mersenneforum.org  

Go Back   mersenneforum.org > Search Forums

Showing results 1 to 25 of 1000
Search took 0.39 seconds.
Search: Posts Made By: VBCurtis
Forum: NFS@Home 2022-08-07, 13:36
Replies: 90
Views: 5,504
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: 188,517
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: 40,501
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: 40,501
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: 6,555
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...
Forum: NFS@Home 2022-07-30, 01:37
Replies: 94
Views: 5,963
Posted By VBCurtis
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...
Forum: Aliquot Sequences 2022-07-28, 23:24
Replies: 1,803
Views: 209,031
Posted By VBCurtis
I added ~350 terms to 13^42. I'll keep working...

I added ~350 terms to 13^42. I'll keep working on it, after a summer break for heat management.
Forum: CADO-NFS 2022-07-26, 15:04
Replies: 2
Views: 333
Posted By VBCurtis
When I use the command-line flag --server-threads...

When I use the command-line flag --server-threads 10, all phases of the job use 10 threads or fewer. I haven't tried -t, and I'm not sure if they're two invocations of the same flag.

Why are you...
Forum: Cunningham Tables 2022-07-26, 15:01
Replies: 19
Views: 16,677
Posted By VBCurtis
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...
Forum: NFS@Home 2022-07-25, 06:18
Replies: 94
Views: 5,963
Posted By VBCurtis
Thanks, Carlos, and the rest of you for pointing...

Thanks, Carlos, and the rest of you for pointing out that our lack of control over clients must lead us to feed the queue that sells, so to speak.
As long as the 15e queue doesn't get long like when...
Forum: NFS@Home 2022-07-24, 23:56
Replies: 94
Views: 5,963
Posted By VBCurtis
How much faster is the 16e siever for this job? ...

How much faster is the 16e siever for this job?

The whole point of f-small was to use the 16e siever any time it is faster than 15e. It's hard for me to believe that these jobs using Q upwards of...
Forum: XYYXF Project 2022-07-23, 02:31
Replies: 32
Views: 16,903
Posted By VBCurtis
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.
Forum: XYYXF Project 2022-07-22, 23:38
Replies: 32
Views: 16,903
Posted By VBCurtis
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...
Forum: XYYXF Project 2022-07-22, 20:01
Replies: 32
Views: 16,903
Posted By VBCurtis
We're using 15e to solve SNFS-280, and difficulty...

We're using 15e to solve SNFS-280, and difficulty 303 sounds like it's only around 5x harder- so going up one siever and up one large-prime bit sounds like it "should" be enough. Can you post the...
Forum: NFS@Home 2022-07-22, 19:43
Replies: 100
Views: 6,249
Posted By VBCurtis
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...
Forum: Aliquot Sequences 2022-07-22, 04:53
Replies: 657
Views: 28,819
Posted By VBCurtis
Here are my best times using CADO on a 5950X w/...

Here are my best times using CADO on a 5950X w/ 3200Mhz memory:
111 digits 8:33
115 digits 13:43
119 digits 24:58
124 digits 41:10
127 digits 58:50
131 digits 1:38:19
135 digits 3:00:27 (this...
Forum: Aliquot Sequences 2022-07-21, 19:09
Replies: 152
Views: 53,293
Posted By VBCurtis
Looks correct to me, Ryan. mfb1 = 101...

Looks correct to me, Ryan.

mfb1 = 101 appears marginally faster than 100, and while my 50kQ test showed the same yield it should also yield a tiny bit better. It shouldn't matter much, but 101...
Forum: Aliquot Sequences 2022-07-21, 15:36
Replies: 657
Views: 28,819
Posted By VBCurtis
I tested this trick, and lingen runs normally...

I tested this trick, and lingen runs normally while other tasks are running. :tu:
Forum: Aliquot Sequences 2022-07-21, 15:30
Replies: 152
Views: 53,293
Posted By VBCurtis
The commentary from the CADO team was that as...

The commentary from the CADO team was that as this is near the lowest deg 6 size, the alg norm is much larger than rational norm.

mfb0 = 66 is around 5% faster than mfb0 = 67. Yield is within 1%,...
Forum: Aliquot Sequences 2022-07-21, 07:30
Replies: 152
Views: 53,293
Posted By VBCurtis
Here are my suggested params: tasks.lim0 =...

Here are my suggested params:
tasks.lim0 = 260000000
tasks.lim1 = 550000000
tasks.lpb0 = 34
tasks.lpb1 = 35
tasks.sieve.mfb0 = 66
tasks.sieve.mfb1 = 101
tasks.sieve.ncurves0 = 35...
Forum: Aliquot Sequences 2022-07-20, 19:49
Replies: 152
Views: 53,293
Posted By VBCurtis
I'll adapt the params from the last team sieve,...

I'll adapt the params from the last team sieve, the C207 Cunningham. I can get something posted tonight.

Ryan, this number is on the border of A=30 and I=16. Do you have a preference of which...
Forum: Aliquot Sequences 2022-07-18, 21:03
Replies: 657
Views: 28,819
Posted By VBCurtis
Gary- If you're using YAFU / GGNFS sievers,...

Gary-
If you're using YAFU / GGNFS sievers, 16GB should be enough to solve jobs as large as 165 digits. If you're running low on memory during sieving, just assign fewer sieve threads since each...
Forum: Aliquot Sequences 2022-07-15, 17:50
Replies: 1,803
Views: 209,031
Posted By VBCurtis
I have the same problem- even one other thread...

I have the same problem- even one other thread running makes lingen take hours rather than minutes.
Even more strangely, this happens even if fewer total threads are running on a CPU than the number...
Forum: Software 2022-07-14, 17:12
Replies: 45
Views: 2,733
Posted By VBCurtis
No, one should use number of curves * [total of...

No, one should use number of curves * [total of stage 1 and stage 2 run time], which measures the total time it will take to achieve a t-level.

However, the timing curve is quite broad near the...
Forum: Aliquot Sequences 2022-07-13, 23:26
Replies: 1,803
Views: 209,031
Posted By VBCurtis
I'm away on vacation for a couple more days, so I...

I'm away on vacation for a couple more days, so I don't have precise timing data handy. The time I cited is CADO-NFS claimed wall clock time for a factorization, so ignores ECM. Naturally, one can...
Showing results 1 to 25 of 1000

 
All times are UTC. The time now is 15:19.


Sun Aug 7 15:19:39 UTC 2022 up 31 days, 10:06, 1 user, load averages: 1.04, 0.91, 0.90

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.

≠ ± ∓ ÷ × · − √ ‰ ⊗ ⊕ ⊖ ⊘ ⊙ ≤ ≥ ≦ ≧ ≨ ≩ ≺ ≻ ≼ ≽ ⊏ ⊐ ⊑ ⊒ ² ³ °
∠ ∟ ° ≅ ~ ‖ ⟂ ⫛
≡ ≜ ≈ ∝ ∞ ≪ ≫ ⌊⌋ ⌈⌉ ∘ ∏ ∐ ∑ ∧ ∨ ∩ ∪ ⨀ ⊕ ⊗ 𝖕 𝖖 𝖗 ⊲ ⊳
∅ ∖ ∁ ↦ ↣ ∩ ∪ ⊆ ⊂ ⊄ ⊊ ⊇ ⊃ ⊅ ⊋ ⊖ ∈ ∉ ∋ ∌ ℕ ℤ ℚ ℝ ℂ ℵ ℶ ℷ ℸ 𝓟
¬ ∨ ∧ ⊕ → ← ⇒ ⇐ ⇔ ∀ ∃ ∄ ∴ ∵ ⊤ ⊥ ⊢ ⊨ ⫤ ⊣ … ⋯ ⋮ ⋰ ⋱
∫ ∬ ∭ ∮ ∯ ∰ ∇ ∆ δ ∂ ℱ ℒ ℓ
𝛢𝛼 𝛣𝛽 𝛤𝛾 𝛥𝛿 𝛦𝜀𝜖 𝛧𝜁 𝛨𝜂 𝛩𝜃𝜗 𝛪𝜄 𝛫𝜅 𝛬𝜆 𝛭𝜇 𝛮𝜈 𝛯𝜉 𝛰𝜊 𝛱𝜋 𝛲𝜌 𝛴𝜎𝜍 𝛵𝜏 𝛶𝜐 𝛷𝜙𝜑 𝛸𝜒 𝛹𝜓 𝛺𝜔