Reserved for MF - Sequence 3408 - Page 4

RichD · 2013-08-13, 05:16

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

prgamma10 · 2013-08-13, 06:26

GNFS 155 job takes 5-6 weeks on my computer, and a full t50 takes 9 days on the same machine.

prgamma10 · 2013-08-14, 08:54

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.

RichD · 2013-08-14, 14:03

This will most likely be a team sieve.

Passing through 5240 @ 43e6
(total of 6540 @ 43e6)
Switching a core to 11e7.

RichD · 2013-08-14, 14:11

(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?

prgamma10 · 2013-08-14, 15:52

(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.

RichD · 2013-08-14, 22:08

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.

prgamma10 · 2013-08-15, 16:31

Running P-1 @ 1e10...

prgamma10 · 2013-08-15, 19:37

Quote:

Originally Posted by prgamma10

Running P-1 @ 1e10...

No factor.

RichD · 2013-08-16, 17:58

2500 @ 11e7 - nothing.

We got a good poly thanks to firejuggler so it's time to sieve this number.

RichD · 2013-08-27, 16:54

2 * 3^2 * 12637 * c153

-pm1 3e9 - nothing

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

2013-08-27, 16:54	#44
RichD Sep 2008 Kansas 110111101000₂ Posts	c153 @ i1312 2 * 3^2 * 12637 * c153 -pm1 3e9 - nothing

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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

2013-08-14, 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, 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...

2013-08-16, 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.