Discussion related to cado-nfs

[Nicolas RUFF <nicolas.ruff@gmail.com>]

Well, 3.1 GB of data survived, so I guess there might be something to recover :) Thanks for your help!

$ tree

.

├── c154.db

├── c154.db-shm

├── c154.db-wal

├── c154.log

├── c154.upload

│   ├── c154.sieving.45250000-45260000.ptmcec.gz

│   ├── c154_sieving_45250000-45260000.ur9l6a.stderr0

│   ├── c154_sieving_45260000-45270000.3dnvh2.stderr0

│   ├── c154.sieving.45260000-45270000.a7meqg.gz

│   ├── c154.sieving.45270000-45280000.8z3k2c.gz

│   ├── c154_sieving_45270000-45280000.sv_s9h.stderr0

│   ├── c154_sieving_45280000-45290000.iibaeg.stderr0

│   ├── c154.sieving.45280000-45290000.u8f4mv.gz

│   ├── c154_sieving_45290000-45300000.5a9lxo.stderr0

│   ├── c154.sieving.45290000-45300000.izcnfd.gz

│   ├── c154.sieving.45300000-45310000.li1ax5.gz

...

│   ├── c154_sieving_77300000-77310000.9r6tx3.stderr0

│   ├── c154.sieving.77300000-77310000.kfi4j1.gz

│   ├── c154.sieving.77310000-77320000.17wx0w.gz

│   ├── c154_sieving_77310000-77320000.fwj74_.stderr0

│   ├── c154_sieving_77320000-77330000.a61ute.stderr0

│   └── c154.sieving.77320000-77330000.jsv5w0.gz

├── c154.wucmd

└── client

    ├── download

    │   ├── c154.factorbase.roots.gz

    │   ├── c154.polyselect2.poly

    │   ├── las

    │   ├── server.f1132bbe.pem

    │   └── WU.localhost

    └── localhost.work

        ├── c154.sieving.77330000-77340000.gz

        └── localhost.log

4 directories, 6428 files

On Tue, Sep 16, 2014 at 11:33 AM, Alexander Kruppa <alexander.kruppa@inria.fr> wrote:

----- Original Message -----
> From: "Nicolas RUFF" <nicolas.ruff@gmail.com>
> To: cado-nfs-discuss@lists.gforge.inria.fr
> Sent: Tuesday, 16 September, 2014 11:06:13 AM
> Subject: [Cado-nfs-discuss] What to do after a crash?
>
> Hello,
>
> Sorry for the newbie question. I have been running a quite long
> factorization job on my workstation, and for some reason it crashed after a
> few weeks.
> [...]
> OSError: [Errno 2] No such file or directory:
> '/tmp/cado.PgpD3dAfkM/c154.factorbase.roots.gz'
> FAILED ; data left in /tmp/cado.PgpD3dAfkM
>
> $ ls /tmp/cado.PgpD3dAfkM/
> c154.db  c154.db-shm  c154.db-wal  c154.log  c154.upload  c154.wucmd  client
>
> Now the question: is there any way to resume computation from the point it
> has stopped?
>
> Thank you,
> - Nicolas RUFF

There should be more files in the working directory than your "ls" command shows.
It is possible that a system housekeeping job has deleted some files in /tmp/.

The first thing I'd do is copy the contents of /tmp/cado.PgpD3dAfkM/c154.upload/
to somewhere safe; those files include the siever output files which are the most
computationally expensive part of the factorization.

Can you please send me the output of
cd /tmp/cado.PgpD3dAfkM/c154.upload/; ls
so I can tell which files may have been deleted and which remain? If any
substantial number of files survived, we can start a new factorization
and import the already existing files; if no or very few files remain,
I'm afraid the only real option is to start over from scratch.

Alex