22-01-2018, 09:55 PM
(22-01-2018, 01:13 PM)fg Wrote: Very well, I think this discussion goes into the right direction
To sum it up shortly:
We all agree that it does not make any sense to run an infeasible model! Thus, if TIMES notices that infeasible equations had been set up, somethings needs to be done before the model run. When it comes to the capacity equation, currently, TIMES removes infeasible bounds by replacing them with the maximum installed capacity, but it does so silently i.e. without letting the user know.
In a first step, it could be good to integrate a warning into the GAMS\WrkTIMES\QA_Check.log file indicating which bounds have been removed or replaced.
In a second step, it would be nice if VEDA-FE could report a non-empty QA_Check.log file.
Fabian, small correction: I think it does make sense to run a small infeasible model for educational purposes. The infeasibility finder would let the user know which values make the model infeasible which in turn will give an opportunity for reflection. ;-)