Running GGNFS

[ET_]

I completed sieving my C104 with 4,6M relations on spairs.out

I tried to postprocess the file using Andy43 hints, (and "cat" instead of "copy" on my linux box) and all I got was a list of error-15: can't read relations.

Then I tried 10metreh's nfs2ms.pl file, but it was configured to run on Windows, while my msieve is on linux.

Finally, I tried to let factLat.pl script run on its own to complete factorization on GGNFS, and I got "Failed to open rels.bin.0 for read" (It was the first, the second, the third... run).

Any more hints?

Luigi

[henryzz]

using factlat.pl you will need to rename your data file spairs.add and then delete all the factlat.pl generated files except the poly file and spairs.add and then wait for it to do one short sieving run and then it should do the postprocessing

[bsquared]

Originally Posted by ET_

I completed sieving my C104 with 4,6M relations on spairs.out

I tried to postprocess the file using Andy43 hints, (and "cat" instead of "copy" on my linux box) and all I got was a list of error-15: can't read relations.

Then I tried 10metreh's nfs2ms.pl file, but it was configured to run on Windows, while my msieve is on linux.

Finally, I tried to let factLat.pl script run on its own to complete factorization on GGNFS, and I got "Failed to open rels.bin.0 for read" (It was the first, the second, the third... run).

Any more hints?

Luigi

Here's a script I use. The first argument should be the poly file. Then give it the name of all the data files. For example if your poly file is named gnfs.poly and you have a bunch of gnfs_0.dat, gnfs_1.dat, etc then do:

% perl make_msieve.pl gnfs.poly gnfs*.dat

It will make everything you need to run msieve.

best,
- ben.

oh, and rename the file to .pl

[Andi47]

Is there a "run at idle priority" option for gnfs-lasieve4I1*e?

[fivemack]

"run at idle priority" is something to be done by the command-line interpreter not the executable:

start /low gnfs-lasieve4I15e ... (in cmd on Windows)
nohup nice -19 gnfs-lasieve4I15e ... (on Unix)

[xilman]

Originally Posted by jasonp

No, they are for unix systems. On windows you can bring up the task manager, right click on the process you want to set to idle, then select idle priority. You have to do that every time you restart the process; no doubt there are other programs that make the choice permanent.

Actually, I think you;ll find that the start /low variant is for a Windows CMD window.


Paul

[jasonp]

Originally Posted by xilman

Actually, I think you;ll find that the start /low variant is for a Windows CMD window.

Oops, I saw the 'nohup' line and stopped reading.

[ET_]

Originally Posted by bsquared

Here's a script I use. The first argument should be the poly file. Then give it the name of all the data files. For example if your poly file is named gnfs.poly and you have a bunch of gnfs_0.dat, gnfs_1.dat, etc then do:

% perl make_msieve.pl gnfs.poly gnfs*.dat

It will make everything you need to run msieve.

best,
- ben.

oh, and rename the file to .pl

That worked! thank you very much, Ben!

Luigi

[bsquared]

Originally Posted by ET_

That worked! thank you very much, Ben!

Luigi

No problem, glad it helped. I think I originally got that script from fivemack when I was first learning how to use GGNFS. Good to see others becoming interested as well.

Happy factoring!

[Jeff Gilchrist]

For those using Windows, I have working binaries for 32bit and 64bit Windows available using the latest GGNFS build 329 from SVN compiled with GMP 4.2.4 optimized for Core 2 systems (Visual Studio 2008).

Win32:
http://gilchrist.ca/jeff/ggnfs/ggnfs...in32-core2.zip

Win64:
http://gilchrist.ca/jeff/ggnfs/ggnfs...in64-core2.zip

Jeff.

[henryzz]

Originally Posted by Jeff Gilchrist

For those using Windows, I have working binaries for 32bit and 64bit Windows available using the latest GGNFS build 329 from SVN compiled with GMP 4.2.4 optimized for Core 2 systems (Visual Studio 2008).

Win32:
http://gilchrist.ca/jeff/ggnfs/ggnfs...in32-core2.zip

Win64:
http://gilchrist.ca/jeff/ggnfs/ggnfs...in64-core2.zip

Jeff.

could you email the links to the ggnfs mailing list
the latest that have been posted there are 322
posting here was a good idea as well though