Forum: Software
2022-06-28, 20:00
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Replies: 72
Views: 5,687
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: 307,328
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: 4
Views: 115
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Forum: Software
2022-06-27, 11:44
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Replies: 4
Views: 115
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Forum: Software
2022-06-27, 11:04
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Replies: 4
Views: 115
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: 4
Views: 234
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: 5,303
Views: 433,202
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Forum: Homework Help
2022-06-24, 07:14
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Replies: 4
Views: 234
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Forum: Homework Help
2022-06-23, 16:53
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Replies: 4
Views: 234
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: 66
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: 1,561
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Forum: Factoring
2022-06-20, 13:14
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Replies: 21
Views: 1,024
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: 1,024
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Forum: NFS@Home
2022-06-15, 06:52
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Replies: 20
Views: 566
Thanks, that's what I figured, so I didn't do...
Thanks, that's what I figured, so I didn't do that but just assigned cores. ETA went down for a while and now it's up again. I also tried assigning the range of physical cores, but that didn't do...
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Forum: Factoring
2022-06-14, 10:34
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Replies: 21
Views: 1,024
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Forum: NFS@Home
2022-06-14, 07:01
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Replies: 20
Views: 566
Other than MPI that would be:
...
Other than MPI that would be:
recompiling with VBITS=256
assigning to physical cores
not use HT
?
Regarding HT, if the threads aren't fully utilizing the physical cores, wouldn't that...
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Forum: NFS@Home
2022-06-13, 11:36
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Replies: 20
Views: 566
Ok, having looked at old logs I can say this is...
Ok, having looked at old logs I can say this is sub-average speed but nothing strange. A 15M matrix took 140 hours, a 13 M 130 hours. So the 800 h is fine, as I said the 7401P is not that fast. So as...
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Forum: NFS@Home
2022-06-13, 11:04
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Replies: 20
Views: 566
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Forum: NFS@Home
2022-06-13, 09:12
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Replies: 20
Views: 566
found 32078384 cycles, need 31964190.
I'll...
found 32078384 cycles, need 31964190.
I'll try that, but it's usually said that, contrary to the windows scheduler, the linux cpu scheduler does a good job and just to leave it to its own devices....
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Forum: NFS@Home
2022-06-13, 08:46
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Replies: 20
Views: 566
So, the matrix was build successfully using...
So, the matrix was build successfully using TD=130:
Mon Jun 13 09:13:59 2022 matrix includes 64 packed rows
Mon Jun 13 09:14:03 2022 matrix is 31962806 x 31963031 (15913.7 MB) with weight...
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Forum: Factoring
2022-06-11, 06:34
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Replies: 21
Views: 1,024
I wrote a simple PARI script that prints the...
I wrote a simple PARI script that prints the series. First parameter is the number you want to test, the second parameter is optional and sets the number of elements that are calculated. Since there...
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Forum: NFS@Home
2022-06-08, 19:49
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Replies: 20
Views: 566
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Forum: NFS@Home
2022-06-08, 17:48
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Replies: 20
Views: 566
5p2_950M doable on 24 cores?
Somewhat embarrisingly I underestimated how different a 172 digits composite I could nicely do on a 10 core i10 incl sieving is from just the post-processing step of the 192 digits 5p2_950M.
The...
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Forum: YAFU
2022-06-08, 13:52
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Replies: 346
Views: 46,145
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Forum: EdH
2022-06-08, 13:49
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Replies: 5
Views: 1,651
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