Re: bnfinit perhaps getting stuck?

[Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr>]

On Wed, May 14, 2008 at 08:09:18PM +0000, Phil Carmody wrote:
> --- On Wed, 5/14/08, Bill Allombert <Bill.Allombert@math.u-bordeaux1.fr> wrote:
> > You are using the stable version. Due to several improvement (in
> > particular 2.4.0F4 and the new LLL code) I would suggest
> > you try the SVN version but actually, I should rather suggest you
> > to give up because I do not think this can finish.
> 
> I'm up for still hacking away at it if it's still needed [task requestor bcc:d]
> I don't have SVN, but can grab 
> Development version: pari-2.4.2.alpha.tar.gz,  2183 KBy, Dec 23 00:58:07 2007 
> from the website.

We provide a CVS gateway and a web gateway to the SVN repository that
should dispense you from using SVN. Version 2.4.2 does not have the new
LLL code.

> > Using \g1 is generally sufficient and keep the logs readable.
> > You can try
> > grep cglob <your log> 
> > or if this is too verbose
> > grep needed <your log>
> > to get a measure of progress.
> 
> Ah, that's very useful to know. It appears that I was making steady progress:
> """
> (more relations needed: 171)
> ++++ cglob = 2452: new relation (need 2622)
> ++++ cglob = 2453: new relation (need 2622)
> ...
> ++++ cglob = 2470: new relation (need 2622)
> ++++ cglob = 2471: new relation (need 2622)
> ^C
> """
> 
> Extrapolating how long I ran that most recent verbose run, and how
> long I ran the original, I would have expected to have found 171
> relations. Is the hard and non-deterministic work all done after the
> requisite number of relations is found?

Not really, but the problem is to find _useful_ relations, and sometime
we find a lot of useless relations that artificially inflate the cglob
number and slow down the process (that is something I try to fix).

Look at the rate the number after 'more relations needed' is decreasing.

171 is not to bad, so maybe you will succeed. I will try it with my 
patches.

Cheers,
Bill.