Using Matlab 32 and 64 bit on one computer, how to save the settings in another place?

Question

For various reasons, I need to do something in 64-bit and 32-bit Matlab.

To my great chagrin ... Recently, I found out that the settings for 32 and 64 bit Matlab are stored in one folder:

C:\Users\$USERNAME\AppData\Roaming\MathWorks\MATLAB\$MATLAB_VERSION 

Here is a simple thing I'm trying to do ... and it fails because they have the same settings folder:

• open 32 bit matlab
• select 32-bit C / C ++ compiler
• compile code
• close matlab 32 bit
• open 64 bit matlab bit
• compile the same code
• ERROR ... your compiler is not 64 bits ...

I get an error in a 64-bit matrix ... because! ARG! as soon as I change something in the 32-bit matrix ... it changes the same setting to 64-bit Matlab bit! In this case, this parameter is a C / C ++ compiler.

---

Is there a way to have all your settings for 32-bit and 64-bit Matlab bits in separate folders?

• If so, how?
• If not, using the same settings folder is there a workaround for this particular parameter (does compopts.bat store the selected C / C ++ compiler)?

Here is an example of what I would like to have:

 C:\Users\$USERNAME\AppData\Roaming\MathWorks\MATLAB\$MATLAB_VERSION\32bit C:\Users\$USERNAME\AppData\Roaming\MathWorks\MATLAB\$MATLAB_VERSION\64bit 

Answer 1

You can change the location of the settings directory using the MATLAB_PREFDIR environment MATLAB_PREFDIR . See your technical solution for complete instructions.