Re: [Help-glpk] lp/mip preprocessor api

[Andrew Makhorin]

Hi Chris,


> Here is my suggestion, together with a patch to implement it: 
> 
> 
> I think it is useful to be able to perform step L2 more than once,
> i.e. to be able to call glp_npp_load_prob() after modifying the
> problem returned from glp_npp_build_prob() in order to update the PP
> workspace and continue preprocessing.
> 
> 
> The attached patch modifies glp_npp_load_prob() to allow this.
> 

Sorry, I don't catch your idea. The resulting (preprocessed) problem
always resides in the PP workspace, so one can preprocess it in several
passes, if necessary.


Andrew Makhorin