Mode accelerator in Simulink and Windows 7 64-bits

Hi,... I have a model in Simulink which can run in normal model, however, in accelerator mode or real-time it doesn't work. It appears a message: "Unable to locate a Visual C/C++. Please define one of the following environment variables:Real-Time Workshop builds with Microsoft Visual C on 64-bit windows require that the compiler be installed". ... I have installed the newest version C++ compiler but I can't run the model yet.

Answer 1

[Kaustubha Govind]

Run "mex -setup" from MATLAB command prompt and choose the installed compiler.

Note: Make sure you have a supported compiler.

[Indira]

I have installed 3 different compilers which are in the page you showed me, but when I run "mex-setup" in the command window appears "None".

What can I do?

[Kaustubha Govind]

It is likely you didn't get the Visual Studio x64 Compilers and Tools (by default, only the 32-bit compilers get installed even on a 64-bit machine). See this solution for installation details: http://www.mathworks.com/support/solutions/en/data/1-6IJJ3L/?solution=1-6IJJ3L

[Indira]

Take a look of this:

"Sérgio Cruz" wrote in message <gt9kdh$hrv$[e-mail]>...

> "Jeff Koechling" <[e-mail]> wrote in message <gt7nfh$j6m$[e-mail]>...

> > Sergio,

> > Try setting environment variable VS80COMNTOOLS to the same value as VS90COMNTOOLS.

> > Jeff

> Jeff!

> It works!!!! Finally the accelerator is running in Simulink.

> Thanks a lot for your help! I owe you one :)

> Sergio

I think this is the solution, but I have another problem.

_____________________________________________________________________

Hi,

I have the same problem, I use Windows 7 64-bits, but I don't have VS80 neither VS90, I have VS100... What can I do to run accelerator mode??

Indira

[Kaustubha Govind]

What version of MATLAB are you using? It is best to get the supported compiler for that version (from list at http://www.mathworks.com/support/compilers/R2010b/win64.html). See the left panel for a "Support Compilers" under "Previous Releases" if you are using an older version. For example, R2010b does support VS 10.0. The restriction is because the mex options files are written for a subset of compiler versions. So if you are using an unsupported compiler, you will need to modify the mexopts file yourself.

[Indira]

I use Windows 7 64-bits, Matlab R2009a...

[Kaustubha Govind]

R2009a supports only Microsoft Visual C++ 2008 Express, which is the free version (full list here: http://www.mathworks.com/support/compilers/release2009a/) - I would recommend getting this version. Otherwise, you can create an options file for the newer version as described here: http://www.mathworks.com/matlabcentral/answers/1183-compiling-mex-files-with-visual-c-2010-with-matlab2009a

[Indira]

I've installed Microsoft Visual C++ 2008 Express... but it doesn't work... =(

I run mex -setup but nothing appears!!

It is possible that the environmental variables could be the solution??.. because it is related with the path..

[Kaustubha Govind]

Did you also follow instructions here to ensure that x64 compilers are installed (by default, only 32-bit compilers are installed): http://www.mathworks.com/support/solutions/en/data/1-6IJJ3L/?solution=1-6IJJ3L