Sieving discussion thread - Page 13

pacionet · 2007-02-25, 21:12

n=500,000
range=0-50G
sieving depth= 68.2 T
candidates= 20,513,895
rate= 1 k every 0.7 seconds

pacionet · 2007-03-06, 20:38

n=500,000
range= 0-50G
sieving depth= 89.0 T
candidates= 20,176,923
rate= 1 k every 1.2 seconds

pacionet · 2007-03-07, 18:00

From today, cipher replaces me in sieving range 0-50G, n=500,000.

I sent him the current output files.

He can run sieve with more powerful hardware than mine.

MooMoo2 · 2007-03-07, 18:19

50G-208G is now complete to 1200T

KEP · 2007-03-07, 20:06

Quote:

Originally Posted by MooooMoo

50G-208G is now complete to 1200T

Well that's good news, how about some distributed sieving, is that nearing possible? Also now you're at 1200 T, how many candidates are you having left?

pacionet · 2007-03-07, 20:39

MooMooo, why don't you start a poll to choose the next exponent after n=500,000 ?
Such a way we can start sieving also that exponent.

MooMoo2 · 2007-03-07, 21:28

Quote:

Originally Posted by KEP

Well that's good news, how about some distributed sieving, is that nearing possible? Also now you're at 1200 T, how many candidates are you having left?

About 54.5 million, which means that there about 345 candidates per M. There won't be any distributed sieving for this range, since I can get it close (or at) the optimal sieve depth after the twin is found for n=333333 and after 1-50G is complete.

1-50G will be made available for distributed sieving after it gets to a reasonably high limit (1P, maybe?). That's because 1-50G will be released immediately after the 100,000 digit twin is found.

pacionet,

We'll be choosing the next n after we find a twin for n=333,333. Finding a twin for n=500,000 is expected to take more than a year, so there'll be enough time to sieve the next exponent.

Skligmund · 2007-03-08, 02:43

Yeah, cause by then, we may want to look upwards of like 1,000,000. My C2D does a 710,000 LLR in about 7:15. In a couple years, this will not be considered anywhere near abnormal. And with Quad Core CPU's coming on as a somewhat standard now, this is going to speed things up a lot.

As for sieving, I have 2GB of RAM now. not that I felt I needed more RAM, but I think 2 GB is the 1 GB of 2005, everybody should have it.

pacionet · 2007-03-08, 19:55

Cipher, don't forget to post here , some times, the progress of your sieve.
(or if you want to stop for any reasons...).

gribozavr · 2007-03-08, 22:32

If you uploaded the data file to sendspace, I could download and store it for backup purposes.

cipher · 2007-03-09, 08:02

I will upload the Data for n=500000 at 100T 200T and so on.. so you can keep a backup girbozavr

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
S9 and general sieving discussion	Lennart	Conjectures 'R Us	31	2014-09-14 15:14
Sieving discussion thread	philmoore	Five or Bust - The Dual Sierpinski Problem	66	2010-02-10 14:34
Combined sieving discussion	ltd	Prime Sierpinski Project	76	2008-07-25 11:44
Sieving Discussion	ltd	Prime Sierpinski Project	26	2005-11-01 07:45
Sieving Discussion	R.D. Silverman	Factoring	7	2005-09-30 12:57

2007-02-25, 21:12	#133
pacionet Oct 2005 Italy 3×113 Posts	n=500,000 range=0-50G sieving depth= 68.2 T candidates= 20,513,895 rate= 1 k every 0.7 seconds

2007-03-06, 20:38	#134
pacionet Oct 2005 Italy 3×113 Posts	n=500,000 range= 0-50G sieving depth= 89.0 T candidates= 20,176,923 rate= 1 k every 1.2 seconds

2007-03-07, 18:00	#135
pacionet Oct 2005 Italy 3×113 Posts	From today, cipher replaces me in sieving range 0-50G, n=500,000. I sent him the current output files. He can run sieve with more powerful hardware than mine.

2007-03-07, 18:19	#136
MooMoo2 "Michael Kwok" Mar 2006 1,181 Posts	50G-208G is now complete to 1200T

2007-03-07, 20:39	#138
pacionet Oct 2005 Italy 3×113 Posts	MooMooo, why don't you start a poll to choose the next exponent after n=500,000 ? Such a way we can start sieving also that exponent.

2007-03-08, 02:43	#140
Skligmund Dec 2006 Anchorage, Alaska 4E₁₆ Posts	Yeah, cause by then, we may want to look upwards of like 1,000,000. My C2D does a 710,000 LLR in about 7:15. In a couple years, this will not be considered anywhere near abnormal. And with Quad Core CPU's coming on as a somewhat standard now, this is going to speed things up a lot. As for sieving, I have 2GB of RAM now. not that I felt I needed more RAM, but I think 2 GB is the 1 GB of 2005, everybody should have it.

2007-03-08, 19:55	#141
pacionet Oct 2005 Italy 101010011₂ Posts	Cipher, don't forget to post here , some times, the progress of your sieve. (or if you want to stop for any reasons...).

2007-03-08, 22:32	#142
gribozavr Mar 2005 Internet; Ukraine, Kiev 11·37 Posts	If you uploaded the data file to sendspace, I could download and store it for backup purposes.

2007-03-09, 08:02	#143
cipher Feb 2007 211 Posts	I will upload the Data for n=500000 at 100T 200T and so on.. so you can keep a backup girbozavr