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-   -   BOINC NFS sieving - NFS@Home (https://www.mersenneforum.org/showthread.php?t=12388)

frmky 2013-10-28 17:46

No. It terminated before the end of the file. I'll look into it.

Batalov 2013-10-28 18:17

[QUOTE=wombatman;357744]Here's what I get running your command (limited to the end part, of course), Frmky:

[CODE]Mon Oct 28 12:20:16 2013 31.5M unique relns 1.59M duplicate relns (+0.05M, avg D/U ratio in block was 9.4%)
Found 31809992 unique, 1617420 duplicate (4.8% of total), and 181942 bad relations.
Largest dimension used: 147 of 800
Average dimension used: 97.1 of 800
Terminating program at Mon Oct 28 12:20:18 2013[/CODE]

Does that seem right to you?[/QUOTE]
Based on this report, you don't need [I]dim[/I] value (hash depth) to be above 150. (you may have run out of memory with dim=800.)

Could you retry with
[FONT="Courier New"]zcat rels.dat.gz | remdups4 [B][COLOR="DarkRed"]150[/COLOR][/B] -v > msieve.dat[/FONT]

wombatman 2013-10-28 18:32

Here's the result:

[CODE]Found 31809992 unique, 1617420 duplicate (4.8% of total), and 181942 bad relations.
Largest dimension used: 147 of 150
Average dimension used: 97.1 of 150
Terminating program at Mon Oct 28 13:31:32 2013[/CODE]

Just confirmed that the remdups binary works properly on an older, smaller relations file (17M or so relations). It found exactly the same number of duplicates that msieve did.

VictordeHolland 2013-10-28 19:34

1 Attachment(s)
I got my relations to work with:
[CODE]remdups 600 GC_12_206.dat msieve.dat[/CODE]Copied the remdups.c from the link into the cross platform IDE "Code::Block" and pressed compile. "Code::Block" used "mingw32-gcc" with parameter "-march=core2" for compiling I believe, so it's 32bit unfortunately. "800" therefore gave me an out of memory message, but "600" worked just fine too. I attached the file, hope it runs for others too. Linear Algebra is now at 5.8% .

wombatman 2013-10-28 22:53

I tried Victor's exe and a rebuilt exe using both "-m64" and "-march=corei7". All of them end at the same point with the same number of dupes and unique relations.

VictordeHolland 2013-10-29 00:56

31.8M unique relations out of 120M+ relations indeed seems incorrect.
Wombatman are you able to construct a matrix and proceed with the LA, or are you stuck at the relations filtering?

wombatman 2013-10-29 01:22

Stuck on the filtering as far as I can tell unless there's a way to skip that part.

frmky 2013-10-29 01:39

Worked for me. Odd...

Uploading msieve.dat.gz now. Should be ready to download in a half hour or so.

wombatman 2013-10-29 03:16

Very strange. Maybe a Windows/Linux line ending issue or something? Don't know why it would pop up only now.

Batalov 2013-10-29 06:00

1 Attachment(s)
One doesn't simply [STRIKE]walk into Mordor[/STRIKE] debug Windows.

xilman 2013-10-29 09:22

Ben & Victor:

Could I ask you to email me your NFS@Home results in future please? Somewhat more trouble for you but much more reliable and much less hassle for me than the alternatives. I thjnk I managed to scrape your factors from the NFS@Home site and the factordb can't be certain that I got all the details correct. Neither are the reports made particularly promptly.

Thanks!

The GCW web pages will be updated later today, all being well.

Paul


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