Best msieve poly scores - Page 10

Max0526 · 2018-03-04, 15:12

One of lorgix's polys after many transformations (the last one was root-opt in CADO):

Code:

Y0: -157239059444074186705052141874
Y1: 321544603785103
c0: -19745790009387899868071343903014080
c1: 5676862952995287028684140823968
c2: 191509051171781641885727
c3: -1326424933483776978
c4: -62345591215
c5: 44850
skew: 3182598.19873
# lognorm 46.54, E 39.08, alpha -7.46 (proj -1.75), 5 real roots
# MurphyE = 6.51361924e-12

Max0526 · 2018-03-06, 00:47

A flare caught by swellman (http://mersenneforum.org/showpost.ph...&postcount=258), scaled (c5-->4*c5, Y1-->2*Y1), and run through root-opt in msieve and CADO (http://mersenneforum.org/showpost.ph...&postcount=277).

Kudos to VBCurtis for extensive test-sieving and playing with parameters!

Code:

n: 270190311360611008737597207914785628626394817649241238889983182977892667778914595601256771211961749590172206975699662088722691166582226058852847451219554336976835348606797148840109621091833378801
Y0: -46886185235594194332674628035591832985
Y1: 2261273527557887062
c0: 21723798235313825239630898066777328683391747732
c1: 2115241358681729821859927675022989718073
c2: 13959248941241170772739699872412
c3: -1257377794814468498747909
c4: -1186955160520804
c5: 4769856
skew: 126970960.11264
# lognorm 61.86, E 53.81, alpha -8.05 (proj -1.82), 5 real roots
# MurphyE = 1.02050678e-14
rlim: 400000000
alim: 268000000
lpbr: 33
lpba: 33
mfbr: 65
mfba: 95
rlambda: 2.7
alambda: 3.7

swellman · 2018-03-08, 20:28

Recently ran some poly searches on C175_142_130, a xyyx composite cofactor remaining after yoyo@Home found a p58. Got a lucky flare, and not even Max’s magic could improve it. Further searching at higher intervals proved counterproductive.

Code:

n: 3171216243151117801908173361492419424469848131145041418417259189075751201799682950004775077511748490405838541982866091245947586330479250208822861305228458344423005394835803901
# norm 6.395655e-17 alpha -8.120925 e 1.977e-13 rroots 3
skew: 49633275.07
c0: 9609929940331638596779248778613865916710005
c1: 996381179151505999784768789957391292
c2: 2533637203368113953818353275
c3: -2725489679218934591356
c4: -3986795332704
c5: 257040
Y0: -6580289926091694057481430209096398
Y1: 13762098543200293

Max0526 · 2018-03-12, 20:22

cofactor of (79*10^223-7)/9
http://stdkmd.com/nrr/c.cgi?q=87777_223

Code:

# Murphy_E = 6.90209106e-12, selected by Maksym Voznyy
# selected by CADO-NFS; lognorm 45.35, E 39.01, alpha -6.34 (proj -1.85), 5 real roots
n: 176696618789545258059742783708386469363886245300748475462963517648596826349639525253281985708001182616572811058365821851359057292878415516260674476113
Y0: -94792833022501211907764325895
Y1: 44157400136045211191
c0: 140168592759456853760853862922296048
c1: 700462959600169899248891472102
c2: -897312797676111957445809
c3: -419131216511013256
c4: 99175757562
c5: 23040
skew: 2438378.42541

swellman · 2018-03-21, 18:50

Max0526 found a new record for a C177 with a combined score of 1.527e-013.

Code:

Y0: -18032637465214493952643190295486529
Y1: 438537618959093566462
c0: 422350353444455437951948965729548821847680
c1: 90393272761662392398979662338013948
c2: -68988940653139931958652083763
c3: 3266320170348965129009
c4: 215504618168580
c5: 1134000
skew: 17903975.73
size 3.482e-017, alpha -8.170, combined = 1.527e-013 rroots = 5

Max0526 · 2018-03-29, 10:20

Quote:

Originally Posted by Max0526

cofactor of (79*10^223-7)/9
http://stdkmd.com/nrr/c.cgi?q=87777_223

Code:

# Murphy_E = 6.90209106e-12, selected by Maksym Voznyy
# selected by CADO-NFS; lognorm 45.35, E 39.01, alpha -6.34 (proj -1.85), 5 real roots
n: 176696618789545258059742783708386469363886245300748475462963517648596826349639525253281985708001182616572811058365821851359057292878415516260674476113
Y0: -94792833022501211907764325895
Y1: 44157400136045211191
c0: 140168592759456853760853862922296048
c1: 700462959600169899248891472102
c2: -897312797676111957445809
c3: -419131216511013256
c4: 99175757562
c5: 23040
skew: 2438378.42541

Code:

Y0: -94803799203723197783647132408
Y1: 44157400136045211191
c0: -82352530405421499281330205630110345
c1: 1062958997421175038860739754308
c2: -551877237364234611707757
c3: -503439890954362720
c4: 70566643962
c5: 23040
skew: 2462822.07
# size 2.092e-014, alpha -6.340, combined = 6.906e-012 rroots = 5

VBCurtis · 2018-03-29, 16:34

It helps to tell us the size of the input.

Max0526 · 2018-03-29, 16:52

C150

Quote:

Originally Posted by Max0526

Code:

Y0: -94803799203723197783647132408
Y1: 44157400136045211191
c0: -82352530405421499281330205630110345
c1: 1062958997421175038860739754308
c2: -551877237364234611707757
c3: -503439890954362720
c4: 70566643962
c5: 23040
skew: 2462822.07
# size 2.092e-014, alpha -6.340, combined = 6.906e-012 rroots = 5

Max0526 · 2018-05-12, 18:29

Quote:

Originally Posted by unconnected

C161 from 933436:i12438

Code:

# norm 1.875988e-15 alpha -7.356774 e 1.635e-12 rroots 5
n: 42075418469319361786577882404568940519663914935650169658055876434498388967349916303765822791624796814819702293494852089742879577511621679452756289217763075985339
skew: 5830710.21
c0: 98387957822954533977281881142508539870
c1: 82125775307083353990431613580461
c2: -74107802662415361764003368
c3: -36971277990643008822
c4: 2440433745692
c5: 36432
Y0: -16312067662139097981295780823727
Y1: 201668864071293073

The Murphy E value here is wrong. I checked many times by many different methods. Sorry, unconnected.
It should be

Code:

skew: 5843605.30
E: 1.471e-12

Max0526 · 2018-05-12, 20:43

After my quick check, the above C161 still holds a record score, it's just lower according to the current versions of msieve, CADO, and http://myfactors.mooo.com/ (http://www.cownoise.com/).

fivemack · 2018-05-18, 21:55

C189 ( 1.2522e188 from Lucas(2995) ): 2.078e-14 (score from msieve 1.53 SVN 993). This is about half-way through spending 21 million thread-seconds on poly selection.

2018-05-12, 20:43	#109
Max0526 "Max" Jun 2016 Toronto 893₁₀ Posts	C161 score correction After my quick check, the above C161 still holds a record score, it's just lower according to the current versions of msieve, CADO, and http://myfactors.mooo.com/ (http://www.cownoise.com/).

2018-05-18, 21:55	#110
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 7²·131 Posts	C189 ( 1.2522e188 from Lucas(2995) ): 2.078e-14 (score from msieve 1.53 SVN 993). This is about half-way through spending 21 million thread-seconds on poly selection. Last fiddled with by fivemack on 2018-05-18 at 21:56

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VBCurtis "Curtis" Feb 2005 Riverside, CA 12FD₁₆ Posts	It helps to tell us the size of the input.