Re: [Help-glpk] Requesting for help

[Heinrich Schuchardt]

Hello Megersa,

if your problem is infeasable than with and without presolver there
simply is no solution to retrieve.

If you are calling GLPK via the API you could use glp_get_unbnd_ray() to
determine which variable causes your problem to be infeasable. Next you
could relax the constraints on this variable.

Best regards

Heinrich

On 05/11/2018 08:28 PM, Megersa Tesfaye wrote:
> Hi, I develop a CLEWS model for Ethiopia as my PhD dissertation and when
> I run a model it says,there is no Primal feasible, use nopresol to have
> actual solution. my question is how can I use nopresol to get actual
> solution until I iterate the parameters and make the solution feasible.
> Love to hear from you
> 
> */Megersa Tesfaye
> /*
> */PhD Candidate(Water Resources Engineering),/*
> */M.SC <http://M.SC> in Hydrology & Water Resources /   B.SC
> <http://B.SC> in Civil Engineering  /    B.SC <http://B.SC> in SWC Eng.
> /*
> */Mobile: 0911724512 / 0909789583/*
>          
> 
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