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Forum: FactorDB 2021-05-14, 16:05
Replies: 2
Views: 35
Posted By bur
Add option to submit unsuccesful ECM work done

I think it would be a very helpful feature if users could submit unsuccessful ECM work done on a composite. There are lots of composites in the "factors tables" that are at digit levels which make...
Forum: FactorDB 2021-05-14, 15:57
Replies: 465
Views: 73,677
Posted By bur
Yep, Proth is altogether missing from factordb,...

Yep, Proth is altogether missing from factordb, these numbers are consistently called Cullen at the site. It would probably be sufficient to exchange one string for the other.
Forum: CADO-NFS 2021-05-10, 17:18
Replies: 19
Views: 6,490
Posted By bur
Currently sieving ETA is already saturday, 15th,...

Currently sieving ETA is already saturday, 15th, but it usually increased significantly after a while. I report back once the factorization is finished.
Forum: CADO-NFS 2021-05-10, 06:06
Replies: 19
Views: 6,490
Posted By bur
Ok, I started the factorization. I think final q...

Ok, I started the factorization. I think final q and the matrix properties can be looked up in the log file?

Should I have cado do the linear algebra or doesn't it matter?
Forum: CADO-NFS 2021-05-08, 14:28
Replies: 43
Views: 12,677
Posted By bur
Thanks, I want to factor 10*102!+1 for...

Thanks, I want to factor 10*102!+1 for http://oeis.org/A095194.


Judging from the factorization times so far it should take about 2 weeks, so it's certainly worth the wait.
Forum: CADO-NFS 2021-05-08, 06:12
Replies: 43
Views: 12,677
Posted By bur
Any chance a C165 file will be available shortly?

Any chance a C165 file will be available shortly?
Forum: CADO-NFS 2021-05-04, 18:28
Replies: 522
Sticky: CADO NFS
Views: 80,601
Posted By bur
I'll give it a try, right now cado is set to do...

I'll give it a try, right now cado is set to do the sieving and filtering with tasks.linalg.run=false. If it fails I can always redo the filtering with msieve, right?


workdir is set to a...
Forum: CADO-NFS 2021-05-04, 17:12
Replies: 522
Sticky: CADO NFS
Views: 80,601
Posted By bur
Ok, thanks for the info. When I have some spare...

Ok, thanks for the info. When I have some spare time I'll look into setting up scripts to do ECM, then cado and finally msieve for linear algebra. Could be interesting to setup.



In that...
Forum: FactorDB 2021-05-04, 13:21
Replies: 1,617
Views: 150,321
Posted By bur
This is still the case, it's blocking the "real"...

This is still the case, it's blocking the "real" Silvester sequence (a(0) = 2) which just stops at 2. Since factorization is not required to continue the sequence it should just proceed.
Forum: CADO-NFS 2021-05-04, 11:49
Replies: 522
Sticky: CADO NFS
Views: 80,601
Posted By bur
An update about my problem with the parameter...

An update about my problem with the parameter files. In the README I found this section (fortunately before I submitted a bug):

The difficulty here is that when `cado-nfs.py` uses a parameter file...
Forum: YAFU 2021-05-03, 18:13
Replies: 102
Views: 3,464
Posted By bur
As a general question, how often do you guys...

As a general question, how often do you guys build a new version of yafu or cado? Should I just check the repository for the changelog?
Forum: YAFU 2021-05-03, 17:23
Replies: 102
Views: 3,464
Posted By bur
Thank you.... !!! :D That was it. Why...

Thank you.... !!! :D


That was it. Why does it seem to work for almost everyone without that but not for me? Or did I delete it at some point?
Forum: Aliquot Sequences 2021-05-03, 15:01
Replies: 11
Views: 654
Posted By bur
The C153 factored into P70 =...

The C153 factored into

P70 = 3407351990367760356138635979174058546304606646114792101947335425441189
P83 = 46737501435762368000109540192441630036675060296611969851184094441980671609477418807
...
Forum: CADO-NFS 2021-05-03, 14:16
Replies: 21
Views: 5,067
Posted By bur
Ah, that's good to know! Maybe a stupid...

Ah, that's good to know!

Maybe a stupid question, but since msieve is open source why is the implementation of cado-nfs linear algebra not just taken from msieve?
Forum: CADO-NFS 2021-05-03, 13:32
Replies: 21
Views: 5,067
Posted By bur
Thanks, it's basically your linked post with the...

Thanks, it's basically your linked post with the small addition of how to convert poly to fb. I'm glad this error can easily be worked out, otherwise I'd be quite nervous on longer jobs.

Not sure...
Forum: CADO-NFS 2021-05-03, 12:13
Replies: 21
Views: 5,067
Posted By bur
So I just ignored the cado error message and used...

So I just ignored the cado error message and used the relations with msieve. In case someone has the same problem in the future:

All required files are in workdir/cxxx.upload.
First combine all...
Forum: CADO-NFS 2021-05-03, 10:18
Replies: 21
Views: 5,067
Posted By bur
Unfortunately, I ran into that error on a C153...

Unfortunately, I ran into that error on a C153 which ran over the weekend:

Warning:Command: Process with PID 849626 finished with return code -6 Error:Filtering - Duplicate Removal,...
Forum: Proth Prime Search 2021-05-03, 07:40
Replies: 11
Views: 1,924
Posted By bur
No new primes for n < 3,600,000 Largest n...

No new primes for n < 3,600,000


Largest n in progress = 3,875,000
# of digits = 1,166,500 (rank: ~ 325)
FFT size = 400k
Avg. time = 4970 s

Smallest n in progress = 3,600,000
# of digits =...
Forum: YAFU 2021-05-03, 06:41
Replies: 16
Views: 720
Posted By bur
Thanks for the explanation. My main problem is...

Thanks for the explanation. My main problem is probably that I don't know anything about the concept of "number fields", I'll try and look it up.

Simplified, could it be said that NFS is still...
Forum: YAFU 2021-05-02, 16:35
Replies: 102
Views: 3,464
Posted By bur
Still the same error. This is caused by...

Still the same error.


This is caused by libmsieve.a ? Or can it also be due to something in relation to ysieve or ytools? The old sourceforge yafu build using that same msieve, so I'm wondering...
Forum: YAFU 2021-05-02, 15:49
Replies: 16
Views: 720
Posted By bur
I found good explanations online for quadratic...

I found good explanations online for quadratic sieve factoring, it can even be used manually for small number which was helpful to understand the mechanism.


It seems somewhat similar, but if I...
Forum: YAFU 2021-05-02, 15:37
Replies: 102
Views: 3,464
Posted By bur
I tried both, still that error. So the error...

I tried both, still that error. So the error comes from cc for some reason not having included libmsieve.a?
Forum: YAFU 2021-05-01, 11:33
Replies: 102
Views: 3,464
Posted By bur
No, most (all) of my posts here regarding...

No, most (all) of my posts here regarding mathmatics would probably be somewhat shameful for a "real" mathmatician. :D


-l../msieve/libmsieve.a still results in the error.


The path should...
Forum: YAFU 2021-05-01, 05:42
Replies: 102
Views: 3,464
Posted By bur
Unfortunately that still gives the exact same...

Unfortunately that still gives the exact same error.
Forum: YAFU 2021-05-01, 05:07
Replies: 102
Views: 3,464
Posted By bur
Here's what I did:git clone...

Here's what I did:git clone https://github.com/bbuhrow/yafu
cd yafu
make NFS=1 USE_SSE41=1 USE_AVX=1
This is the output of the failed building of libynfs.a (if you need all I don't know how to...
Showing results 1 to 25 of 169

 
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