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Search: Posts Made By: charybdis
Forum: CADO-NFS 2022-02-07, 22:20
Replies: 96
Views: 22,586
Posted By charybdis
incr=250 is not a good choice. Better values to...

incr=250 is not a good choice. Better values to try would be 60, 120, 210, 420; you want the leading coefficient to have lots of small prime factors.
Forum: CADO-NFS 2022-01-12, 23:46
Replies: 96
Views: 22,586
Posted By charybdis
In this case filtering would have failed whatever...

In this case filtering would have failed whatever target_density was used, because there were more ideals than relations. Once you have more relations than ideals and the excess is greater than the...
Forum: CADO-NFS 2022-01-12, 12:26
Replies: 96
Views: 22,586
Posted By charybdis
The effect isn't exactly the same, though both...

The effect isn't exactly the same, though both can be used to ensure that the matrix you get isn't way too big. required_excess tells filtering not to try building a matrix if the excess is too...
Forum: CADO-NFS 2022-01-05, 19:33
Replies: 96
Views: 22,586
Posted By charybdis
This is normal, it's a consequence of the varying...

This is normal, it's a consequence of the varying number of special-q within ranges of size 5000. The number of relations per special-q varies much less.

Incidentally, the number of special-q per...
Forum: CADO-NFS 2021-10-22, 23:33
Replies: 96
Views: 22,586
Posted By charybdis
This will be a consequence of CADO sieving below...

This will be a consequence of CADO sieving below the FB bound. As soon as Q goes above lim1, the probability that a new relation is a duplicate of a previous one drops: for example, if you're using...
Forum: CADO-NFS 2021-10-07, 17:56
Replies: 96
Views: 22,586
Posted By charybdis
The way I tested this was to look at the CPU-time...

The way I tested this was to look at the CPU-time stats in the logfile ('stats_total_cpu_time') to find ranges that took almost exactly the same length of time to sieve, and then see which of these...
Forum: CADO-NFS 2021-06-17, 12:11
Replies: 96
Views: 22,586
Posted By charybdis
I'd hold off on this c159 - given this...

I'd hold off on this c159 - given this (https://mersenneforum.org/showpost.php?p=581221&postcount=3490), I strongly suspect it's one that I've already factored. In which case I might as well provide...
Forum: CADO-NFS 2021-06-10, 12:33
Replies: 96
Views: 22,586
Posted By charybdis
The Murphy-E score reported by CADO is not the...

The Murphy-E score reported by CADO is not the same as that reported by msieve and cownoise.com. Technically the CADO one is closer to Murphy's definition of E, but it depends on the I value, qmin...
Forum: CADO-NFS 2021-05-29, 18:37
Replies: 96
Views: 22,586
Posted By charybdis
Another interesting data point is the number of...

Another interesting data point is the number of unique relations, as reported by msieve filtering, which is a more consistent indicator of when a matrix will build than the number of raw relations....
Forum: CADO-NFS 2021-05-22, 12:25
Replies: 96
Views: 22,586
Posted By charybdis
Yes - msieve needs write access to add free...

Yes - msieve needs write access to add free relations.
Forum: CADO-NFS 2021-05-19, 22:55
Replies: 96
Views: 22,586
Posted By charybdis
Actually, it's neither. There will be a line from...

Actually, it's neither. There will be a line from earlier in the filtering that matches TD, looking like this:
weight of 9242904 cycles is about 924731720 (100.05/cycle)
The default in the latest...
Forum: CADO-NFS 2021-05-17, 14:42
Replies: 96
Views: 22,586
Posted By charybdis
Msieve always gives larger but sparser matrices...

Msieve always gives larger but sparser matrices though. Still possible this was oversieved, but probably not massively so.

My hunch is that raising tasks.sieve.mfb1 from 62 to 64 would be more...
Forum: CADO-NFS 2020-06-29, 01:32
Replies: 96
Views: 22,586
Posted By charybdis
Here are a couple better polys for 86^131-1: ...

Here are a couple better polys for 86^131-1:

n:...
Forum: CADO-NFS 2020-06-28, 16:38
Replies: 96
Views: 22,586
Posted By charybdis
One more data point: the c169 from 9+8_638M. ...

One more data point: the c169 from 9+8_638M.

Parameters were
tasks.I = 14
tasks.qmin = 7000000
tasks.lim0 = 50000000
tasks.lim1 = 70000000
tasks.lpb0 = 31
tasks.lpb1 = 31
tasks.sieve.mfb0 =...
Forum: CADO-NFS 2020-05-19, 02:22
Replies: 96
Views: 22,586
Posted By charybdis
For what it's worth, here are the 95^128+1...

For what it's worth, here are the 95^128+1 factors:

p61 factor: 6257613858583898709261755903084673553330399368418555296798721
p109 factor:...
Forum: CADO-NFS 2020-05-17, 21:44
Replies: 96
Views: 22,586
Posted By charybdis
Sun May 17 19:51:22 2020 Msieve v. 1.54 (SVN...

Sun May 17 19:51:22 2020 Msieve v. 1.54 (SVN 1030M)
Sun May 17 19:51:22 2020 random seeds: 74f448f4 3f9ca822
Sun May 17 19:51:22 2020 factoring...
Forum: CADO-NFS 2020-05-15, 13:51
Replies: 96
Views: 22,586
Posted By charybdis
The c170 from Aliquot 3366 has built a matrix: ...

The c170 from Aliquot 3366 has built a matrix:

Fri May 15 13:30:04 2020 Msieve v. 1.54 (SVN 1030M)
Fri May 15 13:30:04 2020 random seeds: 85bae23a bde7ff6e
Fri May 15 13:30:04 2020 factoring...
Forum: CADO-NFS 2020-05-13, 15:56
Replies: 96
Views: 22,586
Posted By charybdis
Thank you! I'd be happy to do at least some of...

Thank you! I'd be happy to do at least some of these, though I'll be doing the c170 from Aliquot 3366 first if it survives ECM. I take it all of these numbers have had enough ECM?
Forum: CADO-NFS 2020-05-13, 13:12
Replies: 96
Views: 22,586
Posted By charybdis
I've been sieving the c168 from 5+3_1215L with...

I've been sieving the c168 from 5+3_1215L with these parameters, as suggested in the 175-180 thread:

tasks.A = 28
tasks.qmin = 10000000
tasks.lim0 = 80000000
tasks.lim1 = 115000000
tasks.lpb0...
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