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

swellman 2020-09-14 17:07

2020 16e post processing reservations and results
 
Currently downloading C191_M61_k32 to see it’s ready for SNFS.

Lucas(1510) aim for 360Mrels can be moved to sieving status at any time - I’m reluctant to move it without understanding the desired Q range.

swellman 2020-09-15 23:02

I bumped Q up to 160M for Lucas(1510).

fivemack 2020-10-04 10:11

I'm doing an initial filtering run on L1510 today.

fivemack 2020-10-04 20:24

That's interesting; the status page [url]https://escatter11.fullerton.edu/nfs/crunching_fs.php[/url] says there are 390 million relations, I only see 311875466 relations of which about 249650000 unique and about 180400000 survive singleton removal, and that's not then enough for a matrix. There's plenty of free space on the processing disc so I don't think that's the issue.

I don't know if this is something frmky can usefully look at; I suspect it's easier just to throw more computrons at the problem, so I've extended the range by 20MQ.

frmky 2020-10-04 22:45

The script just counts the number of lines. A simple
zcat L1510.dat.gz | wc -l
agrees with the webpage. Sometimes the project gets odd garbage in returned files as we use a forgiving validation check. Likely that.

Edit: Doesn't seem to be that. I just did a quick remdups and got
Found 305246658 unique, 88901570 duplicate (22.6% of total), and 57712 bad relations.
Largest dimension used: 1000 of 1000
Average dimension used: 931.4 of 1000
*** Some redundant relations may have been retained (increase DIM)
*** 47650 (quasi-unique) relations were not hashed

So seems like >300M unique ones there.

fivemack 2020-10-05 11:36

[QUOTE=frmky;558891]The script just counts the number of lines. A simple
zcat L1510.dat.gz | wc -l
agrees with the webpage[/QUOTE]

Thanks for looking at that; my script was clearly misbehaving somewhere. Rerunning, I'm seeing 405321355 relations of which 405266903 are in the correct form, 312.9M unique, singleton removal running happily and I'll expect at least 255M after that pass.

(and now I have a 31M density-90 matrix and am trying to optimise the density)

fivemack 2020-10-10 10:16

L1510 linalg started, should be done 16 October evening

fivemack 2020-10-16 08:30

L1510 complete
 
1 Attachment(s)
[code]
Fri Oct 16 06:41:07 2020 p93 factor: 768278079468147872006161615793478445262891405249833298882663471356153278846031859145179203921
Fri Oct 16 06:41:07 2020 p112 factor: 3998301491227939181761854883689691516394446820135772189170217349181287770175361143916814142602476105295172951001
[/code]

133 hours on 20 cores Skylake Xeon 4114 for a 29.38M matrix at density 106

Log attached and at [url]https://pastebin.com/3e7jQc6b[/url]

swellman 2020-10-21 13:34

C191_M61_k32 Factored
 
[CODE]
p84 factor: 548495967839253555860650689244596928240665623636601859336571489439754186678079415649
p107 factor: 50144064156698295308606156707972010557985318544494830853525957506091319040013078433900267278158370866053089
[/CODE]

Details at [url]https://pastebin.com/6kNmDaEu[/url]

jyb 2020-11-02 19:12

Taking 3p2_1578M.

jyb 2020-11-03 23:08

[QUOTE=jyb;561983]Taking 3p2_1578M.[/QUOTE]

Now in linear algebra.


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