Discussion related to cado-nfs

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

On Wed, Aug 17, 2022 at 10:32:00PM +0800, 肖梓健 wrote:
> [...]
> Error:Generate Free Relations:  terminate called after throwing an instance 
> of 'std::overflow_error'
> Error:Generate Free Relations:    what():  p_r_values_t is too small to 
> store ideals, recompile with FLAGS_SIZE="-DSIZEOF_P_R_VALUES=8"
> Error:Generate Free Relations:
> [...]
> 
> Hi, developers of cado-nfs.
> 
> Error occurred when I computing discrete logrithms in GF(p^4), but I have 
> no idea how to solve it. Could you give me some tips?
> 
> Best regards,
> 
> Zijian Xiao

Hello,

As the error message says, you need to recompile after adding
FLAGS_SIZE="-DSIZEOF_P_R_VALUES=8" to your local.sh.

But don't expect too much support from us for a GF(p^4) computation.
Nothing is automatic, and theoretical problems can meet practical
questions, in particular for the individual logarithm step.

Regards,
Pierrick