Dear GGNFS users, I've had a great deal of success making use of the perl script and even running the programs independently to factor a fair number of ...
Is there any way to decrease memory usage in matbuild, I'm following using params: 1) C168 type: gnfs rlim/alim: 21m/20m lpbr/lpba: 30/30 Memory allocation...
... I'm having similar problems on a c143 with r/alim 14M Doing 228182 additions... Doing merge on chunk 7/9 (P0=13462091, P1=15705772)... Doing 73088...
Hello sashamkrt ... I hope so, in fact we depends heavily on the "quality" of the system memory management facility. The only solution, which can be useful - ...
... Have you tried reducing the -maxrelsinff parameter to matbuild? This should reduce the matbuild memory use, at the cost of increased matrix size in...
... Do you want to know how the GNFS *algorithm* works, or how the GGNFS *program* works? Others can comment on the latter; for the former, google Per Leslie...
Jason Papadopoulos
jasonp@...
Sep 10, 2006 1:04 am
1956
hello actually i want to understand GNFS in some simple manner the way it is presented in the Papers makes it too hard to understand for me. can you tell me...
Sorry, but there is no simple way to desribe NFS. It is the most complicated factoring method today and is more than 2 orders of magnitude more complex than...
... Indeed. If you understand how the quadratic sieve works, and can learn enough to know what a number field is, you're most of the way to understanding how...
Jason Papadopoulos
jasonp@...
Sep 11, 2006 2:10 am
1959
AFB up to 20000000 RFB up to 21000000 lbpa=30 lbpr=29 Why KeepFulls return 5+6 and 7+8 as FF and do not return 1+2 and 3+4 as FF? Example of relations (each...
... I suspect it's because the first two relation pairs contain rational large primes and the second two pairs do not. Relation-sets should not be considered...
Jason Papadopoulos
jasonp@...
Sep 14, 2006 2:53 pm
1961
Hi, -> ___________________________________________________________ -> | This is the factLat.pl script for GGNFS. | -> | This program is...
... n=50004256417062033737057453320309029598343026766333976630197250130209 60252270983976040893855310442440284878430147220615753833717652. Hi Igor, If this is...
... n=50004256417062033737057453320309029598343026766333976630197250130209 ... and ... I mistakenly pasted the wrong number. I should have noticed it's not ...
Hi, Can somebody do me a favor and send me a P4 Win32 binary of the latest version of matsave? I'm really in need for the autosave function. It's hard to...
Finally, after years of trying to puzzle out how modern polynomial selection for NFS worked from code alone, now there's a paper by Thorsten Kleinjung: ...
Jason Papadopoulos
jasonp@...
Oct 11, 2006 9:16 pm
1967
I hope you got a working binary OK. If memory is very tight then it may be best to use quite a long period between saves, 8 hours or more. The save file is...
It doesn't matter if an operation is done is background, foreground or middleground. A CPU operation takes X time, which is taken away from computing operation...
... Plenty of RAM. 12GB :-), but saving a couple of times a day is ok, as long as i don't loose over a week of work. I did get a binary but didn't get to test...
Hello, Jason! ... Access to file is restricted. Can someone please download the file and email it to me and/or put it in the 'Files' section? -- Best Regards, ...
The save file is created by writing a block of memory that matsolve is continually updating. The matsolve process can't update that memory until it has first...
Has anyone else had a problem with the lattice sieving failing on Power ? I get an error of the form: TD sieve on side 0: 18379 does not divide The code is...
Kleinjung's paper is loaded in the Files - papers section. He uses a clever trick to create nonmonic linear polynomials to speed things up, combining this with...
... For what it's worth, Bob Silverman believes this will be quite difficult, and the two cubics won't have a higher yield than base-m polynomials unless the...
Jason Papadopoulos
jasonp@...
Oct 27, 2006 5:25 pm
1975
Hi all I have just downloaded and started playing with ggnfs - thanks. Some newbie comments. 1. Code didn't compile as is due to missing tpie library....
... The Transparent Parallel IO Environment (http://www.cs.duke.edu/TPIE) is a collection of C++ classes that let you treat huge datasets resident on disk as...
Jason Papadopoulos
jasonp@...
Oct 28, 2006 1:50 pm
1977
... Solution: set ... for TPIE ... (http://www.cs.duke.edu/TPIE) ... This one bit also bit me the last time I built GGNFS from scratch. Rather annoying when...
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