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2013-10-25, 11:03
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#1 |
"Carlos Pinho"
Oct 2011
Milton Keynes, UK
3·17·97 Posts |
3,766+ (GNFS 215.5)
We lost Syracuse University CPU power
 . How are we going with 3,766+ sieve? Do I need to call the SETI.USA cavalry? Greg, can you post an update on how many wu's are still left to be processed so I can orient the cavalry. Thank you in advance,Carlos Last fiddled with by pinhodecarlos on 2013-10-25 at 11:05 |
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2013-10-29, 00:32
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#2 | |
Jul 2003
So Cal
2×34×13 Posts |
Quote:
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2013-11-26, 10:37
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#3 |
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"Carlos Pinho"
Oct 2011
Milton Keynes, UK
135316 Posts |
Greg, new status please. Thank you.
Looks like Syracuse University is back, I'll see if I can bring up Mumps to the fight for the first place. Last fiddled with by pinhodecarlos on 2013-11-26 at 10:47 |
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2014-03-01, 10:41
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#4 |
"Bo Chen"
Oct 2005
Wuhan,China
101010002 Posts |
It seems like that both the 16e and 16e V5 begin the sieve of 3,697+.
The 16e V5 sieved special q from 110M to 270M for 3,766+, time from 2013-09-10 to 2014-02-25, so it took about 6 month. The 16e also sieved some special q for G3p766, I did not track the process of it. |
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2014-03-04, 20:18
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#5 |
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"Carlos Pinho"
Oct 2011
Milton Keynes, UK
3×17×97 Posts |
Greg, please update us on the progress of 3,766+, is it already in post-processing stage? How long will the LA take (approximation)?
Thank you in advance, Carlos |
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2014-03-04, 20:27
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#6 |
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Jul 2003
So Cal
2·34·13 Posts |
Filtering now. Likely factors in 2-3 weeks.
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2014-03-24, 18:39
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#7 | |
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Jul 2003
So Cal
2×34×13 Posts |
Quote:
Code:
Thu Mar 20 23:13:56 2014 commencing square root phase Thu Mar 20 23:13:56 2014 reading relations for dependency 1 Thu Mar 20 23:14:46 2014 read 47463974 cycles Thu Mar 20 23:26:27 2014 cycles contain 154040574 unique relations Fri Mar 21 00:17:12 2014 read 154040574 relations Fri Mar 21 01:12:22 2014 multiplying 154040574 relations Fri Mar 21 20:05:50 2014 multiply complete, coefficients have about 12547.77 million bits Fri Mar 21 20:11:05 2014 initial square root is modulo 10856647 Sun Mar 23 13:15:31 2014 GCD is 1, no factor found |
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2014-03-24, 18:54
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#8 |
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
224058 Posts |
Sqrt phase never felt the need for a bit of a speedup, until now. ;-)
GNFS sqrts are particularly long-running (compared to SNFS projects). Anyway, a day more or a day less... Not a big deal. 
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2014-03-26, 18:40
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#9 |
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Jul 2003
So Cal
2·34·13 Posts |
Getting even closer...
Code:
Sun Mar 23 13:15:31 2014 reading relations for dependency 2 Sun Mar 23 13:16:25 2014 read 47463286 cycles Sun Mar 23 13:23:15 2014 cycles contain 154046276 unique relations Sun Mar 23 14:14:46 2014 read 154046276 relations Sun Mar 23 15:09:57 2014 multiplying 154046276 relations Mon Mar 24 09:58:08 2014 multiply complete, coefficients have about 12548.23 million bits Mon Mar 24 10:02:52 2014 initial square root is modulo 10863169 Wed Mar 26 03:15:39 2014 found factor: 1643219997305927454467487321521956788712629535384031275052894683382398757857 Last fiddled with by frmky on 2014-03-26 at 18:41 |
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2014-03-26, 18:46
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#10 | |
"Ben"
Feb 2007
3×1,171 Posts |
Quote:
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2014-03-26, 19:16
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#11 |
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
36×13 Posts |
With 2 days per sqrt (...and you just might get a 1, an N, or the same p76 again), it is almost faster to crack the c141 de novo. ;-)
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