Sieve after 194000?

Sloth · 2006-04-27, 16:09

So what happens afer we sieve up to 194000? Do we continue the combined sieve to fill in between 198000 and 246000 or is it back to the non-combined dat file?

Is the ultimate goal to sieve to 1000000?

S.

hhh · 2006-04-28, 09:58

194000 is a totally arbitrary limit; it's just that somebody has drilled a hole there and done a range. Once this threshold passed, we will just continue as usual. The final goal is to fill the complete range up to the point where Sob started combined sieving; then, we might restart sieving alone, but that's a matter of years.
Yours H.

Brucifer · 2006-04-28, 16:45

Quote:

Originally Posted by hhh

194000 is a totally arbitrary limit; it's just that somebody has drilled a hole there and done a range. Once this threshold passed, we will just continue as usual. The final goal is to fill the complete range up to the point where Sob started combined sieving; then, we might restart sieving alone, but that's a matter of years.
Yours H.

Could you fill in some range numbers please, like for instance where did Sob start combined sieving that you mention above? Where is Sob complete, and we are not? And such like stuff... :)

Bruce

Greenbank · 2006-04-28, 17:27

This is the factor plot for SoB (it's a little old):-

http://www.free-dc.org/forum/attachm...3&d=1129384592

The grey (and green) dots were found with a .dat file that stopped at 20M (the grey dots > 20m are factrange.txt). These need to be resieved (combined) with PSP.

The blue dots represent the full SoB 991->50M .dat file. These ranges do not need to be combined sieved with PSP.

So there's only 25T below 720T that will not require combined sieving. Above 720T there's probably only 50T that hasn't been sieved with the 991->50M dat so PSP will go back to its own .dat file then.

SoB has only 30T or so to go to 2^50 (1125T), this should be done in the next month or two.

VJS · 2006-05-01, 16:38

Sob didn't start using the 991-50M dat until about 500T, where you start to see a few rare occurances. At about 750T the 991-50M is the commonly used dat.

So bascially the best move is to continue from the lowest p upwards with the combined dat.

You can look at this thread to see what was done with what...

http://www.free-dc.org/forum/showthread.php?t=2698

Brucifer has already taken care of some of the double checked ranges. So basically we are good to go until at least 300T without issue.

2006-04-27, 16:09	#1
Sloth Mar 2006 5E₁₆ Posts	Sieve after 194000? So what happens afer we sieve up to 194000? Do we continue the combined sieve to fill in between 198000 and 246000 or is it back to the non-combined dat file? Is the ultimate goal to sieve to 1000000? S.

2006-05-01, 16:38	#5
VJS Dec 2004 13×23 Posts	Sob didn't start using the 991-50M dat until about 500T, where you start to see a few rare occurances. At about 750T the 991-50M is the commonly used dat. So bascially the best move is to continue from the lowest p upwards with the combined dat. You can look at this thread to see what was done with what... http://www.free-dc.org/forum/showthread.php?t=2698 Brucifer has already taken care of some of the double checked ranges. So basically we are good to go until at least 300T without issue. Last fiddled with by VJS on 2006-05-01 at 16:40

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2006-04-28, 09:58	#2
hhh Jun 2005 373 Posts	194000 is a totally arbitrary limit; it's just that somebody has drilled a hole there and done a range. Once this threshold passed, we will just continue as usual. The final goal is to fill the complete range up to the point where Sob started combined sieving; then, we might restart sieving alone, but that's a matter of years. Yours H.

2006-04-28, 17:27	#4
Greenbank Jul 2005 110000010₂ Posts	This is the factor plot for SoB (it's a little old):- http://www.free-dc.org/forum/attachm...3&d=1129384592 The grey (and green) dots were found with a .dat file that stopped at 20M (the grey dots > 20m are factrange.txt). These need to be resieved (combined) with PSP. The blue dots represent the full SoB 991->50M .dat file. These ranges do not need to be combined sieved with PSP. So there's only 25T below 720T that will not require combined sieving. Above 720T there's probably only 50T that hasn't been sieved with the 991->50M dat so PSP will go back to its own .dat file then. SoB has only 30T or so to go to 2^50 (1125T), this should be done in the next month or two.