20131025, 11:03  #1 
"Carlos Pinho"
Oct 2011
Milton Keynes, UK
11356_{8} 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 20131025 at 11:05 
20131029, 00:32  #2 
Jul 2003
So Cal
2×13×79 Posts 
We are going to around q=2600M, so there are about 237k unreleased 16e and 350k unreleased 16e v5 WU's.

20131126, 10:37  #3 
"Carlos Pinho"
Oct 2011
Milton Keynes, UK
2×2,423 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 20131126 at 10:47 
20140301, 10:41  #4 
"Bo Chen"
Oct 2005
Wuhan,China
163_{10} 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 20130910 to 20140225, so it took about 6 month. The 16e also sieved some special q for G3p766, I did not track the process of it. 
20140304, 20:18  #5 
"Carlos Pinho"
Oct 2011
Milton Keynes, UK
2·2,423 Posts 
Greg, please update us on the progress of 3,766+, is it already in postprocessing stage? How long will the LA take (approximation)?
Thank you in advance, Carlos 
20140304, 20:27  #6 
Jul 2003
So Cal
2×13×79 Posts 
Filtering now. Likely factors in 23 weeks.

20140324, 18:39  #7 
Jul 2003
So Cal
2·13·79 Posts 
Getting closer...
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 
20140324, 18:54  #8 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
9,257 Posts 
Sqrt phase never felt the need for a bit of a speedup, until now. ;)
GNFS sqrts are particularly longrunning (compared to SNFS projects). Anyway, a day more or a day less... Not a big deal. 
20140326, 18:40  #9 
Jul 2003
So Cal
2×13×79 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 20140326 at 18:41 
20140326, 18:46  #10  
"Ben"
Feb 2007
2^{5}·3·5·7 Posts 
Quote:
. 

20140326, 19:16  #11 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
9,257 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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