20081014, 08:22  #1 
(loop (#_fork))
Feb 2006
Cambridge, England
13×491 Posts 
3221^731 sieving
Polynomial file is below
Code:
n: 3762417971112081220095196299015453579204743076262721175557307866835982313083323950322956026874886179059958104863089358770552434166984658821437838082376922335605302026116301206397054337279339461381076889146727871533242827472031146921363109621830525548633 c6: 3221 c0: 1 Y1: 1 Y0: 1247063872385372731496678575404593456513041 type: snfs skew: 0.26 rlambda: 2.6 alambda: 2.6 alim: 75000000 rlim: 75000000 lpbr: 31 lpba: 31 mfbr: 62 mfba: 62 14/11/2008: sieving is going pretty well, probably not worth making more reservations above 102 or below 37. We're nearly halfway to the desired number of relations in exactly one month 17/11/2008: after a bit more consideration of the quite high duplication rate, let's make that range 30110 09/12/2008: the processing starts tonight Code:
fivemack 3644 (done) fivemack 4451 (done) fivemack 5152 (rat) (done) andi47 5152 (alg) bsquared 5255 (done) fivemack 5565 (done) batalov 6570 (done) bsquared 7075 (done) fivemack 7578 (done) FactorEyes 7879 (done) andi47 7981, algebraic side only (done) fivemack 7981, rational side only (done) FactorEyes 81100 (done) ZetaFlux 100102 (done) fivemack 102110 (done) Code:
R 36110 A 36110 26/10/2008 23:45 11362879 relations 28/10/2008 21:18 33029988 relations (thanks mostly to bsquared) 14/11/2008 20:13 95238553 relations, 84650728 unique 22/11/2008 15:31 Rside 73195362 relations, 68944435 unique Aside 57017031 relations, 52702109 unique together 131431009 relations, 110045276 unique 01/12/2008 21:45 Rside 98765072 relations, 90352435 unique Aside 86319328 relations, 77991055 unique together 185084400 relations, 149546079 unique weight of 16235147 cycles is about 1136477721 (70.00/cycle) Last fiddled with by fivemack on 20081209 at 17:20 Reason: the pancakes are stacking quite high now 
20081014, 10:24  #2  
Oct 2004
Austria
9B2_{16} Posts 
Quote:
1.) How much RAM does this sieving job take? 2.) How many relations will we need approximately? 3.) You take 7578 on both sides? Last fiddled with by Andi47 on 20081014 at 10:27 Reason: added 3rd question 

20081014, 10:51  #3 
(loop (#_fork))
Feb 2006
Cambridge, England
13·491 Posts 
1) on Linux, 653MB VSZ and 283MB RSZ for each job
2) about two hundred million 3) yes Last fiddled with by fivemack on 20081014 at 10:52 
20081014, 11:40  #4 
Oct 2004
Austria
2×17×73 Posts 
reserving 7981 on algebraic side
Edit: I think this should take me approx. 3 to 4 weeks. Last fiddled with by Andi47 on 20081014 at 11:45 
20081014, 13:29  #5 
Mar 2004
Belgium
29^{2} Posts 
Hi,
If I would reserve a range, do I have to adapt both numbers or how should I set a range?? Thank you. Regards Cedric alim: 75000000 rlim: 75000000 
20081014, 13:49  #6 
Oct 2004
Austria
100110110010_{2} Posts 
Benchmark
5000 Q take approx. 2 hours on a Core2Duo at 1800 MHz, so 2MQ take approx. 33 days. (1 thread, 32 bit windows). The job uses ~330MB Ram.
Last fiddled with by Andi47 on 20081014 at 13:57 Reason: added RAM useage 
20081014, 13:55  #7  
Oct 2004
Austria
4662_{8} Posts 
Quote:
then type into your command line: Code:
gnfslasieve4I15e o <outputfile> a 3221_73.poly f <start of your range> c <length of your range> (for my range of 7981 algebraic, I typed gnfslasieve4I15e o 3221_73_79.81 a 3221_73.poly f 79000000 c 2000000) P.S.: You don't need to change rlim and alim as long as you don't sieve below the rlim and alim values. Last fiddled with by Andi47 on 20081014 at 13:58 

20081014, 14:22  #8 
Oct 2006
vomit_frame_pointer
168_{16} Posts 
Range convention?
Is there some reason we're skipping 7879?
EDIT: I'll take 7879, as well as 81100, both sides. Last fiddled with by FactorEyes on 20081014 at 15:03 
20081014, 14:27  #9 
"Ben"
Feb 2007
41·83 Posts 
I'll take 7075 A+R

20081014, 15:44  #10  
May 2003
7×13×17 Posts 
Quote:
Also, is there a good website for downloading a precompiled version of gnfs for Windows XP? 

20081014, 15:55  #11  
"Ben"
Feb 2007
3403_{10} Posts 
Quote:
Quote:
This might work for you: http://www.mersenneforum.org/showpos...97&postcount=8 Last fiddled with by bsquared on 20081014 at 15:58 Reason: output files note... 

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