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2020-11-19, 06:58   #463
LaurV
Romulan Interpreter

Jun 2011
Thailand

22E416 Posts

Quote:
 Originally Posted by ryanp Sure! Happy to lend a hand.
Do you mean you sieved all those relations in... 22 hours and 54 minutes? (between the two posts)

2020-11-19, 11:26   #464
charybdis

Apr 2020

2×3×19 Posts

Quote:
 Originally Posted by ryanp Sure! Happy to lend a hand. Looks like I'll be able to form a matrix with ~500M uniques and target_density=120:
Wow that was quick!

At a guess - 4000 cores?

2020-11-19, 15:09   #465
ryanp

Jun 2012
Boulder, CO

22×53 Posts

Quote:
 Originally Posted by LaurV Do you mean you sieved all those relations in... 22 hours and 54 minutes? (between the two posts)
Nah, I started sieving a day or two before posting.

 2020-11-21, 23:54 #467 ryanp     Jun 2012 Boulder, CO 22·53 Posts Code: Fri Nov 20 19:52:34 2020 random seeds: d4cd1102 789b28fa factoring 602838425516071950702800398634448189069057347958670002131123376237344752203259023839151771860497157053376595595747452480360531573609839995416933600183015816569763112349056289178976881268937221 (192 digits) no P-1/P+1/ECM available, skipping commencing number field sieve (192-digit input) R0: -10536642881491562631501019308286051628 R1: 38473124062368714520009 A0: 6780686882705080323804282112084738299079240200 A1: -615929651998812237047650279903793109285 A2: -8253751695218375720762112293140 A3: 401219187608510740978769 A4: 6364076358300872 A5: -18567360 skew 1.00, size 8.256e-19, alpha -8.472, combined = 4.615e-17 rroots = 3 commencing linear algebra read 26904116 cycles cycles contain 90182403 unique relations read 90182403 relations using 20 quadratic characters above 4294917295 building initial matrix memory use: 13055.6 MB read 26904116 cycles matrix is 26903937 x 26904116 (14443.6 MB) with weight 4386962600 (163.06/col) sparse part has weight 3463463485 (128.73/col) filtering completed in 2 passes matrix is 26903349 x 26903527 (14443.6 MB) with weight 4386930864 (163.06/col) sparse part has weight 3463452161 (128.74/col) matrix starts at (0, 0) matrix is 26903349 x 26903527 (14443.6 MB) with weight 4386930864 (163.06/col) sparse part has weight 3463452161 (128.74/col) saving the first 240 matrix rows for later matrix includes 256 packed rows matrix is 26903109 x 26903527 (13197.4 MB) with weight 3207061856 (119.21/col) sparse part has weight 3029168726 (112.59/col) using block size 8192 and superblock size 608256 for processor cache size 25344 kB commencing Lanczos iteration (64 threads) memory use: 17543.4 MB linear algebra at 0.0%, ETA 92h55m6903527 dimensions (0.0%, ETA 92h55m) checkpointing every 300000 dimensions3527 dimensions (0.0%, ETA 91h39m) linear algebra completed 6844729 of 26903527 dimensions (25.4%, ETA 59h16m)
 2020-11-24, 21:42 #468 ryanp     Jun 2012 Boulder, CO 22×53 Posts A nice split! Code: Tue Nov 24 11:21:57 2020 reading relations for dependency 3 Tue Nov 24 11:21:59 2020 read 13450236 cycles Tue Nov 24 11:22:23 2020 cycles contain 45089204 unique relations Tue Nov 24 11:25:16 2020 read 45089204 relations Tue Nov 24 11:28:45 2020 multiplying 45089204 relations Tue Nov 24 12:27:07 2020 multiply complete, coefficients have about 3027.76 million bits Tue Nov 24 12:27:23 2020 initial square root is modulo 6177617 Tue Nov 24 13:56:54 2020 sqrtTime: 28577 Tue Nov 24 13:56:54 2020 p93 factor: 826164248776371537693168330236234453881886022827728088946983610043299090310948545745909293397 Tue Nov 24 13:56:54 2020 p99 factor: 729683505923832285198781229567687294165000892652766064648405824289915566645575325197264770535402993
2020-11-24, 21:45   #469
SethTro

"Seth"
Apr 2019

C816 Posts

Quote:
 Originally Posted by ryanp A nice split! Code: Tue Nov 24 11:21:57 2020 reading relations for dependency 3 Tue Nov 24 11:21:59 2020 read 13450236 cycles Tue Nov 24 11:22:23 2020 cycles contain 45089204 unique relations Tue Nov 24 11:25:16 2020 read 45089204 relations Tue Nov 24 11:28:45 2020 multiplying 45089204 relations Tue Nov 24 12:27:07 2020 multiply complete, coefficients have about 3027.76 million bits Tue Nov 24 12:27:23 2020 initial square root is modulo 6177617 Tue Nov 24 13:56:54 2020 sqrtTime: 28577 Tue Nov 24 13:56:54 2020 p93 factor: 826164248776371537693168330236234453881886022827728088946983610043299090310948545745909293397 Tue Nov 24 13:56:54 2020 p99 factor: 729683505923832285198781229567687294165000892652766064648405824289915566645575325197264770535402993

Very nice split! The extra ecm I tested was definitely not going to find this factor :)

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