Discussion related to cado-nfs

[Pierrick Gaudry <pierrick.gaudry@loria.fr>]

Dear Thomas,

When preparing the 1.1 release, we had some problem with gcc 4.2.1.
See commit 18fd580, for instance.

If you don't use the 1.1, you have probably hit the same bug, and
upgrading cado-nfs should work.

If you are using the 1.1, then I strongly suspect that our fix was not
enough to work around all the bugs of gcc 4.2.1, and upgrading gcc is
likely to solve your problem. (in that case, please tell us, so we can
update the "known problems" section of the README).

Best regards,
Pierrick


On Mon, Dec 19, 2011 at 07:01:41PM -0800, Thomas D. Dean wrote:
> FreeBSD 9.0(RC2)
> 
> # gcc --version
> gcc (GCC) 4.2.1 20070831 patched [FreeBSD]
> # g++ --version
> g++ (GCC) 4.2.1 20070831 patched [FreeBSD]
> 
> # factor.sh 
> 29660315107707419730868412471562256052529450176606958716148375177732039155423000975802956417478242327887011509464164441826551209047591
> -t 4
> /usr/local/bin/cadofactor.pl /tmp/cado.n9OaLQvhzf/param 
> n=29660315107707419730868412471562256052529450176606958716148375177732039155423000975802956417478242327887011509464164441826551209047591
> bindir=/usr/local/bin parallel=0 sieve_max_threads=4
> poly_max_threads=4 nthchar=4 bwmt=2x2 wdir=/tmp/cado.n9OaLQvhzf
> sievenice=0 selectnice=0 logfile=/tmp/cado.n9OaLQvhzf/out
> Info:--------------------------------------------------------------------------
> Info:Initialization
> Info:--------------------------------------------------------------------------
> Info:Reading the parameters...
> Info:Initializing the working directory...
> Info:--------------------------------------------------------------------------
> Info:Polynomial selection
> Info:--------------------------------------------------------------------------
> Info:Total interval coverage:   0 %.
> 
> <snip>
> 
> Info:Starting job: 1980000000 2000000000
> Info:Total interval coverage: 100 %.
> Info:All done!
> Info:The best polynomial is from `c134.kjout.580000000-600000000' (E
> = 3.02e-11).
> Info:Generating factor base...
> Info:Computing free relations...
> Info:--------------------------------------------------------------------------
> Info:Sieve
> Info:--------------------------------------------------------------------------
> Info:Checking previous files...
>     Info:Imported     8690 relations from `c134.freerels.gz'.
> Info:Running total: 8690 relations.
> Info:Starting job: 16000000 16020000
>     Error:Command `env nice -0 /usr/local/bin/sieve/las -I 13 -poly
> /tmp/cado.n9OaLQvhzf/c134.poly -fb /tmp/cado.n9OaLQvhzf/c134.roots
> -q0 16000000 -q1 16020000 -mt 4 -out
> /tmp/cado.n9OaLQvhzf/c134.rels.16000000-16020000.gz > /dev/null
> 2>&1' terminated unexpectedly with exit status 0.
> FAILED ; data left in /tmp/cado.n9OaLQvhzf
> 
> I saved all the files in /tmp.
> 
> What may I do to help find the cause of this?
> 
> tomdean
> 
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