Hi i am master student in Operation Research,i am preparing my master thesis and I’m new using GAMS. I had to learn the
program because I’m developing a model for gas transportation by pipelines.
I’m writting in this forum because I’ve a problem with DICOPT.
The model developed is parametrized with a variable called Y , and
what I do is make an optimizationthe energy consumpted by compression station,
DICOPT reports the following sentence: “The relaxed NLP was infeasible,please check your model and make sure it solves correctly as an RMINLP problem”.
it gives me a continious variables however it must be integer.
What can I do for this problem?
Help me please!!
thanks and best regards!!
PS: I’m using as a solvers
CPLEX: LP
CONOPT: NLP
DICOPT: MINLP
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Le mardi 14 avril 2015 11:07:48 UTC+2, soumia Bouchenine a écrit :
Hi i am master student in Operation Research,i am preparing my master thesis and I’m new using GAMS. I had to learn the
program because I’m developing a model for gas transportation by pipelines.
I’m writting in this forum because I’ve a problem with DICOPT.
The model developed is parametrized with a variable called Y , and
what I do is make an optimizationthe energy consumpted by compression station,
DICOPT reports the following sentence: “The relaxed NLP was infeasible,please check your model and make sure it solves correctly as an RMINLP problem”.
it gives me a continious variables however it must be integer.
What can I do for this problem?
Help me please!!
thanks and best regards!!
PS: I’m using as a solvers
CPLEX: LP
CONOPT: NLP
DICOPT: MINLP
Help me please!!
–
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To post to this group, send email to gamsworld@googlegroups.com.
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For more options, visit https://groups.google.com/d/optout.