Yes, I tried to post the following message, but maybe I did something wrong and I replied just to Pete. Emiliano I've got the same error. There is a bug in a...
2618
chris2be8
Jul 26, 2010 10:10 pm
... What sort of CPU do you have. /proc/cpuinfo will contain details of what Linux thinks you have. Chris K...
2619
kevin762401
Aug 7, 2010 12:36 pm
I managed to get Msieve running. As far as I am aware, it uses the quadratic sieve for factoring large integers. Apologies for the question, but how does one...
2620
chris2be8
Aug 7, 2010 2:03 pm
... I assume you are trying to use factmsieve.py. If so the paths are set at about line 60 in it (depending which version you have). They need to be set to the...
2621
billrea65
Aug 11, 2010 7:11 pm
Hello, Does any one have a rough rule of thumb for converting a Murphy E value to an expected number of relations to factor a number by GNFS? Thanks Bill Rea...
2622
billrea65
Sep 8, 2010 5:16 pm
Hello, I'm trying to factor a C165 and factMsieve.pl keeps terminating with the following message: Return value 11. Updating job file and terminating... Does...
2623
shomareh666
Sep 8, 2010 5:16 pm
Hi I want to recompile ggnfs in VS 2008, but I receive this: " 1>Performing Custom Build Step 1>'nasm' is not recognized as an internal or external command, ...
2624
petequek
Sep 8, 2010 5:16 pm
... the same results. ... is a bug at ... (which ... gnfs-lasieve* binaries ... downloaded ... what Linux thinks you have. ... Here's the output from...
2625
Jeff Gilchrist
jeff.gilchrist
Sep 8, 2010 5:27 pm
... You need the nasm assembler. Here are Brian Gladman's instructions (you can find yasm.rules in the build.vc9 directory): Using the Assembler Based Build...
2626
br_gladman
Sep 8, 2010 9:02 pm
... You are using the build files in the build.vc\vc7 directory, which are for a very old version of Visual Studio. The files you need to build GGNFS with...
2627
chris2be8
Sep 9, 2010 3:16 pm
... It means the lattice siever terminated with rc 11. But I don't know why it would do that. What other messages come out before it terminates? And what is in...
2628
Prabhakar Balakrishna
prabhakar.balakrishna...
Sep 18, 2010 7:27 pm
Hi all I am facing some issues in installing and running factmsieve.py.I strictly followed all the steps mentioned at ...
2629
billrea65
Sep 18, 2010 7:27 pm
Chris, Thanks. It looks like the lattice siever is having troubles. I can't see exactly what's going wrong with it from the log files so I'll run in on the...
2630
Jeff Gilchrist
jeff.gilchrist
Sep 18, 2010 7:56 pm
On Thu, Sep 9, 2010 at 2:29 AM, Prabhakar Balakrishna ... What directory did you run python c:\NFS\factmsieve.py example If python installed correctly you...
2631
chris2be8
Sep 19, 2010 2:33 pm
What messages come out on the screen when you run it? What messages are in the log? Did it fail as soon as you started it or run for a while before failing? If...
2632
billrea65
Sep 20, 2010 6:55 am
Chris, Here's the error (below) which appeared from the lattice siever. It ran for quite a while on the command line before it died. I have 8 CPUs sieving and...
2633
Torbjörn Alm
torbjornalm
Sep 20, 2010 10:44 am
This happens sometimes for me too. If I restart the factoring, it ontinues normally. It sems to be some sporadic error in the lattice siever. One time I had ...
2634
Guirgis Sameh
guirgis.sameh
Oct 13, 2010 4:08 pm
Hi Does GGNFS suppots 1024 bits? if no, what is the alternative package. I know the time to factor 1024 bits is too much but I want to work on one step of...
2635
chris2be8
Oct 14, 2010 4:55 pm
... AFAIK it doesn't support 1024bit GNFS. No one has ever tried a number large enough to hit a limit of the software rather than a limit of sieving time or...
2636
David Willmore
davidwillmore
Oct 23, 2010 5:40 pm
I pretty much know zero about the math used in the final matrix reduction step in GGNFS, so I'll just throw this out. Is this of any use to us? ...
2637
djbroadhurst
Oct 23, 2010 8:58 pm
... "SDD" in http://www.cs.cmu.edu/~glmiller/Publications/Papers/KoutisApproaching-2010.pdf stands for "symmetric and diagonally dominant". The matrix of NFS...
2638
David Willmore
davidwillmore
Oct 23, 2010 9:38 pm
... Aww, shucks. Thanks for checking on this. Cheers, David...
2639
Jason Papadopoulos
jasonp@...
Oct 24, 2010 12:16 am
... Neither is it diagonally dominant. From what I remember this is a fancy term that means that Gauss elimination will be numerically stable even if partial...
2640
djbroadhurst
Oct 24, 2010 6:37 pm
... Strict diagonal dominance http://mathworld.wolfram.com/DiagonallyDominantMatrix.html ensures convergence of the Gauss-Seidel iteration ...
2641
eduardorb80
Nov 2, 2010 9:38 pm
Hi, Does anyone know where can I find some data/info about the MIPS-year related to each RSA-Number when factoring them with GNFS? Thanks in advance and best...
2642
chris2be8
Nov 9, 2010 5:54 pm
... Here are details of RSA190: http://mersenneforum.org/showthread.php?t=14177 And rsa180: http://mersenneforum.org/showthread.php?t=13392 Chris K...
2643
br_gladman
Feb 2, 2011 3:28 pm
I have just added a Visual Studio 2010 x64 build of the experimental sieve code to the GGNFS SVN on SourceForge. It does not crash but, sadly, it is not yet...
2644
rdeheer
Feb 12, 2011 8:26 pm
Hello, Does anyone know of a good fast Java version of a prime factor implementation? I need to factor very large numbers. Otherwise I might try jni, or...
2645
Jeff Gilchrist
jeff.gilchrist
Feb 12, 2011 8:32 pm
... How large is "very large"? How many digits? If the numbers have fairly small factors, you can find them with this Java implementation: ...
2646
Torbjörn
torbjornalm
Feb 12, 2011 8:37 pm
I have been running this little project for a couple of years, and I still have a number of composites, that are reasonable to attack. Thanks to efforts by...
