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Old 2013-08-13, 05:16   #34
RichD
 
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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
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Old 2013-08-13, 06:26   #35
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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
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Old 2013-08-14, 08:54   #36
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Quote:
Originally Posted by prgamma10 View Post
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
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Old 2013-08-14, 14:03   #37
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This will most likely be a team sieve.

Passing through 5240 @ 43e6
(total of 6540 @ 43e6)
Switching a core to 11e7.
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Old 2013-08-14, 14:11   #38
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(Didn't see the second post until now.)

Quote:
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... so I use (GNFS digits - 6)/3 rule.
Is that like a sliding scale as you get up into larger numbers?
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Old 2013-08-14, 15:52   #39
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(English is not my first language)
Quote:
Originally Posted by RichD View Post
This will most likely be a team sieve.
It's just my opinion though.
Quote:
Originally Posted by RichD View Post
(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
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Old 2013-08-14, 22:08   #40
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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.
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Old 2013-08-15, 16:31   #41
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Running P-1 @ 1e10...
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Old 2013-08-15, 19:37   #42
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Quote:
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Running P-1 @ 1e10...
No factor.
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Old 2013-08-16, 17:58   #43
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2500 @ 11e7 - nothing.

We got a good poly thanks to firejuggler so it's time to sieve this number.
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Old 2013-08-27, 16:54   #44
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Default c153 @ i1312

2 * 3^2 * 12637 * c153

-pm1 3e9 - nothing
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