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Forum: Factoring 2022-05-29, 03:24
Replies: 56
Views: 1,257
Posted By VBCurtis
How, in your design, are you going to know you're...

How, in your design, are you going to know you're using "strong semiprimes" unless you factor them first? Your system is designed to use numbers without known factors, but you don't have any other...
Forum: CADO-NFS 2022-05-28, 18:49
Replies: 24
Views: 2,304
Posted By VBCurtis
I ended up buying a 5950X, 16 core Ryzen on...

I ended up buying a 5950X, 16 core Ryzen on 2-channel DDR4.
I had 4x8GB ram from the previous "kablooey" build, so I reused that.
After about 24hr running, the machine failed and refused to post. ...
Forum: CADO-NFS 2022-05-28, 18:19
Replies: 64
Views: 3,236
Posted By VBCurtis
Hrmmm.... poly score nearly 50% better than the...

Hrmmm.... poly score nearly 50% better than the last one, but only 15% less sieve time. That's bad- especially when raw relations needed went from 209M to 169M.
Aha! I forgot: Breaking 3LP...
Forum: CADO-NFS 2022-05-27, 20:23
Replies: 64
Views: 3,236
Posted By VBCurtis
Looks like 7-8% slower than the scaling one would...

Looks like 7-8% slower than the scaling one would expect for a C162 given the timing data from the C165 (that is, using the "double effort every 5.5 digits" heuristic).

I'd expect 3.72...
Forum: Aliquot Sequences 2022-05-27, 14:20
Replies: 238
Views: 11,007
Posted By VBCurtis
In principle, it should be possible to get...

In principle, it should be possible to get running through the linux-term prompt within win10, but I imagine it's a bear to make that happen. I think you're stuck with the software you've got.
Forum: Aliquot Sequences 2022-05-26, 16:10
Replies: 238
Views: 11,007
Posted By VBCurtis
Is this CADO or GGNFS/yafu? That same Z620...

Is this CADO or GGNFS/yafu?

That same Z620 has 8min 20 sec for a C103 and almost exactly 60 min for C120, running CADO with the params files posted to the CADO forum. If you're in Linux, I...
Forum: Aliquot Sequences 2022-05-25, 20:31
Replies: 238
Views: 11,007
Posted By VBCurtis
Ed's farm is something like 100 cores spread over...

Ed's farm is something like 100 cores spread over a ton of rather old hardware, like HP Z600 age or even some Core2.
His magic is in the scripting to get them all to work together. :)

My notes...
Forum: Conjectures 'R Us 2022-05-25, 20:24
Replies: 1,723
Views: 181,624
Posted By VBCurtis
I think he meant that going to 10k himself would...

I think he meant that going to 10k himself would yield something whose next step is better for BOINC. The 5k-10k tests are a little small for BOINC, as you observe. That is, I think you two agree.
Forum: Conjectures 'R Us 2022-05-25, 17:37
Replies: 2,422
Views: 249,100
Posted By VBCurtis
R400 is enormous and slow- I broke the k-range...

R400 is enormous and slow- I broke the k-range into 5 parts. Two of them are done to 10k (up to k=4M), while the other three are done only to 5k and in progress (4-8M, 8-14M, 14-20M).
I didn't...
Forum: XYYXF Project 2022-05-25, 00:22
Replies: 18
Views: 1,912
Posted By VBCurtis
Second ECM run complete, on the number quoted...

Second ECM run complete, on the number quoted here.
The third of four in the list was factored by yoyo; I'll work on #4 in a week or so when I finish ECM on 13_2_929m1.
Forum: Conjectures 'R Us 2022-05-24, 19:23
Replies: 1,723
Views: 181,624
Posted By VBCurtis
R36 is complete to 420k (840k base 6, as LLR...

R36 is complete to 420k (840k base 6, as LLR expresses the candidates).
I've moved this job from an old Ivy Bridge to a new Ryzen 5950X, still two cores. I'm continuing for a while still, 500k at...
Forum: Conjectures 'R Us 2022-05-24, 19:21
Replies: 2,422
Views: 249,100
Posted By VBCurtis
R327 has reached 715k. I'm continuing, still...

R327 has reached 715k.
I'm continuing, still one core on each of the 3 k-values.
Would Gary like the results files so far?
Forum: NFS@Home 2022-05-24, 18:04
Replies: 72
Views: 3,927
Posted By VBCurtis
3 large prime jobs produce matrices 10-20% larger...

3 large prime jobs produce matrices 10-20% larger than jobs with 2LP on both sides, when comparing the same-size job (both SNFS and GNFS). I usually go for 5-10% more raw relations when stepping from...
Forum: Factoring 2022-05-24, 15:33
Replies: 1,859
Views: 208,028
Posted By VBCurtis
I am mostly an observer to this project, but any...

I am mostly an observer to this project, but any changes that make the underlying math easier to understand / do on one's own seems a clear win for the project.
Forum: NFS@Home 2022-05-19, 15:36
Replies: 1,926
Views: 179,804
Posted By VBCurtis
I don't see a hard limit as a concept for any of...

I don't see a hard limit as a concept for any of the sievers- before the era of f-small, we showed that 15e can handle GNFS-198 and similar-sized SNFS. That doesn't mean it's a good idea, because...
Forum: Factoring 2022-05-18, 21:16
Replies: 56
Views: 1,257
Posted By VBCurtis
You're not the first, nor the second, person to...

You're not the first, nor the second, person to think "I know, I'll use factoring as the basis for a coin!"
But you're the least educated one, so far- the lowest expertise about crypto, or about...
Forum: Factoring 2022-05-17, 16:18
Replies: 56
Views: 1,257
Posted By VBCurtis
What problem does this idea solve that isn't...

What problem does this idea solve that isn't solved by an existing blockchain? Why is this better, from a crypto standpoint?

How would you make the numbers to be factored of any interest...
Forum: NFS@Home 2022-05-14, 17:48
Replies: 50
Views: 3,429
Posted By VBCurtis
Reserving 13_2_927m1. I've decided to do some...

Reserving 13_2_927m1.
I've decided to do some 16f sieving from Q=20-25M locally, so I may as well solve the matrix when ready.
Forum: NFS@Home 2022-05-13, 23:55
Replies: 59
Views: 3,515
Posted By VBCurtis
QUEUED AS 13_2_927m1 13*2^927-1 is ready for...

QUEUED AS 13_2_927m1

13*2^927-1 is ready for 15e:
n:...
Forum: NFS@Home 2022-05-13, 23:01
Replies: 50
Views: 3,429
Posted By VBCurtis
13_2_923m1 is factored: p69 factor:...

13_2_923m1 is factored:
p69 factor: 958959577261450248176339073420611844464818440947887688621623347216757
p187 factor:...
Forum: Factoring 2022-05-12, 21:01
Replies: 17
Views: 717
Posted By VBCurtis
You really ought to consider how many [expected]...

You really ought to consider how many [expected] trials it would take to find one counterexample. I mean, Charybdis spelled it out for you, but you seem to have ignored him. A one in 10^50 chance per...
Forum: XYYXF Project 2022-05-05, 01:00
Replies: 18
Views: 1,912
Posted By VBCurtis
First one done (quoted number for clarity),...

First one done (quoted number for clarity), 1000@65e7 and 800@12e8.
Starting second one now.
Haven't finished building the new desktop yet, which is why this is taking 3x as long as I expected.
Forum: NFS@Home 2022-05-05, 00:57
Replies: 111
Views: 13,558
Posted By VBCurtis
Was gonna say... yield of 1 is never ever a good...

Was gonna say... yield of 1 is never ever a good idea. C169 is right on the edge of 15e-small.
Forum: CADO-NFS 2022-04-29, 20:50
Replies: 64
Views: 3,236
Posted By VBCurtis
If I've got the scaling of poly score vs sieve...

If I've got the scaling of poly score vs sieve time, looks like 88 is quicker.
Forum: CADO-NFS 2022-04-28, 21:17
Replies: 64
Views: 3,236
Posted By VBCurtis
Not really; you'll have a slightly higher...

Not really; you'll have a slightly higher duplicate rate, meaning you may need an extra 1-3M raw relations to get the matrix size you expect. Sieve time will barely change.
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