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Old 2010-10-11, 02:24   #23
schickel
 
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Quote:
Originally Posted by bsquared View Post
I have 50 cores, each of which is twice as fast as schickel's... so you were close ;).
:jealous:!!!
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Old 2010-10-11, 03:31   #24
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Quote:
Originally Posted by schickel View Post
:jealous:!!!
Ahem, well, to be fair, they are not mine - they are my employers'. But I can use them in off hours... which is nice :)
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Old 2010-10-11, 11:23   #25
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I'll take 31M-32M
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Old 2010-10-11, 14:50   #26
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40-43M
43-46M
46-47.2M

12742177 total relations.
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Old 2010-10-11, 15:03   #27
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I'll take 32-40.
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Old 2010-10-11, 16:23   #28
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Quote:
Originally Posted by bsquared View Post
40-43M
43-46M
46-47.2M

12742177 total relations.
Downloaded.
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Old 2010-10-11, 18:47   #29
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Originally Posted by em99010pepe View Post
Downloaded.
Merged the dat file, msieve.dat is now with 2.7GB. How do I check for number of unique relations?
Can I use gnfs-lasieve4I14e instead of gnfs-lasieve4I15e?

Last fiddled with by em99010pepe on 2010-10-11 at 19:09
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Old 2010-10-11, 19:08   #30
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One of the ways to obtain the number of unique relations is running msieve -nc1.
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Old 2010-10-11, 19:36   #31
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Quote:
Originally Posted by em99010pepe View Post
Can I use gnfs-lasieve4I14e instead of gnfs-lasieve4I15e?
Yes, you may. It will result in (some number of) less relations. Simulations would have to be run to know exactly how many. My gut feeling is, on a job this size, not really enough to matter....
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Old 2010-10-11, 19:51   #32
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Quote:
Originally Posted by em99010pepe View Post
Merged the dat file, msieve.dat is now with 2.7GB. How do I check for number of unique relations?
I don't think we need to worry about unique relations yet, since the total relations isn't anywhere near the target number.

But one way is to do:

Code:
cut -d':' -f 1 msieve.dat | sort | uniq | wc -l
The count will be the number of unique relations.

For this many relations, msieve -nc1 is probably faster though.

Quote:
Originally Posted by em99010pepe View Post
Can I use gnfs-lasieve4I14e instead of gnfs-lasieve4I15e?
Sure. For this poly, 15e is a bit more optimal than 14e, but it won't make much of a difference overall. You'll get about half as many relations per Q with 14e vs 15e.
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Old 2010-10-11, 20:01   #33
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Thank you all. Just getting the feeling on this. I learned how to merge dat files, run the siever. Made a quick test on the current msieve.dat:

Code:
Mon Oct 11 20:50:53 2010  Msieve v. 1.47
Mon Oct 11 20:50:53 2010  random seeds: 2c441600 50ed5f76
Mon Oct 11 20:50:53 2010  factoring 31312681856591762976684825948611411853648506930718408786922952694966820760977803934965693400499529851375037912983239126649207012737394067178518887401399185420987310860499 (170 digits)
Mon Oct 11 20:50:54 2010  searching for 15-digit factors
Mon Oct 11 20:50:54 2010  commencing number field sieve (170-digit input)
Mon Oct 11 20:50:54 2010  R0: -217612366832903667482868415880575
Mon Oct 11 20:50:54 2010  R1:  542063406908335635313
Mon Oct 11 20:50:54 2010  A0:  3449752476991340409710593294897864121568
Mon Oct 11 20:50:54 2010  A1:  3679068299798050640485923392826756
Mon Oct 11 20:50:54 2010  A2: -55695962181000919237307903624
Mon Oct 11 20:50:54 2010  A3:  5626603601260154351771
Mon Oct 11 20:50:54 2010  A4:  6624408564633178
Mon Oct 11 20:50:54 2010  A5:  64149120
Mon Oct 11 20:50:54 2010  skew 2848875.02, size 1.089e-016, alpha -8.144, combined = 2.852e-013 rroots = 5
Mon Oct 11 20:50:54 2010  
Mon Oct 11 20:50:54 2010  commencing relation filtering
Mon Oct 11 20:50:54 2010  estimated available RAM is 8183.1 MB
Mon Oct 11 20:50:54 2010  commencing duplicate removal, pass 1
Mon Oct 11 20:53:31 2010  found 12742177 hash collisions in 25484354 relations
Mon Oct 11 20:54:04 2010  added 119945 free relations
Mon Oct 11 20:54:04 2010  commencing duplicate removal, pass 2
Mon Oct 11 20:54:17 2010  found 13148629 duplicates and 12455670 unique relations
Mon Oct 11 20:54:17 2010  memory use: 298.4 MB
Mon Oct 11 20:54:17 2010  reading ideals above 720000
Mon Oct 11 20:54:17 2010  commencing singleton removal, initial pass
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