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Search: Posts Made By: charybdis
Forum: Msieve 2020-09-20, 21:37
Replies: 1,964
Views: 98,903
Posted By charybdis
c183 polys

Here are a few, fresh from the CADO oven:

n:...
Forum: CADO-NFS 2020-09-13, 16:21
Replies: 123
Views: 3,655
Posted By charybdis
Sieving Q from 30M to 201M took 109.9M...

Sieving Q from 30M to 201M took 109.9M CPU-seconds, and produced:
Sun Sep 13 13:55:54 2020 commencing relation filtering
Sun Sep 13 13:55:54 2020 setting target matrix density to 110.0
Sun Sep...
Forum: CADO-NFS 2020-09-12, 18:53
Replies: 123
Views: 3,655
Posted By charybdis
First successful attempt at a matrix for the c184...

First successful attempt at a matrix for the c184 from 4+3_466:

Sat Sep 12 17:35:10 2020 Msieve v. 1.54 (SVN 1030M)
Sat Sep 12 17:35:10 2020 random seeds: 24ad7ccb b689eb64
Sat Sep 12 17:35:10...
Forum: Msieve 2020-09-08, 00:20
Replies: 170
Views: 21,936
Posted By charybdis
Are you sure the difference in skews isn't down...

Are you sure the difference in skews isn't down to CADO and msieve having different methods for computing the skew? The two polys have very similar coefficient sizes.

I'm happy for the spun...
Forum: Msieve 2020-09-03, 21:09
Replies: 170
Views: 21,936
Posted By charybdis
c184

Cofactor of HCN 4+3_466:

n:...
Forum: CADO-NFS 2020-09-02, 23:36
Replies: 123
Views: 3,655
Posted By charybdis
This is what I've got for c180: ...

This is what I've got for c180:

###########################################################################
# Polynomial selection...
Forum: CADO-NFS 2020-09-01, 23:43
Replies: 123
Views: 3,655
Posted By charybdis
The c183 stats below aren't directly comparable...

The c183 stats below aren't directly comparable to those for the c182 above, for a couple of reasons.
Firstly, I ran the c183 on a slightly different set of machines, giving about a 1% speedup in...
Forum: Msieve 2020-08-24, 23:34
Replies: 170
Views: 21,936
Posted By charybdis
c183

Cofactor of HCN 10+7_302:

n:...
Forum: CADO-NFS 2020-08-23, 16:22
Replies: 123
Views: 3,655
Posted By charybdis
c182 stats: Poly score 6.643e-14. 98.0M...

c182 stats:

Poly score 6.643e-14.
98.0M CPU-seconds sieving (Q 20M-181.4M) for 321M raw relations, 218M unique.
TD=110 produced a 17.8M matrix.

The parameters are still holding up fairly well...
Forum: Msieve 2020-08-17, 15:58
Replies: 1,964
Views: 98,903
Posted By charybdis
Here's one: n:...

Here's one:

n: 9536454284838131188510297375465325383144598450008668632355935685754692107419202674411506591342057862756227100567184249373517764331520778025660438418594966383559123819525015791...
Forum: CADO-NFS 2020-08-16, 01:14
Replies: 123
Views: 3,655
Posted By charybdis
Despite what sieve/README.descent says ("in the...

Despite what sieve/README.descent says ("in the first case, lambda defaults to mfb0/lpb0+0.1 as everywhere else in cado-nfs"), it looks like I was wrong, and presumably that readme file is outdated....
Forum: CADO-NFS 2020-08-15, 02:19
Replies: 123
Views: 3,655
Posted By charybdis
The last c180 did indeed finish around 130M; the...

The last c180 did indeed finish around 130M; the other numbers had slightly better polys and finished closer to 120M.
Forum: CADO-NFS 2020-08-15, 01:44
Replies: 123
Views: 3,655
Posted By charybdis
Stats for c180 with lambda0=1.93: Poly score...

Stats for c180 with lambda0=1.93:

Poly score 9.285e-14.
70.2M CPU-seconds sieving for 322M raw relations, 218M unique.
TD=110 produced a 15.8M matrix.

Poly is ~7% worse than the c179 that I...
Forum: CADO-NFS 2020-08-10, 18:39
Replies: 23
Views: 3,409
Posted By charybdis
Tried this out - a single instance of las with...

Tried this out - a single instance of las with their parameters uses 38GB of memory :max:
Forum: CADO-NFS 2020-08-09, 01:49
Replies: 123
Views: 3,655
Posted By charybdis
c180 results: Poly score 9.842e-14, within 2%...

c180 results:
Poly score 9.842e-14, within 2% of the score for the last c179.
65.1M CPU-sec sieving for 321M raw relations, 225M unique.
TD=110 produced a 16.6M matrix.

mfb0=59 doesn't seem...
Forum: CADO-NFS 2020-08-06, 14:24
Replies: 6
Views: 312
Posted By charybdis
Yes, this looks like running out of memory. By...

Yes, this looks like running out of memory. By default CADO runs one dependency per thread which makes the square root very memory-intensive.

Try adding a line
tasks.sqrt.threads = 1
to your...
Forum: CADO-NFS 2020-08-04, 02:19
Replies: 123
Views: 3,655
Posted By charybdis
Decided to finally try and figure out what's...

Decided to finally try and figure out what's actually going on...
If I'm understanding the documentation correctly, lambda applies to the *approximation* of the size of the cofactor, based on the...
Forum: CADO-NFS 2020-08-03, 23:28
Replies: 123
Views: 3,655
Posted By charybdis
I've just sieved two c179s with parameters...

I've just sieved two c179s with parameters similar to the consensus from this thread.

The first c179 used parameters
tasks.I = 15
tasks.qmin = 20000000
tasks.lim0 = 95000000
tasks.lim1 =...
Forum: Msieve 2020-07-24, 21:04
Replies: 1,964
Views: 98,903
Posted By charybdis
Wow! A short search on a powerful GPU or a...

Wow! A short search on a powerful GPU or a sizeable cluster? I haven't got anywhere near this with over 100 CPU-days of CADO polyselect.
Forum: Msieve 2020-07-24, 00:50
Replies: 1,964
Views: 98,903
Posted By charybdis
I'll do some CADO work with P=1e7, incr=4620. ...

I'll do some CADO work with P=1e7, incr=4620.
Starting at 5e7, going up to at least 10e7 but probably further.
Forum: Factoring 2020-07-19, 13:56
Replies: 1,810
Views: 123,136
Posted By charybdis
Aha thanks, should have checked further back in...

Aha thanks, should have checked further back in the thread. Has anyone informed Tom about this?
Forum: Factoring 2020-07-18, 18:19
Replies: 1,810
Views: 123,136
Posted By charybdis
What's going on with 7-3_361? It is still...

What's going on with 7-3_361? It is still unfactored in factordb, and it hasn't been removed from the ECM server, but it doesn't appear on Tom Womack's reservation page. Was a factor reported there...
Forum: Msieve 2020-07-11, 22:50
Replies: 170
Views: 21,936
Posted By charybdis
c172

Cofactor of Homogeneous Cunningham 10+9_610L:

n:...
Forum: Msieve 2020-07-01, 18:20
Replies: 1,964
Views: 98,903
Posted By charybdis
A better one: n:...

A better one:

n: 525192933198425310942568096373679376573022392355599200733494017859956132656856970821636003559353551074362384941717314333715490580942355722743279047483667544381553532051041
skew:...
Forum: CADO-NFS 2020-06-29, 01:32
Replies: 15
Views: 1,499
Posted By charybdis
Here are a couple better polys for 86^131-1: ...

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

n:...
Showing results 1 to 25 of 93

 
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