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Search: Posts Made By: bur
Forum: Factoring 2021-06-14, 17:41
Replies: 280
Views: 6,873
Posted By bur
If it's unique relations, then it's only missing...

If it's unique relations, then it's only missing 1.2e6 more, which is about 2e6 relations. I'm not sure if that estimate is correct anyway, since this is the 7th or so round of filtering. ETA is in 7...
Forum: Factoring 2021-06-14, 13:50
Replies: 280
Views: 6,873
Posted By bur
Back to filtering again: Does the last line...

Back to filtering again:
Does the last line mean, it needs 17409881 relations after singleton removal?

From 27000000 unfiltered relations came only 11467661 relations. If really 17.4e6 are...
Forum: Factoring 2021-06-13, 05:34
Replies: 280
Views: 6,873
Posted By bur
The sieving goes on... 21,608,085/22,162,816 ...

The sieving goes on... 21,608,085/22,162,816



I was hoping the estimation was good, because I got a similar value of 17,000,000 with the function that yafu uses.


Well, as long as it won't...
Forum: Hardware 2021-06-13, 05:25
Replies: 3
Views: 143
Posted By bur
Ok; good thing the HT comes in handy for once....

Ok; good thing the HT comes in handy for once. Shouldn't the CPU utilization be below 100%/core then though?



AVX could play a role, too, but 80-90 W is far from what the CPU has as its default...
Forum: Hardware 2021-06-12, 06:10
Replies: 3
Views: 143
Posted By bur
Lower power consumption when sieving

CPU: Ryzen 9 3900x
RAM: 16 GB DDR4
Storage: Samsung 970 Evo
Windows 10


I was doing LLR on the 12 cores for a few months and to keep the room temperature low I throttled PPT to 128 W which...
Forum: Factoring 2021-06-12, 05:38
Replies: 280
Views: 6,873
Posted By bur
Quick update to the c165: Initial...

Quick update to the c165:


Initial relations wanted was 17032060, after filtering cado decided it needs 17820319. ETA is about 3-4 hours. I hope this won't repeat too often... :D


There were...
Forum: Proth Prime Search 2021-06-11, 10:59
Replies: 13
Views: 3,352
Posted By bur
All n < 4,100,000 have been tested, no new primes...

All n < 4,100,000 have been tested, no new primes other than the ones already posted.


Currently I'm sieving in the range of 4,100,000 < n < 10,000,000.

Smallest p-P range in progress:...
Forum: XYYXF Project 2021-06-10, 14:31
Replies: 465
Views: 89,645
Posted By bur
Ok, thanks.

Ok, thanks.
Forum: XYYXF Project 2021-06-10, 09:06
Replies: 465
Views: 89,645
Posted By bur
Impressive compilation. Do you have data on which...

Impressive compilation. Do you have data on which of the numbers are just PRPs? It would make a nice list of candidates for primo.
Forum: CADO-NFS 2021-06-10, 08:06
Replies: 44
Views: 8,573
Posted By bur
I missed your reply, I'll run tests on the...

I missed your reply, I'll run tests on the minimum number of relations after that strange C165 SNFS factorization finishes.

I entered the poly parameters into myfactor, but it came up with a...
Forum: Factoring 2021-06-10, 06:01
Replies: 280
Views: 6,873
Posted By bur
Yes, that's also part of the reason why I...

Yes, that's also part of the reason why I continued with it. ETA increased overnight to a total of 60 hours.

Sieving is fast per q though, approximately 180 s / 10,000 q (usually 600 s). Due to...
Forum: Factoring 2021-06-09, 13:55
Replies: 280
Views: 6,873
Posted By bur
For I=13 that results in 18000 rels / 10000 q,...

For I=13 that results in 18000 rels / 10000 q, but also in 63e6 rels wanted and an ETA of 38 h (34 h for initial parameters), so unless the previous relations were grossly underestimated that...
Forum: Factoring 2021-06-09, 07:16
Replies: 280
Views: 6,873
Posted By bur
Cado is running, but finds very few relations...

Cado is running, but finds very few relations already at low q, about 3000-5000 rel / 10,000 q, ETA right now (0.3% done) is 34 hours, though that usually increases. Much faster than GNFS (7-8 days...
Forum: Factoring 2021-06-07, 14:56
Replies: 280
Views: 6,873
Posted By bur
cado chokes on the number being divisible by 5,...

cado chokes on the number being divisible by 5, if I just divide it and use that as n it still fails:
Error:Generate Factor Base: Stderr output (last 10 lines only) follow (stored in
file...
Forum: Factoring 2021-06-07, 13:18
Replies: 280
Views: 6,873
Posted By bur
Thanks, I used to use vbcurtis' optimized...

Thanks, I used to use vbcurtis' optimized parameters, though of course those are optimized for GNFS, so I'll give those a try.
Forum: Factoring 2021-06-07, 13:01
Replies: 280
Views: 6,873
Posted By bur
It seems the c134 was removed by GCD, so no...

It seems the c134 was removed by GCD, so no sneaky poacher (good thing I didn't write a 2 page rant).

Regarding the SNFS difficulty, how does it relate to GNFS difficulty? I'd use yafu for that,...
Forum: Factoring 2021-06-07, 11:13
Replies: 280
Views: 6,873
Posted By bur
Ok, thanks. I was reluctant because EdH reported...

Ok, thanks. I was reluctant because EdH reported he had no success when square root failed to use msieve, but I'll give it a try and report back.

Someone already factored it and reported to...
Forum: Factoring 2021-06-06, 20:01
Replies: 280
Views: 6,873
Posted By bur
Cado failed at square root stage with ...

Cado failed at square root stage with

Error, found no suitable prime up to 1000000


Any idea what might be the problem?
Forum: Factoring 2021-06-06, 18:09
Replies: 280
Views: 6,873
Posted By bur
I honestly don't remember if I factored the...

I honestly don't remember if I factored the number already, thanks for noticing... :D


Anyway, same problem on next composite, I used the CADO converter to convert it to msieve fb and back to...
Forum: Factoring 2021-06-06, 17:48
Replies: 280
Views: 6,873
Posted By bur
Maybe the paper could mention mersenneforum.org...

Maybe the paper could mention mersenneforum.org users in the acknowledgements? But in general I participated for fun, it's nice to do factoring that has actual use.
Forum: Factoring 2021-06-06, 17:34
Replies: 280
Views: 6,873
Posted By bur
I probably make some stupid mistake, when using...

I probably make some stupid mistake, when using the poly I get:

Warning:Polynomial Selection (root optimized): Invalid polyselect file '/home/florian/Math/factorizations/SNFS/forum.poly': Key n...
Forum: Factoring 2021-06-06, 08:32
Replies: 280
Views: 6,873
Posted By bur
Thanks, LaurV, I can technically do the "if you...

Thanks, LaurV, I can technically do the "if you read the paper", but I doubt I'd come to the conclusion that they all have an SNFS poly...


And Max, can you please also post polys for the c134...
Forum: Factoring 2021-06-06, 06:50
Replies: 280
Views: 6,873
Posted By bur
Please post an SNFS poly for row 92. Can...

Please post an SNFS poly for row 92.


Can all these numbers be factored via SNFS?
Forum: Factoring 2021-06-05, 07:30
Replies: 280
Views: 6,873
Posted By bur
I'd gladly do some factoring, but admittedly I'm...

I'd gladly do some factoring, but admittedly I'm not 100% clear on what to do...


Do I just factor the numbers from your sheet? What about the magma script, is it used on the prime factors after...
Forum: Factoring 2021-06-04, 19:04
Replies: 36
Views: 1,335
Posted By bur
Ok, I suspected something something like those...

Ok, I suspected something something like those relations being not as useful, but I thought maybe it was different for SNFS.





I ran a better comparison on 1281979*2^547+1 using the poly...
Showing results 1 to 25 of 233

 
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