mersenneforum.org Team sieve #43: C164 from 4788:i5194 -- FINISHED
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 2014-01-10, 00:39 #1 RichD     Sep 2008 Kansas 32×353 Posts Team sieve #43: C164 from 4788:i5194 -- FINISHED Tracking Aliquot Sequence 4788 index 5194. Code: # sieve with ggnfs lasieve4I14e on the -a side from 30M to 114M # aq4788:5194 n: 56336747150380626438276754902488766416020903744837900647138061605999767753078104418680167689142175489355492712257458624526631830323402854770850021959017408855080521 # size 5.496e-016, alpha -7.363, combined = 7.985e-013 rroots = 3 skew: 111313596.81 c0: 2904896119859058264406991009861093144150400 c1: -64638219915023936469554866040149272 c2: -3017144413645332474429006886 c3: 20234230792711171585 c4: 171065306604 c5: 432 Y0: -167132767303944628800670041934723 Y1: 262569407971517 rlim: 60000000 alim: 60000000 lpbr: 31 lpba: 31 mfbr: 62 mfba: 62 rlambda: 2.6 alambda: 2.6 Poly generated by: Alfred Post-processing by: ??? Run the siever using the following command: Code: gnfs-lasieve4I14e -a 4788_5194.poly -o -f -c  Add the -v switch if you want to see status updates every few seconds. (I like to watch the progress.) In case a restart is needed in the range, add the -R switch. (All range numbers must be full decimal representations. i.e., 42M = 42000000) Since ggnfs is single thread, multiple copies need to be run at the same time to utilize multiple cores. Be sure to use a different output_file_name for each range. Something like 4788_42M.rels as signifying the starting point. The output files can be placed at any of the file sharing services: DropBox, RapidShare, SendSpace, etc. To start things off I'll take 30-38M. Last fiddled with by RichD on 2014-01-10 at 00:54 Reason: correct syntax
2014-01-10, 00:50   #2
schickel

"Frank <^>"
Dec 2004
CDP Janesville

2×1,049 Posts

Quote:
 Originally Posted by RichD Tracking Aliquot Sequence 4788 index 5194. Poly generated by Alfred Post-processing by: ???
I'm in the middle of a couple of large jobs of my own, but I can take the post-processing on.

2014-01-10, 01:03   #3
RichD

Sep 2008
Kansas

61518 Posts

Quote:
 Originally Posted by schickel I'm in the middle of a couple of large jobs of my own, but I can take the post-processing on.
This will take a while since my estimate will require a little over 200M rels.

There was a slight improvement to get a 30-bit job using 3LP but it needed the 15e siever. This would have removed NFS@H from the mix should they decide to jump in.

Last fiddled with by RichD on 2014-01-10 at 01:05 Reason: add "would have"

 2014-01-10, 09:28 #4 Wick   Nov 2012 10010002 Posts I have never done this before, but I would like to have a go. I have no idea how long this is going to take so is 1M a good start? If so then I'll take 38-39M Edit: Ok I'm guessing I'm doing something wrong. I'm starting with: gnfs-lasieve4I14e -a 4788_5194.poly -o 4788_5194_38_39.txt -f 38000000 -c 1000000 -v After that it outputs: Warning: lowering FB_bound to 37999999. FBsize 2320767+0 (deg 5), 3562113+0 (deg 1) And then it crashes. Maybe my version is too old? The date stamp is from 2009 (Found a zip file on my system with svn version 374). If so, where can I get a newer version? This version is the one used by Yafu btw. Last fiddled with by Wick on 2014-01-10 at 09:39
 2014-01-10, 12:34 #5 Wick   Nov 2012 23·32 Posts Ok I have it working I think. Downloading new version of ggnfs and reordering the parameters made it work (I think) output: Code: gnfs-lasieve4I14e -o 4788_5194_38_39.txt -f 38000000 -c 1000000 -v -a 4788_5194.poly gnfs-lasieve4I14e (with asm64): L1_BITS=15, SVN $Revision$ Warning: lowering FB_bound to 37999999. FBsize 2320767+0 (deg 5), 3562113+0 (deg 1) total yield: 189, q=38000107 (0.06913 sec/rel; ETA 33h36m)
 2014-01-10, 13:45 #6 prgamma10     Jan 2013 1558 Posts Reserving 41-48M. Last fiddled with by prgamma10 on 2014-01-10 at 14:09
2014-01-10, 22:55   #7
RichD

Sep 2008
Kansas

C6916 Posts

Quote:
 Originally Posted by prgamma10 Reserving 41-48M.
Did you only mean to take 7M?
(Maybe the other core is busy with something else.)

 2014-01-12, 06:50 #8 Batalov     "Serge" Mar 2008 Phi(4,2^7658614+1)/2 217068 Posts I take all the rest. And I will finish the algebra.
 2014-01-12, 10:56 #9 Batalov     "Serge" Mar 2008 Phi(4,2^7658614+1)/2 2×19×241 Posts It is done. The driver changed into 25 · 32, only to come back two iterations later. The size is now 188, the cofactor is c178 and it is ~t50'd. If there's still interest in this sequence, go on with more 110e6 curves.
2014-01-12, 11:09   #10
schickel

"Frank <^>"
Dec 2004
CDP Janesville

2·1,049 Posts

Quote:
 Originally Posted by Batalov I take all the rest. And I will finish the algebra.

Quote:
 Originally Posted by Batalov It is done. The driver changed into 25 · 32, only to come back two iterations later.
Quote:
 The size is now 188, the cofactor is c178 and it is ~t50'd. If there's still interest in this sequence, go on with more 110e6 curves.

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