Fast Breeding (guru management) - Page 195

RichD · 2019-08-31, 15:34

QUEUED AS 861001_43m1

C195 from the OPN t600 file.

Code:

n: 159127133191384350693029677768193897825185980562139373939095414316688864297779645609067677236178350541997912046012839084706207628951462474126181074566179441802632426578534298627453808467833951859
# 861001^43-1, difficulty: 255.21, skewness: 0.10, alpha: 0.00
# cost: 1.23268e+19, est. time: 5869.90 GHz days (not accurate yet!)
skew: 0.103
c6: 861001
c0: -1
Y1: -1
Y0: 350772542793886927343204537158902747027001
type: snfs
rlim: 134000000
alim: 268000000
lpbr: 32
lpba: 32
mfbr: 64
mfba: 64
rlambda: 2.7
alambda: 2.7

Trial sieving 5K blocks.

Code:

swellman · 2019-08-31, 23:02

[QUOTE=jyb;524819]

Quote:

Originally Posted by fivemack

Hmm, no I didn't try that and I obviously should have. I did just now, and it sieves a little bit better with your suggested change (like maybe about 7-8% better). This number has been queued, but it hasn't yet had any work units handed out. It would be possible to remove it and submit the change, if we can get Greg to cancel the work units before anything is handed out. It's not clear to me whether that would be considered worthwhile, given the modest improvement, though other things being equal I would of course prefer to see resources used as efficiently as is practical. I guess I'll have to leave that decision to those who are managing the queue.

Sorry I didn’t read this discussion until now. Seems too late to cancel the job at this point.

RichD · 2019-09-02, 00:38

QUEUED AS 1093_83m1

C226 from the OPN t550 file.
This is a 31/32 hybrid. Aiming for 340M+ raw relations for the sweet spot.

Code:

n: 8406433501385651052898218815912661849870861114455990239955579554793202285835754334573559703674930781840087572815369670825722408354258505987138107135610241355935770478786597221336245870217349664794056780711727639978233231793809
# 1093^83-1, difficulty: 255.24, skewness: 3.21, alpha: 0.00
# cost: 1.2363e+19, est. time: 5887.17 GHz days (not accurate yet!)
skew: 3.209
c6: 1
c0: -1093
Y1: -1
Y0: 3472819946842454999929672205599786452915049
type: snfs
rlim: 67000000
alim: 268000000
lpbr: 31
lpba: 32
mfbr: 62
mfba: 64
rlambda: 2.7
alambda: 2.7

Trial sieving 5K blocks.

Code:

jyb · 2019-09-03, 21:04

QUEUED AS 8p5_750L

SNFS-183.42 (octic) C172 HCN (8+5,750L), ECM to t55. For 14e.

Code:

n: 1909975990808445888146164651697746110657256782726177502109253418492141375907582366875825201072939667405033496001691485372263797728294701331037488347241458060345542219395501
skew: .632456
lss: 0
c8: 625
c7: 1250
c6: -750
c5: -3000
c4: -1200
c3: 1400
c2: 1280
c1: 320
c0: 16
Y1: 167772160000000000000
Y0: -37779229886181038662693
rlim: 134000000
alim: 134000000
lpbr: 31
lpba: 31
mfbr: 62
mfba: 62
rlambda: 2.6
alambda: 2.6

Trial sieving 2K blocks.

Code:

 Q		Yield
---		-----
20M		4920
50M		3712
80M		3111
110M		3905
140M		2704
170M		1842
200M		2453
230M		2347

Recommend sieving special Q on algebraic side, 20M - 180M.

jyb · 2019-09-05, 23:36

QUEUED AS 8m5_323

GNFS-169 HCN (8-5,323), ECM to t55. For 14e.

Code:

n: 2805508796427914255037360705939214673399001082331444900066295441972442478349846511367278839315813248431778686348706217821730342257133494683237153418932837112748827613917
# norm 2.207308e-16 alpha -8.517764 e 4.079e-13 rroots 3
skew: 3320181.95
lss: 0
c0: 3107983816332663489716764282644346833955
c1: 8348264812165077777658321762197493
c2: -3976635630445045594275282714
c3: -2778147931687692151132
c4: -587921316402904
c5: 49729680
Y0: -141344594900900255629319321068734
Y1: 1576525036180535669
rlim: 57200000
alim: 28599999
lpbr: 31
lpba: 31
mfbr: 62
mfba: 93
rlambda: 2.6
alambda: 3.6

Trial sieving 2K blocks.

Code:

 Q		Yield
---		-----
20M		6501
50M		4198
80M		3277
110M		4038
140M		3335
170M		2533
200M		2556
230M		2703

Recommend sieving special Q on algebraic side, 20M - 160M.

fivemack · 2019-09-06, 12:43

I feel I'm rather hogging the 15e queue with Fibonacci numbers; it would cheer me up if some OPN or aliquot candidates came along ... I've seen a 180-digit GNFS go past on 14e, which I'm not sure wouldn't have been better on 15e

RichD · 2019-09-06, 23:27

Thanks to the above comments by fivemack I am seeing remarkable results with degree halving p^17-1 using an octic. I have a handful I will be sending this way, and a few others...

RichD · 2019-09-07, 22:35

QUEUED AS 36441801894643_17m1 in 15e

C211 from the OPN t600 file.
[ a.k.a. Phi_17(Phi_3(Phi_3(Phi_7(1009)/8/29/5077297)/37987)/3/7/112927/8845231)/103/37571 ]
This polynomial has a tenancy to have a higher dup rate.
Sieve on the algebraic side using 15e.

Code:

n: 2499812911243419240642076626786714867217685609627590511738545909628182933081666304271251648917686097317630586577944335995718262639818496501898566835990456703298637610189150663622254409116125408609444604485702077
# 36441801894643^17-1, difficulty: 216.99
lss: 0
skew: 1.0
c8: 1
c7: 1
c6: -7
c5: -6
c4: 15
c3: 10
c2: -10
c1: -4
c0: 1
Y1: -36441801894643
Y0: 1328004925328406144472097450
rlim: 134000000
alim: 134000000
lpbr: 31
lpba: 31
mfbr: 62
mfba: 91
rlambda: 2.7
alambda: 3.7
type: snfs

Trial sieving 5K blocks.

Code:

As reference, the following is what I was looking at using 14e - exact same params.

Code:

jyb · 2019-09-08, 09:22

QUEUED AS 5p3_395

SNFS-220.87 (quartic) C219 HCN (5+3,395), ECM to t55. For 14e.

Code:

n: 177925942221081171048476729824653284468017226670967783773269511287674165798685030581130817502608997519749815654000156430531477673620574070310862469038540391801573075329254352390131781969747229351649290963317092472948801
# 5^395+3^395, difficulty: 220.87, skewness: 1.00, alpha: 1.45
skew: 1.000
c4: 1
c3: -1
c2: 1
c1: -1
c0: 1
Y1: -49269609804781974438694403402127765867
Y0: 16543612251060553497428173841399257071316242218017578125
rlim: 134000000
alim: 134000000
lpbr: 31
lpba: 31
mfbr: 93
mfba: 62
rlambda: 3.6
alambda: 2.6

Trial sieving 2K blocks.

Code:

 Q		Yield
---		-----
40M		3694
70M		3233
100M		3601
130M		3463
160M		3455
190M		3528
220M		3117
250M		3059

Recommend sieving special Q on rational side, 40M - 190M.

RichD · 2019-09-08, 19:47

QUEUED AS 367__261_5m1

C192 from the OPN t800 file.
[ a.k.a. Phi_5(Phi_37(3169)/p32/p45)/5/2103611 ]
P50^5-1

Code:

n: 174346938467523782188091906613195594830136054309824708592502654395976655386569563891444514414841352425633249870397887990677655135301754180566184789641323318446022306276077606598104862221948011
# 36799120636249118806979649347305792642377421012261^5-1, difficulty: 198.26, skewness: 1.00, alpha: 1.45
# cost: 1.2122e+17, est. time: 57.72 GHz days (not accurate yet!)
skew: 1.000
c4: 1
c3: 1
c2: 1
c1: 1
c0: 1
Y1: -1
Y0: 36799120636249118806979649347305792642377421012261
type: snfs
rlim: 33500000
alim: 33500000
lpbr: 29
lpba: 29
mfbr: 58
mfba: 85
rlambda: 2.5
alambda: 3.6

Trial sieving 5K blocks.

Code:

RichD · 2019-09-08, 19:55

QUEUED AS 41284013010997_19m1

C181 from the OPN t600 file.
[ a.k.a. Phi_19(Phi_7(571)/29^2)/11187294290867713/p49 ]
Sieve using 15e on the algebraic side.

Code:

n: 3957398001655282753944485186711245567941320452569719876519416401220948074328977363821740140395282183935876010644281164031099165681244285985948726088393270593094302533645199039113261
# 41284013010997^19-1
# expecting poly E from 7.05e-14 to > 8.11e-14
lss: 0
Y0: -77940521860598739129597342980148836
Y1: 153989893118872459
c0: -127786764984007136287527304462556319622753845
c1: 58516999569952486210672601530331337537
c2: 537579338075189407597519670474
c3: -23222881197220338009083
c4: -85978997376411
c5: 1375920
skew: 77736971.31
# skew 77736971.31, size 1.008e-17, alpha -7.831, combined = 7.112e-14 rroots = 5
type: gnfs
rlim: 268000000
alim: 268000000
lpbr: 32
lpba: 32
mfbr: 64
mfba: 64
rlambda: 2.7
alambda: 2.7

Trial sieving 5K blocks.

Code:

2019-09-06, 12:43	#2140
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 2³×11×73 Posts	Please, more non-Fibonacci 15e jobs! I feel I'm rather hogging the 15e queue with Fibonacci numbers; it would cheer me up if some OPN or aliquot candidates came along ... I've seen a 180-digit GNFS go past on 14e, which I'm not sure wouldn't have been better on 15e

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2019-09-06, 23:27	#2141
RichD Sep 2008 Kansas 2⁶×53 Posts	Thanks to the above comments by fivemack I am seeing remarkable results with degree halving p^17-1 using an octic. I have a handful I will be sending this way, and a few others...