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-   -   Linear algebra reservations, progress and results (https://www.mersenneforum.org/showthread.php?t=20023)

unconnected 2016-04-20 06:58

C179_140_37 completed: 12.5 hours for 5.6M matrix with TD=120

[CODE]prp86 factor: 31213939121664318370797417877338016078767176995751253668003399656639182126468618206447
prp94 factor: 1200720204118511401602767440293444264796999594404001873334108447860246501243683443350679694527
[/CODE]C208_143_36 completed: 13.5 hours for 4.7M matrix with TD=120 (-t 12)

[CODE]prp84 factor: 188782993947174430702510462829041093170927355513760032300089699219030195245734120933
prp125 factor: 46911534881064143430784089034956228619477990629972931171536461104142798720576313536471918039970875123180399883498373707558781[/CODE]

Reserving C179_140_37 and C184_147_32.

fivemack 2016-04-20 07:48

Taking 251101831_29_minus1

(edit: 23.1M matrix at density 70 indicated nothing like enough sieving; extending range by 25% and trying again)

unconnected 2016-04-20 11:19

1 Attachment(s)
GC_3_598 completed: 15 hours for 6M matrix with TD=120

[CODE]prp73 factor: 6934497839952779033421127602022414474225545207730646122201261233037553867
prp88 factor: 1753257731633275423532869039260128630292271958549919918897003071956252654338492140358469
[/CODE]

jyb 2016-04-21 05:48

4_412_plus_3_412 factored
 
1 Attachment(s)
[code]
p63 factor: 456837240474264494365918783763317911017288222189096753643098297
p120 factor: 251810882849811442506160441387774902126789876366773207307938676230672919038528360952256804552767676239784582753289672161
[/code]

unconnected 2016-04-21 05:51

Reserving 118^109+109^118 from 15e queue.

pinhodecarlos 2016-04-21 06:40

12101_61_minus1 done
 
1 Attachment(s)
12101_61_minus1 done

[CODE]
Thu Apr 21 07:34:21 2016 prp75 factor: 403421044929871954774855579276771608743064517121615493980058352213476348941
Thu Apr 21 07:34:21 2016 prp90 factor: 635058862207311929087148980919201766354076294158194032280936375462305516101361247929164043
[/CODE]

unconnected 2016-04-22 08:07

1 Attachment(s)
C184_147_32 completed: 14 hours for 5.5M matrix with TD=120

[CODE]prp62 factor: 19484817158448934900258256295863908574240194776283568563941427
prp123 factor: 474934881215456263116181400148263148488267800868711675695360193119039575070105071895993314749558667699997245955539502318091
[/CODE]

unconnected 2016-04-22 23:28

1 Attachment(s)
C186_145_34 completed: 26.5 hours for 8M matrix with TD=110

[CODE]P56 = 13617542299234528092096497953641164905312157589984386819
P65 = 93826345539868019278482390545257820502577647014885489797649642857
P66 = 241448734637388918529146368136026680151377281719662513631452889747[/CODE]

wombatman 2016-04-23 04:31

The C190 for Home Primes 2 #4496 is finally running. 8 threads, TD=110 (120 wouldn't build).

...annnnnd it's using 22GB of RAM and will finish in a mere 922 hours or so, give or take.

Yikes. :ouch1:

VBCurtis 2016-04-23 06:18

Measuring matrix time in weeks rather than hours is a big change!
What dimension is the thing?

A C170 (my next GNFS project) may take me 6-8 weeks to sieve, so a C190 should be over a year (4 doublings of 7 weeks is 2 years, actually) to sieve on a single machine? If so, 6 weeks to solve the matrix sounds cheap at under 10% of sieve time.

wombatman 2016-04-23 13:57

Matrix is 34M. Current estimated time remaining is 877 hours (1.1% progress). It's far and away the largest one I've tackled.

I'm glad the extra 100M relations were gathered. I can't imagine doing this at a lower TD. :smile:


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