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[cado-nfs] Discussion related to cado-nfs


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  • From: N <factorn@pm.me>
  • To: "cado-nfs@inria.fr" <cado-nfs@inria.fr>
  • Subject: [cado-nfs] Discussion related to cado-nfs
  • Date: Wed, 22 Dec 2021 03:25:59 +0000
  • Authentication-results: mail2-smtp-roc.national.inria.fr; spf=None smtp.pra=factorn@pm.me; spf=Pass smtp.mailfrom=factorn@pm.me; spf=Pass smtp.helo=postmaster@mail-4316.protonmail.ch
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Hello,

I compiled from master branch ( commit: d7ccce67fbf4 ). Build success on Ubuntu 20.04. There are some numbers that give an error, upon closer look the error message is:


/Git/cado-nfs$ time ./cado-nfs.py 108725311124863713831801731901593
Traceback (most recent call last):
  File "./cado-nfs.py", line 144, in <module>
    parameters, db = toplevel_params.get_cooked_parameters()
  File "/Git/cado-nfs/./scripts/cadofactor/toplevel.py", line 1175, in get_cooked_parameters
    self.set_N_paramfile_workdir()
  File "/Git/cado-nfs/./scripts/cadofactor/toplevel.py", line 647, in set_N_paramfile_workdir
    self.args.parameters = self.find_default_parameter_file()
  File "/Git/cado-nfs/./scripts/cadofactor/toplevel.py", line 186, in find_default_parameter_file
    raise RuntimeError("no parameter file found"
RuntimeError: no parameter file found for c33 (tried c33, c35)

Same message on trying to factor 151132207742640142005548601981029.

Incidentally, I cannot get Tag 2.3.0 to compile on my system running Ubuntu 20.04. I am compiling with gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0, so many errors.
Has anyone actually tried to compile that version with a modern Compiler on a recent OS? I saw documentation using GCC 4.7.2, see https://cado-nfs.gitlabpages.inria.fr/.
Surely the latest compilers will have a drastic difference in performance.

Thank you.

-N





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