Polynomial Request Thread - Page 177

Gimarel · 2020-07-25, 08:36

Quote:

Originally Posted by charybdis

Wow! A short search on a powerful GPU or a sizeable cluster? I haven't got anywhere near this with over 100 CPU-days of CADO polyselect.

2:50 h on a GeForce RTX 2060 SUPER for msieve stage1, about a minute for CADO sizeopt (one CPU core) and 15 minutes msieve rootsieve (one CPU core).

Max0526 · 2020-07-25, 14:55

Quote:

Originally Posted by Gimarel

2:50 h on a GeForce RTX 2060 SUPER for msieve stage1, about a minute for CADO sizeopt (one CPU core) and 15 minutes msieve rootsieve (one CPU core).

Do you still have a list of polys before and after CADO sizeopt? Could you please post both here or send them via PM? I would really appreciate it.

Gimarel · 2020-07-25, 15:11

Quote:

Originally Posted by Max0526

Do you still have a list of polys before and after CADO sizeopt? Could you please post both here or send them via PM? I would really appreciate it.

Sure.

Max0526 · 2020-07-25, 15:12

Quote:

Originally Posted by Gimarel

Sure.

Got them, thank you so much!

firejuggler · 2020-07-26, 06:20

after a bit more research I got

Code:

R0: -1920577079370766231451080579993303167643
R1: 7198119206790157598539
A0: 48963202151838291997191920906106414035870578483321920
A1: 15962432053739009981923803864791233157279400
A2: -39902032878364271160825026567309958
A3: 1636410175046069624283101
A4: 2836113364691978
A5: 79464
skew 4080146910.62, size 8.834e-020, alpha -9.291, combined = 3.748e-015 rroots = 5

found with msieve

Max0526 · 2020-07-26, 14:17

Quote:

Originally Posted by firejuggler

after a bit more research I got

Code:

R0: -1920577079370766231451080579993303167643
R1: 7198119206790157598539
A0: 48963202151838291997191920906106414035870578483321920
A1: 15962432053739009981923803864791233157279400
A2: -39902032878364271160825026567309958
A3: 1636410175046069624283101
A4: 2836113364691978
A5: 79464
skew 4080146910.62, size 8.834e-020, alpha -9.291, combined = 3.748e-015 rroots = 5

found with msieve

Could you please re-run this poly from *.fb file in msieve, firejuggler?
cownoise hangs (happens sometimes) and my msieve shows:

Code:

R0: -1920577079370766231451080579993303167643
R1: 7198119206790157598539
A0: 48963202151838291997191920906106414035870578483321920
A1: 15962432053739009981923803864791233157279400
A2: -39902032878364271160825026567309958
A3: 1636410175046069624283101
A4: 2836113364691978
A5: 79464
skew 4080146910.62, size 7.305e-20, alpha -9.291, combined = 3.345e-15 rroots = 5

The poly spins up a bit in msieve:

Code:

R0: -1920577079647029485154388698992937301601
R1: 14396238413580315197078
A0: 6036462807416061118564277686806498850609731641954490
A1: 4757974192680872290074455033009654034157687
A2: -20032713902099942708364253462839066
A3: 1202181455517415601009997
A4: 5641728508165876
A5: 317856
skew 2045819998.81, size 7.344e-20, alpha -9.291, combined = 3.370e-15 rroots = 5

Thank you for the search, firejuggler!

firejuggler · 2020-07-26, 14:43

Yes indeed, I do not know why it shwed that score. I intend to got upto 100k if you can wait a few hours more. (currently at 90k)

kurtb · 2020-07-26, 16:33

I tested the exceptionally good files.
The cpu-times are close to each other.
The poly-file from post 1931 (Gimarel/Max: skew: 50335474.00; size 8.799e-20; alpha -8.773, combined = 3.886e-15 ...)
clearly gives the most yields/1q.

parms: 16e; .lim ~ 450M; q-range: 50M - 425M; lpb. 33/33
target: 1050M r.rels; ~ 740M unique rels; matrix 45M - 49M;
Many thanks for the valuable preparatory work
Kurt

richs · 2020-08-17, 03:11

Greetings,

Any help that folks can provide in finding a poly for the C175 of of Aliquot sequence 829332 i3694 would be greatly appreciated. The composite has been ecm'ed to t55.

Code:

9536454284838131188510297375465325383144598450008668632355935685754692107419202674411506591342057862756227100567184249373517764331520778025660438418594966383559123819525015791

I am running a CPU poly search on this number for coefficients up to 1,500 using msieve through YAFU, and my intention is to use NFS@Home for sieving once a suitable poly is found.

Thanks very much!

Rich

charybdis · 2020-08-17, 15:58

Quote:

Originally Posted by richs

Any help that folks can provide in finding a poly for the C175 of of Aliquot sequence 829332 i3694 would be greatly appreciated. The composite has been ecm'ed to t55.

Here's one:

Code:

n: 9536454284838131188510297375465325383144598450008668632355935685754692107419202674411506591342057862756227100567184249373517764331520778025660438418594966383559123819525015791
skew: 14304585.632
c0: -104095093676364159615847990766077010073192
c1: 25055327231751104274542314131742898
c2: -1408958866126997314833376323
c3: -346849770669456594472
c4: 758567604484
c5: 357630
Y0: -7676911447119084940077337959740963
Y1: 171202251896878066475687

Cownoise score is 1.792e-13.

firejuggler · 2020-08-17, 16:15

I will work on this too.

2020-07-26, 16:33	#1944
kurtb "Beschorner Kurt" Jul 2016 Germany 2²·5 Posts	R337/c202 I tested the exceptionally good files. The cpu-times are close to each other. The poly-file from post 1931 (Gimarel/Max: skew: 50335474.00; size 8.799e-20; alpha -8.773, combined = 3.886e-15 ...) clearly gives the most yields/1q. parms: 16e; .lim ~ 450M; q-range: 50M - 425M; lpb. 33/33 target: 1050M r.rels; ~ 740M unique rels; matrix 45M - 49M; Many thanks for the valuable preparatory work Kurt

2020-08-17, 03:11	#1945
richs "Rich" Aug 2002 Benicia, California 2²·3³·11 Posts	Greetings, Any help that folks can provide in finding a poly for the C175 of of Aliquot sequence 829332 i3694 would be greatly appreciated. The composite has been ecm'ed to t55. Code: 9536454284838131188510297375465325383144598450008668632355935685754692107419202674411506591342057862756227100567184249373517764331520778025660438418594966383559123819525015791 I am running a CPU poly search on this number for coefficients up to 1,500 using msieve through YAFU, and my intention is to use NFS@Home for sieving once a suitable poly is found. Thanks very much! Rich

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2020-07-26, 14:43	#1943
firejuggler Apr 2010 Over the rainbow 2²×17×37 Posts	Yes indeed, I do not know why it shwed that score. I intend to got upto 100k if you can wait a few hours more. (currently at 90k)

2020-08-17, 16:15	#1947
firejuggler Apr 2010 Over the rainbow 2²×17×37 Posts	I will work on this too.