MATLAB: Mex -largeArrayDims in Linux

largearraydimslinuxmex

Hi,
I would like to run my matlab code on Linux.
I would need to reformulate this line:
lapacklib = fullfile(matlabroot, …
'extern', 'lib', 'win64', 'microsoft', 'libmwlapack.lib');
mex('-v', '-g', '-largeArrayDims-largeArrayDims', 'PCM_speciation1_DAE.c', lapacklib);
I hve tried this formulation: mex -largeArrayDims PCM_speciation1_DAE.c
But I get this error: Error using mex
/var/tmp/pbs.14518.hnode4/mex_5537398213038998_2534/PCM_speciation1_DAE.o: In function `MatDiv':
PCM_speciation1_DAE.c:(.text+0x665b): undefined reference to `dgesv_'
collect2: error: ld returned 1 exit status
Thank you in advance for the help.

Best Answer

You didn't give it the LAPACK library to link to, so there is no dgesv_ function, hence the error. You need to take this:
lapacklib = fullfile(matlabroot, ...
  'extern', 'lib', 'win64', 'microsoft', 'libmwlapack.lib');
and turn it into the location and name for your system (which obviously isn't going to be 'win64'), and feed that into the mex command like it originally was.
Related Question