Forum: CADO-NFS
2022-08-11, 15:51
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Replies: 99
Views: 24,134
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...
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Forum: Msieve
2022-08-10, 23:06
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Replies: 83
Views: 250
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Forum: Msieve
2022-08-10, 19:25
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Replies: 83
Views: 250
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...
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Forum: CADO-NFS
2022-08-10, 19:04
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Replies: 99
Views: 24,134
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...
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Forum: Msieve
2022-08-10, 18:57
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Replies: 83
Views: 250
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...
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Forum: Msieve
2022-08-10, 00:58
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Replies: 83
Views: 250
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...
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Forum: Msieve
2022-08-09, 22:33
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Replies: 83
Views: 250
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...
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Forum: NFS@Home
2022-08-09, 14:10
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Replies: 103
Views: 5,877
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Forum: NFS@Home
2022-08-08, 02:26
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Replies: 103
Views: 5,877
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...
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Forum: NFS@Home
2022-08-07, 13:36
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Replies: 103
Views: 5,877
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...
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Forum: Conjectures 'R Us
2022-08-05, 15:26
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Replies: 1,729
Views: 188,826
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Forum: Science & Technology
2022-08-01, 20:11
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Replies: 76
Views: 40,696
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...
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Forum: Science & Technology
2022-08-01, 18:35
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Replies: 76
Views: 40,696
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Forum: Factoring
2022-07-31, 18:16
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Replies: 91
Views: 6,684
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Forum: NFS@Home
2022-07-30, 01:37
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Replies: 96
Views: 6,185
For gnfs jobs, qmax should be no more than 8...
For gnfs jobs, qmax should be no more than 8 times qmin, otherwise the duplicate ratio gets so high as to make the lower-Q relations not worth gathering.
Maybe start this job at Q= 60M? Or is my...
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Forum: Aliquot Sequences
2022-07-28, 23:24
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Replies: 1,811
Views: 210,172
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Forum: CADO-NFS
2022-07-26, 15:04
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Replies: 2
Views: 376
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Forum: Cunningham Tables
2022-07-26, 15:01
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Replies: 19
Views: 16,826
With use of remdups and remsing, I'm confident...
With use of remdups and remsing, I'm confident that a 36/35 job could be sent to msieve with fewer than 4G relations.
We can also do a team-sieve with CADO for low Q, say 100-250M, with A=32 and...
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Forum: NFS@Home
2022-07-25, 06:18
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Replies: 96
Views: 6,185
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Forum: NFS@Home
2022-07-24, 23:56
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Replies: 96
Views: 6,185
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Forum: XYYXF Project
2022-07-23, 02:31
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Replies: 32
Views: 16,931
Uh-oh! :grin:
In my view of the factoring...
Uh-oh! :grin:
In my view of the factoring world, Cunninghams (even extensions) deserve some prority. So, while I bemoan the lack of efficiency caused by C195 on 15e, I understand why it happens.
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Forum: XYYXF Project
2022-07-22, 23:38
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Replies: 32
Views: 16,931
That poly score matches the record for a deg 6...
That poly score matches the record for a deg 6 C217. Yuck!
I'll do a test-sieve with CADO, using 34LP on r side and 35 on a side. If I'm keeping my CADO translation straight, that's lpb0 = 34 and...
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Forum: XYYXF Project
2022-07-22, 20:01
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Replies: 32
Views: 16,931
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Forum: NFS@Home
2022-07-22, 19:43
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Replies: 103
Views: 6,498
I use 120 for all but the smallest jobs (and I...
I use 120 for all but the smallest jobs (and I don't post-process the small jobs on e-small or 14 anymore). I'm not convinced 124 or 130 results in a faster-to-solve matrix anyway, and if I get a...
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Forum: Aliquot Sequences
2022-07-22, 04:53
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Replies: 678
Views: 29,777
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