Solutions provided by SBB-CONOPT Global v/s Local optimal

GAMS
1

Dear all,
I have modeled my problem as mixed integer nonlinear programming (MINLP) which has been solved using sbb-CONOPT solver. There exists some other solvers for such nature of problems which may provide global solutions. My question is does this solver provide global optimality for some special cases? if yes, what are those?
How this solver for MINLP problems is preferable?
How can I justify the solution provided by the solver?

I will be highly thankful for any of your suggestions.

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2

Hi sharma,

If the functions of your problem are convex and the optimal solution you are searching for is minimal, the solution is global optimal solution, if the functions are concave and optimal solution is maximal, then it is also global optimal solution.

Regards,
Dylan

在 2013年12月18日星期三UTC+8上午12时02分48秒，kailash sharma写道：

Dear all,
I have modeled my problem as mixed integer nonlinear programming (MINLP) which has been solved using sbb-CONOPT solver. There exists some other solvers for such nature of problems which may provide global solutions. My question is does this solver provide global optimality for some special cases? if yes, what are those?
How this solver for MINLP problems is preferable?
How can I justify the solution provided by the solver?

I will be highly thankful for any of your suggestions.

–
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3

Thanks…


On Thu, Dec 19, 2013 at 6:55 AM, Dylan Lan wrote:

Hi sharma,

If the functions of your problem are convex and the optimal solution you are searching for is minimal, the solution is global optimal solution, if the functions are concave and optimal solution is maximal, then it is also global optimal solution.

Regards,
Dylan

在 2013年12月18日星期三UTC+8上午12时02分48秒，kailash sharma写道：

Dear all,
I have modeled my problem as mixed integer nonlinear programming (MINLP) which has been solved using sbb-CONOPT solver. There exists some other solvers for such nature of problems which may provide global solutions. My question is does this solver provide global optimality for some special cases? if yes, what are those?
How this solver for MINLP problems is preferable?
How can I justify the solution provided by the solver?

I will be highly thankful for any of your suggestions.

–
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\

Kailash Chand Sharma
Research Scholar
Electrical Engineering Department
Malaviya National Institute of Technology Jaipur
Phone: +91-9887221353 (M)

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