AS C162_3366_2193
 

I’m taking a break from the C180 poly search and working the [url=http://factordb.com/index.php?id=1100000001317977996]C162 from AS 3366[/url] as suggested by [url=https://www.mersenneforum.org/showpost.php?p=521498&postcount=298]RichD[/url].

Searching c5 < 1M with msieveGPU.

C162 poly
 

[CODE]# norm 1.145653e-15 alpha -8.382315 e 1.096e-12 rroots 3
skew: 7372158.31
c0: -846998801840137229439982585532495543205
c1: -3215959590308837739709611536614617
c2: -698525494218151899530981221
c3: 177176278964896024033
c4: 4624252827810
c5: 289800
Y0: -17814431235259850984113559613778
Y1: 322387538059961[/CODE]

Max might spin it higher. The e-score is equal to the best for a C163. Close but no cigar.

I will try 1-2M in an effort to better this score.

C180 Poly
 

Another one to consider. I'll look for a second best above 8.0 in the current dataset.
[CODE]R0: -40921999192277184417577928782016383
R1: 136221062719009057
A0: -3602010748071605943557000077788074061741660
A1: 3733127072442786688868024278630907604
A2: 599212160968227488299132726561
A3: -2463108114996831691226
A4: -650564772400564
A5: 4853160
skew 28878271.72, size 1.310e-17, alpha -7.809, combined = 8.320e-14 rroots = 5[/CODE]

C162 poly
 

[QUOTE=swellman;521779][CODE]# norm 1.145653e-15 alpha -8.382315 e 1.096e-12 rroots 3
skew: 7372158.31
c0: -846998801840137229439982585532495543205
c1: -3215959590308837739709611536614617
c2: -698525494218151899530981221
c3: 177176278964896024033
c4: 4624252827810
c5: 289800
Y0: -17814431235259850984113559613778
Y1: 322387538059961[/CODE]

Max might spin it higher. The e-score is equal to the best for a C163. Close but no cigar.

I will try 1-2M in an effort to better this score.[/QUOTE]

Nothing better found. Maybe Max can spin it up, but I’m done. Unless someone steps forward with more poly searching, I will test sieve it this weekend and add it to the 14e queue.

C180 poly
 

[QUOTE=RichD;521795]Another one to consider. I'll look for a second best above 8.0 in the current dataset.
[CODE]R0: -40921999192277184417577928782016383
R1: 136221062719009057
A0: -3602010748071605943557000077788074061741660
A1: 3733127072442786688868024278630907604
A2: 599212160968227488299132726561
A3: -2463108114996831691226
A4: -650564772400564
A5: 4853160
skew 28878271.72, size 1.310e-17, alpha -7.809, combined = 8.320e-14 rroots = 5[/CODE][/QUOTE]
This one doesn't spin up, sorry.

C162 poly
 

[QUOTE=swellman;521779][CODE]# norm 1.145653e-15 alpha -8.382315 e 1.096e-12 rroots 3
skew: 7372158.31
c0: -846998801840137229439982585532495543205
c1: -3215959590308837739709611536614617
c2: -698525494218151899530981221
c3: 177176278964896024033
c4: 4624252827810
c5: 289800
Y0: -17814431235259850984113559613778
Y1: 322387538059961[/CODE]

Max might spin it higher. The e-score is equal to the best for a C163. Close but no cigar.

I will try 1-2M in an effort to better this score.[/QUOTE]
This one doesn't spin up, sorry. I will rerun it in CADO.

C180 CADO sieve parameters
 

[QUOTE=VBCurtis;521682]Max-
I'll do another CADO run, but I need to know what you searched so I don't repeat your work.[/QUOTE]
Sorry for the delay and thank you for the PM. I only got to 445K with[code]tasks.polyselect.degree = 5
tasks.polyselect.P = 5000000
tasks.polyselect.admax = 2e7
tasks.polyselect.adrange = 1000 # 5e3
tasks.polyselect.incr = 60
tasks.polyselect.nq = 1000
tasks.polyselect.nrkeep = 100[/code]

C180 Poly
 

[QUOTE=RichD;521795]I'll look for a second best above 8.0 in the current dataset.[/QUOTE]

Not even close. The second best is 7.76. I'm done.

[QUOTE=Max0526;521802]Sorry for the delay and thank you for the PM. I only got to 445K with[code]tasks.polyselect.degree = 5
tasks.polyselect.P = 5000000
tasks.polyselect.admax = 2e7
tasks.polyselect.adrange = 1000 # 5e3
tasks.polyselect.incr = 60
tasks.polyselect.nq = 1000
tasks.polyselect.nrkeep = 100[/code][/QUOTE]

I'm pretty sure I can crush the default settings. I just finished a big matrix on my biggest machine, so I'll give CADO 24 threads on this poly select before I start another matrix. I have two sets of settings I wish to try; hopefully I'll have one poly to share tomorrow and another Friday.

C180 poly
 

Thanks very much to Sean, Rich, Max, and Mike for the C180 efforts. I'll wait for Mike's CADO runs and see if Max can spin them up. Then I'll test sieve this weekend and post to 14e.

Rich

[QUOTE=richs;521855]Thanks very much to Sean, Rich, Max, and Mike for the C180 efforts. I'll wait for Mike's CADO runs and see if Max can spin them up. Then I'll test sieve this weekend and post to 14e.

Rich[/QUOTE]

No worries. Keep in mind that’s likely a 15e job.