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-   -   2020 16e post processing reservations and results (https://www.mersenneforum.org/showthread.php?t=25961)

jyb 2020-11-10 06:10

3p2_1578M factored
 
[code]
p87 factor: 314389616949051947856531832346566233331973715733290450537058841292768618820674371082757
p112 factor: 2048934494035023127337362640577649880117135008394199282868650700432273546535823221707812398078222322032523951457
[/code]

[url]https://pastebin.com/p0DWC9ZV[/url]

VBCurtis 2020-11-29 16:37

3366_2224 is in postprocessing.

606M raw relations yielded 483M uniques, enough to build a 35.9M matrix at TD 124. It'll take 3 weeks to solve.

jyb 2020-12-18 17:46

Taking 8p3_834L.

VBCurtis 2020-12-18 18:11

[QUOTE=jyb;566577]Taking 8p3_834L.[/QUOTE]

I haven't tried one of these big quartic jobs- if you could post memory use during filtering and the size of the resulting matrix, I'd appreciate it.

jyb 2020-12-19 00:14

[QUOTE=VBCurtis;566582]I haven't tried one of these big quartic jobs- if you could post memory use during filtering and the size of the resulting matrix, I'd appreciate it.[/QUOTE]

Sure, though I probably won't start for a few days, until most of the outstanding work units have trickled in.

jyb 2020-12-22 21:54

[QUOTE=VBCurtis;566582]I haven't tried one of these big quartic jobs- if you could post memory use during filtering and the size of the resulting matrix, I'd appreciate it.[/QUOTE]

[code]
Tue Dec 22 09:26:03 2020 commencing relation filtering
Tue Dec 22 09:26:03 2020 setting target matrix density to 120.0
...
Tue Dec 22 10:03:52 2020 commencing duplicate removal, pass 2
Tue Dec 22 10:05:44 2020 found 0 duplicates and 376779347 unique relations
Tue Dec 22 10:05:44 2020 memory use: 1321.5 MB
Tue Dec 22 10:05:44 2020 reading ideals above 309919744
Tue Dec 22 10:05:44 2020 commencing singleton removal, initial pass
Tue Dec 22 10:31:57 2020 memory use: 6024.0 MB
Tue Dec 22 10:31:58 2020 reading all ideals from disk
Tue Dec 22 10:32:03 2020 memory use: 6904.4 MB
Tue Dec 22 10:32:19 2020 commencing in-memory singleton removal
Tue Dec 22 10:32:33 2020 begin with 376779347 relations and 310396245 unique ideals
Tue Dec 22 10:35:25 2020 reduce to 260546128 relations and 183665697 ideals in 14 passes
Tue Dec 22 10:35:25 2020 max relations containing the same ideal: 49
Tue Dec 22 10:35:44 2020 reading ideals above 720000
Tue Dec 22 10:35:45 2020 commencing singleton removal, initial pass
Tue Dec 22 11:01:01 2020 memory use: 6024.0 MB
Tue Dec 22 11:01:02 2020 reading all ideals from disk
Tue Dec 22 11:01:11 2020 memory use: 11439.4 MB
...
Tue Dec 22 12:11:07 2020 commencing 2-way merge
Tue Dec 22 12:11:58 2020 reduce to 55760982 relation sets and 54121813 unique ideals
Tue Dec 22 12:11:58 2020 commencing full merge
Tue Dec 22 12:35:29 2020 memory use: 7038.1 MB
...
Tue Dec 22 12:35:54 2020 commencing cycle optimization
Tue Dec 22 12:36:53 2020 start with 224975857 relations
Tue Dec 22 12:47:49 2020 pruned 10679506 relations
Tue Dec 22 12:47:49 2020 memory use: 5800.7 MB
...
Tue Dec 22 13:23:52 2020 matrix is 24785706 x 24785883 (11728.7 MB) with weight 3320871442 (133.98/col)
Tue Dec 22 13:23:52 2020 sparse part has weight 2801974712 (113.05/col)
Tue Dec 22 13:23:52 2020 saving the first 48 matrix rows for later
Tue Dec 22 13:23:56 2020 matrix includes 64 packed rows
Tue Dec 22 13:23:58 2020 matrix is 24785658 x 24785883 (11249.3 MB) with weight 2871892645 (115.87/col)
Tue Dec 22 13:23:58 2020 sparse part has weight 2701077747 (108.98/col)

[/code]
Hopefully this gives you what you want to know. I'll post the full log when the job completes.

VBCurtis 2020-12-22 22:27

3366_2224 has factors:
[code]p71 factor: 18437836149618370434281620971869325865705306903528887274585655227576391
p125 factor: 75850361765365741605637348986331036062471006912738915817734014124420263971333307633217450014316434148733029960124938048103847
[/code]

483M unique 32/33LP relations built a 35.9M matrix at TD=124. This took ~23 days to solve on 10 cores of Ivy Bridge- Xeon.

Log at [url]https://pastebin.com/FFdgRNch[/url]

jyb 2020-12-22 23:32

8p3_834L now in linear algebra.

VBCurtis 2020-12-23 00:22

[QUOTE=jyb;567022]Hopefully this gives you what you want to know. I'll post the full log when the job completes.[/QUOTE]

Thanks! That tells me a 16GB machine would be enough to solve the matrix, though not one used for other tasks in the meantime.

jyb 2020-12-31 05:22

8p3_834L factored
 
[code]
p64 factor: 5386615734827920616029575531764652188196347636472473209711568761
p152 factor: 62370657862363077291574785799128273676421390467762922777213566905164376399690598317917531084078601547482547033055023736429949223064689741704179177271793
[/code]

[url]https://pastebin.com/MmA7r0f8[/url]


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