MATLAB: Openmp mex commands for R2010b

Question

Hello everyone,

Can anyone please provide me with the right flags to mex .c with openmp?

The following produces the best results on mac:

mex CC="gcc-4.2" LD="gcc-4.2" COPTIMFLAGS="$COPTIMFLAGS -fopenmp -O2 -DNDEBUG" LDOPTIMFLAGS="$LDOPTIMFLAGS -fopenmp -O2" -lgomp filename.c

I would like the, windows 7 x64, windows 7 x86, linux x64, linux x86 equivalent of the above.

Regards,

Jayveer

Answer 1

On Windows using Microsoft Visual Studio I add the /openmp option to the relevant line of my mexopts.bat file, thus:

set COMPFLAGS=... /openmp

On Windows 7 my mexopts.bat file is found in: C:\Users\$USERNAME\AppData\Roaming\MathWorks\MATLAB\R20XXx