NFS results and reservations - Page 28

swellman · 2016-08-10, 21:51

Quote:

Originally Posted by swellman

Ryan is factoring the following with SNFS, results expected shortly:

C198_137_94

fivemack · 2016-08-13, 06:49

Code:

Sat Aug 13 02:26:55 2016  p61 factor: 7735987147519318624839510981079430829143223195128011295512729
Sat Aug 13 02:26:55 2016  p77 factor: 14688403728296858930981662389910211018119354413523924862389408987434590843413
Sat Aug 13 02:26:55 2016  p113 factor: 15520123623922979584713340846816168408307429199090705204640304729590137191186704405418971259030649524396490642841

See http://www.mersenneforum.org/showpos...postcount=1251

fivemack · 2016-08-13, 06:56

Code:

Sat Aug 13 07:35:33 2016  p68 factor: 16498007491231397617819132099776899761006980796039764770714612895031
Sat Aug 13 07:35:33 2016  p106 factor: 3735129068673040871384996903865931229299849025273655724451152937607501414591717059056752549905585373099527

81 wall-clock hours on GTX970 for polynomial selection phase 1, 6.5 hours on one thread i7/5820K for remaining polynomial selection phases, 6 wall-clock hours on 12 threads i7/5820K for trial sieving, 9340 thread-hours on i7/4930K and i7/5820K for the sieving, 83 wall-clock hours on i7/5820K for linear algebra.

All my own resources; elapsed time 26 Jun 17:41 start of GPU polsel -> 13 Aug 7:35 factors appeared. Log attached.

pinhodecarlos · 2016-08-30, 14:54

XYYXF 139,122 factored. Sieved by NFS@Home, LA by Greg.

http://pastebin.com/hzY3x80K

pinhodecarlos · 2016-09-01, 08:27

Sieved by NFS@Home, LA by Greg.

http://pastebin.com/GkJkM310

swellman · 2016-09-03, 17:04

Ryan P has started working on C307_149_120 via some ECM/SNFS.

XYYXF · 2016-09-03, 20:09

C307_149_120 has only 9k@850M. Way more to do.

swellman · 2016-09-03, 21:10

Per Ryan:

"24K curves at B1=85e7 turned up nothing. Going to fire off another 24K curves at B1=76e8."

He will undoubtedly run a lot of ECM - say nearly t75 - before attempting NFS.

fivemack · 2016-09-26, 09:16

http://mersenneforum.org/showpost.ph...postcount=1426

(NFS@home, Tom Womack LA)

swellman · 2016-10-08, 13:57

Ryan finally felled the mighty giant!

Code:

p84 factor:
293788890676116516239699954154352752959615999528045958937859903779529372719704445247
p216 factor:
494328911295260960761039848144730159877854767380296381278714967291037259140272069377026596772059422972840718987107358123779986210095253859216978646125815613672715568529053454469024282645954500864817000669077968856391

SNFS using a septic, took a few (3-4) months to postprocess. Sieving seemed to go quickly, though I'm trying to get the log file from Ryan for posting.

swellman · 2016-10-18, 23:44

Attached is the log file for C300_141_133 (courtesy of Ryan Propper) for those interested.

2016-08-30, 14:54	#301
pinhodecarlos "Carlos Pinho" Oct 2011 Milton Keynes, UK 1353₁₆ Posts	XYYXF 139,122 (C286_139_122) XYYXF 139,122 factored. Sieved by NFS@Home, LA by Greg. http://pastebin.com/hzY3x80K Last fiddled with by pinhodecarlos on 2016-08-30 at 14:57

2016-09-01, 08:27	#302
pinhodecarlos "Carlos Pinho" Oct 2011 Milton Keynes, UK 4947₁₀ Posts	XYYXF 147,136 (C197_147_136) factored Sieved by NFS@Home, LA by Greg. http://pastebin.com/GkJkM310 Last fiddled with by pinhodecarlos on 2016-09-01 at 08:27

2016-09-03, 17:04	#303
swellman Jun 2012 2²×13×59 Posts	C307_149_120 Ryan P has started working on C307_149_120 via some ECM/SNFS.

2016-09-26, 09:16	#306
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 7²·131 Posts	C275_150_116 done http://mersenneforum.org/showpost.ph...postcount=1426 (NFS@home, Tom Womack LA)

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2016-09-03, 20:09	#304
XYYXF Jan 2005 Minsk, Belarus 2⁴·5² Posts	C307_149_120 has only 9k@850M. Way more to do.

2016-09-03, 21:10	#305
swellman Jun 2012 2²×13×59 Posts	Per Ryan: "24K curves at B1=85e7 turned up nothing. Going to fire off another 24K curves at B1=76e8." He will undoubtedly run a lot of ECM - say nearly t75 - before attempting NFS.