prime.They have a strange license because they do not ask me to notify the...
Forum: Riesel Prime Search 2020-03-14, 01:16
Replies: 23
Views: 4,851
Posted By kuratkull
I didn't translate nor copy his code in any even...

I didn't translate nor copy his code in any even barely attributable capacity, so this is not an issue.
Forum: Riesel Prime Search 2020-03-13, 22:30
Replies: 23
Views: 4,851
Posted By kuratkull
I am not bundling any third party code and I have...

I am not bundling any third party code and I have not copied code from LLR64, so RPT is completely mine. I think only the compiled binary is suhject to the licenses, because the executable contains...
Showing results 1 to 25 of 136

 
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