Linear algebra reservations, progress and results - Page 223

fivemack · 2018-02-12, 10:09

Code:

Sun Feb 11 21:10:35 2018  p70 factor: 1197029444897180361944790744670570161356167559163209890310767474793921
Sun Feb 11 21:10:35 2018  p128 factor: 24100466461420844234549269959534690293572884763094032297267197739596062292980402475234916848661896386722219380579767478275678441

29.9 hours for 8.13M density-116 (not 118) matrix on 7 cores E5-2650v2

Log attached and at https://pastebin.com/hd4gpVbn

fivemack · 2018-02-12, 10:47

Taking XY_C230_130_77

(the 137^77+77^137 cofactor)

ETA morning of 21 Feb

RichD · 2018-02-13, 00:55

276M total relations/205M unique relations to build a 19.0M matrix using TD=124 (TD=128 failed).
Solve time about 312 hours. (-t 4)

Code:

p123 factor: 109558303194501545340622556522112849755919116026282420699878221877707763830469976822392439233030056326572517411587534588451
p140 factor: 15437062394425238488942809721483132705076085680929608027646686831712819500794920018624963577571811457431849021242830690447583651681075421693

https://pastebin.com/fVX0tDTs

fivemack · 2018-02-13, 08:10

Code:

Tue Feb 13 03:44:06 2018  p108 factor: 877857151493934739623436317289798858920138203613426371257328695012215052055135532031577577504043678026294161
Tue Feb 13 03:44:06 2018  p124 factor: 1154061941856923705709793226740774910279843202974345743448753739568349382635558815444489737151822743462949622370597641787653

76.7 hours on 6 cores i7/5820K for a 12.21M density-124 (not 126) matrix.

Log attached and at https://pastebin.com/NkbW9vNr

richs · 2018-02-13, 14:38

Reserving C164_140xx289_7 phi_7(largest factor of phi_7(phi_13(7))) in 14e

Dubslow · 2018-02-14, 05:30

Quote:

Originally Posted by Dubslow

This will be done within a day, so I'll also reserve and start downloading XY_C233_144_53.

Code:

matrix is 11329575 x 11329800 (5093.9 MB) with weight 1312390653 (115.84/col)
sparse part has weight 1222031013 (107.86/col)
using block size 8192 and superblock size 589824 for processor cache size 6144 kB
commencing Lanczos iteration (4 threads)
memory use: 4356.5 MB
linear algebra at 0.0%, ETA 140h24m329800 dimensions (0.0%, ETA 140h24m)    
checkpointing every 80000 dimensions29800 dimensions (0.0%, ETA 142h36m)    
linear algebra completed 11329570 of 11329800 dimensions (100.0%, ETA 0h 0m)    
lanczos halted after 179161 iterations (dim = 11329570)
recovered 38 nontrivial dependencies
BLanczosTime: 524225

commencing square root phase
handling dependencies 1 to 64
reading relations for dependency 1
read 5662511 cycles
cycles contain 18665598 unique relations
read 18665598 relations
multiplying 18665598 relations
multiply complete, coefficients have about 547.20 million bits
initial square root is modulo 81163
sqrtTime: 2383
p54 factor: 792843510963833767311688647106230819237955248262384157
p179 factor: 48400865829920451100946564756191825351531505680732327184650733081930247419348772568050079108048391431206750496970616025706613506747187701535524593356707418436213076175112327841477
elapsed time 147:49:00

https://pastebin.com/3VaNExwj

I'll reserve XY_C234_138_130.

pinhodecarlos · 2018-02-15, 21:42

Quote:

Originally Posted by RichD

No, I picked another one that was ready to go. And I still have 206 hours remaining on another one. But if it is still available in a week I may look at it again.

Just to let you know I won’t be doing this one since I’ve still another job to complete and from this Sunday I’ll have no fast and unlimited internet connection to download 20 or 30GB of data until 9th of March.

RichD · 2018-02-15, 22:00

Quote:

Originally Posted by pinhodecarlos

Just to let you know I won’t be doing this one since I’ve still another job to complete and from this Sunday I’ll have no fast and unlimited internet connection to download 20 or 30GB of data until 9th of March.

In fact, I will be able to start on it later this weekend.

Reserving 9_266+.C255

VictordeHolland · 2018-02-15, 22:02

Should the need arise, I've got a quad-core 32GB machine that I've used for 14e and 15e NFS@home post-processing tasks before. Only restriction is that I don't like doing task that take more than a month on it. Preferably I'd like to use Msieve SVN988 (or if somebody has a newer Win64 .exe compiled for Ivy/Sandy bridge without CUDA)

pinhodecarlos · 2018-02-15, 22:05

Quote:

Originally Posted by VictordeHolland

Should the need arise, I've got a quad-core 32GB machine that I've used for 14e and 15e NFS@home post-processing tasks before. Only restriction is that I don't like doing task that take more than a month on it. Preferably I'd like to use Msieve SVN988 (or if somebody has a newer Win64 .exe compiled for Ivy/Sandy bridge without CUDA)

Try these ones:

Quote:

Originally Posted by ATH

So apparently the large vectors makes sense even without MPI=1:

make all WIN=1 WIN64=1 ECM=1 CUDA=0 NO_ZLIB=1 VBITS=64/128/256:

msieve-svn1018-vbits64-haswell.zip
msieve-svn1018-vbits128-haswell.zip
msieve-svn1018-vbits256-haswell.zip

msieve-svn1018-vbits64-sandybridge.zip
msieve-svn1018-vbits128-sandybridge.zip
msieve-svn1018-vbits256-sandybridge.zip

pinhodecarlos · 2018-02-15, 22:07

Quote:

Originally Posted by RichD

In fact, I will be able to start on it later this weekend.

Reserving 9_266+.C255

Thank you.

2018-02-12, 10:47	#2444
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 2³·11·73 Posts	Taking XY_C230_130_77 (the 137^77+77^137 cofactor) ETA morning of 21 Feb Last fiddled with by fivemack on 2018-02-19 at 10:28 Reason: added ETA

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
restarting nfs linear algebra	cubaq	YAFU	2	2017-04-02 11:35
Linear algebra at 600%	CRGreathouse	Msieve	8	2009-08-05 07:25
Linear algebra crashes	10metreh	Msieve	3	2009-02-02 08:34
Linear algebra proof	Damian	Math	8	2007-02-12 22:25
Linear algebra in MPQS	R1zZ1	Factoring	2	2007-02-02 06:45

2018-02-13, 14:38	#2447
richs "Rich" Aug 2002 Benicia, California 10100101000₂ Posts	Reserving C164_140xx289_7 phi_7(largest factor of phi_7(phi_13(7))) in 14e

2018-02-15, 22:02	#2451
VictordeHolland "Victor de Hollander" Aug 2011 the Netherlands 2³×3×7² Posts	Should the need arise, I've got a quad-core 32GB machine that I've used for 14e and 15e NFS@home post-processing tasks before. Only restriction is that I don't like doing task that take more than a month on it. Preferably I'd like to use Msieve SVN988 (or if somebody has a newer Win64 .exe compiled for Ivy/Sandy bridge without CUDA)