Reading GAMS solution information from Matlab

GAMS
1

Dear All,

I am trying to call GAMS in Matlab, and I have a problem in reading the solution information from Matlab.

I think I have done the set-up of the interface correctly. And I restarted a few times after the set-up.

I am using GAMS win64 24.2 and Matlab 2013b (64-bit).

Now I am able to run gms models using Matlab commands, and I can see the correct results printing in my command window. But I cannot run “gdxWhos”, “gdxInfo”, “gdxInfo MtoG”, and etc. Matlab keeps telling me they are undefined, or “error in gdxOpenRead”.

For example, I got error messages like
“Error using gdxInfo
error in gdxOpenRead”

Hope to hear your suggestions, thank you very much.

Best Regards,
Tian

\

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 http://groups.google.com/group/gamsworld.
For more options, visit https://groups.google.com/d/optout.

2

Hi Tian,

It is recommended to use the latest version of GAMS, see:
http://www.gams.com/download/

However, I suggest that you try to successfully reproduce the steps in the video link below?
https://www.youtube.com/watch?v=HPn_q8nlktE

See also:
http://support.gams-software.com/doku.php?id=matlab_and_gams:interfacing_optimization_and_visualization_software_via_the_gdxmrw_utilities

Best,
Toni


On Thursday, June 18, 2015 at 10:08:56 AM UTC+2, TIAN ZHANG wrote:

Dear All,

I am trying to call GAMS in Matlab, and I have a problem in reading the solution information from Matlab.

I think I have done the set-up of the interface correctly. And I restarted a few times after the set-up.

I am using GAMS win64 24.2 and Matlab 2013b (64-bit).

Now I am able to run gms models using Matlab commands, and I can see the correct results printing in my command window. But I cannot run “gdxWhos”, “gdxInfo”, “gdxInfo MtoG”, and etc. Matlab keeps telling me they are undefined, or “error in gdxOpenRead”.

For example, I got error messages like
“Error using gdxInfo
error in gdxOpenRead”

Hope to hear your suggestions, thank you very much.

Best Regards,
Tian

\

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 http://groups.google.com/group/gamsworld.
For more options, visit https://groups.google.com/d/optout.

3

Dear Tian

I have the same problem.
Did you solve it?
please help me.

Best Regards
Hamed

On Thursday, June 18, 2015 at 12:38:56 PM UTC+4:30, TIAN ZHANG wrote:

Dear All,

I am trying to call GAMS in Matlab, and I have a problem in reading the solution information from Matlab.

I think I have done the set-up of the interface correctly. And I restarted a few times after the set-up.

I am using GAMS win64 24.2 and Matlab 2013b (64-bit).

Now I am able to run gms models using Matlab commands, and I can see the correct results printing in my command window. But I cannot run “gdxWhos”, “gdxInfo”, “gdxInfo MtoG”, and etc. Matlab keeps telling me they are undefined, or “error in gdxOpenRead”.

For example, I got error messages like
“Error using gdxInfo
error in gdxOpenRead”

Hope to hear your suggestions, thank you very much.

Best Regards,
Tian

\

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 http://groups.google.com/group/gamsworld.
For more options, visit https://groups.google.com/d/optout.