Using an option file for a subsolver of SBB

GAMS
1

Hello everyone,
While solving a MINLP program using SBB- CONOPT, non-linear variable is exceeding the maximum limit i.e 1E+10. This limit can be increased by using option file conopt.opt and setting rtmaxv at higher value.I am unable to use option in the source file.if anyone can help in this regard, it will be very helpful for me.

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2

There are two steps:



You have to tell SBB to use an option file in the usual way with “.optfile=1;” before the solve.

You have to create an option file (sbb.opt) where you tell which NLP solvers you want for the root and the sub-models and that you want the NLP solver to use an option file. This is done with sbb.opt:



Rootsolver conopt.1

Subsolver conopt.1



Where “.1” is similar to “optfile=1”.



Good luck



Arne


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Arne Stolbjerg Drud

ARKI Consulting & Development A/S

Bagsvaerdvej 246A, DK-2880 Bagsvaerd, Denmark

Phone: (+45) 44 49 03 23, email: adrud@arki.dk



From: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] On Behalf Of shpooja26@gmail.com
Sent: Sunday, June 28, 2015 7:39 AM
To: gamsworld@googlegroups.com
Subject: Using an option file for a subsolver of SBB



Hello everyone,

While solving a MINLP program using SBB- CONOPT, non-linear variable is exceeding the maximum limit i.e 1E+10. This limit can be increased by using option file conopt.opt and setting rtmaxv at higher value.I am unable to use option in the source file.if anyone can help in this regard, it will be very helpful for me.


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3

Thank you.

On Monday, June 29, 2015 at 12:34:40 PM UTC+5:30, shpo...@gmail.com wrote:

Hello everyone,
While solving a MINLP program using SBB- CONOPT, non-linear variable is exceeding the maximum limit i.e 1E+10. This limit can be increased by using option file conopt.opt and setting rtmaxv at higher value.I am unable to use option in the source file.if anyone can help in this regard, it will be very helpful for me.

–
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