How to find out the default solvers used?

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Archiver
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How to find out the default solvers used?

Post by Archiver » 1 year ago


Hi,

i'm solving two models, one MIP and another that is an NLP.
how can i find out what are the default solvers that are used by GAMS to solve the models?

Thanks,
Sara

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Archiver
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Re: How to find out the default solvers used?

Post by Archiver » 1 year ago


Dear Sara!

In GAMS IDE

Left upper corner -> "file"
inside "option"
inside "solver"

Make Your choice!

All the best! Andre


28.04.2016, 18:25, "Sara Amr" :
> Hi,
>
> i'm solving two models, one MIP and another that is an NLP.
> how can i find out what are the default solvers that are used by GAMS to solve the models?
>
> Thanks,
> Sara
>
>
> --
> To unsubscribe from this group and stop receiving emails from it, send an email to gamsworld+unsubscribe@googlegroups.com.
> To post to this group, send email to gamsworld@googlegroups.com.
> Visit this group at https://groups.google.com/group/gamsworld.
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With kindly regards!
Andre Savitsky
E-mail:andresavit@yandex.ru
andre_savit@yahoo.com


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Archiver
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RE: How to find out the default solvers used?

Post by Archiver » 1 year ago


Hi Sara



- You can see in the GAMSIDE what the available solvers are: File – Options – Solver. Those with a dot are available (those with – not). You can set the default solver for a specific problem (e.g. NLP) by clicking on the dot in the line with your solver of preference. I suppose GAMS just takes the first solver in the line.

- You can run gamsinst.exe (even if GAMS is already installed) from your GAMS directory and it will show the solvers it chooses as default.

- If you don’t explicitly choose one either in the GAMSIDE or using gamsinst.exe, and you want to solve your model with a non-default solver you can use an option in your model file specifying the solver. (e.g. Option nlp = PATHNLP;)



Hope this helps

Cheers

Renger





From: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] On Behalf Of Sara Amr
Sent: Thursday, April 28, 2016 5:25 PM
To: gamsworld
Subject: How to find out the default solvers used?



Hi,



i'm solving two models, one MIP and another that is an NLP.

how can i find out what are the default solvers that are used by GAMS to solve the models?



Thanks,

Sara

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