Originally posted by: apscomeup

Hi!
During solving linear problem have:
CPLEX Error 1016: Restricted version. Problem size limits exceeded.

What are the restrictions? How much variables? constraints?

Does the membership in IBM Initiative let get full task for non-commercial use?
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Originally posted by: SystemAdmin

> apscomeup wrote:
> Hi!
> During solving linear problem have:
> CPLEX Error 1016: Restricted version. Problem size limits exceeded.
>
> What are the restrictions? How much variables? constraints?

500 x 500 https://www.ibm.com/developerworks/forums/thread.jspa?messageID=14426839
>
> Does the membership in IBM Initiative let get full task for non-commercial use?

Yes (if you are faculty) http://www.ibm.com/developerworks/forums/thread.jspa?threadID=335577&tstart=0

/Paul

Mathematicians are like Frenchmen: whenever you say something to them, they translate it into their own language, and at once it is something entirely different. (Goethe)
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Originally posted by: Fatma Ahmed

Hi, I am having the same problem but I am using the latest version 12.8, so for this version what is the maximum number of variables and constraints?

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Hi

Up to 1000 variables and 1000 constraints.

But students and academics can use the academic initiative version for free and it is not limited

regards

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Originally posted by: Fatma Ahmed

I am already using the academic version and it is still limited for the number of variables, any recommendations?

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That means for some reason you are not using the academic version. The academic version has no limits whatsoever. If you see an error saying that you are using more than 1000 variables/constraints then you are using the community edition.

Maybe uninstall all CPLEX versions from your computer that are not academic versions.

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Originally posted by: Fatma Ahmed

I removed the non academic version then downloaded the academic version 12.8 and tried to integrate CPLEX into MATLAB, 2017 version but found the following error:

Invalid MEX-file 'C:\Program Files\IBM\ILOG\CPLEX_Studio128\cplex\matlab\x64_win64\cplexlink1280.mexw64': The specified module could not be found.

 

So is there any recommendation how to get this missing file?

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Did you check that the file is indeed missing? If you installed CPLEX correctly then it should be there.

Are you by any chance using the 32bit version of matlab?

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Originally posted by: Fatma Ahmed

I installed cplex_studio128.win-x86-64 and follow all instructions required.

For MATLAB, I use the 64 bit version.

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And does the file 'C:\Program Files\IBM\ILOG\CPLEX_Studio128\cplex\matlab\x64_win64\cplexlink1280.mexw64' exist?

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Originally posted by: Fatma Ahmed

No it doesn't exist, I didn't find it in the CPLEX files and want to know how to get it.

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That seems odd. What is the directory into which you did install CPLEX? That directory should have a cplex\matlab\x64_win64 subdirectory that contains the cplexlink1280.mexw64 file.

It should also have a file cplex\bin\x64_win64\cplex.exe. Does that file exist there?

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Originally posted by: Fatma Ahmed

The directory where the the CPLEX installed is 'C:\Program Files\IBM\ILOG\CPLEX_Studio128\cplex'

The bin folder includes the files in the attached picture.

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What is the size of your cplexlink1280.mexw64 file? (and like Mark said, what is your version of MATLAB?)

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Originally posted by: Fatma Ahmed

cplexlink1280.mexw64 file is missing and don't know how to get it.

MATLAB, 2017, 64 bit version

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The file is missing? Then something went wrong with your installation. The only way to get this file is via the installer.

Can you try to remove and then reinstall CPLEX? Did you get any errors from the installer?

Can you search the whole installation tree for cplexlink1280.mexw64? Just to make sure it is not in an unexpected place.

What files do you have in folder 'C:\Program Files\IBM\ILOG\CPLEX_Studio128\cplex\matlab\x64_win64'?

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Originally posted by: Fatma Ahmed

Ok I did it and found it and put the right path.

Still have the same error: Invalid MEX-file 'C:\Program Files\IBM\ILOG\CPLEX_Studio128\cplex\matlab\x64_win64\cplexlink1280.mexw64': The specified
module could not be found.

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Originally posted by: Fatma Ahmed

I rechecked and found that  I have the directory cplex\matlab\x64_win64 and contains the cplexlink1280.mexw64 file.

I don't have file cplex\bin\x64_win64\cplex.exe.

Should I include the content of cplex\matlab\x64_win64 into cplex\bin\x64_win64\cplex.exe? 

or the error appeared means anything else?

 

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It is expected that the file is in the 'matlab' directory, not in the 'bin' directory. And according to the error message you get from matlab, matlab is looking in the 'matlab' directory (which has the file). So it is odd that it does not find the file. Can you copy/paste the offending file name from the matlab error message and check with the command prompt that this file exists:

dir "<copy/paste the offending file name here>"

Just to make sure there is no typo or anything in the matlab environment setup.

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Originally posted by: Mark L. Stone

Perhaps this is due to an incompatibility due to using an excessively old version of MATLAB.  What version of MATLAB are you using?

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Originally posted by: Fatma Ahmed

MATLAB, 2017, 64 bit version

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