20221018, 12:06  #133 
Jun 2012
111101001001_{2} Posts 
See post 143 below for final polynomial selected for sieving
12+7,256 is a SNFS 276 composite from the HCN project. It is ready for sieving on 15e. I test sieved this job twice, first as a 33/32 job and then as a 33/33. 33/32 case: Code:
n: 14465784763601126977599055269783270532544641304323145978534145654240633858626527220916188279798148826301966069344878797378582866606395998179336371169145932268467416189620924711821304788176380624897 skew: 0.2992 type: snfs size: 276 c6: 12544 c0: 9 Y1: 2183814375991796599109312252753832343 Y0: 6349413173626453466517503997664984086853189632 rlim: 134000000 alim: 266000000 lpbr: 33 lpba: 32 mfbr: 96 mfba: 64 rlambda: 3.6 alambda: 2.4 Code:
MQ Norm_yield 35 2457 50 2441 75 2240 100 2030 150 1756 200 1648 250 1458 300 1382 350 1293 400 1268 450 1211 Test sieved again as a 33/33 job: Code:
n: 14465784763601126977599055269783270532544641304323145978534145654240633858626527220916188279798148826301966069344878797378582866606395998179336371169145932268467416189620924711821304788176380624897 skew: 0.2992 type: snfs size: 276 c6: 12544 c0: 9 Y1: 2183814375991796599109312252753832343 Y0: 6349413173626453466517503997664984086853189632 rlim: 134000000 alim: 266000000 lpbr: 33 lpba: 33 mfbr: 96 mfba: 66 rlambda: 3.6 alambda: 2.4 Code:
MQ Norm_yield 35 3414 50 3429 75 3137 100 2881 150 2506 200 2317 250 2035 300 1947 350 1817 400 1775 450 1686 As the 33/33 configuration used 25M less Q and had a healthier yield, I'm going with this second job file. Last fiddled with by swellman on 20221023 at 11:12 
20221020, 16:38  #134  
Aug 2005
Seattle, WA
3471_{8} Posts 
Quote:
Code:
c6: 49 c0: 144 Y1: 2183814375991796599109312252753832343 Y0: 25397652694505813866070015990659936347412758528 Code:
c6: 196 c0: 9 Y1: 2183814375991796599109312252753832343 Y0: 12698826347252906933035007995329968173706379264 Last fiddled with by jyb on 20221020 at 16:40 

20221020, 16:53  #135  
Jun 2012
7×13×43 Posts 
Quote:
ETA: I’ll be happy to test sieve the other two cases you mention. If it saves 10MQ it’s worth checking. Last fiddled with by swellman on 20221020 at 17:11 

20221021, 20:59  #136 
May 2009
Moscow, Russia
2×7×11×19 Posts 
See posts 137142 below
C190 from aliquot sequence 785232:i11573 is ready for 15e queue: Code:
n: 4924615299710155724242041611093792534228929027833793207209717741579479862664806712426989267280154775007779415785841244751833760998628602996813364136776619527437902426854181741931202256338971 Y0: 4816798648132866790605815531348495563 Y1: 1711431772495717393 c0: 6560899350388287964076509886023554467783604240 c1: 124813949570426726344271243947893318876 c2: 5758067944148696689000856644812 c3: 32012217666497014189601 c4: 606195740080942 c5: 1899240 skew: 108308506.39 # size 1.231e18, alpha 7.526, combined = 1.960e14 rroots = 3 # expecting poly E from 2.55e14 to > 2.94e14 rlim: 266000000 alim: 134000000 lpbr: 32 lpba: 33 mfbr: 64 mfba: 96 rlambda: 2.8 alambda: 3.7 type: gnfs lss: 0 Suggesting sieving range is 40M300M. Last fiddled with by swellman on 20221022 at 15:39 
20221021, 21:39  #137  
"Curtis"
Feb 2005
Riverside, CA
5^{2}·229 Posts 
Quote:


20221022, 03:42  #138 
May 2009
Moscow, Russia
2·7·11·19 Posts 
Sorry i missed this discussion regarding lambdas. My choose of lambdas based mostly on previous experience of similarsized jobs (f.e. see here or here).
However I've no objections, let it be rlambda=2.5. As for alambda 96*log(2)/log(134000000)=~3.55 and looks OK. Should I redo testsieve with new parameters? 
20221022, 03:50  #139 
"Curtis"
Feb 2005
Riverside, CA
5^{2}·229 Posts 
My tests with toobig lambdas vs a smaller nonsieveside lambda show no difference in relations found (like 050 relations in a testrange that finds 5000), but a useful speed improvement like 10+%.
I wouldn't change the sieveside lambda without testsieving, because the effective lim is so much smaller for low Q so the needed lambda is higher for low Q. Maybe next job test 3.7 against 3.6? 
20221022, 07:41  #140 
May 2009
Moscow, Russia
B6E_{16} Posts 
Ok, got it.

20221022, 12:42  #141 
Jun 2012
3913_{10} Posts 
QUEUED AS C190_785232_11573
So to confirm everything, we are enqueuing the following: Code:
n: 4924615299710155724242041611093792534228929027833793207209717741579479862664806712426989267280154775007779415785841244751833760998628602996813364136776619527437902426854181741931202256338971 Y0: 4816798648132866790605815531348495563 Y1: 1711431772495717393 c0: 6560899350388287964076509886023554467783604240 c1: 124813949570426726344271243947893318876 c2: 5758067944148696689000856644812 c3: 32012217666497014189601 c4: 606195740080942 c5: 1899240 skew: 108308506.39 # size 1.231e18, alpha 7.526, combined = 1.960e14 rroots = 3 # expecting poly E from 2.55e14 to > 2.94e14 rlim: 266000000 alim: 134000000 lpbr: 32 lpba: 33 mfbr: 64 mfba: 96 rlambda: 2.5 alambda: 3.7 type: gnfs lss: 0 Last fiddled with by swellman on 20221022 at 15:38 
20221022, 13:26  #142 
May 2009
Moscow, Russia
5556_{8} Posts 

20221023, 00:14  #143  
Jun 2012
7·13·43 Posts 
12+7,256 revisited
QUEUED AS 12p7_256
Quote:
Code:
n: 14465784763601126977599055269783270532544641304323145978534145654240633858626527220916188279798148826301966069344878797378582866606395998179336371169145932268467416189620924711821304788176380624897 type: snfs size: 276 skew: 0.5984 c6: 196 c0: 9 Y1: 2183814375991796599109312252753832343 Y0: 12698826347252906933035007995329968173706379264 rlim: 134000000 alim: 266000000 lpbr: 33 lpba: 33 mfbr: 96 mfba: 66 rlambda: 3.65 alambda: 2.45 Code:
MQ Norm_yield 35 3692 50 3708 75 3321 100 2995 150 2659 200 2384 250 2184 300 1955 350 1938 400 1802 450 1780 Thanks to @jyb for righting the ship. Last fiddled with by swellman on 20221023 at 11:11 

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