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Forum: CADO-NFS 2022-08-15, 14:18
Replies: 101
Views: 24,318
Posted By VBCurtis
I'm working this week on C140 and C145; I seem to...

I'm working this week on C140 and C145; I seem to have lost the trendline here, having trouble finding settings fast enough to match my expectations based on C120 and C130 timings.
I won't be...
Forum: Factoring 2022-08-15, 14:16
Replies: 46
Views: 1,382
Posted By VBCurtis
That has been CADO's procedure for as long as...

That has been CADO's procedure for as long as I've used it.
Forum: Factoring 2022-08-15, 05:57
Replies: 46
Views: 1,382
Posted By VBCurtis
The last step CADO takes in a factorization job...

The last step CADO takes in a factorization job with workdir in /tmp is to delete the work folder. If CADO does not finish for any reason, the folder isn't deleted.
Forum: Aliquot Sequences 2022-08-14, 05:33
Replies: 706
Views: 30,573
Posted By VBCurtis
I've had polyselect hang on occasional small...

I've had polyselect hang on occasional small ad-values, which is what caused me to add "admin = " lines to my polyselect params. It seems that when I skip 0-5000 or 0-10k, these hangs don't happen....
Forum: Factoring 2022-08-14, 05:15
Replies: 46
Views: 1,382
Posted By VBCurtis
Well, it's strange that you're getting the same...

Well, it's strange that you're getting the same error on two machines that none of us have seen before.
Yet, you're letting CADO decide where to store the files, which reduces the chance this is...
Forum: Factoring 2022-08-13, 03:01
Replies: 46
Views: 1,382
Posted By VBCurtis
It's hard to help you when you give such vague...

It's hard to help you when you give such vague information. Exactly what would not work "below in readme"? What did you try, and what was the result?

"any command line references" is also really...
Forum: Aliquot Sequences 2022-08-12, 20:25
Replies: 706
Views: 30,573
Posted By VBCurtis
Excellent! I'll start with the C141 Saturday,...

Excellent!
I'll start with the C141 Saturday, and then a couple of the C140s. If you and Gary could skip those specifically, just C140 and C141 will hold me over for a couple days (and hopefully...
Forum: Msieve 2022-08-12, 19:53
Replies: 97
Views: 670
Posted By VBCurtis
Those binaries are all there are for the GGNFS...

Those binaries are all there are for the GGNFS siever software. The number 11 through 16 in the binary names indicate the "size" of the siever, in that larger sievers are used to factor larger...
Forum: Msieve 2022-08-12, 13:21
Replies: 97
Views: 670
Posted By VBCurtis
When you tighten the stage1norm bound, you'll get...

When you tighten the stage1norm bound, you'll get less output to output.p. However, you should instead run msieve with -np1 -nps, which instead of creating a .p file simply feeds the results from...
Forum: Aliquot Sequences 2022-08-12, 13:11
Replies: 706
Views: 30,573
Posted By VBCurtis
I return home from a lengthy trip Saturday, and I...

I return home from a lengthy trip Saturday, and I plan to continue refining CADO parameters for C135-C150 files. As such, I'll soon need a supply of C138 to C147 numbers to factor. Will this...
Forum: storflyt32 2022-08-12, 13:06
Replies: 175
Views: 48,161
Posted By VBCurtis
:tu: Well played.

:tu:

Well played.
Forum: CADO-NFS 2022-08-11, 15:51
Replies: 101
Views: 24,318
Posted By VBCurtis
When I first discovered that the stock params...

When I first discovered that the stock params were not very fast, I sent new files to the CADO folks for C100 to C120. Some of them were accepted, others were deemed not a useful improvement. One...
Forum: Msieve 2022-08-10, 23:06
Replies: 97
Views: 670
Posted By VBCurtis
How do you know your values worked, if you didn't...

How do you know your values worked, if you didn't produce any output to an .ms file? Saying your command to generate polynomials worked when you didn't produce any polynomials is a bit strange.
...
Forum: Msieve 2022-08-10, 19:25
Replies: 97
Views: 670
Posted By VBCurtis
NFS = Number Field Sieve. That's a method of...

NFS = Number Field Sieve. That's a method of factorization.
GNFS and SNFS are types of NFS jobs: General and Special. General is just that- the input number has no special form. Special means the...
Forum: CADO-NFS 2022-08-10, 19:04
Replies: 101
Views: 24,318
Posted By VBCurtis
I return home Saturday, I ought to be able to...

I return home Saturday, I ought to be able to post a faster one Sunday for C150 and C155.

I was nearly done refining C100-C130 params when I left on this trip; C135-C155 I still have more data to...
Forum: Msieve 2022-08-10, 18:57
Replies: 97
Views: 670
Posted By VBCurtis
Yep! There's lots of factoring projects out...

Yep! There's lots of factoring projects out there, and many of them have a pleasant intellectual challenge to figure out how to make SNFS polynomials when such forms are possible.

Msieve can...
Forum: Msieve 2022-08-10, 00:58
Replies: 97
Views: 670
Posted By VBCurtis
Aw, thanks for the shout-out, Sean! I can...

Aw, thanks for the shout-out, Sean!

I can clarify a little bit about the 0.055 and 0.06 ratios for stage 1 and stage 2 norms:

Stage 1 is the part run on the GPU, and even a slow GPU produces a...
Forum: Msieve 2022-08-09, 22:33
Replies: 97
Views: 670
Posted By VBCurtis
You can tell msieve which coefficients (c5...

You can tell msieve which coefficients (c5 values) to search over for -np. So, you can in effect resume a search by noting what coeff your last search ended at, and starting your next round at...
Forum: NFS@Home 2022-08-09, 14:10
Replies: 103
Views: 5,977
Posted By VBCurtis
It doesn't. The required number rises by ~75%. ...

It doesn't. The required number rises by ~75%.
Many test-sievers use "twice as many relations" as their metric, and decide the smaller LPB is faster when it's not. I've completed 32LP jobs with...
Forum: NFS@Home 2022-08-08, 02:26
Replies: 103
Views: 5,977
Posted By VBCurtis
I've never noticed this- my matrices seem to...

I've never noticed this- my matrices seem to depend on input size much more than LP size, until I get to 32LP. I'd be quite surprised to learn that 30 vs 31 is more than 15% larger matrix, for a...
Forum: NFS@Home 2022-08-07, 13:36
Replies: 103
Views: 5,977
Posted By VBCurtis
Bur- When testing params choices on CADO, I...

Bur-
When testing params choices on CADO, I find I need 2-3% more relations per digit for a given LP bound choice, and 70% more relations for a given input number for each increase of 1 LPB. 2% per...
Forum: Conjectures 'R Us 2022-08-05, 15:26
Replies: 1,729
Views: 189,109
Posted By VBCurtis
Is this the most unlucky range result yet in this...

Is this the most unlucky range result yet in this project? A more-than-doubling of N-range tested with just one out of 21 k-values solved seems rather exceptional.
Forum: Science & Technology 2022-08-01, 20:11
Replies: 76
Views: 40,763
Posted By VBCurtis
If uniform density, centre of mass of a finite...

If uniform density, centre of mass of a finite sphere is at the center of the sphere; or, why isn't it the same for a circle, sphere, and 3-sphere? I suppose I'm missing a subtlety when addressing a...
Forum: Science & Technology 2022-08-01, 18:35
Replies: 76
Views: 40,763
Posted By VBCurtis
If we accept the universe is finite in size, then...

If we accept the universe is finite in size, then the center of mass of this finite object is where I would expect matter to collapse toward. That would be the "preferred place".
Forum: Factoring 2022-07-31, 18:16
Replies: 91
Views: 6,769
Posted By VBCurtis
So, your claim is that M1277 is a perfect square?...

So, your claim is that M1277 is a perfect square? That is, its square root is an integer?

And your evidence for this is that you used an *integer* math package to compute the square root? It...
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