20211004, 13:30  #67 
Apr 2020
2×3×7×13 Posts 

20211004, 13:53  #68 
Jun 2012
2·1,621 Posts 
Thanks for this. So the actual yield when not using the d 1 flag is very high for the quartic but then we would likely have many WUs return partial or no results. Unless Greg has a later version of ggnfs 16 which deals with the matter cleanly. Or something else entirely. [/my pointless speculation]

20211004, 14:48  #69 
Apr 2020
2·3·7·13 Posts 
Using composite specialq will also lead to a high duplication rate. It's a useful way to squeeze out a few more relations when yield is low due to suboptimal parameters (eg artificially low lpb and lims on big NFS@Home jobs) but should probably be avoided if possible.

20211004, 14:52  #70 
"Curtis"
Feb 2005
Riverside, CA
37×137 Posts 
I used d 1 because I believe that is how the fsmall siever runs. I don't think you have a worry about the failed workunits, but Greg should comment before we submit the job.

20211004, 15:49  #71 
Jul 2003
So Cal
3^{2}×13×19 Posts 
The NFS@Home binaries use only prime specialq.

20211004, 18:33  #72  
"Curtis"
Feb 2005
Riverside, CA
11715_{8} Posts 
Quote:


20211004, 18:49  #73  
Jun 2012
2×1,621 Posts 
Quote:
And thanks for taking on the LA! Should be fun. 

20211007, 16:58  #74 
Aug 2005
Seattle, WA
2·3^{4}·11 Posts 
C199_M31_k35
With all of the discussion about this difficult quartic and how best to sieve it, there's something I'm missing: why aren't we using the obvious sextic, which has a very reasonable difficulty of 280, instead?

20211007, 17:04  #75 
Jun 2012
2·1,621 Posts 
AS C202_3408_1693
QUEUED AS C202_3408_1693
I was cleaning out the attic and found AS 3408:i1693 with a record setting escore poly. It has been sitting on a shelf for almost a year. I'll place it here for enqueing at some point after the f_small siever catches up. Code:
n: 7610429701878258146556615560847196204170260478136688627519823621252186450051556772508489716641675238873878778627282501333960153571054969424187320132140981530532671111226675538849711076698014563985929827 # norm 1.168186e19 alpha 8.419964 e 4.117e15 rroots 5 skew: 45645857.17 c0: 18098601315886851468557887762291980392541100584 c1: 4841688835906037944690945208990931966764 c2: 175894955102251933301443112313837 c3: 5578183143934717988864129 c4: 61119537791822196 c5: 908107200 Y0: 631670594992711929340967533254444051034 Y1: 75282186386799330835453 rlim: 225000000 alim: 225000000 lpbr: 33 lpba: 33 mfbr: 66 mfba: 96 rlambda: 3.0 alambda: 3.7 Code:
Q0(M) Norm_Yield 60 33339 100 33127 150 30001 200 28658 250 26478 300 25448 350 23827 Last fiddled with by swellman on 20211028 at 01:07 
20211007, 17:12  #76  
Jun 2012
2·1,621 Posts 
Quote:
What is the sextic? A S280 is likely far less difficult than a S261 quartic but it likely still belongs on the f_small siever. 

20211007, 17:20  #77  
Aug 2005
Seattle, WA
2·3^{4}·11 Posts 
Quote:
Code:
n: 4950036370987531796596777020435431752821658735009564665203032637182311299258729058872170618265983042169789410985851232822128958988972946232939020745222679656170411937888556774248091592015827689480701 skew: 1.0000 c6: 1 c5: 1 c4: 1 c3: 1 c2: 1 c1: 1 c0: 1 Y1: 1 Y0: 45671926060252476630107084286792841360213803007 type: snfs 

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