[IPOL discuss] simultaneous execution of same demo

[José Luis Lisani Roca]

Dear all,

I would like to raise (again) the issue of simultaneously running two or 
more instances of
the same demo. As some of you have probably noticed, simultaneous runs 
tend to mix their results
(you open an image and end up with the results for the image opened by 
another user).

As long as IPOL demos are not extensively used, the probability of such 
an event is low.
But some demos are likely to be run by many people at the same time 
(i.e. CNES demos on
satellite images).

Does somebody know how to solve the problem? (Nicolas?)
Is it possible to "lock" the demo while being used (the time between you 
click the run button until you
get the results), in order to prevent these problems to happen?

Best,
José Luis