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-   -   2018 15e post-processing reservations and results (https://www.mersenneforum.org/showthread.php?t=23411)

fivemack 2018-06-02 15:05

2018 15e post-processing reservations and results
 
It looks as if there is something unstable with the 2800-post main linear algebra thread, so let's start a fresh new one

fivemack 2018-06-02 17:43

L1968 done
 
1 Attachment(s)
[code]
Sat Jun 2 18:36:50 2018 p103 factor: 1082025384245449318163228409751496813948269365800046070285061878930645248081261044636339467855637375809
Sat Jun 2 18:36:50 2018 p125 factor: 43622397177513639342813782341479901024613355834703428226367785131508535176249405555561927551316854214526398157129973517783583
[/code]

207.8 hours for 19.82M matrix at density 142 (144 didn't work) on 6 threads i7-4930K

Log attached and at [url]https://pastebin.com/0qneeEyR[/url]; Marin informed

fivemack 2018-06-05 08:49

What's the point of ludicrously fast computers if you don't use them?
 
Taking C196_146_83

RichD 2018-06-06 04:12

131^94+94^131 (15e) factored
 
[CODE]p125 factor: 10703070861659532426880841349439662855563032158020774945123476126846815175682438762989693926183469289598612767539508848992667
p129 factor: 228288376891071669916909447310420942869215044270725946935766448637138852870695128087185273591084600944469150574576475259429256989[/CODE]
245 total relations - 183 unique relations built a 15.8M matrix using TD=124. (TD=128 failed)
Solve time (considering outages) is estimated at 292 hours.

[url]https://pastebin.com/uQicJeye[/url]

Edit: Oops, wrong thread. This should be in 15e.

fivemack 2018-06-12 17:53

L3265B done
 
1 Attachment(s)
[code]
Tue Jun 12 16:23:09 2018 p82 factor: 4507818197422919074710720142559473525616468097531636988530073588048955751632615461
Tue Jun 12 16:23:09 2018 p104 factor: 31449831826541029545699314998162963305878851041158230066936378900827659852509570821390112892370536578421
[/code]

146.9 hours on 10 cores Xeon Silver 4114 for an 18.01M density-144 matrix (146 didn't work). Log attached and at [url]https://pastebin.com/jELNvhQd[/url]

Marin and factordb informed.

fivemack 2018-06-13 18:22

[QUOTE=fivemack;489200]Taking C196_146_83[/QUOTE]

This isn't too awful as large matrices go: density 138, and

[code]
matrix is 32749672 x 32749897 (16829.3 MB) with weight 4405314772 (134.51/col)
sparse part has weight 4084193513 (124.71/col)
using block size 8192 and superblock size 1351680 for processor cache size 14080 kB
commencing Lanczos iteration (10 threads)
memory use: 14743.3 MB
...
linear algebra completed 87999 of 32749897 dimensions (0.3%, ETA 563h45m)
[/code]

So ETA is about the first week in July

RichD 2018-06-26 05:43

Taking C181_127_116.

VBCurtis 2018-06-30 18:19

Taking Lucas(1568), GNFS-186.
Expecting this to stretch my 16GB machine a fair bit, starting in a few days.

fivemack 2018-07-01 15:49

Taking Lucas(1328)

fivemack 2018-07-01 15:52

Taking C197_4788_12515

VictordeHolland 2018-07-02 07:57

Taking [B]C226 from 92^131+131^92[/B]
(hope it fits on the machine)


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