Hi Ali
Your model status is infeasible and changing solver may not help you, Since its a Lp problem.
Probability The infeasibility can be made of tow source:
1-your Data
2- Equations “global” and “partial”
On Thu, Jul 12, 2012 at 4:23 PM, Leiby, Paul Newsome wrote:
Ali,
I believe the message “*** Status: Normal completionâ€
Is simply a message telling you that the run is done and the post-processing operation by GDXXRW completed normally.
In the log file, above that message, should be the report from your solver.
When I seek to solve your model by CONOPT, it reports infeasibilities.
**** SOLVER STATUS 1 Normal Completion
**** MODEL STATUS 4 Infeasible
The infeasibilities are associated with the equations GLOBAL and PARTIAL.
Perhaps another solver will report differently.
I hope this helps.
Paul
From: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] On Behalf Of Ali Zarrineh
Sent: Thursday, July 12, 2012 5:39 AM
To: gamsworld@googlegroups.com; aliz_t68@ymail.com
Subject: How is that possible? Although everything seems to be normal, one of the constraints is not satisfied!
Sorry to bother, i forgot to attach the code,
…
Dear GAMS freinds!
Hope you are all fine and OK.
I have wriiten a code with GAMS. Although it has been stated in the listing that:
*** Status: Normal completion
one of the constraints, say variables nonnegativity is not satisfied.
How can that be possible?!?!?
Does anyone have an idea?
Although i have set the constraints of non-negativity for the variables, i have some of them having the sign of “-” with them.
Let me know if you have any suggestion.
With all best wishes for you;
Looking enthusiastically forward for your response;
Ali
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