Polynomial Request Thread - Page 11

VBCurtis · 2013-08-18, 21:58

Quote:

Originally Posted by lorgix

I'm taking a whack at C169_141_71 as well. Starting from 60M, don't know how long I'll let it run.

Did anyone find a poly for (5591^61-1)/((5591-1)*16556099215542617537*743213379283195327995487*11686924821525596917649777)
?

I have polys for the other candidates I posted.

I also have a bunch of GNFS-candidates (p^q-1) in the 160s. I'm working on pretesting them.

I ran a half-day on this number back in July, finding a 1.71e-12 score; I don't know why I aborted the search, nor why I didn't post even this weak poly. We'll get something good for it this week.

firejuggler · 2013-08-19, 04:37

another poly for swellman C169 :

Code:

R0: -70574329567623593855850350397599
R1: 319115713422217939
A0: 209723292287328832289802943774706861280
A1: 598429061904895552641271174461560
A2: -4062997052989133800994001071
A3: -4271517584968935687318
A4: 5799959550341004
A5: 700939512
skew 899896.26, size 1.358e-016, alpha -7.181, combined = 3.349e-013 rroots = 5

Not very good,I know.

wombatman · 2013-08-19, 13:18

Here's an initial hit for Lorgix's C157:

Code:

expecting poly E from 1.99e-012 to > 2.29e-012
R0: -754734928404993486930393168259
R1: 43285768764248873
A0: 4802110579359003727584901710197368440
A1: -85570950573115301637711491765378
A2: -99931221296503445803925939
A3: 135339915234481955812
A4: 31283765611140
A5: 20077200
skew 1126185.69, size 2.219e-015, alpha -7.919, combined = 1.782e-012 rroots = 3

firejuggler · 2013-08-19, 21:12

Lorgix C157

Code:

R0: -1103437414754847615838977449859
R1: 55750041186014801
A0: 873086791320246604576954052331292964
A1: -6423816204639220626317306638268
A2: 15482888406301730540743393
A3: 18367616204405016272
A4: -8257072567026
A5: 3005640
skew 1118845.74, size 2.482e-015, alpha -6.748, combined = 1.942e-012 rroots = 1

swellman · 2013-08-19, 22:17

Many thanks for all the GPU brought to bear on this latest C169. This stuff is really impressive.

I'll run some test sieving this weekend, but until then please keep those polys coming (if you're still searching that is).

And if anyone needs assistance on a non-GPU task, just drop me a line. I'm here to help.

firejuggler · 2013-08-19, 22:23

Run 2014's NY marathon and give me all the glory swellman, that's all I ask..

swellman · 2013-08-19, 22:36

Sure, no problem, as long as I can use a Segway...

lorgix · 2013-08-20, 07:57

Quote:

Originally Posted by swellman

Many thanks for all the GPU brought to bear on this latest C169. This stuff is really impressive.

I'll run some test sieving this weekend, but until then please keep those polys coming (if you're still searching that is).

And if anyone needs assistance on a non-GPU task, just drop me a line. I'm here to help.

I ran stage1 over leading coeff 60M to 61.434M. That took 21hrs.
Size optimization is moving (leading coeff) at about 10000/hour. I'm using stage2_norm=4e22.
If I let it finish I should have almost 3000 candidates to sort before running -npr on some of them.

VBCurtis · 2013-08-21, 00:51

My best for the last C157 is 1.84:

Code:

 n: (5591^61-1)/((5591-1)*16556099215542617537*743213379283195327995487*11686924821525596917649777)
R0: -942530367041324355849999977433
R1: 66386936784413669
A0: -11627136426338468347417478381938863430
A1: 31537335140191737468233407352821
A2: 55719258620543025550987018
A3: -58361329266411186886
A4: -34306254782868
A5: 6609960
skew 1395583.72, size 2.337e-015, alpha -6.965, combined = 1.845e-012 rroots = 5

This was 2 days on the GPU, and ends my search on this number.

wombatman · 2013-08-21, 13:34

My last best for the C157 is:

Code:

R0: -1102225542723473838562347398326
R1: 46997859610529773
A0: -58978494067576752313653893703695131059
A1: 69333563221774646199876658034895
A2: 169011075619257748542422093
A3: -2025152247490881835
A4: -20641467903774
A5: 3022200
skew 2469855.09, size 2.244e-015, alpha -7.219, combined = 1.797e-012 rroots = 3

Looks like the 1.942e-12 is the best.

swellman · 2013-08-22, 21:30

Quote:

Originally Posted by lorgix

I ran stage1 over leading coeff 60M to 61.434M. That took 21hrs.
Size optimization is moving (leading coeff) at about 10000/hour. I'm using stage2_norm=4e22.
If I let it finish I should have almost 3000 candidates to sort before running -npr on some of them.

Did any good polys fall out? Again my thanks for the help.

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2013-08-19, 22:17	#115
swellman Jun 2012 2²×13×59 Posts	Many thanks for all the GPU brought to bear on this latest C169. This stuff is really impressive. I'll run some test sieving this weekend, but until then please keep those polys coming (if you're still searching that is). And if anyone needs assistance on a non-GPU task, just drop me a line. I'm here to help.

2013-08-19, 22:23	#116
firejuggler Apr 2010 Over the rainbow 2600₁₀ Posts	Run 2014's NY marathon and give me all the glory swellman, that's all I ask..

2013-08-19, 22:36	#117
swellman Jun 2012 2²×13×59 Posts	Sure, no problem, as long as I can use a Segway...