Queue management for e_small and 15e queues - Page 17

swellman · 2021-09-10, 17:49

QUEUED AS 9p2_271

9+2,271 of the Homogeneous Cunningham project is ready for SNFS on 15e_small.

Quote:

n: 2292534914688785980724325945961127139316392016928047421183342877389714524649008044617679542401175561673505739443695364903609417434775716623273207260761472021794682004458482890170940629784433146522689544398148227635957719952397166045716369507
skew: 0.7783
type: snfs
size: 258
c6: 9
c0: 2
Y1: -35184372088832
Y0: 8727963568087712425891397479476727340041449
rlim: 134000000
alim: 134000000
lpbr: 31
lpba: 31
mfbr: 91
mfba: 62
rlambda: 3.4
alambda: 2.7

Test sieving on rational side in blocks of 5k:

Quote:

Q(M) Adjusted_Yield
40M 11014
70M 9775
100M 8452
150M 7489
200M 6396

Suggesting a Q-range of 40-195M.

chris2be8 · 2021-09-12, 15:49

QUEUED AS f98_127p1

(98^127+1)/47211361357136942477033504065308835571609840246811565061701254124596092793 from the Brent tables:

Code:

# Built Fri Sep 10 17:33:31 2021
# Estimated SNFS difficulty 253, GNFS equivalent 182, GNFS difficulty 180, degree 6
n: 162804006839198900907039498598902075321154836223240391994210539284680975200479120818566929486192120491312403788739006883308420242549309772192403001131463839012589090905132311861961
type: snfs
c6: 98
c0: 1
# Y0 = 98^21
Y0: 654255812319992603059327487069600715112448
# Y1 = 1^0
Y1: 1
# msieve rating: skew 0.47, size 1.637e-12, alpha 0.849, combined = 1.694e-13 rroots = 0
skew: 0.47
rlim: 134000000
alim: 134000000
lpbr: 31
lpba: 31
mfbr: 62
mfba: 62
rlambda: 2.6
alambda: 2.6

This is near to being faster by GNFS, but the e-score is slightly better than the record for a c180.

Sieve on 15e_small from 34M to 130M on the rational side.

Test sieving 10k ranges:

Code:

I'll do the LA.

swellman · 2021-09-13, 15:33

QUEUED AS 12p5_239

HCN 12+5,239 is finishing up ECM and will be ready to sieve on 15e_small later today.

Code:

n: 1549702520411509255053129403143588607801286348131555084530050952797995123387118671108957512470119586184208588851561586210720251195330697047286468330101423311110597526527097190851858668825234911926344308398367394004724253301599155508994239185737
skew: 1.1571
type: snfs
size: 257.9
c6: 5
c0: 12
Y1: -9094947017729282379150390625
Y0: 14697715679690864505827555550150426126974976
rlim: 134000000
alim: 134000000
lpbr: 31
lpba: 31
mfbr: 91
mfba: 62
rlambda: 3.4
alambda: 2.7

Test sieving results from the rational side using blocks of 5000:

Code:

Q(M)   Adjusted_Yield
40M       9653
70M       8394
100M      7644
150M      6585
200M      5885

Suggesting a sieving range of 35-215MQ.

chris2be8 · 2021-09-15, 16:51

Is f98_127p1 hung? https://escatter11.fullerton.edu/nfs/crunching_es.php shows it top of the queue, but no work sent out or received?

VBCurtis · 2021-09-15, 22:04

QUEUED AS 13_2_911m1

13*2^911-1 is ready for SNFS, after 2T55 of ECM:

Code:

n: 21296049863525055833893135559747320665874666181710679615667797526025638700470028772225624150332138730904590623016098520579761534542726025648746877984937652654956919531810940239159849948794134969413359225820060230477461806335281124654527743980396396948703857
skew: 0.75
type: snfs
c6: 13
c0: -2
Y1: -1
Y0: 5708990770823839524233143877797980545530986496
rlim: 134000000
alim: 240000000
lpbr: 32
lpba: 33
mfbr: 93
mfba: 65
rlambda: 3.5
alambda: 2.4

Test-sieving 1kQ blocks indicates Q from 25-260M should be enough for 610M relations:

Code:

#Q=30M	3731 rels, 0.223 sec/rel
#Q=50M	3613 rels, 0.202 sec/rel
#Q=80M	2787 rels, 0.241 sec/rel 51 spq
#Q=110M 3014 rels, 0.258 sec/rel 57 spq
#Q=140M 2539 rels, 0.301 sec/rel 53 spq
#Q=170M 1893 rels, 0.312 sec/rel 42 spq
#Q=200M 2298 rels, 0.332 sec/rel 55 spq
#Q=230M 2265 rels, 0.391 sec/rel 51 spq
#Q=260M 2167 rels, 0.361 sec/rel 57 spq

Xyzzy is welcome to do the matrix; if he doesn't claim it I will handle it.

swellman · 2021-09-15, 22:20

Quote:

Originally Posted by chris2be8

Is f98_127p1 hung? https://escatter11.fullerton.edu/nfs/crunching_es.php shows it top of the queue, but no work sent out or received?

I just saw this post and yes it appears to be stuck. I’ve asked Greg to take a look - it seems a typo crept into the skew (“Skew” - mea culpa), maybe this is the problem? Anyway I can’t correct it.

ETA: Greg deleted the problem job file and I’ve resubmitted it as f98_127p1a.

Xyzzy · 2021-09-16, 11:07

Quote:

Originally Posted by VBCurtis

Xyzzy is welcome to do the matrix; if he doesn't claim it I will handle it.

Yes, please reserve it for us.

RichD · 2021-09-19, 15:13

QUEUED AS 3432158701_23m1

C178 from the OPN t800 file.
Ready for 15e_small. Sieve on the algebraic side.

Code:

n: 4616071776759724317685529815039689078034715584465780730160442676997178230739565221523206121106566644167805711211774054723386436619013167481971673579951024628277519307086329478389
# 3432158701^23-1, difficulty: 228.85, skewness: 38.84, alpha: 0.00
# cost: 1.5826e+18, est. time: 753.62 GHz days (not accurate yet!)
skew: 38.838
lss: 0
c6: 1
c0: -3432158701
Y1: -1
Y0: 138761646581075056159639489677754774801
type: snfs
rlim: 67000000
alim: 67000000
lpbr: 30
lpba: 30
mfbr: 60
mfba: 87
rlambda: 2.6
alambda: 3.5

Trial sieving 5K blocks.

Code:

chris2be8 · 2021-09-19, 15:45

QUEUED AS f34_166p1

(34^166+1)/25385312545800837394394433079622090371079895704072254618504970393 from the Brent tables:

Code:

# Built Wed Sep 15 17:10:17 2021
# Estimated SNFS difficulty 255, GNFS equivalent 184, GNFS difficulty 190, degree 5
n: 6620910453521950964632981088264695620273962517543795100441805301174603580184540458505755867059841884919677360202366063806090564113386478839824993730398802152796289110808826639894580754092969
type: snfs
c5: 34
c0: 1
# Y0 = 34^33
Y0: 345783497216724000335707367685598692782880644399104
# Y1 = 1^0
Y1: -1
# msieve rating: skew 0.49, size 2.973e-17, alpha 0.044, combined = 9.151e-14 rroots = 1
skew: 0.49
rlim: 134000000
alim: 134000000
lpbr: 31
lpba: 31
mfbr: 91
mfba: 62
rlambda: 3.5
alambda: 2.6

I've test sieved both degree 5 and degree 6, degree 5 definitely sieves better (it has both smaller coefficients and better alpha). But it still needs 3 large primes to get a good enough yield.

Sieve on 15e_small from 46M to 134M on the rational side.

Test sieving 10k ranges:

Code:

I'll do the LA.

chris2be8 · 2021-09-26, 15:40

QUEUED AS f48_151p1

(48^151+1)/4587010099 from the Brent tables, partly to stop the queue running dry:

Code:

# Built Sat Sep 25 17:22:31 2021
# Estimated SNFS difficulty 255, GNFS equivalent 182, GNFS difficulty 245, degree 6
n: 16065607312733688239174350003695090231057937890213886004757875955324693970949779138121867183258111247653517074794820769163825330891629278574111612430864509820378991864894640486007187855745289391205706979568950038981428326700292972419329843626747
type: snfs
c6: 3
c0: 4
# Y0 = 48^25*2
Y0: 2148131828653921576056299603663823763931136
# Y1 = 1^0
Y1: 1
# msieve rating: skew 1.05, size 1.571e-12, alpha 1.261, combined = 1.627e-13 rroots = 0
skew: 1.05
rlim: 134000000
alim: 134000000
lpbr: 31
lpba: 31
mfbr: 62
mfba: 62
rlambda: 2.6
alambda: 2.6

Sieve on 15e_small from 34M to 140M on the rational side.

Test sieving 10k ranges:

Code:

RichD · 2021-09-26, 22:09

QUEUED AS 71119_236

C237 from the Near-RepDigit project, 71119_236.
The SNFS difficulty is 237.81-digit.

Code:

n: 711111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111119
m: 2000000000000000000000000000000000000000
deg: 6
c6: 100
c0: 71
skew: 0.94
type: snfs
rlim: 64000000
alim: 64000000
lpbr: 30
lpba: 30
mfbr: 60
mfba: 60
rlambda: 2.7
alambda: 2.7

Trial sieving 5K blocks.

Code:

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2021-09-15, 16:51	#180
chris2be8 Sep 2009 3²×271 Posts	Is f98_127p1 hung? https://escatter11.fullerton.edu/nfs/crunching_es.php shows it top of the queue, but no work sent out or received?