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Search: Posts Made By: charybdis
Forum: Lone Mersenne Hunters 2020-09-30, 13:26
Replies: 1,674
Views: 139,373
Posted By charybdis
These were all done by NFS, per the Cunningham...

These were all done by NFS, per the Cunningham tables site (https://homes.cerias.purdue.edu/~ssw/cun/oldp/index.html):

1061
1129
991
1193
1151
863
823
1153
Forum: CADO-NFS 2020-09-25, 17:22
Replies: 126
Views: 3,985
Posted By charybdis
110.4M CPU-seconds of sieving, from 30M to 207M,...

110.4M CPU-seconds of sieving, from 30M to 207M, gave:
Fri Sep 25 13:16:07 2020 commencing relation filtering
Fri Sep 25 13:16:07 2020 setting target matrix density to 110.0
...
Fri Sep 25...
Forum: CADO-NFS 2020-09-24, 17:40
Replies: 126
Views: 3,985
Posted By charybdis
Decided to try an early filtering run to get an...

Decided to try an early filtering run to get an idea of how many relations would be needed to build a matrix, and unexpectedly found I already had enough:

Thu Sep 24 13:58:53 2020 Msieve v. 1.54...
Forum: Msieve 2020-09-20, 21:37
Replies: 1,965
Views: 99,464
Posted By charybdis
c183 polys

Here are a few, fresh from the CADO oven:

n:...
Forum: CADO-NFS 2020-09-13, 16:21
Replies: 126
Views: 3,985
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: 126
Views: 3,985
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: 22,238
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: 22,238
Posted By charybdis
c184

Cofactor of HCN 4+3_466:

n:...
Forum: CADO-NFS 2020-09-02, 23:36
Replies: 126
Views: 3,985
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: 126
Views: 3,985
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: 22,238
Posted By charybdis
c183

Cofactor of HCN 10+7_302:

n:...
Forum: CADO-NFS 2020-08-23, 16:22
Replies: 126
Views: 3,985
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: 1,965
Views: 99,464
Posted By charybdis
Here's one: n:...

Here's one:

n: 9536454284838131188510297375465325383144598450008668632355935685754692107419202674411506591342057862756227100567184249373517764331520778025660438418594966383559123819525015791...
Forum: CADO-NFS 2020-08-16, 01:14
Replies: 126
Views: 3,985
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: 126
Views: 3,985
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: 126
Views: 3,985
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: 3,500
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: 126
Views: 3,985
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: 339
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: 126
Views: 3,985
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: 126
Views: 3,985
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: 1,965
Views: 99,464
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: 1,965
Views: 99,464
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: 123,609
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: 123,609
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...
Showing results 1 to 25 of 96

 
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