Fast Breeding (guru management) - Page 118

pinhodecarlos · 2017-12-12, 17:30

I'm having complains about memory usage for the lasieved and lasievee applications and I do understand why it has increased but I also understand clients side therefore please can someone get in touch with Greg so he can update the NFS@Home preferences from

Code:

lasieved - app for RSALS subproject, uses less than 0.5 GB memory: no
lasievee - work nearly always available, uses up to 0.5 GB memory: no
lasievef - used for huge factorizations, uses up to 1 GB memory: no
lasieve5f - used for huge factorizations, uses up to 1 GB memory: no

to

Code:

lasieved - app for RSALS subproject, uses less than 1 GB memory: no
lasievee - work nearly always available, uses up to 1 GB memory: no
lasievef - used for huge factorizations, uses up to 2 GB memory: no
lasieve5f - used for huge factorizations, uses up to 2 GB memory: no

swellman · 2017-12-13, 13:04

QUEUED C231_143_54 is ready for SNFS on 14e

Code:

n: 621085412790375307954842303091242401599187785292720387746556526386679857104333956026343063778911229796200937308543061359094429164695389309646960536529277270574547452218723280530181202814788132166578758240264451449370939414863659139
# 143^54+54^143, difficulty: 249.46, anorm: 1.47e+037, rnorm: 2.71e+047
# scaled difficulty: 251.18, suggest sieving rational side
# size = 2.476e-012, alpha = 0.000, combined = 2.298e-013, rroots = 0
type: snfs
size: 249
skew: 1.9442
c6: 1
c0: 54
Y1: -25004854810776297743
Y0: 377963825299746235969115118367001548947456
rlim: 134000000
alim: 134000000
lpbr: 31
lpba: 31
mfbr: 62
mfba: 62
rlambda: 2.7
alambda: 2.7

Test sieving on the -r side with Q in blocks of 2K

Code:

Q=20M    3535
Q=80M    2368
Q=150M   2108
Q=250M   1768

Suggesting a sieving range for Q of 20M-230M with a target # rels = 240M.

swellman · 2017-12-14, 18:55

QUEUED C220_129_109 is ready for SNFS on 15e

Code:

n: 1346957944035369350649177183417460897586124902256063554768391394398599626692189283695087162300401361678902401675388806200833900916005885361521283703010174719944801385811778394608428733146714260436067757229410423908184919
# 127^109+109^127, difficulty: 260.79, anorm: 2.35e+038, rnorm: 6.03e+048
# scaled difficulty: 262.53, suggest sieving rational side
# size = 2.279e-013, alpha = 0.000, combined = 4.128e-014, rroots = 0
type: snfs
size: 260
skew: 1.0258
c6: 109
c0: 127
Y1: -73869809188743794269800200736680064769
Y0: 6108807736878338211809453421477901879741309
rlim: 268000000
alim: 268000000
lpbr: 32
lpba: 32
mfbr: 64
mfba: 64
rlambda: 2.8
alambda: 2.8

Test sieving on the -r side with Q in blocks of 2K

Code:

Q=20M    4468
Q=80M    3284
Q=150M   2974
Q=250M   2831
Q=300M   2326

Suggesting a sieving range for Q of 20M-330M with a target # rels = 480M.

Dubslow · 2017-12-16, 12:30

Pretty sure that 77^128+1 cofactor is somewhat undersieved. Not sure by how much, but I definitely can't get a matrix.

Well, if it's not undersieved, some help would be appreciated, but... I'm not really sure what else it could be

Code:

nice -n 19 ./msieve -t 4 -v -nc "target_density=70"


Msieve v. 1.53 (SVN 991M)  
Sat Dec 16 06:06:19 2017   
random seeds: 91020989 c2601156
factoring 570611637478057074957499986744193359634547269168995406738772319690440015794454188222324761357837625956203568420184748900348100119547789201738170458697904144112540373136615440721108151900897392173128110
898213889 (210 digits)
no P-1/P+1/ECM available, skipping
commencing number field sieve (210-digit input)
R0: 4133378999547948340940571656980377632477
R1: -1
A0: 1
A1: 0
A2: 0
A3: 0
A4: 0
A5: 0
A6: 5929
skew 1.44, size 4.098e-12, alpha 0.309, combined = 3.062e-13 rroots = 0

commencing relation filtering
setting target matrix density to 70.0
estimated available RAM is 15992.2 MB
commencing duplicate removal, pass 1
read 10M relations
read 20M relations
read 30M relations
read 40M relations
read 50M relations
read 60M relations
read 70M relations
error -15 reading relation 76688484
read 80M relations
error -11 reading relation 80259748
skipped 17 relations with b > 2^32
found 3505866 hash collisions in 89196982 relations
added 1218505 free relations
commencing duplicate removal, pass 2
found 0 duplicates and 90415487 unique relations
memory use: 261.2 MB
reading ideals above 86573056
commencing singleton removal, initial pass
memory use: 3012.0 MB
reading all ideals from disk
memory use: 1657.2 MB
commencing in-memory singleton removal
begin with 90415487 relations and 118660108 unique ideals
reduce to 3625379 relations and 1325112 ideals in 24 passes
max relations containing the same ideal: 8
reading ideals above 100000
commencing singleton removal, initial pass
memory use: 344.5 MB
reading all ideals from disk
memory use: 167.4 MB
keeping 11247032 ideals with weight <= 200, target excess is 19298
commencing in-memory singleton removal
begin with 3858602 relations and 11247032 unique ideals
reduce to 801 relations and 0 ideals in 4 passes
max relations containing the same ideal: 0
filtering wants 1000000 more relations
elapsed time 00:20:28

fivemack · 2017-12-16, 13:19

Yes, it's wildly undersieved (I think I started it out planning to adjust the size later, because I wasn't quite confident with my yield measurements locally); have roughly doubled the number of Q.

swellman · 2017-12-17, 15:59

QUEUED C245_147_55 is ready for SNFS on 15e

Code:

n: 15066216921569949537278591303356552160569221987375280410339362242277652815400239026041568122693798988503386855080995849909622265146560854689413460313451823537765927499326782303115354897790334497196042430631665104049382608447803356519497007367877
# 147^55+55^147, difficulty: 261.05, anorm: 9.89e+039, rnorm: 2.36e+048
# scaled difficulty: 262.45, suggest sieving rational side
# size = 2.344e-013, alpha = 0.000, combined = 4.256e-014, rroots = 0
type: snfs
size: 261
skew: 1.5488
c6: 1331
c0: 18375
Y1: -32052064847671367667
Y0: 2935449086370352236840677559375762939453125
rlim: 268000000
alim: 268000000
lpbr: 32
lpba: 32
mfbr: 64
mfba: 64
rlambda: 2.8
alambda: 2.8

Test sieving on the -r side with Q in blocks of 2K

Code:

Q=20M    5474
Q=80M    3656
Q=150M   3421
Q=250M   3307
Q=300M   3053

Suggesting a sieving range for Q of 20M-290M with a target # of rels = 490M.

swellman · 2017-12-17, 16:03

BOTH QUEUED
C231_145_57 is ready for SNFS on 14e.

Code:

n: 487462203488641084662765485427390608344534392459053644895041190483745804399470392946074891462927507600003649603068413641219317478019716960363312633057558748313060257478328181865245410500890090974235275206527434105842036615448873389
# 145^57+57^145, difficulty: 254.60, anorm: 2.90e+032, rnorm: 3.08e+056
# scaled difficulty: 258.61, suggest sieving rational side
# size = 9.859e-018, alpha = 0.000, combined = 5.051e-014, rroots = 1
type: snfs
size: 254
skew: 7.3206
c5: 1
c0: 21025
Y1: -595728015903604931640625
Y0: 832474260857516094176403796072035154334600003844057
rlim: 268000000
alim: 400000000
lpbr: 32
lpba: 32
mfbr: 64
mfba: 64
rlambda: 2.8
alambda: 2.8

Test sieving on the -r side with Q in blocks of 2K

Code:

Q=30M    2022
Q=80M    1942
Q=150M   2122
Q=250M   2275
Q=350M   2075
Q=450M   1897

Suggesting, with a dose of hedging, a sieving range of 20M-490M with a target # rels = 470M.

==================================

C231_144_110 is ready for SNFS on 14e

Code:

n: 700429108582468681530022000698447919307047404004645133500918005306274800591896396190869457916486076120861120153542900423094582708590081167008477678971459432646201578658620098507025288130705511570556065872418878841284188516477070969
# 144^110+110^144, difficulty: 250.61, anorm: 3.60e+037, rnorm: 3.63e+047
# scaled difficulty: 252.28, suggest sieving rational side
# size = 2.321e-012, alpha = 0.000, combined = 2.189e-013, rroots = 0
type: snfs
size: 250
skew: 2.6207
c6: 1
c0: 324
Y1: -84495767949234467194240606666752
Y0: 587089817274070447368135511875152587890625
rlim: 134000000
alim: 134000000
lpbr: 31
lpba: 31
mfbr: 62
mfba: 62
rlambda: 2.7
alambda: 2.7

Test sieving on the -r side with Q in blocks of 2K

Code:

Q=20M    3310
Q=80M    2179
Q=150M   1974
Q=250M   1697

Suggesting a range for Q of 20M-240M with target # rels = 240M.

Last of my nominations for a while. Gotta focus on postprocessing. Thanks.

VBCurtis · 2017-12-17, 20:21

QUEUED 13*2^836-1, for 14e:

Code:

n: 446778553763041880824029402190312582258057034807820679885780814903984332892787473020745705377923758412764637717930269968958993142983575301680607186388696393538943526067219268231596895913186678728689
m: 696898287454081973172991196020261297061888
type: snfs
size: 254
skew: 0.54
c6: 52
c0: -1
rlim: 134000000
alim: 200000000
lpbr: 33
lpba: 33
mfbr: 65
mfba: 65
rlambda: 2.7
alambda: 2.7

Suggested sieve range 20M-180M for ~630M relations.
Test-sieved on 1.1Ghz ultrabook, 2k Q-ranges:

Code:

30M 0.117 sec/rel, 9652 rels
70M 0.127 sec/rel, 7953 rels
100M 0.145 sec/rel, 7892 rels
130M 0.164 sec/rel, 7442 rels
160M 0.169 sec/rel, 7059 rels
190M 0.184 sec/rel, 6794 rels

I would like to do LA for this number.

swellman · 2017-12-20, 03:07

Quote:

Originally Posted by swellman

15120 curves @B1=43M yielded no factors. Now running 12000 curves @t60 level. Marin has been updated.

12000 curves @B1=260M completed with no factors found with C184 cofactor of L3865B. Marin updated.

Poly search scheduled to start next week.

RichD · 2017-12-23, 03:54

QUEUED C262 from the OPN MWRB file for 15e queue.

Code:

n: 1691258362240878280454178428210930093387995565018686454967377347094043699721437276517346006084343984994009127771016074764883067093211082213169148955695073468059507949955137578606583196114785524503032331459432916909161408179816042086760615819245979012488032667543
# 5393^71-1, difficulty: 268.69, skewness: 4.19, alpha: 0.00
# cost: 3.35598e+19, est. time: 15980.87 GHz days (not accurate yet!)
skew: 4.188
c6: 1
c0: -5393
Y1: -1
Y0: 605292152577983359632734706451399897723780801
m: 605292152577983359632734706451399897723780801
type: snfs
rlim: 134000000
alim: 268000000
lpbr: 31
lpba: 31
mfbr: 62
mfba: 93
rlambda: 2.6
alambda: 3.6

Trial sieving 5K blocks.

Code:

swellman · 2017-12-25, 21:51

Quote:

Originally Posted by swellman

12000 curves @B1=260M completed with no factors found with C184 cofactor of L3865B. Marin updated.

Poly search scheduled to start next week.

Poly search complete. L3865B survived all ECM efforts, and now thanks to Max0526 a poly has been found with a record setting e-score for a C184. Poly is repeated here for convenience.

Code:

n: 1251516986508717322323583052382284336136171549993041380955868385111197235307360385444235100079672151016701474271745769669221614486348266045684925884036811974151645364807120147382456261
skew: 155081925.86 
c0: 3258381761015893322703469355508610515519640008 
c1: 994948670578842945305212888379095752533 
c2: -11449251905133422400956610990120 
c3: -69609283675092247656887 
c4: 438761968162182 
c5: 1519560 
Y0: -510262266069797436279473833437161562 
Y1: 3739355384257464468353
# norm 6.135551e-18 alpha -9.140155 e 4.696e-14 rroots 5

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2017-12-16, 13:19	#1292
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 2³×11×73 Posts	Yes, it's wildly undersieved (I think I started it out planning to adjust the size later, because I wasn't quite confident with my yield measurements locally); have roughly doubled the number of Q.