mersenneforum.org

mersenneforum.org (https://www.mersenneforum.org/index.php)
-   NFS@Home (https://www.mersenneforum.org/forumdisplay.php?f=98)
-   -   Linear algebra reservations, progress and results (https://www.mersenneforum.org/showthread.php?t=20023)

RichD 2017-01-25 16:40

P55 (19269...)^5-1 Log
 
Got it to work - I think.

[url]http://pastebin.com/mdS0wmbw[/url]

VBCurtis 2017-01-27 03:25

13*2^905-1 produced filtering message "matrix not dense enough, retrying" a few times, finally building a matrix of density 40 (target density was set to 140). After ~70 hrs of LA, only the trivial dependencies were recovered.

Restarting postprocessing with filter_maxrels set to 310M.

Next time, is "matrix not dense enough, retrying" the sort of nearly-fatal message that should incite me to restart filtering with fewer relations?

RichD 2017-01-27 03:43

[QUOTE=VBCurtis;451645]Next time, is "matrix not dense enough, retrying" the sort of nearly-fatal message that should incite me to restart filtering with fewer relations?[/QUOTE]

I saw that message once but didn't think much about it because it eventually completed. But it was a 10 day solve.

[url]http://pastebin.com/SvXfm9Wh[/url]

jyb 2017-01-27 17:43

[QUOTE=VBCurtis;451645]13*2^905-1 produced filtering message "matrix not dense enough, retrying" a few times, finally building a matrix of density 40 (target density was set to 140). After ~70 hrs of LA, only the trivial dependencies were recovered.

Restarting postprocessing with filter_maxrels set to 310M.

Next time, is "matrix not dense enough, retrying" the sort of nearly-fatal message that should incite me to restart filtering with fewer relations?[/QUOTE]

Strangely enough, that message seems to appear in two different situations. One is that there aren't enough relations, and the other is that there are too many. In practice I've only seen it in the latter situation.

In this case, the number was way oversieved. For a 31-bit job, 250M should have been plenty. Some extra can produce a smaller matrix, but 350M is firmly in the territory where one sees this problem. I would probably have just started with maxrels set to 300M.

swellman 2017-01-28 13:58

9+5_295 (15e)
 
Reserving 9+5_295 from the 15e queue.

RichD 2017-01-28 16:19

I'll take 32668561^31-1 next.

swellman 2017-01-29 15:23

1 Attachment(s)
[QUOTE=swellman;451501]Reserving 19218301^31 - 1 if it is available.[/QUOTE]


[code]
prp76 factor: 2758005348426399256471975117475109030251493697251061390611599493168874121569
prp103 factor: 7812280223399775417889125540463887990280512149934969036205872019610582450050573879946788206077444320093
[/code]

swellman 2017-01-29 15:25

C222_125_92
 
Reserving C222_125_92.

VBCurtis 2017-01-29 23:45

13*2^905-1 factors
 
1 Attachment(s)
[code]prp62 factor: 46205165266133662482948385141378840157279684813622824070309817
prp110 factor: 29742352095538657419873460130787243208882192833790233431382969850597187601711543963363200375101906633497733877[/code]

Log attached. [url]http://pastebin.com/y7CjDbUa[/url]

fivemack 2017-01-31 15:31

C186 from 842592:8053 done
 
1 Attachment(s)
[code]
p61 factor: 2828552482149628110952085410657566731619129765282892686071101
p126 factor: 129999454062486614642509451137992207528880979362609412660254837839413317446553082608089399055348960433331952479568500186490943
[/code]

22.26M matrix at density 120 took around 255 hours on 7 threads E5-2650v2.

Log attached and at [url]http://pastebin.com/mjjhwWvC[/url]

swellman 2017-02-02 10:28

1 Attachment(s)
[QUOTE=swellman;450942]Reserving 9468940004449^17 - 1 for post processing.[/QUOTE]

[code]
prp71 factor: 49319570324911942576065847490549577181702305054656307368513056057736237
prp117 factor: 236408236208426095318413372774730508091627951849214226624392009594648988074456868955277552955382718640478169517494601
[/code]


All times are UTC. The time now is 23:13.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.