mersenneforum.org Reserved for MF - Sequence 3408
 Register FAQ Search Today's Posts Mark Forums Read

 2013-08-13, 05:16 #34 RichD     Sep 2008 Kansas 23·5·89 Posts There tends to be two flavors floating around. The one I usually follow is the 1/3 GNFS rule. So this number is 155/3 or about 51.67 or a full t50 plus nearly 2/5 of t55, or another 6000 @ 11e7. We are still days, if not weeks, away from poly selection time. Passing through 1150 @ 43e6
 2013-08-13, 06:26 #35 prgamma10     Jan 2013 109 Posts GNFS 155 job takes 5-6 weeks on my computer, and a full t50 takes 9 days on the same machine. Last fiddled with by prgamma10 on 2013-08-13 at 06:32
2013-08-14, 08:54   #36
prgamma10

Jan 2013

109 Posts

Quote:
 Originally Posted by prgamma10 GNFS 155 job takes 5-6 weeks on my computer, and a full t50 takes 9 days on the same machine.
Sorry, it takes about 4 (instead of 5-6) weeks, so I use (GNFS digits - 6)/3 rule.

Last fiddled with by prgamma10 on 2013-08-14 at 08:57

 2013-08-14, 14:03 #37 RichD     Sep 2008 Kansas 23×5×89 Posts This will most likely be a team sieve. Passing through 5240 @ 43e6 (total of 6540 @ 43e6) Switching a core to 11e7.
2013-08-14, 14:11   #38
RichD

Sep 2008
Kansas

23·5·89 Posts

(Didn't see the second post until now.)

Quote:
 Originally Posted by prgamma10 ... so I use (GNFS digits - 6)/3 rule.
Is that like a sliding scale as you get up into larger numbers?

2013-08-14, 15:52   #39
prgamma10

Jan 2013

109 Posts

(English is not my first language)
Quote:
 Originally Posted by RichD This will most likely be a team sieve.
It's just my opinion though.
Quote:
 Originally Posted by RichD (Didn't see the second post until now.) Is that like a sliding scale as you get up into larger numbers?
I use the timing from a GNFS 155 job I ran with the 64-bit siever, then divide it with four to get ECM time.
Because the 64-bit siever brings 2x speedup over its 32-bit counterpart, and each 6 digits added also mean 2x longer job, I think 6 is to be subtracted from the GNFS digits first.

Last fiddled with by prgamma10 on 2013-08-14 at 16:17

 2013-08-14, 22:08 #40 RichD     Sep 2008 Kansas 23·5·89 Posts I understand what you doing. It looks like we are about poly ready. I'll make a request over in the Msieve thread. Another 6285 @ 43e6 - nothing Switching all to 11e7.
 2013-08-15, 16:31 #41 prgamma10     Jan 2013 109 Posts Running P-1 @ 1e10...
2013-08-15, 19:37   #42
prgamma10

Jan 2013

109 Posts

Quote:
 Originally Posted by prgamma10 Running P-1 @ 1e10...
No factor.

 2013-08-16, 17:58 #43 RichD     Sep 2008 Kansas 67508 Posts 2500 @ 11e7 - nothing. We got a good poly thanks to firejuggler so it's time to sieve this number.
 2013-08-27, 16:54 #44 RichD     Sep 2008 Kansas 1101111010002 Posts c153 @ i1312 2 * 3^2 * 12637 * c153 -pm1 3e9 - nothing

 Similar Threads Thread Thread Starter Forum Replies Last Post RichD Aliquot Sequences 535 2021-12-04 01:13 schickel Aliquot Sequences 3149 2021-12-01 00:06 kar_bon Aliquot Sequences 136 2021-10-21 16:17 RichD Aliquot Sequences 14 2013-08-02 17:02 petrw1 Lone Mersenne Hunters 82 2010-01-11 01:57

All times are UTC. The time now is 15:08.

Mon May 16 15:08:22 UTC 2022 up 32 days, 13:09, 2 users, load averages: 1.69, 1.68, 1.57