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-   -   Polynomial Request Thread (https://www.mersenneforum.org/showthread.php?t=18368)

VBCurtis 2019-02-02 04:07

Here you go:
[code]# norm 4.484195e-15 alpha -6.934969 e 2.458e-12 rroots 3
skew: 2546092.07
c0: -8768835588049220265199008144516744025
c1: 9322612234610309802087443952138
c2: -9489677603713852011231383
c3: -11214184335240571230
c4: 4044346869516
c5: 581400
Y0: -810893987596943441913005607636
Y1: 4900160628720071
# norm 4.670468e-15 alpha -7.289913 e 2.517e-12 rroots 3
skew: 2971710.70
c0: -23274189821224357309898280156200576505
c1: 10988311336612933471289325784498
c2: -5481397393317645261159383
c3: -12931688786744927070
c4: 3722948949516
c5: 581400
Y0: -810893988138705201024296657396
Y1: 4900160628720071[/code]
Nothing else above 2.42. I stopped the search around 750k.

cubaq 2019-02-02 09:35

thanks....
 
[QUOTE=VBCurtis;507416]Here you go:
………..
[/QUOTE]

Thank You very much.
I'll let You know when I'll be able to estimate the 'gain' in CPU hours, but I'm sure
that it will be significant.
:smile:


cubaq

cubaq 2019-02-03 16:02

Gain estimated
 
[QUOTE=cubaq;507433]Thank You very much.
I'll let You know when I'll be able to estimate the 'gain' in CPU hours, but I'm sure
that it will be significant.
:smile:


cubaq[/QUOTE]



Roughly it will be 10% on sieve and 40 CPU/h for poly, which makes 1,5 week (as Your's number). Many thanks VBCurtis !


cubaq

RichD 2019-02-03 16:49

C193 Poly
 
Nothing better in 6-7M range. Starting 7-8M.

RichD 2019-02-05 07:16

C192 Poly
 
A poor showing for a baseline.
[CODE]N: 218970570796182065698377596097024384788361869332761272840394703510787597605276873474046837687885995912329231998076410885135080521826943850036783229565403944064025633738188802389499489670808641
# expecting poly E from 1.57e-14 to > 1.81e-14
R0: -8763768180866267814454154046601997091
R1: 5694600635597023079
A0: 574156163329278685498991857804374351950616307600
A1: 24886373756899252770738752614152514086548
A2: -217750360527316153216599927538132
A3: -1233016224543585349085285
A4: 3139618375611384
A5: 4235760
skew 266186442.13, size 7.493e-19, alpha -8.806, combined = 1.428e-14 rroots = 5[/CODE]

VBCurtis 2019-02-06 03:00

[QUOTE=fivemack;507246]Would anyone be willing to do some polynomial selection on the following C192
[/QUOTE]
I'll start with 8-10M and pretty tight stage1 settings.
I'll also play with CADO poly select a bit.

firejuggler 2019-02-06 12:14

[QUOTE=fivemack;507246]Would anyone be willing to do some polynomial selection on the following C192

[code]
218970570796182065698377596097024384788361869332761272840394703510787597605276873474046837687885995912329231998076410885135080521826943850036783229565403944064025633738188802389499489670808641
[/code]the cofactor of L1532 Lucas(1532) ?

[/QUOTE]


I have a poly, not a very good one
[code]
R0: -13127120190201762403535270040680542693
R1: 417873635646657851
A0: 3438940956407871850021015202843212812391227384
A1: 585385518639523377505987633684875881518
A2: -37191477927804698396578928919207
A3: 42615428446321646335908
A4: 1059082877695028
A5: 561744
skew 178007175.66, size 7.691e-019, alpha -7.241, combined = 1.446e-014 rroots = 5
[/code]

RichD 2019-02-06 14:27

C192 Poly
 
Forgot to mention, continuing 5-6M.

swellman 2019-02-07 14:10

C193 poly
 
[QUOTE=RichD;507561]Nothing better in 6-7M range. Starting 7-8M.[/QUOTE]

I finished 2.5-3M with nothing better found. Now working 3-4M then I’m out. Will probably take 12+ days to complete on my slow hardware.

RichD 2019-02-08 00:07

C192 Poly
 
A little better one. Still working.
[CODE]R0: -8302167936278551258706873161197445629
R1: 846295155401774699
A0: -1809017460309910485923697635851099149430877216
A1: 458981474197897975974533623670837984486
A2: -27247948624518893242946706740563
A3: -239915561276472416827742
A4: 14054210769006
A5: 5551728
skew 93532660.61, size 8.048e-19, alpha -7.372, combined = 1.460e-14 rroots = 3[/CODE]

VBCurtis 2019-02-09 06:16

650k thread-seconds of CADO produced:
[code]R0: -15620683300607940013784031218421974031
R1: 35139601492224820994484133
A0: 3215262429081057984681198493083824284844918544
A1: 141042476397782167118139352180283950538
A2: -5453144720347281299705156138439
A3: 142385309122759727375947
A4: 877400689838700
A5: 14124600
skew 48217323.83, size 7.759e-19, alpha -8.550, combined = 1.506e-14 rroots = 1[/code]
I ran it through msieve to get a poly score.
Poly select settings, for those curious:
admin 12600 admax 450000 P = 4000000 root-opt on the top 40 hits, with rootopt effort set to 25.
Next time the big CADO box is idle, I'll run 450k-1M.
I think we should strive for 1.6e-14, and be happy (I mean, quit) if anyone finds a 1.65.


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