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 2020-04-10, 00:22 #89 Batalov     "Serge" Mar 2008 Phi(4,2^7658614+1)/2 47×197 Posts Ah, the good ol' "cusp of covergence"... yup, +10-15% more rels will do wonders.
2020-04-11, 13:20   #90
swellman

Jun 2012

1011011111112 Posts

Quote:
 Originally Posted by ryanp Code: Msieve v. 1.54 (SVN 1030M) Thu Apr 9 15:49:45 2020 random seeds: b1df747f 5980fccb factoring 279441091906891533960233538329194101330014441725960390999007342357855400168211212501842451733654470555853507347821373596296049325886741856611262733847909839472007849262548215431506904992811614738217547 (201 digits) no P-1/P+1/ECM available, skipping commencing number field sieve (201-digit input) R0: -624948490362327534771821177945073520298 R1: 82975462901273636763037 A0: -7583346797836368579665634952612227928264820069472 A1: -32843208785445240649824828662012034845284 A2: 924819043613201432950422377289849 A3: 1593924972284055429767781 A4: 870570924566536 A5: -11725440 skew 1.00, size 1.030e-19, alpha -8.637, combined = 7.246e-18 rroots = 3
Since there is no C201 in the best poly table, I ran this poly through cow noise to verify/optimize its e-score. Best skew of 305056821.28730 gives an e-score of 4.24492022e-15. This is close to the trendline value for the top e-scores of 4.41e-15 for a C201. I’ll add this one to the best poly table.

 2020-04-11, 16:01 #91 ryanp     Jun 2012 Boulder, CO 13×19 Posts Definitely looking a lot better with some more rels... Code: Msieve v. 1.54 (SVN 1030M) Sat Apr 11 12:44:17 2020 random seeds: d470b8be a07a064d factoring 279441091906891533960233538329194101330014441725960390999007342357855400168211212501842451733654470555853507347821373596296049325886741856611262733847909839472007849262548215431506904992811614738217547 (201 digits) no P-1/P+1/ECM available, skipping commencing number field sieve (201-digit input) R0: -624948490362327534771821177945073520298 R1: 82975462901273636763037 A0: -7583346797836368579665634952612227928264820069472 A1: -32843208785445240649824828662012034845284 A2: 924819043613201432950422377289849 A3: 1593924972284055429767781 A4: 870570924566536 A5: -11725440 skew 1.00, size 1.030e-19, alpha -8.637, combined = 7.246e-18 rroots = 3 commencing linear algebra read 52787928 cycles cycles contain 182789158 unique relations read 182789158 relations using 20 quadratic characters above 4294917295 building initial matrix memory use: 26387.5 MB read 52787928 cycles matrix is 52787751 x 52787928 (28449.9 MB) with weight 8641886200 (163.71/col) sparse part has weight 6824525372 (129.28/col) filtering completed in 2 passes matrix is 52786748 x 52786925 (28449.8 MB) with weight 8641839946 (163.71/col) sparse part has weight 6824513416 (129.28/col) matrix starts at (0, 0) matrix is 52786748 x 52786925 (28449.8 MB) with weight 8641839946 (163.71/col) sparse part has weight 6824513416 (129.28/col) saving the first 240 matrix rows for later matrix includes 256 packed rows matrix is 52786508 x 52786925 (25976.1 MB) with weight 6312856809 (119.59/col) sparse part has weight 5964899244 (113.00/col) using block size 8192 and superblock size 946176 for processor cache size 39424 kB commencing Lanczos iteration (64 threads) memory use: 34833.6 MB linear algebra at 0.0%, ETA 517h 9m786925 dimensions (0.0%, ETA 517h 9m) checkpointing every 110000 dimensions6925 dimensions (0.0%, ETA 524h25m) linear algebra completed 36501 of 52786925 dimensions (0.1%, ETA 511h 1m)
 2020-04-13, 16:15 #92 ryanp     Jun 2012 Boulder, CO 13×19 Posts Managed to get it down even more using some more rels and target_density=150... Code: Msieve v. 1.54 (SVN 1030M) Sun Apr 12 08:20:16 2020 random seeds: 576e392d b3dd3297 factoring 279441091906891533960233538329194101330014441725960390999007342357855400168211212501842451733654470555853507347821373596296049325886741856611262733847909839472007849262548215431506904992811614738217547 (201 digits) no P-1/P+1/ECM available, skipping commencing number field sieve (201-digit input) R0: -624948490362327534771821177945073520298 R1: 82975462901273636763037 A0: -7583346797836368579665634952612227928264820069472 A1: -32843208785445240649824828662012034845284 A2: 924819043613201432950422377289849 A3: 1593924972284055429767781 A4: 870570924566536 A5: -11725440 skew 1.00, size 1.030e-19, alpha -8.637, combined = 7.246e-18 rroots = 3 commencing linear algebra read 44478048 cycles cycles contain 154580983 unique relations read 154580983 relations using 20 quadratic characters above 4294917295 building initial matrix memory use: 22661.5 MB read 44478048 cycles matrix is 44477870 x 44478048 (25232.3 MB) with weight 7643757171 (171.85/col) sparse part has weight 6080766001 (136.71/col) filtering completed in 2 passes matrix is 44477230 x 44477402 (25232.3 MB) with weight 7643724602 (171.86/col) sparse part has weight 6080756102 (136.72/col) matrix starts at (0, 0) matrix is 44477230 x 44477402 (25232.3 MB) with weight 7643724602 (171.86/col) sparse part has weight 6080756102 (136.72/col) saving the first 240 matrix rows for later matrix includes 256 packed rows matrix is 44476990 x 44477402 (22989.4 MB) with weight 5625909934 (126.49/col) sparse part has weight 5314905825 (119.50/col) using block size 8192 and superblock size 608256 for processor cache size 25344 kB commencing Lanczos iteration (72 threads) memory use: 30287.4 MB linear algebra at 0.0%, ETA 306h26m477402 dimensions (0.0%, ETA 306h26m) checkpointing every 150000 dimensions7402 dimensions (0.0%, ETA 302h30m) linear algebra completed 4331593 of 44477402 dimensions (9.7%, ETA 226h 9m)
 2020-04-13, 16:34 #93 VBCurtis     "Curtis" Feb 2005 Riverside, CA 2·5·461 Posts I wouldn't expect 44.5M matrix to take less than half the time of 52.8M! But, I notice the smaller matrix is smaller than 32GB, while the larger one isn't. I wonder if there is some sort of memory-addressing change (hardware, or in msieve) that makes matrices bigger than 32GB notably slower. 10 days for a C201 matrix is pretty cool, all the same- without MPI! Last fiddled with by VBCurtis on 2020-04-13 at 16:34 Reason: 9 days -> 10, noticed 9.7% progress already
2020-04-18, 00:16   #94
swellman

Jun 2012

55778 Posts

Quote:
 Originally Posted by ryanp Managed to get it down even more using some more rels and target_density=150... Code: Msieve v. 1.54 (SVN 1030M) Sun Apr 12 08:20:16 2020 random seeds: 576e392d b3dd3297 factoring 279441091906891533960233538329194101330014441725960390999007342357855400168211212501842451733654470555853507347821373596296049325886741856611262733847909839472007849262548215431506904992811614738217547 (201 digits) no P-1/P+1/ECM available, skipping commencing number field sieve (201-digit input) R0: -624948490362327534771821177945073520298 R1: 82975462901273636763037 A0: -7583346797836368579665634952612227928264820069472 A1: -32843208785445240649824828662012034845284 A2: 924819043613201432950422377289849 A3: 1593924972284055429767781 A4: 870570924566536 A5: -11725440 skew 1.00, size 1.030e-19, alpha -8.637, combined = 7.246e-18 rroots = 3 commencing linear algebra read 44478048 cycles cycles contain 154580983 unique relations read 154580983 relations using 20 quadratic characters above 4294917295 building initial matrix memory use: 22661.5 MB read 44478048 cycles matrix is 44477870 x 44478048 (25232.3 MB) with weight 7643757171 (171.85/col) sparse part has weight 6080766001 (136.71/col) filtering completed in 2 passes matrix is 44477230 x 44477402 (25232.3 MB) with weight 7643724602 (171.86/col) sparse part has weight 6080756102 (136.72/col) matrix starts at (0, 0) matrix is 44477230 x 44477402 (25232.3 MB) with weight 7643724602 (171.86/col) sparse part has weight 6080756102 (136.72/col) saving the first 240 matrix rows for later matrix includes 256 packed rows matrix is 44476990 x 44477402 (22989.4 MB) with weight 5625909934 (126.49/col) sparse part has weight 5314905825 (119.50/col) using block size 8192 and superblock size 608256 for processor cache size 25344 kB commencing Lanczos iteration (72 threads) memory use: 30287.4 MB linear algebra at 0.0%, ETA 306h26m477402 dimensions (0.0%, ETA 306h26m) checkpointing every 150000 dimensions7402 dimensions (0.0%, ETA 302h30m) linear algebra completed 4331593 of 44477402 dimensions (9.7%, ETA 226h 9m)
Can you grab a PasteBin URL for the log file from this job (minus all the errors)? Or drop the log file here so we can archive it? C200+ GNFS jobs are rare and the data even rarer.

2020-04-23, 16:02   #95
ryanp

Jun 2012
Boulder, CO

24710 Posts

Quote:
 Originally Posted by swellman Can you grab a PasteBin URL for the log file from this job (minus all the errors)? Or drop the log file here so we can archive it? C200+ GNFS jobs are rare and the data even rarer.
Factored - hit it on the first dep.

Code:
Thu Apr 23 05:37:57 2020  commencing square root phase
Thu Apr 23 05:37:57 2020  reading relations for dependency 1
Thu Apr 23 05:38:02 2020  read 22237486 cycles
Thu Apr 23 05:39:03 2020  cycles contain 77281922 unique relations
Thu Apr 23 05:47:16 2020  read 77281922 relations
Thu Apr 23 05:54:59 2020  multiplying 77281922 relations
Thu Apr 23 07:44:21 2020  multiply complete, coefficients have about 5053.50 million bits
Thu Apr 23 07:44:57 2020  initial square root is modulo 464663
Thu Apr 23 09:43:50 2020  sqrtTime: 14753
Thu Apr 23 09:43:50 2020  p74 factor: 19818998170946101668788934393756203344526033991999579369982582944112958423
Thu Apr 23 09:43:50 2020  p128 factor: 14099657787775648409470845740041938497443954568341176252770693685247040440686642037975014903358304810965340982721425062745417389
Thu Apr 23 09:43:50 2020  elapsed time 04:05:54
Full log:

2020-04-23, 19:49   #96
Uncwilly
6809 > 6502

"""""""""""""""""""
Aug 2003
101×103 Posts

23EB16 Posts

Quote:
 Originally Posted by ryanp Factored - hit it on the first dep.

Nice.

 2020-04-24, 21:09 #97 ryanp     Jun 2012 Boulder, CO 3678 Posts i2140 On i2140 (2 * 3 * c213), I've done a full 50K curves with B1=26e7, and have just started some at B1=29e8; it looks like it might be a tough nut to crack.
2020-04-25, 02:51   #98
Batalov

"Serge"
Mar 2008
Phi(4,2^7658614+1)/2

47·197 Posts

Quote:
 Originally Posted by ryanp it looks like it might be a tough nut to crack.
Who are you and what have you done to real Ryan?
He would never say nothing like that.

 2020-11-25, 18:43 #99 VBCurtis     "Curtis" Feb 2005 Riverside, CA 2×5×461 Posts Starting poly select on this C213, using CADO and degree 6.

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