[PARI] MPQS error message

[Philippe Elbaz-Vincent <mat910@sp2.power.uni-essen.de>]

Dear All,

what is the meaning of the following error message (and what should I do
to avoid this ?):

 ***   MPQS: could not open requested file /var/tmp/LPTMP.500.7242.

or 

 ***   MPQS: could not open requested file /var/tmp/FREL.500.7242.

the previous error message appears, for instance, with:

 factorint(10871200921861535)

notice that gp was called with the options -s 40000000 -p 10000000
(run under Intel PII/Linux 2.0.xx, and the PARI version is 2.0.11.beta)

NB: with the flag=1 (no MPQS) factorint works fine, but "issquarefree" (or
"core") use implicitly MPQS (no flags to suppress the call to MPQS)

thanking you in advance, Ph. 

Ph. Elbaz-Vincent, Marie-Curie Fellow,
DFG-Forschergruppe "Arithmetic and Geometry", FB 6, Mathematik,
Universitaet GH Essen, D-45117 Essen | Email:elbaz-vincent@uni-essen.de 
Phone: +49 201 183 2198 | Fax: +49 201 183 2426