Discussion related to cado-nfs

[David Bernier <david250@videotron.ca>]

I have in the recent past had CADO-NFS factor RSA-100, RSA-110 and RSA-120,
working with one Quad-Core Intel processors and the "-t 2", for "two 
threads"
option.

---

With the next number up, the RSA-129 challenge number first
published as a factoring challenge around 1977, there was
an error due to unavailable /tmp files :

[screen copy]
Info:Removing duplicates...
    Info:Number of relations left: 8239434.
Info:Removing singletons...
    Error:Cannot open `/tmp/cado.M9ilK0q3o3/c129.purged' for reading: 
No such file or directory.
FAILED ; data left in /tmp/cado.M9ilK0q3o3

real    4144m48.360s   // worked for 69 hours wall-clock time
user    7165m28.242s
sys    441m49.372s

I was wondering if the system might delete /tmp files after some period of
time, and if there's a command or commands to change this behaviour ...

My computer has Fedora 14, x86_64 architecture version, 4 GB RAM.

thanks,

David Bernier