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Forum: Proth Prime Search 2022-09-26, 15:01
Replies: 20
Views: 2,169
Posted By bur
I assumed that the weight can be estimated from...

I assumed that the weight can be estimated from the percentage of terms in the sequence that are divisible by small factors. Which in turn could be estimated by the amount of small factors in k.
...
Forum: FactorDB 2022-09-17, 06:54
Replies: 49
Views: 4,964
Posted By bur
The initial error message was "power outage". I...

The initial error message was "power outage". I would think that would in the worst case result in the loss of a few entries, but who knows.

Generally, yes, there's a lot of unique data stored...
Forum: NFS@Home 2022-09-15, 06:05
Replies: 179
Views: 16,665
Posted By bur
Results for aliquot C174_1992_1695 (didn't loose...

Results for aliquot C174_1992_1695 (didn't loose the 7):

p82 factor: 3624621364325232093251368039886141925793212945379537167589424077672470583327124917
p93 factor:...
Forum: NFS@Home 2022-09-15, 05:58
Replies: 179
Views: 16,665
Posted By bur
Ok, thanks, that's unfortunate, but very good...

Ok, thanks, that's unfortunate, but very good advice. I was wondering how to estimate the q-range without doing a full sieve and look at the duplicate ratio.
But how would I know the duplicate ratio...
Forum: Factoring 2022-09-14, 08:04
Replies: 75
Views: 10,803
Posted By bur
Ok, so it's the other way around, by default...

Ok, so it's the other way around, by default lambda is mfb/lpb (https://cseweb.ucsd.edu/classes/wi22/cse291-14/slides/cse-291-14-lecture-11.pdf, slide 36).

I think I remember you or someone else...
Forum: NFS@Home 2022-09-13, 13:39
Replies: 179
Views: 16,665
Posted By bur
So in a way, the higher the raw yield is, the...

So in a way, the higher the raw yield is, the higher the uniques:duplicates ratio will be?
Forum: NFS@Home 2022-09-13, 12:39
Replies: 179
Views: 16,665
Posted By bur
matrix is 8306661 x 8306886 (3805.9 MB) with...

matrix is 8306661 x 8306886 (3805.9 MB) with weight 1017736557 (122.52/col)
C174_1992_1695 sufficient relations, can stop sieving.

It had a uniques rate of 80%, which I found quite high. Any idea...
Forum: Factoring 2022-09-13, 11:29
Replies: 75
Views: 10,803
Posted By bur
Thanks, I hope I finally get the fundamentals. My...

Thanks, I hope I finally get the fundamentals. My understanding is the following (I use the term "results" because I don't know whether it's relations, norms, a/b pairs, etc, I hope it doesn't matter...
Forum: Factoring 2022-09-09, 18:00
Replies: 75
Views: 10,803
Posted By bur
It's likely it put things together wrongly, the...

It's likely it put things together wrongly, the specific formulas I got from this post:

https://mersenneforum.org/showpost.php?p=542646&postcount=25

" I round that up to choose mfb, but the...
Forum: Factoring 2022-09-08, 16:26
Replies: 75
Views: 10,803
Posted By bur
I finally got into test sieving for the Proth...

I finally got into test sieving for the Proth numbers (k=1281979) I'm occasionally doing.

After some very shallow testing, for n=645 I ended up with these parameters (rational and algebraic always...
Forum: NFS@Home 2022-09-07, 19:35
Replies: 179
Views: 16,665
Posted By bur
Forgot to mention: Reserve C174_1992_1695.

Forgot to mention: Reserve C174_1992_1695.
Forum: NFS@Home 2022-09-07, 08:08
Replies: 163
Views: 11,713
Posted By bur
QUEUED AS C174_1992_1695. Congratulations on new...

QUEUED AS C174_1992_1695. Congratulations on new record Escore for a C174!

GNFS Aliquot C174 1992 i1695, ECM'ed to t55, record size poly, for 15e small:


# cownoise 2.329e-13
n:...
Forum: And now for something completely different 2022-09-02, 18:27
Replies: 9
Views: 1,341
Posted By bur
Thanks, didn't notice that. It's not possible to...

Thanks, didn't notice that. It's not possible to see new entries, though, I think?
Forum: And now for something completely different 2022-09-02, 16:02
Replies: 9
Views: 1,341
Posted By bur
List of ECPP proven primes?

With Fast-ECPP available there are so many ECPP proven primes reported recently. To my knowledge the only place that records these results (other than the Top 20 at UTM) is factordb. But you can't...
Forum: NFS@Home 2022-09-01, 07:33
Replies: 163
Views: 11,713
Posted By bur
edit: I looked up this old factorisation...

edit: I looked up this old factorisation (https://www.mersenneforum.org/showpost.php?p=605466&postcount=62), so I'll just use those parameters.



I am looking into test sieving for a C174 of...
Forum: YAFU 2022-08-16, 06:38
Replies: 22
Views: 3,946
Posted By bur
I still have the problem of YAFU taking a lot of...

I still have the problem of YAFU taking a lot of time for poly selection. I recently did a 133 digit number that took about 2 hours for sieving and more than 1 hour for poly select. The behavior is...
Forum: CADO-NFS 2022-08-16, 05:36
Replies: 106
Views: 30,347
Posted By bur
Ok, good to know.

Ok, good to know.
Forum: CADO-NFS 2022-08-15, 12:24
Replies: 106
Views: 30,347
Posted By bur
Yes, I thought that maybe they focus more on the...

Yes, I thought that maybe they focus more on the development of the software and bleeding edge parameters than those smaller ones. Still, it would be very interesting for publication (not...
Forum: Aliquot Sequences 2022-08-14, 14:35
Replies: 496
Views: 81,651
Posted By bur
It's done, I did ECM on the successor term's C195...

It's done, I did ECM on the successor term's C195 up to 7558@43e6. Completing the 110e6 curves would take about 5 days for me, so have at it :)
Forum: NFS@Home 2022-08-14, 06:20
Replies: 179
Views: 16,665
Posted By bur
Done the AL3408 to 7557@43e6 and the lower B1s...

Done the AL3408 to 7557@43e6 and the lower B1s according to the usual number of curves. I won't continue.
Forum: NFS@Home 2022-08-12, 15:47
Replies: 179
Views: 16,665
Posted By bur
C175_3408_1723 done: p69 factor:...

C175_3408_1723 done:

p69 factor: 118597456346738411807868343802129420429965766338050836035650727238447
p107 factor:...
Forum: CADO-NFS 2022-08-11, 13:42
Replies: 106
Views: 30,347
Posted By bur
Thanks, that sounds very promising. I did a C153...

Thanks, that sounds very promising. I did a C153 with stock CADO parameters so I could compare the times.

Btw, has it ever been considered to share these findings with the CADO team or generally...
Forum: CADO-NFS 2022-08-10, 05:58
Replies: 106
Views: 30,347
Posted By bur
Have you ever posted a draft for C155? I thought...

Have you ever posted a draft for C155? I thought so, but now I can't find it. Thanks.
Forum: And now for something completely different 2022-08-09, 12:16
Replies: 194
Views: 43,701
Posted By bur
Very true, my contract was up for renewal and...

Very true, my contract was up for renewal and shot up to 36 c/kWh... A 200 W computer is now 50€/month just in electricity.

Fortunately for some reason the dedicated server I use (located in...
Forum: NFS@Home 2022-08-09, 06:32
Replies: 163
Views: 11,713
Posted By bur
Ah, thanks. Then it makes sense that increasing...

Ah, thanks. Then it makes sense that increasing lpb by 1 doubles the number of required relations.
Showing results 1 to 25 of 601

 
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