Linear algebra reservations, progress and results - Page 169

fivemack · 2017-03-18, 12:24

Reserving C203_131_73

ETA morning of Wed 29 March

fivemack · 2017-03-20, 09:03

Code:

Sat Mar 18 16:02:01 2017  p56 factor: 76781812120260810423674407357181398062050651121199975133
Sat Mar 18 16:02:01 2017  p145 factor: 1575832044789185624917451058628545230528037894576360337313677484823795502771030156103294778517895978910641633739908978700612507400990426935780317

77 hours on 7 threads E5-2650v2 for a 13.1M matrix. Log attached and at http://pastebin.com/ftSGyXDq

fivemack · 2017-03-20, 09:05

(fx: bites bullet; grimaces)

Taking C193_143_93. Anticipating it will take a couple of months.

henryzz · 2017-03-20, 16:52

Quote:

Originally Posted by fivemack

The last 33-bit job I did took nine weeks on a 32GB i7/5820K, which has two more cores and a significantly better memory subsystem, and is in a water-cooled desktop machine that ran unattended 24/7. It used more than 20GB of memory for the nine weeks.

I think probably you'd be biting off more than you can chew.

How long would you expect these to take on the Knight's Landing system?

swellman · 2017-03-20, 19:34

Quote:

Originally Posted by swellman

I'll take C172_327668647153_19 once sieving is complete.

Code:

prp73 factor: 6054725637139677465720575881783390450522419160557268492512016879544214461
prp99 factor: 890014372026059848287884564136243757498233449579710863544205700586905490716551126205371524104139949

unconnected · 2017-03-22, 12:42

Taking 50009_239.

unconnected · 2017-03-24, 06:36

98999_231 completed - 57 hours for 8M matrix (TD=100).

Code:

prp68 factor: 50548077638013050674449920334613826410478457550085766773313566314799
prp164 factor: 19585314541328915857037914790116248844145263732064431396496806380255205386818063123590196977425504913668736401670190676558449880863734626182440940047477465657354801

http://pastebin.com/Ghk4jKiv

swellman · 2017-03-24, 20:25

Would it be possible to run some additional sieving on C250_51119? I'm struggling to get the matrix to build. Than you.

fivemack · 2017-03-25, 19:13

Quote:

Originally Posted by swellman

Would it be possible to run some additional sieving on C250_51119? I'm struggling to get the matrix to build. Than you.

Another 25% queued up for C250_51119; should be a nice small matrix when that's done.

swellman · 2017-03-25, 20:16

Thank you!

fivemack · 2017-03-25, 20:24

Quote:

Originally Posted by fivemack

(fx: bites bullet; grimaces)

Taking C193_143_93. Anticipating it will take a couple of months.

There's some odd data corruption going on with C193_143_93; if I just use gunzip then it stops after 1126400417 decompressed bytes with

Code:

gzip: C193_143_93.dat.gz: invalid compressed data--crc error

gzip: C193_143_93.dat.gz: invalid compressed data--length error

Thankfully gzrecover exists; the result from it is quite full of corrupt patches, but

Code:

egrep -a -e "^[0-9-]+,[0-9]+:[0-9a-fA-F,:]+$" msieve.dat > msieve.dat.clean

cleans it up a bit. I don't think it can be getting damaged in transmission - I'm downloading over https, after all. Should be able to proceed regardless, it looks as if there are a billion clean relations there.

2017-03-18, 12:24	#1849
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 6424₁₀ Posts	Reserving C203_131_73 ETA morning of Wed 29 March Last fiddled with by fivemack on 2017-03-27 at 09:45 Reason: Add ETA

2017-03-20, 09:05	#1851
fivemack (loop (#_fork)) Feb 2006 Cambridge, England 2³×11×73 Posts	(fx: bites bullet; grimaces) Taking C193_143_93. Anticipating it will take a couple of months. Last fiddled with by fivemack on 2017-03-20 at 09:05

2017-03-24, 20:25	#1856
swellman Jun 2012 6024₈ Posts	C250_51119 Would it be possible to run some additional sieving on C250_51119? I'm struggling to get the matrix to build. Than you.

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