Forum: Lone Mersenne Hunters
2022-07-04, 06:09
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Replies: 115
Views: 53,557
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Forum: Lone Mersenne Hunters
2022-07-03, 16:12
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Replies: 115
Views: 53,557
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Forum: Software
2022-07-03, 07:04
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Replies: 77
Views: 6,036
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Forum: And now for something completely different
2022-07-01, 19:00
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Replies: 184
Views: 11,533
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Forum: And now for something completely different
2022-07-01, 11:02
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Replies: 184
Views: 11,533
Thanks! I can sort of follow the wikipedia...
Thanks! I can sort of follow the wikipedia article on ECPP. The "trial division" from the output relates to finding a prime factor q of m?
I don't really see why the number of bits reduces, that...
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Forum: And now for something completely different
2022-07-01, 09:35
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Replies: 184
Views: 11,533
Sorry, if I'm being dense, but where do I find...
Sorry, if I'm being dense, but where do I find the current number of bits in the output?
I was hoping someone would feed me a simplyfied version ;) I'll try and understand the general concept and...
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Forum: And now for something completely different
2022-07-01, 05:50
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Replies: 184
Views: 11,533
Thanks, I'd have assumed it'd be along...
Thanks, I'd have assumed it'd be along O(log(n)^2) like, afair, NFS factoring and LLR testing is. Generally, what I was after though, is it possible to say which value these parameters qroot/etc....
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Forum: And now for something completely different
2022-06-30, 11:22
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Replies: 184
Views: 11,533
A question regarding the progress with the -v...
A question regarding the progress with the -v switch, I noticed values like qroot, Cornacchia and trial div increase over time, are those the values to look out for? If so, up to which value will...
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Forum: And now for something completely different
2022-06-30, 08:13
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Replies: 184
Views: 11,533
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Forum: And now for something completely different
2022-06-30, 07:58
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Replies: 184
Views: 11,533
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Forum: Software
2022-06-29, 20:43
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Replies: 77
Views: 6,036
It's one core per worker, average utilization...
It's one core per worker, average utilization when using 11 workers and thus cores is 11.1x on htop, so it seems to use more or less 100% of a core all the time.
With gmp-ecm I have much smaller...
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Forum: Software
2022-06-29, 06:06
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Replies: 77
Views: 6,036
Ok, thanks. I like the ease of having just one...
Ok, thanks. I like the ease of having just one program work at it, but if it speeds things up considerably. I also noticed, that when yafu/gmp-ecm is running, the CPU gets close to 80 °C and most...
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Forum: Software
2022-06-28, 20:00
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Replies: 77
Views: 6,036
I run B1=3M ECM curves on expoenents around...
I run B1=3M ECM curves on expoenents around 22,000. I noticed all workers use 100MB RAM for stage 2. Is there some setting that limits the usage or is that little memory required?
I have:...
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Forum: PrimeNet
2022-06-28, 12:08
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Replies: 2,487
Views: 308,532
Not sure if this is a server problem, but...
Not sure if this is a server problem, but whenever I try to access anything at mersenne.org I get a 403 "forbidden" error.
It happens when I tried to download the mprime.tar.gz, happens when...
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Forum: Software
2022-06-27, 12:26
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Replies: 5
Views: 173
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Forum: Software
2022-06-27, 11:44
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Replies: 5
Views: 173
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Forum: Software
2022-06-27, 11:04
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Replies: 5
Views: 173
Proth test performed by LLR
According to the rieselprime.de Wiki, LLR uses the Proth's theorem to test for primality of Proth numbers, i.e. finding a number a such that a^{(p-1)/2} \equiv -1 \pmod p. To my understanding that...
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Forum: Homework Help
2022-06-24, 12:30
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Replies: 6
Views: 516
Thanks, actually, I saw your various unique...
Thanks, actually, I saw your various unique primes at Caldwell's list before, so I knew that concept, but didn't connect it to this phenomenon.
In hindsight this obviously occurs for every prime...
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Forum: GPU to 72
2022-06-24, 11:23
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Replies: 5,304
Views: 434,642
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Forum: Homework Help
2022-06-24, 07:14
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Replies: 6
Views: 516
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Forum: Homework Help
2022-06-23, 16:53
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Replies: 6
Views: 516
Peculiar divisors of k.10^n-1
I noticed that 3 * 10^272 - 1 / 13 = 230769...23076923. This periodic appearance in base 10 shows for all exponents where the number is divisible by 13, i.e. 3 * 10^32 - 1 / 13 =...
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Forum: Miscellaneous Math
2022-06-23, 16:30
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Replies: 1
Views: 84
Fermat numbers and primality
This is misc. math, so it's just some, maybe trivial, musings and I write this down as much to my own benefit as for the chance that someone else might find it interesting. I.e., please don't expect...
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Forum: Cloud Computing
2022-06-21, 07:09
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Replies: 15
Views: 1,595
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Forum: Factoring
2022-06-20, 13:14
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Replies: 21
Views: 1,052
Just copy&paste the code into GP. Then you can...
Just copy&paste the code into GP. Then you can run it via omPhiSeq(n,j) where n is the first value of the sequence and j (which is optional) is the number of terms you want to calculate. For example...
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Forum: Factoring
2022-06-15, 15:50
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Replies: 21
Views: 1,052
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