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

fivemack 2017-04-07 17:09

[QUOTE=VBCurtis;456280]I forgot to add target_density to the command line, and produced a 21.8M matrix at default density. I re-ran the filtering with TD = 140, and produced the identical matrix![/quote]

That distinctly surprises me; can I see the relevant bits of the log? Remember that
[code]
msieve -v -nc1 -t 6 target_density=140
[/code]
runs with target density [b]70[/b]; the target_density needs to be right after the -nc1

VBCurtis 2017-04-08 02:47

1 Attachment(s)
Attached is the log from TD=136; I deleted the log from the original no-density-set run, but the matrix was the same size to 4 sigfigs. (I forgot the TD = 140 runs were with the relations file truncated, not sure why I tried 136 first)

fivemack 2017-04-08 10:20

Interesting: so much over-sieving that the remaining cycles were very light. I didn't know that could happen. Thank you.

fivemack 2017-04-08 10:38

Taking C203_132_83

richs 2017-04-09 00:54

[QUOTE=richs;456183]Reserving C237_12161_59 (14e)[/QUOTE]

Since my reservation has not shown up on the 14e status page, just a reminder that I will be downloading the relations when they complete soon.

[b]fivemack[/b]: sorry for the omission, the reservation has been inserted

unconnected 2017-04-14 12:03

C186_290770486991_19 completed - 61 hours for 8.7M matrix (TD=140).


[CODE]prp93 factor: 150439732626969761986330690056970259714353117122410952773267829152146312696348867088231317079
prp93 factor: 740845168441870684384902125736351384779286997262301911427594857947914931324509223013796294481
[/CODE]

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

RichD 2017-04-14 21:06

I'll take C238_12301_19 next.
Which is really 12301^59-1.

swellman 2017-04-15 10:33

137^62+62^137 factored
 
1 Attachment(s)
[code]
prp92 factor: 59915134378056696732367932276503084510388450809160673947455647072742315394579939431345569751
prp109 factor: 4726536549082114298263832049813671703961650884878966776267592873481393429447689989176410105408788931466415019
[/code]

VBCurtis 2017-04-16 06:07

13*2^793-1 factored
 
[code]prp84 factor: 218733177161231832966771125073991586700926578295329737721842253100215814271723769489
prp109 factor: 1122189132526495094389696806443711604583514165950135489327269050120777398921647097444353689166948241335034811[/code]
I test-sieved with the incorrect skew, so actual yield was well over my estimate, leading to oversieving. I filtered with 406M rels and TD =140, and "matrix not dense enough, retrying" led to a 9.96M matrix of density 67.

Log at [url]https://pastebin.com/iVdp0JtX[/url]

For once, I remembered to post factors to factordb.

swellman 2017-04-17 00:51

142^67+67^142 (15e)
 
Reserving 142^67+67^142. I'll download in a few days.

Does it appear to have enough relations to build a matrix?

RichD 2017-04-19 03:44

C238_12301_19 (aka 12301^59-1) factored
 
84 hours to solve a 10.8M matrix, -t 4, w/ TD=128.
[CODE]p66 factor: 306429441119212982842160094679500662234521592175004993998537169117
p172 factor: 5373399008907437443111523249428629587116534769141955817762052772664564995799203197079637125948336534748396015219065752233860621512112226157563812238766474000931184842407627[/CODE]
[url]https://pastebin.com/C6qLf5fM[/url]


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