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Old 2019-12-13, 20:15   #23
R.D. Silverman
 
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Quote:
Originally Posted by pinhodecarlos View Post
Thought I have seen it a couple of weeks ago whilst crunching for NFS@Home but I might be wrong.
I never saw a discussion, within this forum, about doing polyselect for it. I think,
therefore, that Greg skipped it for the time being because he was lacking a polynomial.
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Old 2019-12-13, 20:16   #24
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Quote:
Originally Posted by R.D. Silverman View Post
I had previously asked about 2,2210M. It is not currently queued on the status page.
I was under the impression that polyselect had been started, but not finished.

I also believe that there was some uncertainty about whether Greg would do it via
GNFS or SNFS.....
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Old 2019-12-14, 15:57   #25
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I’ve reached out to Greg, inviting him to provide clarity on the current Cunningham effort, i.e. what does he need done?

Helping Greg with postprocessing is a worthy effort, but few of us have the resources.

3,748+ c204 needs to be factored sooner or later, but I will help poly search anything that needs it.
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Old 2019-12-15, 06:08   #26
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We still need a poly for 2,1165+. Postprocessing is quite a bit behind, but I will be spending more time on it once the semester ends. Assistance is welcome, but I know few have the resources needed to process numbers of this size. I still need to trial sieve 2,2210M with a quartic.

Last fiddled with by frmky on 2019-12-15 at 06:12
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Old 2019-12-15, 06:44   #27
VBCurtis
 
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Greg-
Every time you come across a matrix 50M or smaller, please offer the job to the forumites here. If we help you out with the smaller jobs, you can use your resources more effectively. There are a fair number of us with 32GB available for NFS postprocessing, and I think <45M matrices fit in 32GB.

Fivemack and I have larger memory machines. I'm willing to solve a ~50M matrix here and there, perhaps 50% of the machine's time.

Let's get to poly select on 2,1165+ before we tackle 3,748+. I have a poly select job running for 3,748+ so I'll post a starter poly in this thread in a few days, but then I'll move to CADO-sextic on 2,1165+; let's start a new thread for that poly select job, our largest ever at C217!
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Old 2019-12-15, 07:04   #28
pinhodecarlos
 
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Greg,

How are you in terms of NFS@Home hard drive space? I’ve not been very active on getting more CPU power to the project due to the post processing backlog.

Also, you might have noticed but from time to time we are invaded by forum spammers. Messages have been hidden but I think you should block their IP.

To all, what about a crowdfunding to build a machine to support Greg? Or can we have one linked to NFS@Home, I wouldn’t be surprised to see members of the project donating to it, I would and know a bunch of guys from teams who also would.

What about adding to the project a progress to the outstanding numbers to finish the "traditional" Cunningham tables. BOINC clients like to see goals, fancy dashboards with progress and target.

Last fiddled with by pinhodecarlos on 2019-12-15 at 07:13
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Old 2019-12-19, 01:09   #29
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Happy to contribute to crowdfunding a machine for Greg

I also have an large ram box (96GB of DDR3) I'd be happy to donate time on if needed.
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Old 2019-12-19, 01:29   #30
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Quote:
Originally Posted by SethTro View Post
Happy to contribute to crowdfunding a machine for Greg

I also have an large ram box (96GB of DDR3) I'd be happy to donate time on if needed.
I'll contribute $$ as well......
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Old 2019-12-21, 05:30   #31
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Two starter polys for this search:
Code:
skew: 1612754820.935
c0: -15785710543643490812034300569590437590020372967056320
c1: -1022393105872336316264569432064984158194312
c2: 39749903650654112463642720863696858
c3: 16087533438069948261616619
c4: -11173173695571450
c5: -699300
Y0: -5203281618676648681525009317910173289861
Y1: 3536871312807027542983093
# MurphyE (Bf=1.718e+10,Bg=8.590e+09,area=3.758e+15) = 2.148e-08
cownoise page failed to produce output for this poly- perhaps skew too big for the code on that page? Perhaps I mis-copied one of the entries.

Second poly, within 1% CADO score:
Code:
skew: 590322320.972
c0: 254296187542172550718950170988018059646220081744806
c1: -153974458868861784614429285301396647814529
c2: -4391618738540816395422318067297962
c3: 972879899893539332054709
c4: 9942505258339816
c5: -373800
Y0: -5640313471170760118089758712356035363930
Y1: 5181604922629172280297721
# MurphyE (Bf=1.718e+10,Bg=8.590e+09,area=3.758e+15) = 2.130e-08
cownoise specs: skew 776399621.29401 score 2.11231105e-15. This score is roughly the record for C205, while the C204 record is ~2.6e-15. This candidate has leading digit 5, so we should expect a poly score closer to the C205 record than C204. Perhaps 2.3x will be the winner.

I ran very small c5 values on CADO: P= 8M, admax 5e5, incr 210, nq 15625.
Next run I'll go from 5e5 to 1e7 with incr = 4620 and the others left the same.

Last fiddled with by VBCurtis on 2019-12-21 at 05:31
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Old 2019-12-24, 02:28   #32
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5e5 to 1e7 completed. Two more polys:
Code:
skew: 407507052.541
c0: -340080570700297136208246368883179322094820923442760
c1: -661607485006321789338341100288452775532669
c2: 17833489320236668360118213777720968
c3: 13848815092115588948893685
c4: 6522460260140136
c5: -39417840
Y0: -2409398962224288260990751307199508691422
Y1: 8925863007105297223360283
# MurphyE (Bf=1.718e+10,Bg=8.590e+09,area=3.758e+15) = 2.088e-08
cownoise: skew 522208007 score 2.026e-15

Code:
skew: 264349446.889
c0: -24116149045009809776165131286924761803079983675456
c1: -1863969620703793308008309043234430725580170
c2: 8866702528854981438988419530280173
c3: 33251724094742703226039933
c4: 103472757015945770
c5: 32109000
Y0: -2780280617094600643880915914184846482367
Y1: 29720208983812827594849491
# MurphyE (Bf=1.718e+10,Bg=8.590e+09,area=3.758e+15) = 2.091e-08
cownoise: skew 438789014 score 2.0696e-15

CADO thinks the first is better than the second, as it uses a "refined" metric.
EDIT: taking 1e7 to 3e7 with incr=4620 next.

Last fiddled with by VBCurtis on 2019-12-24 at 02:29
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Old 2019-12-28, 18:23   #33
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Much better:
Code:
skew: 223545030.629
c0: -28627318333366850185452527271535462489694607735784
c1: -277224350710871782702997119527525387251333
c2: 2264577872606025776538611482924674
c3: 15725063232506961576401273
c4: -43383743770596230
c5: -49267680
Y0: -1849737832054652090401954789111628537346
Y1: 9134512091048863742087477
# MurphyE (Bf=1.718e+10,Bg=8.590e+09,area=3.758e+15) = 2.341e-08
Cownoise: skew 262324663.76154 score 2.47393087e-15

1e7 to 3e7 complete on CADO.
Pausing this poly search for a bit, now that there's a target for others to hit.

Last fiddled with by VBCurtis on 2019-12-28 at 18:23
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