Discussion related to cado-nfs

[Paul Zimmermann <Paul.Zimmermann@inria.fr>]

       Hi Tom,

this is strange. Please try to change line 5020 of cadotask.py from:

                dep = self.state.get("next_dep", 0)

to:

                dep = 34

Or you can run the sqrt command by hand as follows, assuming your computer
has 8 cores:

/usr/local/lib/cado-nfs-3.0.0/sqrt/sqrt -poly /tmp/cado.xqnxt6gq/c125.poly 
-prefix /tmp/cado.xqnxt6gq/c125.dep.gz -dep 34 -t 8 -side0 -side1 -gcd

Best regards,
Paul

> Date: Sat, 16 Apr 2022 21:16:14 -0700
> User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101
>  Thunderbird/91.7.0
> From: "Thomas D. Dean" <tomdean@wavecable.com>
> 
> On 4/16/22 10:41, Thomas D. Dean wrote:
> 
> In attempting to factor a 123 digit number, sqrt seems to be looking for 
> dep 40 when the deps range from 0 to 33;
> 
>    Error:Square Root: Command line was: 
> /usr/local/lib/cado-nfs-3.0.0/sqrt/sqrt -poly 
> /tmp/cado.xqnxt6gq/c125.poly -prefix /tmp/cado.xqnxt6gq/c125.dep.gz -dep 
> 40 -t 8 -side0 -side1 -gcd > /tmp/cado.xqnxt6gq/c125.sqrt.stdout.7 2> 
> /tmp/cado.xqnxt6gq/c125.sqrt.stderr.7
> 
>    Error:Square Root: Stderr output (last 10 lines only) follow (stored 
> in file /tmp/cado.xqnxt6gq/c125.sqrt.stderr.7):
> 
>    Error:Square Root: 
> /usr/local/lib/cado-nfs-3.0.0/sqrt/sqrt.r4f80363c7+ -poly 
> /tmp/cado.xqnxt6gq/c125.poly -prefix /tmp/cado.xqnxt6gq/c125.dep.gz -dep 
> 40 -t 8 -side0 -side1 -gcd
> 
>    Error:Square Root:   Warning: dependency 40 does not exist, reducing 
> the number of threads to 0
> 
>    Error:Square Root:   Error, no more dependency
>    Error:Square Root:
> 
> The files range from
> c125.dep.000.gz       to c125.dep.033.gz
> c125.dep.side0.000.gz to c125.dep.side0.033.gz
> c125.dep.side1.000.gz to c125.dep.side1.033.gz
> 
> Tom Dean
>