MATLAB: How to select the version of MATLAB that is opened with the engOpen or engOpenSingleUse MATLAB Engine API functions in MATLAB 7.1 (R14SP3)

MATLAB

I have multiple versions of MATLAB installed on my machine. I would like to specify which of these versions is opened when issuing the engOpen or engOpenSingleUse function in a MATLAB Engine application.

Best Answer

The ability to programmatically select the version of MATLAB that is opened when issuing the engOpen or engOpenSingleUse function is not available in MATLAB 7.1 (R14SP3). On a Windows platform, the version of MATLAB that is used when issuing these functions is the last one that was registered by starting MATLAB with the /regserver option.

Related Solutions

MATLAB: Do I get an assertion violation when I port the 32-bit FORTRAN MEX source to a 64-bit MATLAB 7.6 (R2008a)

Some legacy FORTRAN code use the following syntax to define the MEXFUNCTION:

SUBROUTINE MEXFUNCTION(NLHS, PLHS, NRHS, PRHS)
INTEGER PLHS(*), PRHS(*)
INTEGER NLHS, NRHS

This might compile and execute on a 32-bit platform, however, the recommended syntax is to use MWPOINTER as shown below (for any platform).

This is essential for the MEX file to execute successfully on a 64-bit platform.

SUBROUTINE MEXFUNCTION(NLHS, PLHS, NRHS, PRHS)
MWPOINTER PLHS(*), PRHS(*)
INTEGER NLHS, NRHS

MATLAB: What do the return values from the engOpen and engOpenSingleUse functions mean when there is a failure to open MATLAB

There are only three return results for the engOpenSingleUse function:

 0 = success

-2 = error - second argument must be NULL

-3 = error - engOpenSingleUse failed

You should try reregistering MATLAB on those systems that it fails on, as shown here:

http://www.mathworks.com/access/helpdesk_r13/help/techdoc/apiref/engopensingleuse.shtml

For more information on the engOpenSIngleUse function, issue the following command at the MATLAB prompt:

doc engOpenSingleUse

Best Answer

Related Solutions

MATLAB: Do I get an assertion violation when I port the 32-bit FORTRAN MEX source to a 64-bit MATLAB 7.6 (R2008a)

MATLAB: What do the return values from the engOpen and engOpenSingleUse functions mean when there is a failure to open MATLAB

Related Question