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 2015-01-09, 00:48 #1 VictordeHolland     "Victor de Hollander" Aug 2011 the Netherlands 32·131 Posts Fast Breeding (guru management) These two Fibonacci numbers were suggested by Batalov a few months ago, they can still be sieved: Fib(1405) C235 x^4+3x^2+1 x-L281 SNFS difficulty = 234.6 Fib(1415) C236 x^4+3x^2+1 x-L283 SNFS difficulty = 236.2 Both have survived enough ECM (17769 curves @110M by B.Kelly). Last fiddled with by VictordeHolland on 2015-01-09 at 00:53
 2015-01-09, 01:58 #2 frmky     Jul 2003 So Cal 2×23×53 Posts Those are both on my list of potential candidates. I just skipped them for now since I haven't looked at the parameters for a quartic in a while. As quartics, I think they are more appropriate for 15e. Last fiddled with by frmky on 2015-01-09 at 01:59
 2015-01-10, 04:18 #3 frmky     Jul 2003 So Cal 2×23×53 Posts Looking at the list of remaining Fib/Luc numbers in range of 15e, after the current batch we have 1 quintic (L1397), 16 quartics (F1405, F1415, and 14 Lucas numbers from L2645A to L2855A/B), and 7 GNFS (F2145, F2163, F1585, L2037, L1502, L1583, and L1541). I'll need to look up those quartic parameters again soon.
 2015-01-16, 23:49 #4 fivemack (loop (#_fork))     Feb 2006 Cambridge, England 2×7×461 Posts A bit worried Does Code: C170_5748_1537 Aliquot GNFS(170) 32 20-120 M 42.17 % 3371 2534 0 0 ... Tom Womack (lots of blocks pending and none completed) mean I've got the polynomial file somehow wrong? Could someone competent have a look at it?
 2015-01-17, 00:35 #5 pinhodecarlos     "Carlos Pinho" Oct 2011 Milton Keynes, UK 26×79 Posts I see a lot of blocks completed but I don't see on the server where the relations are saved. C170_5748_1537 folder is empty. Last fiddled with by pinhodecarlos on 2015-01-17 at 00:38
2015-01-17, 14:30   #6
RichD

Sep 2008
Kansas

3×1,213 Posts

Quote:
 Originally Posted by fivemack (lots of blocks pending and none completed)
Same thing with lasieved.

Top entry sitting at 201M completed and 32M est. pending for nearly a day.
Number of pending dropped from over 500 to 300 with no change in the relations count.

 2015-01-17, 14:32 #7 debrouxl     Sep 2009 2·3·163 Posts The update script probably went belly-up in a persistent way again. This occurs once in a while.
 2015-01-23, 19:37 #8 fivemack (loop (#_fork))     Feb 2006 Cambridge, England 2×7×461 Posts The statistics issue appears to have been resolved. I have added a few more Q to some of the 14e numbers, but GW_7_288 is ready for linear algebra now.
 2015-01-27, 09:54 #9 debrouxl     Sep 2009 17228 Posts Feeding the Beast (queue management) The 14e queue is currently low, so I've queued a relatively easy (SNFS 233) near-repdigit number, though not started it yet. Rich Dickerson recently suggested the 7103^61-1 and 7331^61-1 OP numbers, SNFS difficulty 235, on which at least 10K curves at B1=43e6 were performed. I'm hereby reserving both. It's been a while since we did OP numbers We still have several GCW numbers suitable for 14e, don't we ?
 2015-01-27, 10:17 #10 fivemack (loop (#_fork))     Feb 2006 Cambridge, England 2·7·461 Posts I'm not anticipating queuing anything for a while: my polynomial-selection resources are all devoted to 114!+1 and it will be a week or so before I have a polynomial. It looks as if yoyo@home has thoroughly ECMed several GCW numbers, I'll leave the choice and enqueuing for those up to xilman. I have asked yoyo@home to do substantial ECM on the three XYYXF C17x cofactors with highest SNFS:GNFS difficulty ratio, and will feed those (at least one to 14e, probably two, possibly three) once the ECM is done and I've found a polynomial.
 2015-01-29, 00:31 #11 fivemack (loop (#_fork))     Feb 2006 Cambridge, England 2·7·461 Posts I've put the two mentioned OPN numbers on; it would be good if xilman or someone could put up some more GCW, otherwise the queue will drain quite fast. I had a look at GC_11_239, but it's too big for 14e.

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